| BEARING MATERIAL | ||||||||||
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| MaterialStandard | Steel No. | C | Cr | Si | Mn | S | P | Mo | Ni | Other | 
| GB | GCr15 | 0.95~1.05 | 1.30~1.65 | 0.15~0.35 | 0.20~0.40 | ≤0.020 | ≤0.027 | 
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| SAE | 52100 | 0.98~1.10 | 1.30~1.60 | 0.15~0.30 | 0.25~0.45 | ≤0.025 | ≤0.025 | 
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 | GCr15SiMn | 0.95~1.05 | 1.40~1.65 | 0.45~0.75 | 0.95~1.25 | ≤0.025 | ≤0.025 | 
 | ≤0.30 | Cu≤0.25 | 
| DIN | 100CrMn6 | 0.93~1.05 | 1.40~1.65 | 0.45~0.75 | 1.00~1.25 | ≤0.025 | ≤0.015 | 
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 | Cu≤0.30 | 
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 | 9Cr18 | 0.90~1.00 | 17.0~19.0 | ≤0.80 | ≤0.80 | ≤0.030 | ≤0.035 | 
 | ≤0.30 | Cu≤0.25 | 
| AISI | 440B | 0.75~0.95 | 16.0~18.0 | ≤1.00 | ≤1.00 | ≤0.030 | ≤0.040 | ≤0.75 | 
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 | 9Cr18Mo | 0.95~1.10 | 16.0~18.0 | ≤0.08 | ≤0.80 | ≤0.030 | ≤0.035 | 0.40~0.70 | ≤0.30 | Cu≤0.25 | 
| AISI | 440C | 0.95~1.10 | 1.60~1.80 | ≤1.00 | ≤1.00 | ≤0.025 | ≤0.025 | 0.40~0.65 | ≤0.75 | Cu≤0.50 | 
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 | 1Cr18Ni9Ti | ≤0.12 | 17.0~19.0 | ≤1.00 | ≤2.00 | ≤0.030 | ≤0.035 | 
 | 8.00~11.0 | Cu≤0.25 | 
| DIN | X10CrNiTi18-9 | 
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 | 08 | 0.05~0.11 | 0.10 | 0.17~0.37 | 0.35~0.65 | ≤0.035 | ≤0.035 | 
 | 0.30 | Cu≤0.25 | 
| SAE | 1008 | 
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 | 20 | 0.17~0.23 | ≤0.25 | 0.17~0.37 | 0.35~0.65 | ≤0.035 | ≤0.035 | 
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| SAE | 1020 | 0.18~0.23 | 
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 | 0.30~0.60 | ≤0.050 | ≤0.040 | 
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 | 45 | 0.42~0.50 | ≤0.25 | 0.17~0.37 | 0.50~0.80 | ≤0.035 | ≤0.035 | 
 | 0.30 | Cu≤0.25 | 
| SAE | 1045 | 
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 | 20Cr | 0.18~0.24 | 0.70~1.00 | 0.17~0.37 | 
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| SAE | 5120 | 0.17~0.23 | 0.60~1.00 | 0.15~0.35 | 0.60~1.00 | ≤0.025 | ≤0.025 | 
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 | 20Cr2Ni4A | 0.17~0.23 | 1.25~1.65 | 0.17~0.37 | 0.30~0.60 | 
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 | 3.25~3.65 | 
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| AISI | 3320 | 
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 | Cr4Mo4V | 0.75~0.85 | 3.75~4.25 | 0.35 | 0.35 | 0.30 | 0.35 | 4.00~4.50 | 
 | V<0.90~1.10 | 
| AISI | M50 | 0.77~0.85 | 3.75~4.25 | ≤0.25 | ≤0.35 | ≤0.015 | ≤0.015 | 4.00~4.50 | ≤0.15 | V<0.90~1.10 |