ASTM A500 Pre-Galvanized Square Steel Pipe Factory

Square & rectangular pipes tube are versatile, durable, and cost-effective building materials used in construction, industrial, furniture, and decorative applications. Womic Steel offers a wide range of steel square tubes in various sizes and thicknesses. Rectangular/ Square hollow section are formed from the coils and then ran through a series of dies. They are are welded from the inside to form their shape.The packaging method for steel pipes involves cleaning, grouping, wrapping, bundling, securing, labeling, palletizing (if necessary), containerization, stowing, sealing, transportation, and unpacking. Different kinds of steel pipes and fittings with different packing methods. This comprehensive process ensures that the steel pipes shipping and arrive at their destination in optimal condition, ready for their intended use.

API 5L: GR.B, X42, X46, X52, X56, X60, X65, X70, X80

API 5CT: J55, K55, N80, L80, P110

ASTM A252: GR.1, GR.2, GR.3

EN 10219-1: S235JRH, S275J0H, S275J2H, S355J0H, S355J2H, S355K2H

EN10210: S235JRH, S275J0H, S275J2H, S355J0H, S355J2H, S355K2H

ASTM A53/A53M: GR.A, GR.B

BS 1387: Class A, Class B

ASTM A135/A135M: GR.A, GR.B

EN 10217: P195TR1 / P195TR2, P235TR1 / P235TR2, P265TR1 / P265TR2

DIN 2458: St37.0, St44.0, St52.0

AS/NZS 1163: Grade C250 , Grade C350, Grade C450

SANS 657-3: 2015

Raw Material Checking, Chemical Analysis, Mechanical Test, Visual Inspection, Tension Test, Dimension Check, Bend Test , Flattening Test, Impact Test, DWT Test, NDT Test, Hydrostatic Test, Hardness Test….. Marking, Painting before delivery.

Steel pipes serve as the backbone of modern industrial and civil engineering, supporting a wide array of applications that contribute to the development of societies and economies worldwide. The steel pipes and fittings we Womic Steel produced widely used for petroleum, gas, fuel & water pipeline, offshore /onshore, sea port construction projects & building, dredging, structural Steel, piling and bridge construction projects, also precision steel tubes for conveyor roller production, ect...

Mechanical properties of material
Grade	Yield Strength	Tensile Strength	Elongation
A500.Gr.b	46 ksi	58 ksi	23%
A513.GR.B	72 ksi	87 ksi	10%

Square & rectangular pipes tube is an extruded pipes that is widely used for all types of fabrication projects where lightweight and corrosion resistance is a primary concern. Square tube has square corners inside and outside, with no weld seam.Production Process Classification of Square Steel Pipe According to the production process, square pipe is divided into: hot rolled seamless square pipe, cold drawn seamless square pipe, extruded square pipe without dimension, welded square pipe. The welded square / rectangular pipe is divided into: (a) according to the process of an arc welded square pipe, resistance welded square pipe (high frequency, low frequency), gas welded square pipe, furnace welded square pipe. (b) according to the weld of straight welded square pipe, spiral welded square pipe.

Process of hollow section (Square/Rectangular tubes): ● Cold Formed Square Hollow Section ● Cold Formed Rectangular Hollow Section ● Hot Finish Square Hollow Section ● Hot Finish Rectangular Hollow Section

Square steel pipes/tubes production sizes: Out diameter: 1616mm ~ 10001000mm Wall thickness: 0.4mm ~ 50mm
Sizes by MM (diameter)	Thickness
mm	mm
16mm×16mm	0.4mm～1.5mm
18mm×18mm	0.4mm～1.5mm
20mm×20mm	0.4mm～3mm
22mm×22mm	0.4mm～3mm
25mm×25mm	0.6mm～3mm
30mm×30mm	0.6mm～4mm
32mm×32mm	0.6mm～4mm
34mm×34mm	1mm～2mm
35mm×35mm	1mm～4mm
38mm×38mm	1mm～4mm
40mm×40mm	1mm～4.5mm
44mm×44mm	1mm～4.5mm
45mm×45mm	1mm～5mm
50mm×50mm	1mm～5mm
52mm×52mm	1mm～5mm
60mm×60mm	1mm～5mm
70mm×70mm	2mm～6mm
75mm×75mm	2mm～6mm
76mm×76mm	2mm～6mm
80mm×80mm	2mm～8mm
85mm×85mm	2mm～8mm
90mm×90mm	2mm～8mm
95mm×95mm	2mm～8mm
100mm×100mm	2mm～8mm
120mm×120mm	4mm～8mm
125mm×125mm	4mm～8mm
130mm×130mm	4mm～8mm
140mm×140mm	6mm～10mm
150mm×150mm	6mm～10mm
160mm×160mm	6mm～10mm
180mm×180mm	6mm～12mm
200mm×200mm	6mm～30mm
220mm×220mm	6mm～30mm
250mm×250mm	6mm～30mm
270mm×270mm	6mm～30mm
280mm×280mm	6mm～30mm
300mm×300mm	8mm～30mm
320mm×320mm	8mm～30mm
350mm×350mm	8mm～30mm
380mm×380mm	8mm～30mm
400mm×400mm	8mm～30mm
420mm×420mm	10mm～30mm
450mm×450mm	10mm～30mm
480mm×480mm	10mm～30mm
500mm×500mm	10mm～30mm
550mm×550mm	10mm～40mm
600mm×600mm	10mm～40mm
700mm×700mm	10mm～40mm
800mm×800mm	10mm～50mm
900mm×900mm	10mm～50mm
1000mm×1000mm	10mm～50mm

Rectangular steel pipes/tubes production sizes: Out diameter: 4020mm ~ 300200mm Wall thickness: 1.6mm ~ 16mm
SIZE mm	WEIGHT kg/m	EST. LBS. PER FT.	SIZE mm	WEIGHT kg/m
SIZE mm	WEIGHT kg/m	EST. LBS. PER FT.	SIZE mm	WEIGHT kg/m	EST. LBS. PER FT.
40 x 20 x 1.60	1.38	0.93	150 x 100 x 6.30	22.4	15.08
40 x 20 x 2.60	2.1	1.41	150 x 100 x 8.00	27.7	18.64
50 x 30 x 1.60	1.88	1.27	150 x 100 x 10.00	35.714	24.04
50 x 30 x 2.60	2.92	1.97	160 x 80 x 3.20	11.5	7.74
50 x 30 x 2.90	3.32	2.23	160 x 80 x 4.00	14.3	9.62
50 x 30 x 3.20	3.49	2.35	160 x 80 x 5.00	17.4	11.71
50 x 30 x 4.00	4.41	2.97	160 x 80 x 6.30	21.4	14.4
60 x 40 x 2.60	3.73	2.51	160 x 80 x 8.00	26.4	17.77
60 x 40 x 2.90	4.23	2.85	160 x 80 x 10.00	32.545	21.87
60 x 40 x 3.20	4.5	3.03	160 x 90 x 4.50	16.6	11.17
60 x 40 x 4.00	5.67	3.82	160 x 90 x 5.60	20.4	13.73
70 x 40 x 2.90	4.69	3.16	160 x 90 x 7.10	25.3	17.03
70 x 40 x 4.00	6.3	4.24	160 x 90 x 8.80	30.5	20.53
80 x 40 x 2.60	4.55	3.06	160 x 90 x 10.00	34.1	22.95
80 x 40 x 2.90	5.14	3.46	180 x 100 x 4.00	16.8	11.31
80 x 40 x 3.20	5.5	3.7	180 x 100 x 5.00	20.5	13.8
80 x 40 x 4.00	6.93	4.66	180 x 100 x 5.60	23	15.48
80 x 40 x 5.00	8.47	5.7	180 x 100 x 6.30	25.4	17.09
80 x 40 x 6.30	10.4	7	180 x 100 x 7.10	28.6	19.25
90 x 50 x 2.60	5.37	3.61	180 x 100 x 8.80	34.7	23.35
90 x 50 x 3.20	6.64	4.47	180 x 100 x 10.00	38.8	26.11
90 x 50 x 4.00	8.18	5.51	180 x 100 x 12.50	46.9	31.56
90 x 50 x 5.00	10	6.73	200 x 100 x 4.00	18	12.11
90 x 50 x 6.30	12.3	8.28	200 x 100 x 5.00	22.1	14.2
90 x 50 x 7.10	13.7	9.22	200 x 100 x 6.30	27.4	18.44
100 x 50 x 3.60	7.98	5.37	200 x 100 x 8.00	34	22.88
100 x 50 x 4.50	9.83	6.62	200 x 100 x 10.00	40.6	27.32
100 x 50 x 5.60	12	8.08	200 x 120 x 4.00	19.3	12.99
100 x 50 x 7.10	14.8	9.96	200 x 120 x 5.00	23.7	15.95
100 x 50 x 8.00	16.4	11.04	200 x 120 x 6.30	29.6	19.92
100 x 60 x 3.20	7.51	5.05	200 x 120 x 8.00	36.5	24.56
100 x 60 x 3.60	8.55	5.75	200 x 120 x 8.80	36.9	24.83
100 x 60 x 4.50	10.5	7.07	200 x 120 x 10.00	45.1	31.62
100 x 60 x 5.60	12.9	8.68	200 x 120 x 12.50	54.7	38.87
100 x 60 x 6.30	13.5	9.09	200 x 120 x 14.20	60.9	43.64
100 x 60 x 7.10	15.9	10.7	220 x 80 x 6.00	26.816	18.02
100 x 60 x 8.80	19.2	12.92	220 x 120 x 6.30	31.6	21.27
100 x 80 x 6.3	16.37	11.02	220 x 120 x 8.00	39.4	26.52
110 x 60 x 3.60	9.05	6.09	220 x 120 x 10.00	46.2	31.09
110 x 60 x 4.50	11.1	7.47	220 x 120 x 12.50	58.7	39.51
110 x 60 x 5.60	13.6	9.15	220 x 120 x 14.20	65.4	44.01
110 x 60 x 7.10	16.8	11.31	250 x 150 x 5.00	29.9	20.12
110 x 60 x 8.80	20.1	13.53	250 x 150 x 6.30	37.3	25.1
110 x 70 x 3.20	8.51	5.73	250 x 150 x 8.00	46.5	31.29
110 x 70 x 4.00	10.8	7.27	250 x 150 x 10.00	56.3	37.89
110 x 70 x 5.00	12.7	8.55	250 x 150 x 12.50	68.3	45.97
110 x 70 x 6.30	15.5	10.43	260 x 140 x 6.30	37.5	25.23
120 x 60 x 3.20	8.51	5.73	260 x 140 x 8.00	46.9	31.56
120 x 60 x 4.00	10.6	7.13	260 x 140 x 10.00	57.6	38.76
120 x 60 x 5.00	13	8.75	260 x 140 x 12.50	70.4	47.38
120 x 60 x 6.30	16.1	10.84	260 x 140 x 14.20	78.8	53.03
120 x 60 x 7.10	17.9	12.05	260 x 180 x 6.30	41.5	27.93
120 x 60 x 8.80	21.5	14.47	260 x 180 x 8.00	52	35
120 x 80 x 3.20	12.1	8.14	260 x 180 x 10.00	63.9	43
120 x 80 x 6.30	17.5	11.78	260 x 180 x 12.50	78.3	52.7
140 x 70 x 4.00	12.5	8.41	260 x 180 x 14.20	87.7	59.02
140 x 70 x 5.00	15.4	10.36	300 x 100 x 5.00	30.268	20.34
140 x 70 x 6.30	19	12.79	300 x 100 x 8.00	47.679	32.04
140 x 70 x 7.10	21.2	14.27	300 x 100 x 10.00	58.979	39.63
140 x 70 x 8.80	25.6	17.23	300 x 200 x 5.00	37.8	25.44
140 x 80 x 3.20	10.5	7.07	300 x 200 x 6.30	47.1	31.7
140 x 80 x 4.00	13.1	8.82	300 x 200 x 8.00	59.1	39.77
140 x 80 x 5.00	16.2	10.9	300 x 200 x 10.00	72	48.46
140 x 80 x 6.30	20	13.46	300 x 200 x 12.00	88	59.22
140 x 80 x 8.00	24.8	16.69
140 x 80 x 10.00	30.2	20.32
150 x 100 x 3.20	12	8.08
150 x 100 x 4.00	14.9	10.03

ASTM A500 Grade B, ASTM A513 (1020-1026), ASTM A36 (A36), EN 10210:S235, S355, S235JRH, S355J2H, S355NH, EN 10219:S235, S355, S235JRH, S275J0H, S275J2H, S355J0H, S355J2H.

Equivalent specfications
EN 10210-1	NF A 49501 NF A 35501	DIN 17100 DIN 17123/4/5	BS 4360	UNI 7806
S235JRH	E 24-2	St 37.2	–	Fe 360 B
S275JOH	E 28-3	St 44.3 U	43 C	Fe 430 C
S275J2H	E 28-4	St 44.3 N	43 D	Fe 430 D
S355JOH	E 36-3	St 52.3 U	50 C	Fe 510 C
S355J2H	E 36-4	St 52.3 N	50 D	Fe 510 D
S275NH	–	St E 285 N	–	–
S275NLH	–	TSt E 285 N	43 EE	–
S355NH	E 355 R	St E 355 N	–	–
S355NLH	–	TSt E 355 N	50 EE	–
S460NH	E 460 R	St E 460 N	–	–
S460NLH	–	TSt E 460 N	55 EE	–

Norm		Yield Strength			Tensile Strength		Min.elogation				Min.percent properties
Acc.to EN10027/1 and IC 10	Acc.to EN10027/2	Norminal W.T.mm			Norminal W.T.mm		Longit.		Cross		Test temperature°C	Average min.impact value
		≤16	>6	>40	<3	≤3≤65	Norminal W.T.mm
			≤65	≤65			≤40	>40	>40	≤65
			≤65	≤65			≤40	≤65	≤40	≤65
S253JRH	1.0039	235	225	215	360-510	340-470	26	25	24	23	20	27
S275JOH	1.0149	275	265	255	410-580	410-560	22	21	20	19	0	27
S275J2H	1.0138	275	265	255	430-560	410-560	22	21	20	19	-20	27
S355JOH	1.0547	355	345	335	510-680	490-630	22	21	20	19	0	27
S355J2H	1.0576	355	345	335	510-680	490-630	22	21	20	19	-20	27

Chemical composition of square a& rectangular pipes material
Grade	element	C	Mn	P	S
ASTM A500 Gr.b	%	0.05%-0.23%	0.3%-0.6%	0.04%	0.04%

EN10027/1	C% max (Norminal W.T.(mm)		Si% max	Mn% max	P% max	S% max	N% max
and IC 10	≤ 40		Si% max	Mn% max	P% max	S% max	N% max
S235JRH	0.17	0.2	-	1.4	0.045	0.045	0.009
S275JOH	0.2	0.22	-	1.5	0.04	0.04	0.009
S275J2H	0.2	0.22	-	1.5	0.035	0.035	-
S355JOH	0.22	0.22	0.55	1.6	0.04	0.04	0.009
S355J2H	0.22	0.22	0.55	1.6	0.035	0.035	-