耐腐蚀结构钢板 Corrosion resistant structure steel plate
1.规格、牌号及交货状态 Size grade and delivery condition
耐候钢Weathering steel |
标准Standard |
牌号 Grade |
规格 Size mm |
交货状态 Condition |
国标GB |
GB4171 |
Q235NH Q295NH Q355NH Q355GNH |
6-80*1600-3250 |
AR、CR、N |
欧标 Eu |
EN10025-5 |
S355J2W、S355K2W、S355J0W、S355J0WP、S355J2WP |
6-80*1600-3250 |
AR、CR、N |
美标 Amercian |
ASTM A709 |
A709Gr50W B、A709Gr50W(T)(F) |
6-80*1600-3250 |
AR、CR、N |
2.成分 Chemical composition %
牌号Grade |
C |
Mn |
Si |
P |
S |
Cr |
Ni |
Cu |
Q235NH |
≤0.13 |
0.20-0.60 |
0.10-0.40 |
≤0.03 |
≤0.03 |
0.40-0.80 |
≤0.65 |
0.25-0.55 |
S355J0W、S355J2W、S355K2W 、Q355NH |
≤0.15 |
0.50-1.50 |
≤0.50 |
≤0.03 |
≤0.03 |
0.40-0.80 |
≤0.65 |
0.25-0.55 |
S355J0WP、S355J2WP、Q355GNH |
≤0.12 |
≤1.00 |
0.20-0.75 |
0.07-0.15 |
≤0.02 |
0.30-1.25 |
≤0.65 |
0.25-0.55 |
3.性能 Mechanical properties:
⑴、国标GB
牌号Grade |
厚度Thickness mm |
屈服 Yield Mpa |
抗拉 Tensile Mpa |
延伸 Elongation % |
180°弯曲 Bending |
Q235NH |
≤16 |
≥235 |
360-510 |
≥25 |
d=a |
>16-40 |
≥225 |
d=2a |
>40-80 |
≥215 |
≥24 |
Q295NH |
≤16 |
≥295 |
430-560 |
≥24 |
d=2a |
>16-40 |
≥285 |
d=3a |
>40-80 |
≥275 |
≥23 |
Q355NH |
≤16 |
≥355 |
490-630 |
≥22 |
d=2a |
>16-40 |
≥345 |
d=3a |
>40-80 |
≥335 |
≥21 |
Q355GNH |
≤16 |
≥355 |
490-630 |
≥22 |
d=2a |
>16-40 |
≥345 |
d=3a |
|
注:厚度≤6mm的Q295-355级别钢的180°弯曲要求:d=a
Note : Thickness ≤6mm Q295-355 bending requeired d=a.
质量等级 Quality class |
V型缺口冲击试验 Impact V |
试样方向 Direction |
温度temperature ℃ |
冲击吸收能量 KV2/J |
A |
纵向 longitudinal |
— |
— |
B |
20 |
≥47 |
C |
0 |
≥34 |
D |
-20 |
≥34 |
E |
-40 |
≥27 |
⑵.欧标系列European standard series:
牌号grade |
厚度thickness mm |
屈服yield ReH,Mpa |
抗拉tensile Rm,Mpa |
延伸 elongation % |
V型纵向冲击impact (L/)J |
180°弯曲bending |
S355J0W |
≤16 |
≥355 |
470-630 |
≥20 |
≥27(40) |
d=2a |
S355J2W |
>16-40 |
≥345 |
S355K2W |
>40-63 |
≥335 |
≥19 |
|
>63-80 |
≥325 |
≥18 |
S355J0WP |
≤16 |
≥355 |
≥20 |
≥27 |
S355J2WP |
>16-40 |
≥345 |
注:拉伸标距为L0=5.65 ;质量等级J0做0℃冲击,质量等级J2做-20℃冲击,质量等级K2做-20℃冲击、且冲击值
≥40J。
Note : tensile gauge length L0=5.65. Class J0 impact at 0℃,J2 at -20℃.Class K2 at -20℃,J≥40J.
⑶.美标系列 Americian standard series:
牌号Grde |
厚度 Thickness mm |
屈服 Yield ReL |
抗拉 Tensile Rm |
A50 |
V型纵向冲击Impact (L/)J |
180°冷弯 bending |
MPa |
% |
温度temperture |
J |
A709Gr50W |
≤50 |
≥345 |
≥485 |
≥21 |
21℃, 4℃, -12℃ |
≥34 |
d=3a |
>50-100 |
≥41 |