EN 10025-5 S235J2W steel vs EN 10025-2 S235J2 steel

EN10025-5 S235J2W steel is mainly used in hard weather owning to its property for resisting corrosion. S235J2 is a non-alloy structural steels and falls in Part 2 of the EN 10025 specification.

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S235J2W steel under European standard EN10025-5 is a atmospheric corrosion resistance steel or weathering steel. EN10025-5 S235J2W steel is mainly used in hard weather owning to its property for resisting corrosion. With the minimum yield strength 235 Mpa,and the tensile strength for the thickness below 100mm shall be within 360 to 510 Mpa.
S235J2 grade is a non-alloy structural steels and falls in Part 2 of the EN 10025 specification. The ‘S’ denotes a ‘structural steel’ with a yield strength of 235 MPa. The ‘J2’ designation confirms that the material has undergone a Charpy V-notch impact test at 27 joules at the temperature of -20°C.

Below are the main data of EN 10025-5 S235J2W steel and EN 10025-2 S235J2 steel.

S235J2W steel chemical composition (%)

Material	C max.	Si max.	Mn	P max.	S max.	Cr	N	Cu
S235J2W	0.13	0.40	0.20-0.60	0.035	0.030	0.40-0.80	-	0.25-0.55

EN 10025-2 S235J2 steel chemical composition (%)

C			Si	Mn	P	S	N	Cu
≤16	＞16≤40	＞40
0.19	0.19	0.19	-	1.50	0.035	0.035	-	0.60

S235J2W steel mechanical properties

Material	Min. Yield Strength Reh MPa						Tensile Strength Rm MPa
	Nominal Thickness (mm)						Nominal Thickness (mm)
	≤16	>16 ≤40	>40 ≤63	>63 ≤80	>80 ≤100	>100 ≤150	>3	>3 ≤100	>100 ≤150
S235J2W	235	225	215	215	215	195	360-510	360-510	350-500

EN 10025-2 S235J2 steel mechanical properties

Grade	Mechanical Property
S235J2	Yield Strength mm Min Mpa									Tensile Strength mm Min Mpa
	≤16	＞16 ≤ 40	＞40 ≤ 63	＞63 ≤ 80	＞80 ≤ 100	＞100 ≤ 150	＞150 ≤ 200	＞200 ≤ 250	＞250 ≤ 400	＜3	≥ 3 ≤ 100	＞100 ≤ 150	＞150 ≤ 250	＞250 ≤ 400
	235	225	215	215	215	195	185	175	165	360-510	360-510	350-500	340-490	330-480

EN10025-5 S235J2W weathering steel is especially intended for use in welded bolted and riveted components, which shall have enhanced resistance to atmospheric corrosion. This structural steel with improved atmospheric corrosion resistance, it is used to manufacture structural parts such as containers, railway vehicles, oil derricks, harbor construction, oil production platforms, and containers containing hydrogen sulfide corrosive medium in chemical and petroleum equipment.

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