C
|
Cr
|
Ni+Co
|
Al
|
Ti
|
Fe
|
Nb+Ta
|
Mn
|
Si
|
P
|
S
|
Cu
|
≤0.15
|
14.0~17.0
|
≥72
|
≤0.35
|
≤0.50
|
6.00~10.00
|
≤1.00
|
≤1.00
|
≤0.50
|
≤0.040
|
≤0.015
|
≤0.50
|
品种
|
θ/℃
|
拉伸性能
|
HBS
|
弯曲试验
|
|||
σb/MPa
|
σP0.2/MPa
|
δ5/%
|
φ/%
|
||||
棒材
|
20
|
≥585
|
≥240
|
≥30
|
-
|
134~217
|
-
|