China Supplier Rolling Forging Steel Ball

Product Details
Standard: GB
Application: Loader, Construction Machinery, Metallurgical Machinery, Cement Plant, Mining Machine, Coal Yard
Material: Stainless steel
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  • China Supplier Rolling Forging Steel Ball
  • China Supplier Rolling Forging Steel Ball
  • China Supplier Rolling Forging Steel Ball
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Basic Info.

Model NO.
China supplier Rolling Forging Steel Ball
Type
Grinding Ball
Delivery
7 Days
Transport Package
Bags
Specification
Rolling Forging Steel Ball
Trademark
OKAY
Origin
China
HS Code
8482910000
Production Capacity
500mt/Day

Product Description

Diameter tolerance and roundness

Diameter 30 40 50 60 70 80 90 100 110 120 125 150
(mm)Tolerance ±2 +3,-2 +4,-3 +5,-4
(%)Roundness 2 ≤3 ≤4 ≤5
Chemical composition
Brand C(%) Si(%) Mn(%) Cr(%) Cu(%) Mo(%) P(%) S(%) Ni(%)
45# 0.42-0.50 0.17-0.37 0.5-0.80 0-0.25 0-0.25 0-0.30 0-0.035 0-0.035 0-0.30
50Mn 0.48-0.56 0.17-0.37 0.60-1.0 0-0.25 0-0.25 0-0.30 0-0.035 0-0.035 0-0.30
60Mn 0.57-0.65 0.17-0.37 0.70-1.0 0-0.25 0-0.25 0-0.30 0-0.035 0-0.035 0-0.30
65Mn 0.62-0.70 0.17-0.37 0.90-1.0 0-0.25 0-0.25 0-0.30 0-0.035 0-0.035 0-0.30
U71MN 0.65-0.76 0.17-0.37 1.10-1.40 0-0.25 0-0.25 0-0.30 0-0.035 0-0.035 0-0.30
40Cr 0.37-0.45 0.17-0.37 0.50-0.8 0.80-1.1 0-0.25 0-0.30 0-0.035 0-0.035 0-0.30
42CrMo 0.38-0.45 0.17-0.37 0.50-0.80 0.90-1.2 0-0.03 0.15-0.25 0-0.035 0-0.035 0-0.30
70Cr2 0.65-0.75 0.20-0.30 0.75-0.90 0.55-0.70 0-0.25 0-0.30 0-0.030 0-0.030 0-0.30
40Mn2 0.37-0.44 0.17-0.37 1.4-1.8 0-0.25 0-0.25 0-0.30 0-0.035 0-0.30 0-0.30
B-2 0.70-0.80 0.17-0.37 0.70-0.80 0.50-0.60 0-0.25 0-0.30 0-0.035 0-0.035 0-0.30
B-3 0.58-0.66 1.2-1.6 0.65-0.80 0.70-0.90 0-0.25 0-0.30 0-0.035 0-0.035 0-0.30
B-4 0.60-0.65 1.6-1.7 0.7-0.8 0.7-0.8 0-0.25 0-0.30 0-0.035 0-0.035 0-0.30
B-6 0.75-0.85 0.2-0.40 0.9-1.0 0.85-0.95 0-0.25 0.06-0.13 0-0.035 02-0.035 0.06-0.13
B-6A 0.82-0.95 0.20-0.40 0.92-1.02 0.80-0.95 0-0.25 0.06-0.10 0-0.035 0-0.035 0.06-0.10
B-7 0.35-0.40 0.17-0.37 0.7-0.8 0.9-1.0 0-0.25 0-0.30 0-0.035 0-0.035 0-0.30
BU 0.95-1.05 0.17-0.37 0.9-1.10 0.40-0.60 0-0.15 0-0.05 0-0.035 0-0.035 0-0.30
Gr15 0.95-1.05 0.15-0.35 0.20-0.40 1.30-1.65 0-0.25 0-0.10 0-0.027 0-0.020 0-0.10
Technical specification

Brand

Breakage rate

Hardness
(HRC)

Impact value
(J/cm²)

Drop times

Micro structure
45# <1% ≥45 ≥12 ≥8000 M+C
50Mn <1% ≥55 ≥12 ≥10000 M+C
60Mn <1% ≥55 ≥12 ≥12000 M+C
65Mn <1% ≥58 ≥12 ≥12000 M+C
U71MN <1% ≥58 ≥12 ≥12000 M+C
40Cr <1% ≥55 ≥12 ≥12000 M+C
42CrMo <1% ≥55 ≥12 ≥12000 M+C
70Cr2 <1% ≥58 ≥12 ≥12000 M+C
40Mn2 <1% ≥55 ≥12 ≥12000 M+C
B-2 <1% ≥58 ≥12 ≥15000 M+C
B-3 <1% ≥60 ≥12 ≥15000 M+C
B-4 <1% ≥60 ≥12 ≥15000 M+C
B-6 <1% ≥60 ≥12 ≥15000 M+C
B-6A <1% ≥60 ≥12 ≥15000 M+C
B-7 <1% ≥60 ≥12 ≥15000 M+C
BU <1% ≥60 ≥12 ≥15000 M+C
Gr15 <1% ≥60 ≥12 ≥15000 M+C

China Supplier Rolling Forging Steel Ball

 

 

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