Specifications

400x400 square hollow section
1)Thickness:5-40mm
2)Size: 20*20-600*600mm
3)material:S355 S235,ASTM A500
4)Cert: CE API 5L FP

400x400 square holloe section

 

 EN 10219 S275 S355 Black cold rolled mild carbon erw welded square steel pipe 

 

1)Thickness:5-40mm
2)Size(dia.): 20*30-800*600mm

                       20*20-800*800mm
3)material:S355 Q235 ST37 ST52
4)Certifications : CE ISO FPC API 5L
5Lengh:6-12m

 

Detail Information: s355 square steel pipe

steel grade		% by mass, maximum
		C specified thickness (mm)		Si	Mn	P	S
steel name	steel number
		< = 40	> 40 < 120
S235JRH	1.0039	0.17	0.2	--	1.4	0.040	0.040
S275JOH	1.0149	0.20	0.22	--	1.5	0.035	0.035
S275J2H	1.0138	0.20	0.22	--	1.5	0.030	0.030
S355JOH	1.0547	0.22	0.22	0.55	1.6	0.035	0.035
S355J2H	1.0576	0.22	0.22	0.55	1.6	0.030	0.030
S355K2H	1.0512	0.22	0.22	0.55	1.6	0.030	0.030

 

MECHANICAL PROPERTY
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

 

Our products include steel pipe (ERW pipe & seamless pipe ,LSAW pipe,SSAW pipe ,hollow section square /

rectangular pipe & ApI Tubing list) according to the international standard .

 

 

 

Box Column Size
400*400*(20-50mm)	500*500*(20-80mm)
700*700*(20-80mm)	800*800*(20-80mm)
1000*1000*(20-100mm)	1500*1500*(20-100mm)

 

 

 

 

 

 

 

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