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10��20��35��45 ��
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�������
|
�ƺ�
|
����״̬
|
|
BK
|
BKW
|
BKS
|
NBK
|
|
����ǿ��(MPa)
|
�쳤��(%)
|
����ǿ��(MPa)
|
�쳤��(%)
|
����ǿ��(MPa)
|
�쳤��(%)
|
����ǿ��(MPa)
|
�쳤��(%)
|
����ǿ��(MPa)
|
|
≥
|
|
10
|
410
|
6
|
375
|
10
|
335
|
12
|
335
|
24
|
|
|
20
|
510
|
5
|
450
|
8
|
430
|
10
|
410
|
20
|
|
|
35
|
590
|
4
|
550
|
6
|
520
|
8
|
530
|
17
|
|
|
45
|
645
|
4
|
630
|
5
|
610
|
7
|
600
|
14
|
|
|
40Cr
|
≥784
|
≥12
|
|
|
|
|
|
|
|
|
37Mn5
|
≥784
|
≥12
|
|
|
|
|
|
|
|
��ѧ�ɷ���
|
�ƺ�
|
��ѧ�ɷ�%
|
|
C
|
Si
|
Mn
|
S
|
P
|
Cr
|
|
10
|
0.07-0.13
|
0.17-0.37
|
0.35-0.65
|
≤0.035
|
≤0.035
|
|
|
20
|
0.17-0.23
|
0.17-0.37
|
0.35-0.65
|
≤0.035
|
≤0.035
|
|
|
35
|
0.32-0.39
|
0.17-0.37
|
0.35-0.65
|
≤0.035
|
≤0.035
|
|
|
45
|
0.42-0.50
|
0.17-0.37
|
0.50-0.80
|
≤0.035
|
≤0.035
|
|
|
40Cr
|
0.37-0.44
|
0.17-0.37
|
0.50-0.80
|
≤0.035
|
≤0.035
|
0.08-1.10
|
|
25Mn
|
0.22-0.29
|
0.17-0.37
|
0.70-1.00
|
≤0.035
|
≤0.035
|
≤0.25
|
|
37Mn5
|
0.30-0.39
|
0.15-0.30
|
1.20-1.50
|
≤0.015
|
≤0.020
|
|
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