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China Good Manufacture of Rolling Forging Steel Ball
China Good Manufacture of Rolling Forging Steel Ball
China Good Manufacture of Rolling Forging Steel Ball
China Good Manufacture of Rolling Forging Steel Ball
China Good Manufacture of Rolling Forging Steel Ball
China Good Manufacture of Rolling Forging Steel Ball

China Good Manufacture of Rolling Forging Steel Ball

Min.Order: 20
Product origin: Tianjin, China
Infringement complaint: complaintComplaint
US$ 645 ~ 800

Description
Diameter tolerance and roundness
Diameter30405060708090100110120125150
(mm)Tolerance±2+3,-2+4,-3+5,-4
(%)Roundness≤2≤3≤4≤5
Chemical composition
BrandC(%)Si(%)Mn(%)Cr(%)Cu(%)Mo(%)P(%)S(%)Ni(%)
45#0.42-0.500.17-0.370.5-0.800-0.250-0.250-0.300-0.0350-0.0350-0.30
50Mn0.48-0.560.17-0.370.60-1.00-0.250-0.250-0.300-0.0350-0.0350-0.30
60Mn0.57-0.650.17-0.370.70-1.00-0.250-0.250-0.300-0.0350-0.0350-0.30
65Mn0.62-0.700.17-0.370.90-1.00-0.250-0.250-0.300-0.0350-0.0350-0.30
U71MN0.65-0.760.17-0.371.10-1.400-0.250-0.250-0.300-0.0350-0.0350-0.30
40Cr0.37-0.450.17-0.370.50-0.80.80-1.10-0.250-0.300-0.0350-0.0350-0.30
42CrMo0.38-0.450.17-0.370.50-0.800.90-1.20-0.030.15-0.250-0.0350-0.0350-0.30
70Cr20.65-0.750.20-0.300.75-0.900.55-0.700-0.250-0.300-0.0300-0.0300-0.30
40Mn20.37-0.440.17-0.371.4-1.80-0.250-0.250-0.300-0.0350-0.300-0.30
B-20.70-0.800.17-0.370.70-0.800.50-0.600-0.250-0.300-0.0350-0.0350-0.30
B-30.58-0.661.2-1.60.65-0.800.70-0.900-0.250-0.300-0.0350-0.0350-0.30
B-40.60-0.651.6-1.70.7-0.80.7-0.80-0.250-0.300-0.0350-0.0350-0.30
B-60.75-0.850.2-0.400.9-1.00.85-0.950-0.250.06-0.130-0.03502-0.0350.06-0.13
B-6A0.82-0.950.20-0.400.92-1.020.80-0.950-0.250.06-0.100-0.0350-0.0350.06-0.10
B-70.35-0.400.17-0.370.7-0.80.9-1.00-0.250-0.300-0.0350-0.0350-0.30
BU0.95-1.050.17-0.370.9-1.100.40-0.600-0.150-0.050-0.0350-0.0350-0.30
Gr150.95-1.050.15-0.350.20-0.401.30-1.650-0.250-0.100-0.0270-0.0200-0.10
Technical specification

Brand
Breakage rate
Hardness
(HRC)
Impact value
(J/cm²)
Drop times
Micro structure
45#<1%≥45≥12≥8000M+C
50Mn<1%≥55≥12≥10000M+C
60Mn<1%≥55≥12≥12000M+C
65Mn<1%≥58≥12≥12000M+C
U71MN<1%≥58≥12≥12000M+C
40Cr<1%≥55≥12≥12000M+C
42CrMo<1%≥55≥12≥12000M+C
70Cr2<1%≥58≥12≥12000M+C
40Mn2<1%≥55≥12≥12000M+C
B-2<1%≥58≥12≥15000M+C
B-3<1%≥60≥12≥15000M+C
B-4<1%≥60≥12≥15000M+C
B-6<1%≥60≥12≥15000M+C
B-6A<1%≥60≥12≥15000M+C
B-7<1%≥60≥12≥15000M+C
BU<1%≥60≥12≥15000M+C
Gr15<1%≥60≥12≥15000M+C



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