Galvanized HSS Tube Size and Specification Chart

Galvanized Hollow Structural Sections (HSS) are widely used in various construction and engineering projects due to their durability, strength, and resistance to corrosion. This article provides a comprehensive guide to the size and specifications of galvanized HSS tubes, including the types of galvanized HSS tubes, their common sizes, and the specifications you need to know when selecting these products for your project.

What is Galvanized HSS Tube?

Galvanized square tube is also known as square and rectangular cold-bent hollow steel, referred to as square tube and rectangular tube. Galvanized square tube is a name for square tube and rectangular tube, that is, steel tube with equal side length. It is made by rolling steel strip after process treatment. Generally, the steel strip is unpacked, flattened, curled, welded to form a round tube, and then rolled from the round tube into a square tube and then cut into the required length.

Galvanized HSS tubes are essential components in a variety of industries, particularly in construction, infrastructure, machinery, and marine applications. Their corrosion resistance makes them particularly suitable for outdoor or exposed environments, where regular steel would degrade more quickly.

Galvanized HSS Tube Sizes

The sizes of galvanized HSS tubes vary depending on the shape and application. Below is a general overview of the most common sizes available in the market.

1.Rectangular HSS Tube Sizes

Rectangular HSS tubes are commonly used for beams, columns, and other load-bearing structural components. The most common rectangular HSS sizes include:

Size mm	kg/m	Size mm	kg/m
40 x 20 x 2.0	1.68	40 x 20 x 2.5	2.03
40 x 20 x 3.0	2.36	40 x 25 x 1.5	1.44
40 x 25 x 2.0	1.89	40 x 25 x 2.5	2.23
50 x 25 x 2.0	2.21	50 x 25 x 2.5	2.72
50 x 25 x 3.0	3.22	50 x 30 x 2.5	2.92
50 x 30 x 3.0	3.45	50 x 30 x 4.0	4.46
50 x 40 x 3.0	3.77	60 x 40 x 2.0	2.93
60 x 40 x 2.5	3.71	60 x 40 x 3.0	4.39
60 x 40 x 4.0	5.72	70 x 50 x 2	3.56
70 x 50 x 2.5	4.39	70 x 50 x 3.0	5.19
70 x 50 x 4.0	6.71	80 x 40 x 2.5	4.26
80 x 40 x 3.0	5.34	80 x 40 x 4.0	6.97
80 x 40 x 5.0	8.54	80 x 50 x 3.0	5.66
80 x 50 x 4.0	7.34	90 x 50 x 3.0	6.28
90 x 50 x 3.6	7.46	90 x 50 x 5.0	10.11
100 x 50 x 2.5	5.63	100 x 50 x 3.0	6.75
100 x 50 x 4.0	8.86	100 x 50 x 5.0	10.9
100 x 60 x 3.0	7.22	100 x 60 x 3.6	8.59
100 x 60 x 5.0	11.7	120 x 80 x 2.5	7.65
120 x 80 x 3.0	9.03	120 x 80 x 4.0	12
120 x 80 x 5.0	14.8	120 x 80 x 6.0	17.6
120 x 80 x 8.0	22.9	150 x 100 x 5.0	18.7
150 x 100 x 6.0	22.3	150 x 100 x 8.0	29.1
150 x 100 x 10.0	35.7	160 x 80 x 5.0	18
160 x 80 x 6.0	21.3	160 x 80 x 8.0	27.9
200 x 100 x 5.0	22.7	200 x 100 x 6.0	27
200 x 100 x 8.0	35.4	200 x 100 x 10.0	43.6
250 x 150 x 5.0	30.5	250 x 150 x 6.0	38.2
250 x 150 x 8.0	48	250 x 150 x 10	59.3
300 x 200 x 6.0	48.1	300 x 200 x 8.0	60.5
300 x 200 x 10.0	75	400 x 200 x 8.0	73.1
400 x 200 x 10.0	90.7	400 x 200 x 16	142

2.Square HSS Tube Sizes

Square HSS tubes are used in structural applications where equal sides are required for uniform strength in all directions. These tubes are available in a variety of sizes, with the most common being:

Size mm	kg/m	Size mm	kg/m
20 x 20 x 2.0	1.12	20 x 20 x 2.5	1.35
25 x 25 x 1.5	1.06	25 x 25 x 2.0	1.43
25 X 25 X 2.5	1.74	25 X 25 X 3.0	2.04
30 X 30 X 2.0	1.68	30 X 30 X 2.5	2.14
30 X 30 X 3.0	2.51	40 x 40 x 1.5	1.81
40 x 40 x 2.0	2.31	40 x 40 x 2.5	2.92
40 x 40 x 3.0	3.45	40 x 40 x 4.0	4.46
40 x 40 x 5.0	5.4	50 x 50 x 1.5	2.28
50 x 50 x 2.0	2.93	50 x 50 x 2.5	3.71
50 x 50 x 3.0	4.39	50 x 50 x 4.0	5.72
50 x 50 x 5.0	6.97	60 x 60 x 3.0	5.34
60 x 60 x 4.0	6.97	60 x 60 x 5.0	8.54
60 x 60 x 6.0	9.45	70 x 70 x 3.0	6.28
70 x 70 x 3.6	7.46	70 x 70 x 5.0	10.11
70 x 70 x 6.3	12.5	70 x 70 x 8	15.3
75 x 75 x 3.0	7.07	80 x 80 x 3.0	7.22
80 x 80 x 3.6	8.59	80 x 80 x 5.0	11.7
80 x 80 x 6.0	13.9	90 x 90 x 3.0	8.01
90 x 90 x 3.6	9.72	90 x 90 x 5.0	13.3
90 x 90 x 6.0	15.76	90 x 90 x 8.0	20.4
100 x 100 x 3.0	8.96	100 x 100 x 4.0	12
100 x 100 x 5.0	14.8	100 x 100 x 5.0	14.8
100 x 100 x 6.0	16.19	100 x 100 x 8.0	22.9
100 x 100 x 10	27.9	120 x 120 x 5	18
120 x 120 x 6.0	21.3	120 X 120 X 6.3	22.3
120 x 120 x 8.0	27.9	120 x 120 x 10	34.2
120 X 120 X 12	35.8	120 X 120 X 12.5	41.6
140 X 140 X 5.0	21.1	140 X 140 X 6.3	26.3
140 X 140 X 8	32.9	140 X 140 X 10	40.4
140 X 140 X 12.5	49.5	150 X 150 X 5.0	22.7
150 X 150 X 6.3	28.3	150 X 150 X 8.0	35.4
150 X 150 X 10	43.6	150 X 150 X 12.5	53.4
150 X 150 X 16	66.4	150 X 150 X 16	66.4
180 X 180 X 5	27.4	180 X 180 X 6.3	34.2
180 X 180 X 8	43	180 X 180 X 10	53
180 X 180 X 12.5	65.2	180 X 180 X 16	81.4
200 X 200 X 5	30.5	200 X 200 X 6	35.8
200 x 200 x 6.3	38.2	200 x 200 x 8	48
200 x 200 x 10	59.3	200 x 200 x 12.5	73
200 x 200 x 16	91.5	250 x 250 x 6.3	48.1
250 x 250 x 8	60.5	250 x 250 x 10	75
250 x 250 x 12.5	92.6	250 x 250 x 16	117
300 x 300 x 6.3	57.9	300 x 300 x 8	73.1
300 x 300 x 10	57.9	300 x 300 x 8	90.7
300 x 300 x 12.5	112	300 x 300 x 16	142
350 x 350 x 8	85.7	350 x 350 x 10	106
350 x 350 x 12.5	132	350 x 350 x 16	167
400 x 400 x 10	122	400 x 400 x 12	141
400 x 400 x 12.5mm	152	400 x 400 x 16	192

Specifications of Galvanized HSS Tubes

When selecting galvanized HSS tubes for your project, it’s important to understand the specifications and standards that these tubes must adhere to. Below are some of the key specifications to consider:

Galvanized steel pipes	CHS (Circle hollow section)	RHS (Rectangular hollow section)	SHS (Square hollow section)
Technique:	Hot dip
Usage:	Construction / building materials steel pipe Scaffolding pipe            Fence post steel pipe              Fire protection steel pipe Greenhouse steel pipe            Low pressure liquid, water, gas, oil, line pipe Irrigation pipe                 Handrail pipe
Pre galvanized Pipe Specifications:	OD 12-219mm WT 0.8-2.3mm Length: 1-6m	OD 8*16-50*100mm WT 0.8-2.3mm Length: 1-6m	OD 12*12-100*100mm WT 0.8-2.3mm Length: 1-6m
Hot Dipped Galvanized Pipe Specifications:	OD 20-660mm WT 1.5-18.0mm Length: 1-12m	OD 20*30-300*650mm WT 1.5-18.0mm Length: 1-12m	OD 20*20-500*500mm WT 1.5-18.0mm Length: 1-12m
Standard:	BS EN 39, BS 1387, BS EN 10255, API 5L, ASTM A53, ASTM A500, ASTM A795, ISO65, ANSI C80, DIN2440, JIS G3444, GB/T3091	BS EN 10219 ASTM A500, JIS G3466, GB/T6728	BS EN 10219 ASTM A500, JIS G3466, GB/T6728
Material:	S195, S235, S345/  GRA, GRB/  STK400/  Q195, Q235, Q345
Surface:	1. pre-galvanized (Zinc coating: 40-80g/m2) hot dipped galvanized (Zinc coating: 200-600g/m2 ) 2. oiled with PVC wrapped 3. varnished / painted in black or red or other color 4. Anticorrosive coating: 3PE / 3PP / FBE / Epoxy

How to calculate the weight of galvanized square tube?

Galvanized square tube is a hollow square section steel tube with square cross-section shape and size made of hot-rolled or cold-rolled galvanized strip steel or galvanized coil as blank, cold-bent and then welded by high-frequency welding, or a galvanized square tube made of pre-made cold-bent hollow steel tube by hot-dip galvanizing.

The calculation formula of galvanized square tube is: 4 * thickness * (side length-thickness) * 0.00785, where the side length and wall thickness are in millimeters (mm). Directly substitute the values into the above formula to get the weight of square tube per meter in kilograms.

For example, for a square tube of 30 x 30 x 2.5 mm, the weight per meter can be calculated according to the above formula: 4 x 2.5 x (30-2.5) x 7.85=275 x 7.85=2158.75 grams, which is about 2.16 kilograms.

When the wall thickness and side length are both in millimeters, 4x wall thickness x (side length - wall thickness) is used to calculate the volume of the square tube per meter in cubic centimeters (cm3), and then multiplied by the specific gravity of iron, 7.85 grams per cubic centimeter, the weight of the square tube per meter in kilograms is obtained.

The above is the calculation method of the weight of galvanized square tubes brought to you by the editor. I hope it will help you understand galvanized square tubes.

Galvanized Hollow Structural Sections (HSS)Suppliers and Manufacturers

BAOWI Steel offers high-quality galvanized square and rectangular HSS tubes with reliable strength, precision, and corrosion resistance. With advanced manufacturing, strict quality control, and competitive pricing, we deliver products that meet international standards.

Contact us today for fast quotes and dependable supply.