The difference between S235J0 and S235J0W

The difference between S235J0 and S235J0W is that S235J0 is a carbon structural steel and the standard is EN 10025-2. S235J0W is weathering structural steel, the standard is EN 10025-5.
 

The difference in chemical composition

EN 10025-2 S235J0 steel plate chemical composition

Grade	Chemical Composition
S235J0	The Element Max (%)
	C			Si	Mn	P	S	N	Cu
	≤16	＞16≤40	＞40
	0.19	0.19	0.19	-	1.50	0.040	0.040	0.014	0.60

EN 10025-5 S235J0W steel chemical composition (%)

Grade	Number	C max.	Si max.	Mn	P	S max.	N max.	Cr	Cu
S235J0W	1.8958	0.13	0.40	0.20 - 0.60	max. 0.035	0.035	0.009	0.40 - 0.80	0.25-0.55

 

The difference in mechanical properties

EN 10025-2 S235J0 steel plate mechanical properties

Grade	Mechanical Property
S235J0	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	-	360-510	360-510	350-500	340-490	-

EN 10025-5 S235J0W steel plate mechanical properties

EN 10025-5	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
S235J0W	235	225	215	215	215	195	360-510	360-510	350-500

 

The difference in application

S235J0 European standard carbon structural steel, 0°C impact, S235J0 is used to manufacture welding, bolting and riveting structures. S235J0W is a weather-resistant structural steel improved on the basis of S235J0. S235J0W is used for welding, bolting and riveting parts. This steel grade enhances the ability to resist atmoSPHEric corrosion at ambient temperature. It is added in order to achieve corrosion resistance. Certain specific alloying elements, such as P, Cu, Cr, Ni, Mo, etc., form a protective oxide layer on the metal surface under various climatic conditions.

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