牌號
C
Mn
Si
Cr
Mo
HRC
ND100
3.0-5.0
0.50-2.50
0.50-2.50
25.0-29.0
0.50-1.00
55-62
ND100M
3.0-5.0
0.50-2.50
0.50-2.50
25.0-29.0
0.50-1.00
57-62
ND100MO
4.0-5.5
0.50-2.50
0.50-2.50
27.0-33.0
0.80-1.20
60-63
ND150NO
4.0-5.5
0.50-2.50
0.50-2.50
27.0-33.0
0.80-1.20
62-65
?