C
|
Mn
|
P
|
S
|
Si
|
Cr
|
Mo
|
0.05-0.17
|
0.40-0.65
|
0.035
|
0.035
|
0.50-0.80
|
1.00-1.50
|
0.45-0.65
|
抗拉強(qiáng)度σb (MPa)
|
屈服強(qiáng)度σs (MPa)
|
伸長(zhǎng)率δ5 (%)
|
斷面收縮率ψ(%)
|
沖擊功Akv (J)
|
沖擊韌性值αkv (J/cm2)
|
硬度
|
|
440(45)
|
≥295(30)
|
≥22
|
≥60
|
≥94
|
≥118(12)
|
≤179HB
|