C
|
Cr
|
Ni+Co
|
Al
|
Ti
|
Fe
|
Nb+Ta
|
Co
|
Mn
|
Si
|
S
|
Cu
|
P
|
不大于
|
||||||||||||
≤0.08
|
14.0~17.0
|
≥70.0
|
0.40~1.00
|
2.25~2.75
|
5.00~9.00
|
0.70~1.20
|
1.00
|
1.00
|
0.50
|
0.010
|
0.50
|
0.015
|
品种
|
规格δ/mm
|
热处理制度
|
σb/MPa
|
σP0.2/MPa
|
δ4D/%
|
φ/%
|
HRC
|
板材
|
≤0.60
|
交货状态
|
≤930
|
≤515
|
≥30
|
-
|
-
|
>0.60
|
≤930
|
≤515
|
≥35
|
-
|
-
|
||
管材
|
|
交货状态
|
≤965
|
≤550
|
≥35
|
-
|
-
|
交货状态+730℃±10℃,8h,炉冷55℃/h或空冷到620℃±10℃,8h,空冷,总时效时间不小于18h
|
≥1170
|
≥790
|
≥15
|
-
|
-
|