EN10155 S355J0W Weathering Steel Plate - Knowledge

S355J0W Steel Description

S355J0W steel is a weather resistant steel which could more accurately be termed as an "Atmospheric Corrosion Resistant Steel" and often referred to as Corten-B steel.

S355J0W

Weathering means that due to S355J0W steel chemical compositions, S355J0W steel chemical composition can increase resistance to atmospheric corrosion compared to other steels. This is because it forms a protective layer on S355J0W steel surface under the influence of the weather.

S355J0W steel Deliver condition

Hot Rolled, Cold Rolled, Normalized, Quenched, Tempering, Thermal Mechanical Control Process (TMCP), Electroslag Remelting Technical, HIC test.

S355J0W steel Application range

The S355J0W steels are used for various types of welded, bolted and riveted constructions e.g. steel frame structures, bridges, tanks and containers, exhaust systems, vehicles and equipment constructions and so on.

S355J0W

S355J0W steel Chemical composition (%)

C	Si	Mn	P	S	Cr	N	Cu	CEV
max 0.16	Max 0.5	0.5 - 1.5	max 0.035	Max 0.035	0.4 -0.8	max 0.009	0.25-0.55	Max 0.52
Note: 1. The steels may show a Ni content of max 0.65 %; 2. For long S355J0W steel, the P and S content can be 0.005% higher; 3. The S355J0W steel may contain max. 0.30 % Mo and max. 0.15 % Zr 4. It is permissible to exceed the specified values provided that for each increase of 0.001 % N, the P max. content will be reduced by 0.005 %; the N content of the ladle analysis, however, shall not be more than 0.012 % 5.The max. value for nitrogen does not apply if the chemical composition shows a minimum total Al content of 0.020 % or if sufficient other N binding elements are present.

S355J0W steel mechanical property

Nominal thickness (mm)	to 16	16-40	40-63	63-80	80-100	100-150
ReH - Minimum yield strength (MPa)	355	345	335	325	315	295
Nominal thickness (mm)	To 3		3-100		100-150
Rm -Tensile strength (MPa)	510-680		470-630		450-600
Nominal thickness (mm)	3-40		40-63		63-100	100-150
A - Minimum elongation Lo = 5,65 √ So (%)	22		21		20	18
Nominal thickness (mm)	1.5 - 2		2-2.5		2.5-3
A - Minimum elongation Lo = Lo = 80 mm (%)	16		17		18
Temperature	-20			0
Notch impact test. Min. absorbed energy	27			27

About Us

Gnee Steel Group, established in 2008, is a steel manufacturing company specialized in weathering steel materials and fabricated components.

With a full range of standard Corten steel grades (ASTM, EN, JIS, GB), we also offer custom processing services including cutting, welding, surface rusting, and large-scale project fabrication.

If you're looking for reliable weathering steel solutions or want to learn more about its applications, feel free to reach out at corten@gneesteelgroup.com - our team will respond promptly with professional support.

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