(1)化65Nb钢学成分
C
|
Si
|
Mn
|
Cr
|
W
|
Mo
|
V
|
Nb
|
P
|
S
|
0.60~0.70
|
≤0.40 |
≤0.40
|
3.80~4.40
|
2.50~3.50
|
1.80~2.50
|
0.80~1.20
|
0.20~0.35
|
≤0.020
|
≤0.010
|
(3)65Nb钢热加工
<*n>项目*n>
|
<*n>加热温度/℃*n>
|
<*n>始锻温度/℃*n>
|
<*n>终锻温度/℃*n>
|
<*n>冷却方式*n>
|
<*n>钢锭*n>
|
<*n>1140~1180*n>
|
<*n>1100~1150*n>
|
<*n>≥900*n>
|
<*n>缓冷(砂冷或坑冷)*n>
|
<*n>钢坯*n>
|
<*n>1120~1150*n>
|
<*n>1080~1120*n>
|
<*n>≥850*n>
|
<*n>缓冷(砂冷或坑冷)*n>
|
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