Product Details

with big stock thick wall square/ rectangular seamless steel tube/pipe/tubing

1.Product Description: rectangular hollow section

electric-resistance-welded
item	Chemical composition max %					Item	mechanical property
steel	C %	Mn %	S %	P %	Si %	steel	yield point Mpa	tensile strength Mpa	elongation %
Grade A	0.25	0.95	0.045	0.05	--	Grade A	205 (min)	330 (min)	26-30
Grade B	0.3	1.2	0.045	0.05	--	Grade B	240 (min)	415 (min)	21-26
Quality Standard: ASTM A53 ASTM A500 Standard Specification for Pipe, Black,and Hot-Dipped, Zinc-Coated, Welded and Seamless

chemical requirement					mechanical property		shaped structural tubing
Element	Composition. %						Grade A	Grade B	Grade C	Grade D
	Grade A, B and D		Grade C		tensile strength,min,	psi	45000	58000	62000	58000
	Heat Analysis	Product Analysis	Heat Analysis	Product Analysis		Mpa	310	400	427	400
					yield strength, min,	psi	33000	42000	46000	36000
C, max	0.26	0.30	0.23	0.27		Mpa	228	290	317	250
Mn, max	…	…	1.35	1.40	elongation in 2in. (50.8mm),min %		25	23	21	23
P, max	0.035	0.045	0.035	0.045	quality standard: ASTM A500 standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes
S, max	0.035	0.045	0.035	0.045
Copper,(when specified) min	0.20	0.18	0.20	0.18

steel grade		mnimum yield strength Mpa						tensile strength Mpa			mnimum elongation
		specified thickness mm						specified thickness mm			specified thickness
steel name	steel number	< = 16	17 - 40	41 - 63	64 -80	81 - 100	101 - 120	< = 3	4 - 100	101 - 120	< = 40	41--63	64--100	101--120
S235JRH	1.0039	235	225	215	215	215	195	360--510	360--510	350--500	26	25	24	22
S275JOH	1.0149	275	265	355	245	235	225	430--580	410--560	400--540	23	22	21	19
S275J2H	1.0138
S355JOH	1.0547	355	345	355	325	295	295	510--680	470--630	450--600	22	21	20	18
S355J2H	1.0576
S355K2H	1.0512

2. Specification

square				rectangular
OD mm	WT mm	OD mm	WT mm	OD mm	WT mm	OD mm	WT mm	OD mm	WT mm
20*20	1.0-2.0	130*130	2.5-12.0	20*30	1.0-3.0	50*80	1.8-6.0	100*150	2.5-12.0
25*25	1.0-3.0	140*140	2.5-12.0	20*40	1.2-3.0	50*90	1.8-6.0	100*200	2.5-12.0
30*30	1.2-3.0	150*150	2.5-12.0	25*40	1.2-3.0	50*100	1.5-6.0	100*250	2.5-12.0
40*40	1.2-5.0	160*160	2.5-12.0	25*50	1.2-5.0	50*120	1.5-6.0	100*300	3.0-12.0
50*50	1.2-6.0	180*180	2.5-12.0	30*40	1.2-3.0	60*80	1.3-6.0	100*400	11.5-12.0
60*60	1.3-6.0	200*200	3.0-12.0	30*50	1.2-5.0	60*90	1.5-6.0	150*200	2.5-12.0
70*70	1.3-6.0	220*220	3.5-12.0	30*60	1.2-6.0	60*100	1.5-6.0	150*250	3.0-12.0
75*75	1.5-6.0	250*250	4.5-12.0	40*50	1.2-6.0	60*120	1.5-6.0	150*300	3.0-12.0
80*80	1.5-6.0	300*300	4.0-12.0	40*60	1.2-6.0	75*125	1.5-12.0	200*300	4.5-12.0
90*90	2.0-6.0	350*350	6.0-12.0	40*80	1.3-6.0	80*100	1.5-6.0	200*400	4.75-12.0
100*100	1.5-12.0	400*400	6.0-12.0	40*100	1.3-6.0	80*120	1.5-12.0	300*400	5.75-12.0
120*120	2.5-12.0			50*70	1.3-6.0	80*140	2.5-12.0	300*500	6.0-12.0
We are the manufacturer of steel pipe with many years experience.						80*160	2.5-12.0	400*600	6-12.0

3.Picture of goods

4.certificate.

5. company intruction
Sino Metal Material Co., Ltd. is a professional manufacturer & exporter of rectangular hollow section, specialized in the field for many years .Our main market is South East Asia, South-Asia, The Middle East, North America , South America, Australia . If you are the buyer from these area , please don't hesitate to contact us , for we have many advantages in these market . but if you are not from these area, also please feel free to contact us , we would send our best offer for your reference .
For more details about the rectangular hollow section, please feel free to contact us, we would send the info in time.

If you need our pipe, please contact me . Do not hesitate!

SINO METAL MATERIAL CO. , LTD

Contact person:Betty

Tel:86-22-59518858

Fax:86-22-59518955

Tel:+86-18920303001

Skype:betty1992123

QQ:1571699840

Address : CUIJIAZHUANG DEVELOPMENT ZONE.DAQIUZHUANG

VILLAGE JINGHAI COUNTY.TIANJIN.CHINA

Email:sinometalbetty(at)foxmail(dot)com