The wire for steel-wire and steel wrings line  
   
 
Intemational Grade
National
Standard No
Grade
Chemical Composition
65
CHINA
GB/T4354
1994
65
C0.62~0.70,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
1065
C0.60~0.70,Si0.15~0.35,Mn0.60~0.90,
P≤0.040,S≤0.050
JAPAN
JIS G3506
1998
SWRH 67A
C0.64~0.71,Si0.15~0.35,Mn0.30~0.60
P≤0.030,S≤0.030
SWRH 67B
C0.64~0.71,Si0.15~0.35,Mn0.60~0.90
P≤0.030,S≤0.030
70
CHINA
GB/T4354
1994
70

C0.67~0.75,Si0.17~0.37,Mn0.50~0.80,P≤0.035
S≤0.035,Ni≤0.30,Cr≤0.25,Cu≤0.25

U.S.A
ASTMA29M
1993a
1070
C0.65~0.75,Si0.15~0.35.Mn0.60~0.90,
P≤0.040,S≤0.050
JAPAN
JIS G3506
1980
SWRH72A
C0.69~0.76,Si0.15~0.35,Mn0.30~0.60,
P≤0.030,S≤0.030
SWRH72B
C0.69~0.76,Si0.15~0.35,Mn0.30~0.90,
P≤0.030,S≤0.030
77MA
CHINA
GB/T146-1998
77MnA
C0.75~0.80,Si0.12~0.32,Mn0.60~0.90,
P≤0.030,S≤0.030,Cu≤0.20
JAPAN
JISG3506-1996
SWRH77B
C0.74~0.81,Si0.15~0.35,Mn0.60~0.90,
P≤0.040,S≤0.030