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朝展化學(xué)成分
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
標準
|
0.26~0.40
|
£1.00
|
£1.00
|
£0.04
|
£0.030
|
12.0~14.0
|
一般
|
0.30
|
0.50
|
0.50
|
0.022
|
0.002
|
13.20
|
區(qū)分
|
備注
|
||||
Ys (Mpa)
|
Ts (Mpa)
|
El (%)
|
Hv
|
||
標準
|
≥ 225
|
≥ 540
|
≥ 18
|
≤ 247
|
NO.2B/0.7t
|
一般
|
370
|
625
|
23
|
180
|
密度
(g/cm3)
|
磁性
|
比熱250C
(J/kg.0C)
|
熱導(dǎo)率
1000C(W/m. 0C)
|
熱膨脹率20~1000C
(10-6/0C)
|
7.75
|
有
|
460
|
23.8
|
10.3
|
牌 號
|
化學(xué)成分(質(zhì)量分數(shù))(%)
|
|||||||||
碳C
|
Si
|
Mn
|
P
|
S
|
Ni
|
Cr
|
M0
|
其他
|
||
馬氏體型
|
||||||||||
lCrl2
|
≤ O.15
|
≤0.50
|
≤1.00
|
≤0.035
|
≤O.030
|
③
|
L1.50~13.00
|
|
|
|
lCrl3
|
≤ O.15
|
≤1.00
|
≤1.00
|
≤0.035
|
≤O.030
|
③
|
13.50~11.50
|
|
|
|
0Crl3
|
≤O.08
|
≤1.00
|
≤1.00
|
≤O.035
|
≤O.030
|
③
|
13.50~
11.50
|
|
|
|
YlCrl3
|
≤ O.15
|
≤1.00
|
≤1.25
|
≤O.060
|
≥O.15
|
③
|
12.00~14.00
|
①
|
|
|
lCrl3M0
|
O.08~ 0.18
|
≤0.60
|
≤1.00
|
≤O.035
|
≤0.030
|
③
|
11.50~14.00
|
0.30~0.60
|
|
|
2Crl3
|
0.16 ~O.25
|
≤1.00
|
≤1.00
|
≤O.035
|
≤O.030
|
③
|
12.00~14.00
|
|
|
|
O.26~
O.35
|
≤1.00
|
≤1.00
|
≤O.035
|
≤O.030
|
③
|
12.00~14.00
|
|
|
||
Y3Crl3
|
O.26~
O.40
|
≤1.00
|
≤1.25
|
≤O.060
|
≥0.15
|
③
|
12.00~14.00
|
①
|
|
|
3Crl3M0
|
O.28
~
0.35
|
≤0.80
|
≤1.00
|
≤0.035
|
≤O.030
|
③
|
12.00~14.00
|
O.50~1.00
|
|
|
4Crl3
|
0.36~
O.45
|
≤O.60
|
≤0.80
|
≤O.035
|
≤0.030
|
③
|
12.00~
14.00
|
|
|
|
1Crl7N2
|
0.11~0.17
|
≤O.80
|
≤O.80
|
≤0.035
|
≤O.030
|
1.50~2.50
|
16.00~18.00
|
|
|
|
7Crl7
|
O.60~
O.75
|
≤1.00
|
≤1.00
|
≤0.035
|
≤O.030
|
③
|
16.00~18.00
|
①
|
|
|
8Cr17
|
0.75~
O.95
|
≤1.00
|
≤1.00
|
≤O.035
|
≤O.030
|
③
|
16.00~18.00
|
④
|
|
|
9Crl8
|
0.90~
1.00
|
≤O.80
|
≤0.80
|
≤O.035
|
≤0.030
|
③
|
17.00~19.00
|
④
|
|
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