Kelas Baja

Komposisi kimia

C

Si

Mn

P

S

P+S

Cr

Mo

Ni

Cu

37Mn^a

0.34~0.38

0.10~0.35

1.35~1.75

≤0.020

≤0.010

≤0.025

≤0.30

-

≤0.30

≤0.20

30CrMo^a,c

0.26~0.33

0.17~0.37

0.40~0.70

≤0.020

≤0.010

≤0.025

0.80~1.10

0.15~0.25

≤0.30

≤0.20

35CrMo^a

0.32~0.40

0.17~0.37

0.40~0.70

≤0.020

≤0.010

≤0.025

0.80~1.10

0.15~0.25

≤0.30

≤0.20

42CrMo^a,d

0.38~0.45

0.17~0.37

0.50~0.80

≤0.020

≤0.010

≤0.025

0.90~1.20

0.15~0.25

≤0.30

≤0.20

30CrMnSiA

0.28~0.34

0.90~1.20

0.80~1.10

≤0.020

≤0.020

≤0.030

0.80~1.10

≤0.10

≤0.30

≤0.20

34CrMo4

0.30~0.37

0.15~0.35

0.60~0.90

≤0.020

≤0.010

≤0.025

0.90~1.20

0.15~0.30

≤0.30

≤0.20

b. Miturut syarat-syarat sing dibutuhake dening panuku, sawise negosiasi antarane supplier lan panuku, lan kanthi pranata sing kacathet ing kontrak, bisa ditemtokake manawa Al kudu luwih gedhe utawa padha karo 0,020%.

c. Pesenan bisa digawe kanggo 30CrMoE, sing komposisi kimiane padha karo 30CrMo.

d. Pesenan bisa digawe kanggo 42CrMoE, sing komposisi kimiane padha karo 42CrMo.