S355 J0W Weathering Steel from Masteel

Like S355 J0WP, S355 J0W is a weathering steel and is an equivalent to Corten B.

As the material rusts when exposed to atmospheric elements, the material builds its own protective layer which prevents the steel from further oxidation. Therefore S355 J0W, like all weathering steels, offers excellent, cost effective protection against atmospheric conditions without the need for painting or external treatment.

S355 J0WP tends to be used for structures which use thinner materials.

Grades & Equivalents of S355 J0W Weathering Steel

The grades and equivalents for S355 J0W Weathering Steel are provided in the table below.

EN 10025-5:2004 Corten®
S355 J0WP Corten® A
S355 J0W & S355 J2W Corten® B

Chemical Composition of S355 J0W Weathering Steel

The chemical composition of S355 J0W Weathering Steel is provided in the table below.

Designation Chemical Composition
 (% by mass
- max unless stated)
Mechanical Property (min)
Type No. De
oxidation
C Si Mn P S N Cr Cu Others Impact Energy
KV (test temp)
° C J
S355J0W 1.8959 FN 0.16 0.50 0.50/
1.50
0.040 0.040 0.009 0.40/
0.80
0.25/
0.55
Ni 0.65 Mo 0 27

Mechanical Properties of S355 J0W Weathering Steel

The mechanical properties of S355 J0W Weathering Steel are provided in the tables below.

Type No. Yield strength for thickness (mm) Tensile strength
for thickness (mm)
Test piece
orientation
≤16 >16 ≤ 40 >40 ≤ 63 >63 ≤ 80 >80 ≤ 100 >3 >3 ≤ 100
N/mm2 N/mm2
S355J0W 1.8959 355 345 335 325 315 510/680 490/630 L

Type No. Elongation A for thicknesses in mm
>1.5≤2 >2≤2.5 >2.5≤3.0 >3≤40 >40≤63 >63≤100
%
S355J0W 1.8959 19 17 18 22 21 20

This information has been sourced, reviewed and adapted from materials provided by Masteel UK Ltd.

For more information on this source, please visit Masteel UK Ltd.

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