S355J2WP steel grade is a hot rolled products of structural steels in technical delivery conditions with improved atmospheric corrosion resistance.The main alloying elements are chromium nickel and copper with added phosphorous which gives it excellent self protecting qualities. As the steel reacts with elements in the atmosphere, the material forms a layer of rust over time which in essence protects the steel from corrosion.
Chemical composition % of the Product analysis of grade S355J2WP
|
C |
Si |
Mn |
Cu |
P |
S |
Cr |
N |
|
0.15 |
0.80 |
1.10 |
0.20-0.60 |
0.05-0.16 |
0.035 |
0.25-1.35 |
0.010 |
Mechanical properties of grade S355J2WP
|
Temperature |
-20 |
-10 |
0 |
20 |
|
Notch impact test. Min. absorbed energy J |
27 |
|
Nominal thickness (mm) |
to 16 |
16 - 40 |
40 - 63 |
63 - 80 |
80 - 100 |
100 - 150 |
|
ReH - Minimum yield strength (MPa) |
355 |
345 |
|
Nominal thickness (mm) |
to 3 |
3 - 100 |
100-150 |
|
Rm -Tensile strength (MPa) |
510-680 |
470-630 |
|
Nominal thickness (mm) |
≥1.5＜2 |
≥2﹤2.5 |
≥2.5＜3 |
≥3＜40 |
≥40﹤63 |
≥6﹤100 |
≥100﹤150 |
|
A - Minimum elongation Lo = 5,65 √ So (%) Longitudinal |
16 |
17 |
18 |
22 |
