EN10025-5 S355J0W steel

S355J0W Steel is a structural weathering steel, which is also called atmospheric corrosion resistant steel, under EN10025-5 standard. S355J0W steel, S is short for Structural steel,355 is for its minimum yield strength for this steel shall be 355Mpa,W is for weather steel.

EN10025-5 S355J0W Chemical Composition   

Grade	Chemical Composition
S355J0W	The Element Max (%)
	C	Si	Mn	P	S	N	Cr	Cu
	0.19	0.55	0.45-1.60	0.040	0.040	0.010	0.35-0.85	0.20-0.60

S355J0W steel has main alloying elements are chromium, nickel and copper with added phosphorous, which gives it awesome self-protection qualities. S355J0W builds its own protective layer, which prevents the steel from further oxidation when exposed to atmospheric elements. Therefore, S355J0W steel offers excellent, cost effective protection against atmospheric conditions without the need for painting or external treatment.

EN10025-5 S355J0W Mechanical Property

Grade	Mechanical Property
S355J0W	Yield Strength mm Min(Mpa)						Tensile Strength mm Min(Mpa)			ElongationMin,%
	≤16	＞16 ≤ 40	＞40 ≤ 63	＞63 ≤ 80	＞80 ≤ 100	＞100 ≤ 150	＜3	≥ 3 ≤ 100	≥ 100 ≤ 150	＞ 1.5 ≤ 2	＞ 2 ≤ 2.5	＞2.5 ＜ 3	＞3 ≤ 40	＞40 ≤ 63	＞63 ≤ 100	＞100 ≤ 150
	355	345	335	325	315	295	510-680	470-630	450-600	16	17	18	22	21	20	18

After taking delivery and done all the mill tests, the mill would issue Mill Test Certificates(short for MTC) for each good plate. Each MTC should indicate Steel Grade(S355J0W),Technical specification(EN10025-5),Rolling number, Batch number, Chemical composition and Mechanical property, Plates dimensions, Weight and so on. Shanghai Katalor Enterprises company have the professional teams, if you have any questions, please contact us freely.