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碳

鋼

C-Mo

1/2Cr-1/2Mo

1Cr-1/2Mo

11/2Cr-1/2Mo

2Cr-1/2Mo

21/4Cr-1Mo

5Cr-1/2Mo

7Cr-1/2Mo

9Cr-1Mo

18-8

碳  鋼   

--

B

C

C

C

C

C

D

D

D

A

C-Mo

B

B

C

C

C

C

C

D

D

D

A

1/2Cr-1/2Mo

C

C

C

C

C

C

C

D

D

D

E

1Cr-1/2Mo

C

C

C

C

C

C

C

D

D

D

E

11/2Cr-1/2Mo

C

C

C

C

C

C

C

D

D

D

E

2Cr-1/2Mo

C

C

C

C

C

C

C

D

D

D

E

21/4Cr-1Mo

C

C

C

C

C

C

C

D

D

D

E

5Cr-1/2Mo

D

D

D

D

D

D

D

D

D

D

E

7Cr-1/2Mo

D

D

D

D

D

D

D

D

D

D

E

9Cr-1Mo

D

D

D

D

D

D

D

D

D

D

E

18-8

A

A

E

E

E

E

E

E

E

E

_