易切钢的牌号及化学成分 ( 摘自 GB / T8731 — 1988 )
|
钢号 |
化学成分 ( 质量分数 ) , % |
|||||
|
C ( 碳 ) |
Si ( 硅 ) |
Mn ( 锰 ) |
S ( 硫 ) |
P ( 磷 ) |
Pb ( 铅 ) |
|
|
Y12 |
0 . 08 ~ 0 . 16 |
0 . 15 ~ 0 . 35 |
0 . 70 ~ 1 . 00 |
0 . 10 ~ 0 . 20 |
0 . 08 ~ 0 . 15 |
— |
|
Y12Pb |
0 . 08 ~ 0 . 16 |
≤ 0 . 15 |
0 . 70 ~ 1 . 10 |
0 . 15 ~ 0 . 25 |
0 . 05 ~ 0 . 10 |
0 . 15 ~ 0 . 35 |
|
Y15 |
0 . 10 ~ 0 . 18 |
≤ 0 . 15 |
0 . 80 ~ 1 . 20 |
0 . 23 ~ 0 . 33 |
0 . 05 ~ 0 . 10 |
— |
|
Y15Pb |
0 . 10 ~ 0 . 18 |
≤ 0 . 15 |
0 . 80 ~ 1 . 20 |
0 . 23 ~ 0 . 33 |
0 . 05 ~ 0 . 10 |
0 . 15 ~ 0 . 35 |
|
Y20 |
0 . 17 ~ 0 . 25 |
0 . 15 ~ 0 . 35 |
0 . 70 ~ 1 . 00 |
0 . 08 ~ 0 . 15 |
≤ 0 . 06 |
— |
|
Y30 |
0 . 27 ~ 0 . 35 |
0 . 15 ~ 0 . 35 |
0 . 70 ~ 1 . 00 |
0 . 08 ~ 0 . 15 |
≤ 0 . 06 |
— |
|
Y35 |
0 . 32 ~ 0 . 40 |
0 . 15 ~ 0 . 35 |
0 . 70 ~ 1 . 00 |
0 . 08 ~ 0 . 15 |
≤ 0 . 06 |
— |
|
Y40Mn |
0 . 37 ~ 0 . 45 |
0 . 15 ~ 0 . 35 |
1 . 20 ~ 1 . 55 |
0 . 20 ~ 0 . 30 |
≤ 0 . 05 |
— |
|
Y45Ca |
0 . 42 ~ 0 . 50 |
0 . 2 ~ 0 . 40 |
0 . 60 ~ 0 . 90 |
0 . 04 ~ 0 . 08 |
≤ 0 . 04 |
0 . 002 ~ 0 . 006Ca |
