|
標(biāo)準(zhǔn) |
牌號 |
抗拉強度(Mpa) |
屈服強度(Mpa) |
伸長率(％) |
|
GB3087 |
10 |
335-475 |
≥195 |
≥24 |
|
20 |
410-550 |
≥2鑄鐵/DIV> |
≥20 |
|
標(biāo)準(zhǔn) |
牌號 |
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 |
/ | |