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|
International Grade |
National |
Standard No |
Grade |
Chemical Composition |
45 |
CHINA |
GB/T4354
1994
|
45 |
C0.42～0.50,Si0.17～0.37,Mn0.50～0.80,P≤0.035,
S≤0.035,Ni≤0.25,Cr≤0.25,Cu≤0.25
|
U.S.A |
ASTMA29M
1993a
|
1045 |
C0.43～0.50,Si0.15～0.35,Mn0.60～0.90,P≤0.040,
S≤0.050
|
JAPAN |
JIS G4051
1979
|
S45C |
C0.42～0.48,Si0.15～0.35,Mn0.60～0.90,P≤0.030,
S≤0.035,Ni≤0.20,Cr≤0.20,Cu≤0.30,Ni+Cr≤0.035
|
S48C |
C0.45～0.51,Si0.15～0.35,Mn0.60～0.90,P≤0.030,
S≤0.035,Ni≤0.20,Cr≤0.20,Cu≤0.30,Ni+Cr≤0.035 |
50 |
CHINA |
GB/T4354
1994 |
50 |
C0.47～0.55,Si0.17～0.37,Mn0.50～0.80,P≤0.035,
S≤0.035,Cr≤0.25,Ni≤0.25,Cu≤0.25
|
U.S.A |
ASTM A29M
1993a |
1050 |
C0.48～0.55,Si0.15～0.35,Mn0.60～0.90,
P≤0.040,S≤0.050
|
JAPAN |
JIS G4051
1979 |
S50C |
C0.47～0.53,Si0.15～0.35,Mn0.60～0.90,P≤0.030,
S≤0.035,Cr≤0.20,Ni≤0.20,Ni+Cr≤0.35,Cu≤0.30
|
S53C |
C0.50～0.56,Si0.15～0.35,Mn0.60～0.90,P≤0.030,
S≤0.035,Cr≤0.20,Ni≤0.20,Ni+Cr≤0.35,Cu≤0.30 |
Intemational Grade |
National |
Standard.No |
Grade |
Chemical Composition |
55 |
CHINA |
GB/4354
1994 |
55 |
C0.52～0.60,Si0.17～0.37,Mn0.50～0.80,P≤0.035
S≤0.035,Cr≤0.25,Ni≤0.25,Cu≤0.25 |
U.S.A |
ASTM A29M
1993a |
1055 |
C0.50～0.60,Si0.15～0.35,MN0.60～0.90,
P≤0.040,S≤0.050 |
JAPAN |
JIS G4051
1979
|
S55C |
C0.52～0.58,Si0.15～0.35,Mn0.60～0.90,P≤0.030,
S≤0.035,Cr≤0.20,Ni≤0.20,Ni+Cr≤0.35,Cu≤0.30 |
S58C |
C0.55～0.61,Si0.15～0.35,Mn0.60～0.90,P≤0.030,
S≤0.035,Cr≤0.20,Ni≤0.20,Ni+Cr≤0.35,Cu≤0.30 |
60 |
CHINA |
GB/T4354
1994 |
60 |
C0.57～0.65,Si0.17～0.37,Mn0.50～0.80,P≤0.035,
S≤0.035,Cr≤0.25,Ni≤0.25,Cu≤0.25 |
U.S.A |
ASTM A29M
1993a |
1060 |
C0.55～0.65,Si0.15～0.35,Mn0.6～0.90,
P≤0.040,S≤0.050 |
JAPAN |
JIS G4051
1979 |
S58C |
C0.55～0.61,Si0.15～0.35,Mn0.60～0.90,P≤0.030
S≤0.035,Cr≤0.20,Ni≤0.20,Ni+Cr≤0.35,Cu≤0.30 |
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