Schedule 160 Steel Pipe Dimension

Schedule 160 Steel Pipe

Schedule 160 steel pipes are high-pressure pipes with thick walls designed for demanding applications. These pipes exhibit excellent corrosion resistance, mechanical strength, and thermal stability, making them ideal for high-pressure environments. Additionally, their low maintenance costs and easy cleaning contribute to their widespread use in various industries.The dimensions of Schedule 160 pipes depend on their nominal pipe size (NPS) and wall thickness. As the diameter and wall thickness increase, so does the pressure rating of the pipe. This increased thickness enhances their ability to withstand extreme pressure conditions.

Based on the schedule of the pipes and the NPS of the pipes the outer diameter and thickness of the wall can be obtained. Schedule 160 Steel Pipes is one such pipes that has a display of the properties of steel such as resistance to corrosion along with excellent strength. sch 160 pipes also offers thermal and chemical resistivity along with the low cost of maintenance, and ease of cleaning. It requires less time for preparation before fabrication. sch 160 pipes dimensions vary depending upon the requirement of the application. As the wall thickness and diameter of the pipes increases so does the schedule 160 pipes pressure rating. The increased thickness helps in increasing the pressure rating.

schedule 160 pipes dimensions as per the older system of standards were classified into the standard wall, double extra strong, and extra strong. Generally, ISO 6078 has classified this schedule 160 pipes as a dimensionless specification however, it can be said that it is indirectly related to the diameter. A 2 inchSch 160 pipes thickness is said to be 0.334 with an outer diameter of 2.375. Moreover, a 6 inches NPS pipes with 6.625 outer diameterad 5.189 inner diameters has ansch 160 pipes thickness in mm 0.718. On the other hand a 4 inch pipes with an outer diameter of 4.5 and internal diameter of 3.43. Has anSch 160 pipes thickness of 0.531.

Definition of Schedule 160 Carbon Steel Pipe

Schedule 160 Carbon Steel Pipe is made up of different carbon steel material grades. There are different pressure classes and schedules that are used in the selection of the pipes for different applications.The pipes are necessary only when high pressure applications are involved. The pipes can range from 4 inches to 24 inches in diameter, they can range from 11mm to 46mm in wall thickness and the lengths can vary. The Schedule 160 Pipe Suppliers also produce custom length and cut to sizes of the pipes. Carbon steels are generally preferred for their toughness. But with toughness, the strength reduced in carbon steel. So the Schedule 160 Pipe made up of carbon steel is used in less impact stress and less corrosive applications with high pressure. Water lines and gas lines can use the pipes but they are often coated to have better corrosion resistance. Please contact us for more information and the pricing of Sch 160 Pipe.

Schedule 160 Steel Pipe Dimension

Pipe schedule 160 chart, dimensions, weight and pipe wall thickness,Pipes schedule 160 chart gives dimensions of steel pipes schedule 160. Chart includes sizes in inches and in millimeters.

Nominal size [inches]	Outside diameter [inches]	Outside diameter [mm]	Wall thickness [inches]	Wall thickness [mm]	Weight [lb/ft]	Weight [kg/m]
1/2	0.840	21.3	0.188	4.78	1.31	1.95
3/4	1.050	26.7	0.219	5.56	1.94	2.90
1	1.320	33.4	0.250	6.35	2.84	4.24
1 1/4	1.660	42.2	0.250	6.35	3.76	5.61
1 1/2	1.900	48.3	0.281	7.14	4.86	7.25
2	2.375	60.3	0.344	8.74	7.46	11.11
2 1/2	2.875	73.0	0.375	9.53	10.01	14.92
3	3.500	88.9	0.438	11.13	14.32	21.35
4	4.500	114.3	0.531	13.49	22.51	33.54
5	5.563	141.3	0.625	15.88	32.96	49.11
6	6.625	168.3	0.719	18.26	45.35	67.56
8	8.625	219.1	0.906	23.01	74.69	111.27
10	10.750	273.0	1.125	28.58	115.64	172.33
12	12.750	323.8	1.312	33.32	160.27	238.76
14	14.000	355.6	1.406	35.71	189.11	281.70
16	16.000	406.4	1.594	40.49	245.25	365.35
18	18.000	457.0	1.781	45.24	308.50	459.37
20	20.000	508.0	1.969	50.01	379.17	564.81
22	22.000	559.0	2.125	53.98	451.06	672.26
24	24.000	610.0	2.344	59.54	542.13	808.22

Understanding NPS, OD, and Pipe Schedules: A Guide to ASME B36.10M and B36.19M Standards

When selecting seamless steel pipes or welded steel pipes, understanding the relationship between Nominal Pipe Size (NPS), outside diameter (OD), and wall thickness is crucial. According to ASME B36.10M and ASME B36.19M, the OD and NPS do not always match for pipes between NPS 1/8 to 12. For instance, an NPS 12 pipe has an actual OD of 12.75 inches (324 mm), whereas for NPS 14 and above, the OD equals the NPS (e.g., NPS 14 pipe = 14 inches OD).

Originally, NPS values were based on maintaining a consistent inside diameter (ID) with older wall thickness standards. However, as wall thicknesses evolved, the relationship between NPS, OD, and ID changed. Today, the OD of a pipe remains constant for a given NPS, while wall thickness varies by schedule (SCH). This impacts pressure ratings, as per ASME B31.3 Process Piping—a pipe’s pressure resistance decreases when its NPS increases while maintaining the same schedule.

Pipe Schedules and IPS System
Older designations like Standard Wall (STD), Extra Strong (XS), and Double Extra Strong (XXS) are still in use but belong to the Iron Pipe Size (IPS) system, which aligns with NPS. In this system:

STD = SCH 40S (same as SCH 40 for NPS 1/8 to 10)
XS = SCH 80S (same as SCH 80 for NPS 1/8 to 8)
XXS is thicker than SCH 160 for NPS 1/8 to 6, but for NPS 8 and above, SCH 160 is thicker than XXS
For accurate pipe size selection, always refer to ASME B36.10M or B36.19M tables. Whether choosing carbon steel pipes, stainless steel pipes, or seamless pipes for high-pressure applications, understanding these standards helps ensure the right fit for industrial pipelines, oil and gas pipelines, and structural applications.

Common Applications of Sch160 Pipes

1.Oil and Gas Industry – Used in high-pressure pipelines for crude oil and natural gas transport.
2.Power Plants – Essential for high-pressure steam and fluid transfer.
3.Water and Gas Lines – Coated Schedule 160 pipes provide excellent protection in corrosive environments.
4.Petrochemical Industry – Handles high-temperature and high-pressure fluids in refineries.
5.Structural Applications – Provides support in heavy-load construction projects.

Suppliers of Schedule 160 Steel Pipes

At BAOWI Steel, we specialize in providing high-quality Schedule 160 pipes tailored to oil, gas, and industrial applications. Our seamless and welded steel pipes meet ASME and API standards, ensuring superior strength, corrosion resistance, and durability.