What is ASTM A53/A53M?
ASTM A53/A53M is a standard specification for black and hot-dip galvanized, galvanized, welded and seamless steel pipe. This specification covers seamless welded black hot-dip galvanized steel pipe from NPS 1/8 to NPS 26. Steel classified in this standard must be processed in an open hearth, basic oxygen furnace, or electric furnace and must meet the following chemical requirements: carbon, manganese, phosphorus, sulfur, copper, nickel, chromium, molybdenum, and vanadium.
ASTM A53/A53M standard covers the following types of piping systems: Type F furnace butt weld, Grade A continuous weld, Type E electric resistance weld, Grade A and B, and Type S seamless and cold drawn. Grade A is the standard grade and the most commonly used grade. The standard also includes requirements for pipe joining methods, testing, and marking. The nominal diameter of the pipe varies from 1/8 inch to 36 inches. The pipe wall thickness can vary from Schedule 10 to Schedule 160.
The ASTM A53/A53M standard specification is widely used in the construction, oil and gas, and mining industries as it ensures that the pipes are of high quality and suitable for the intended purpose. It is also important for contractors and engineers to be familiar with this specification to ensure that the pipes they use meet the necessary standards.
ASTM A53 Standard Steel Grades
ASTM A53 Grade A
ASTM A53 Grade A steel pipe has a minimum yield strength of 205 MPa. It is suitable for fluid transportation such as oil and gas, and mechanical strength requirements are general applications.
ASTM A53 Grade B
ASTM A53 Grade B steel pipe has a minimum yield strength of 240 MPa. It is suitable for applications that require higher mechanical strength.
Galvanizing (galvanizing) standard requirements
ASTM A53 standard specification includes hot-dip galvanizing (galvanizing) requirements for ASTM A53 Grade B pipe.
In addition, the pipes are also galvanized inside and outside, through the hot-dip galvanizing process, and the zinc thickness of any grade shall meet the B6 specification.
The zinc layer weight shall not be less than 1.8 oz/ft2, 0.55 kg/m2, and each sample weight shall not be less than 1.6 oz/ft2, 0.49 kg/m2, and the sample outer and inner surface weight shall not be less than 1.3 oz/ft2, 0.40 kg/m2.
ASTM A53 Steel Pipe Specifications
A53 pipes are available in three types (F, E, S) and two grades (A, B).
A53 F type is manufactured with furnace butt welds or may have continuous welds (Grade A only)
A53 E type has electric resistance welds (Grade A and B)
A53 S type is seamless pipe, available in Grade A and Grade B)
A53 B grade seamless pipe is our most polar product in this specification, and A53 pipe is usually dual certified A106 B seamless pipe.
Pipe ordered under this specification is suitable for mechanical and pressure service and for ordinary use in steam, water, gas, and air piping. It is suitable for welding and for forming operations involving coiling, bending, and flanging, subject to the following qualifications:
1. Type F is not suitable for flanging.
2. Grade A is the preferred grade when Types S and E are required to be tightly coiled or cold-bent. This provision is not intended to prohibit cold bending of Grade B pipe.
3. Type E may be provided in either non-expanded or cold-expanded form, at the option of the manufacturer.
ASTM A53 pipe size table
ASTM A53 carbon steel pipes to meet the specific needs of your different projects. We provide you with steel pipes in ERW and seamless manufacturing processes. We produce steel pipes strictly in accordance with ASTM A53 standards, strictly controlling material quality, size, wall thickness, chemical composition and mechanical properties.
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Steel pipe dimension drawing ANSI B36.10 & 36.19
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Nominal pipe size
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Outer diameter mm
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Nominal wall thickness table
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NPS
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DN
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OF
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School 5
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School 10
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School 20
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School 30
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School
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School 40
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School 60
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SCH XS
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School 80
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School 100
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School 120
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School 140
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School 160
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SCH XXS
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1/8
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6
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10.3
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1.24
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1.45
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1.73
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1.73
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2.41
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2.41
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|
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1/4
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8
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13.7
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1.65
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1.85
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2.24
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2.24
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3.02
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3.02
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|
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3/8
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10
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17.1
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1.65
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1.85
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2.31
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2.31
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3.20
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3.20
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1/2
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15
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21.3
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1.65
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2.11
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2.41
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2.77
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2.77
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3.73
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3.73
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|
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4.78
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7.47
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3/4
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20
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26.7
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1.65
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2.11
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2.41
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2.87
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2.87
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3.91
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3.91
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5.56
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7.82
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1
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25
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33.4
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1.65
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2.77
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2.9
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3.38
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3.38
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4.55
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4.55
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6.35
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9.09
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1 1/4
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32
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42.2
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1.65
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2.77
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2.97
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3.56
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3.56
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4.85
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4.85
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6.35
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9.70
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1 1/2
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40
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48.3
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1.65
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2.77
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3.18
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3.68
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3.68
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5.08
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5.08
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7.14
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10.15
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2
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50
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60.3
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1.65
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2.77
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3.18
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3.91
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3.91
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5.54
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5.54
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8.74
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11.07
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2 1/2
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65
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73
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2.11
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3.05
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4.78
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5.16
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5.16
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7.01
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7.01
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9.53
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14.02
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3
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80
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88.9
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2.11
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3.05
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4.78
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5.49
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5.49
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7.62
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7.62
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11.13
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15.24
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3 1/2
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90
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101.6
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2.11
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3.05
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4.78
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5.74
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5.74
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8.08
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8.08
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4
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100
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114.3
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2.11
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3.05
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4.78
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6.02
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6.02
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8.56
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8.56
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11.13
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13.49
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17.12
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5
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125
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141.3
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2.77
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3.40
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6.55
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6.55
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9.53
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9.53
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12.70
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15.88
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19.05
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6
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150
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168.3
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2.77
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3.40
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7.11
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7.11
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10.97
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10.97
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14.27
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18.26
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21.95
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8
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200
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219.1
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2.77
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3.76
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6.35
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7.04
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8.18
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8.18
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10.31
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12.70
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12.70
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15.09
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18.26
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20.62
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23.01
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22.23
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10
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250
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273.0
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3.40
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4.19
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6.35
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7.80
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9.27
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9.27
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12.70
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12.70
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15.09
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18.26
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21.44
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25.40
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28.58
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25.40
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12
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300
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323.8
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3.96
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4.57
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6.35
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8.38
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9.53
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10.31
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14.27
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12.70
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17.48
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21.44
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25.40
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28.58
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33.32
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25.40
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14
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350
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355.6
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3.96
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6.35
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7.92
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9.53
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9.53
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11.13
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15.09
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12.70
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19.05
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23.83
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27.79
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31.75
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35.71
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16
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400
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406.4
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4.19
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6.35
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7.92
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9.53
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9.53
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12.70
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16.66
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12.70
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21.44
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26.19
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30.96
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36.53
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40.49
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18
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450
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457
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4.19
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6.35
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7.92
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11.13
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9.53
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14.27
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19.05
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12.70
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23.83
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29.36
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34.93
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39.67
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45.24
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20
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500
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508
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4.78
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6.35
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9.53
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12.70
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9.53
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15.09
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20.62
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12.70
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26.19
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32.54
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38.10
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44.45
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50.01
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22
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550
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559
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4.78
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6.35
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9.53
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12.70
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9.53
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22.23
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12.70
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28.58
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34.93
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41.28
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47.63
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53.98
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24
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600
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610
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5.54
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6.35
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9.53
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14.27
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9.53
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17.48
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24.61
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12.70
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30.96
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38.89
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46.02
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52.37
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59.54
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26
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650
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660
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7.92
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12.70
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9.53
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12.70
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ASTM A53 Chemical Composition
Baowi steel produces ASTM A53 steel pipes in strict accordance with standard specifications, using steel with the correct chemical composition as raw material to ensure the strength, durability and corrosion resistance of the steel pipe. Its chemical composition includes elements such as carbon, silicon, manganese, phosphorus and sulfur. Each element composition is strictly controlled to ensure the quality and performance of the steel pipe.
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A53/A53M - Chemical Requirements
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Component, Maximum, %
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carbon
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manganese
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phosphorus
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sulfur
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Copper A
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Nickel A
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Chrome A
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Molybdenum A
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Vanadium A
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S type (seamless pipe)
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A-level
B-level
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0.25B
0.30C
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0.95
1.20
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0.05
0.05
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0.045
0.045
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0.40
0.40
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0.40
0.40
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0.40
0.40
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0.15
0.15
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0.08
0.08
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Type E (resistance welding)
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A-level
B-level
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0.25B
0.30C
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0.95
1.20
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0.05
0.05
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0.045
0.045
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0.40
0.40
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0.40
0.40
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0.40
0.40
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0.15
0.15
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0.08
0.08
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Type F (Furnace Welded Pipe)
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A-level and B-level
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0.30B
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1.2
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0.05
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0.045
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0.4
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0.4
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0.4
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0.15
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0.08
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A The total content of these five elements shall not exceed 1.00 %.
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B For every 0.01 % reduction in carbon content, the manganese content may be increased by 0.06 %, but the maximum shall not exceed 1.35 %.
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For every 0.01% decrease in C, the manganese content can increase by 0.06%, and the maximum value does not exceed 1.65%.
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ASTM A53 Mechanical Properties
The ASTM A53 carbon steel pipes we produce have passed the standard requirements for tensile strength, yield strength, elongation and other performance requirements, ensuring that each steel pipe is strictly certified to obtain toughness and rigidity to ensure the safety and durability of the project.
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Stretching requirements
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Level A
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B-level
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Tensile strength, minimum, psi [MPa]
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48 000 [330]
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60 000 [415]
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Yield Strength, minimum, psi [MPa]
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30 000 [205]
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35 000 [240]
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Elongation is 2 inches or 50 mm
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A、B
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A、B
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-
A The minimum elongation within 2 inches [50 mm] shall be determined as follows: A The minimum elongation within 2 inches [50 mm] shall be determined as follows:
-
Where?
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e = minimum elongation in 2 inches or 50 mm, rounded to the nearest percent,
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A = 0.75 in2 [500 mm2] or the smaller of the cross-sectional area
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The specification outside diameter of the tensile specimen is calculated.
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or the nominal width of the tensile test specimen and
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The specified wall thickness of the pipe is calculated as
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rounded to the nearest 0.01 in2 [1 square millimeter], and
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U = specification minimum tensile strength, psi [MPa].
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B For minimum values, see Table X4.1 or Table X4.2, whichever is applicable.
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The elongation values required for different combinations of tensile test specimen dimensions and specified minimum tensile strength.
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Related Standards for the Production of ASTM A53 Grade B Pipe
a. A90/ A90M Standard for Test Plans for Galvanized or Zinc Alloy Coatings on Pipe or Steel Products.
b. A370 Standard for Test Plans and Definitions for Mechanical Testing of Steel Products.
c. A 530/A 530M Standard for Common Requirements for Carbon and Alloy Steel Pipe.
d. A 700 Steel Packaging, Marking, and Shipping Plan.
e. A 751 Steel pipe, steel plate, steel chemical analysis test plan.
f. A 865 Steel pipe joints threaded joints, carbon steel, hot-dip galvanized galvanized welded and seamless joints definition.
g. B 6 Standard specification for zinc.
h. E 29 Scheme for using significant figures in test data to evaluate compliance with specifications.
i. 213 Ultrasonic test plan for welded and seamless steel pipes.
j. 309 Eddy current detection and magnetic configuration plan
k. E 570 Magnetic leakage test plan for ferromagnetic steel pipe products
l. E 1806 Steel sampling and iron chemical composition determination plan
ASTM A53 seamless steel pipe production process
The seamless steel pipe manufacturing process is divided into hot-rolled seamless pipe and cold-rolled seamless pipe.
1. Hot-rolled seamless steel pipe production process: pipe billet → heating → piercing → three-roller/oblique continuous rolling → tube removal → sizing → cooling → straightening → water pressure test → marking → lever seamless steel pipe detection effect.
2. Cold drawn seamless steel pipe production process: tube billet → heating → perforation → heading → annealing → pickling → oiling → multiple cold drawing → blank tube → heat treatment → straightening → hydrostatic test → marking → storage.
Tip: Seamless tubes are usually made by drawing a solid shape on a mandrel to form the configuration of the tube. The more common manufacturing method of welded tubes is to roll a flat material strip into a tube and then join the edges together with a longitudinal weld. Welding can be done by resistance welding (type E) or furnace butt welding/continuous welding (type F).
Raw materials for ASTM A53 pipes
The steel used to manufacture ASTM A53 pipes (
seamless steel pipe and welded) should follow the following processes: open-hearth electric furnace or basic oxygen top blowing.
Different grades of steel raw materials are cast independently, and the final transition material needs to be identified. The manufacturer should remove the transition material through any established process that can clearly distinguish the grades.
The welds of
ERW welding process in ASTM A53 B grade pipes shall be heat treated after welding, and the heat treatment temperature shall be at least 540℃ 1000℉.
Therefore, there is no untempered martensitic residue, or other methods that do not use untempered martensitic residue.
If the pipe is cold expanded, the expansion amount shall not exceed 1 1/2% of the pipe diameter.
Application of ASTM A53
1. Construction engineering: underground pipelines, groundwater, hot water transportation.
2. Machining, bearing sleeves, processing machinery parts, etc.
3. Electrical: gas transmission, hydropower fluid pipelines
4. Anti-static pipes for wind farms, etc.
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