標(biāo)準(zhǔn) |
牌號(hào) |
抗拉強(qiáng)度(Mpa) |
屈服強(qiáng)度(Mpa) |
伸長率(%) |
GB3087 |
10 |
335-475 |
≥195 |
≥24 |
20 |
410-550 |
≥245 |
≥20 |
標(biāo)準(zhǔn) |
牌號(hào) |
化學(xué)成分 | |||||||||
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Cu |
Ni |
V | ||
GB3087 |
10 |
0.07-0.14 |
0.17-0.37 |
0.35-0.65 |
≤0.035 |
≤0.035 |
≤0.15 |
/ |
≤0.25 |
≤0.25 |
/ |
20 |
0.17-0.24 |
0.17-0.37 |
0.35-0.65 |
≤0.035 |
≤0.035 |
≤0.25 |
/ |
≤0.25 |
≤0.25 |
/ |