440C Stainless Steel Ball
Production Range：
● 0.5MM-50.8MM
Production Grade:
● G5-G200
Applications：
● Medical devices ● Automotive Components
● Aerospace Components ● Stainless Steel Bearing
● Valves
Product Details
440C stainless steel is a high-quality, high-carbon martensitic stainless steel that, after heat treatment, achieves the highest levels of strength, hardness, and wear resistance among all stainless steel alloys, with a hardness rating of HRC 58 to 64.
Additionally, 440C stainless steel exhibits excellent high-temperature dimensional stability.
EDE Company produces 440C stainless steel balls, which are widely used in fields such as medical equipment, corrosion-resistant high-temperature bearings, and automotive parts due to their superior performance.
| Approximate material | |||||||||
| Material | Number Designtion | Chemical Composition （%） | |||||||
| C | Si | Mn | P | S | Cr | Ni | Mo | ||
| 440C X105CrMo 102Cr17Mo | 1.4125 | 0.95 - 1.2 | 0 - 1 | 0 - 1 | 0 - 0.04 | 0 - 0.03 | 16 - 18 | / | 0 - 0.75 |
| DIN 5401-2002 | ||||||||
| Dimensional and formt tolerance and surface roughness | ||||||||
| Grade | Nominal Size | Limit deviations | tDws | ∆RSw(≤) | Ra(≤) | VDwL(≤) | IG | Preferred gauges values |
| VDws (≤) | ||||||||
| (mm) | (μm) | (μm) | (μm) | (μm) | (μm) | (μm) | (μm) | |
| G 3 | 0 ~ 12.7 | ± 5.32 | 0.08 | 0.08 | 0.01 | 0.13 | 0.5 | -5 ~ +5 |
| G 5 | 0 ~ 12.7 | ± 5.63 | 0.13 | 0.13 | 0.014 | 0.25 | 1 | -5 ~ +5 |
| G 10 | 0 ~ 25.4 | ± 9.75 | 0.25 | 0.25 | 0.02 | 0.5 | 1 | -9 ~ +9 |
| G 16 | 0 ~ 25.4 | ± 11.4 | 0.4 | 0.4 | 0.025 | 0.8 | 2 | -10 ~ +10 |
| G 20 | 0 ~ 38.1 | ± 11.5 | 0.5 | 0.5 | 0.032 | 1 | 2 | -10 ~ +10 |
| G 28 | 0 ~ 50.8 | ± 13.7 | 0.7 | 0.7 | 0.05 | 1.4 | 2 | -12 ~ +12 |
| G 40 | 0 ~ 100 | ± 19 | 1 | 1 | 0.06 | 2 | 4 | -16 ~ +16 |
| G 80 | 0 ~ 100 | ± 14 | 2 | 2 | 0.1 | * | 4 | -12 ~ +12 |
| G 100 | 0 ~ 150 | ± 47.5 | 2.5 | 2.5 | 0.1 | 5 | 10 | -40 ~ +40 |
| G 200 | 0 ~ 150 | ± 72.5 | 5 | 5 | 0.15 | 10 | 10 | -60 ~ +60 |
| G 300 | 0 ~ 25.4 | ± 70 | 10 | 10 | 0.2 | * | 20 | -60 ~ +60 |
| G300 | 25.4 ~ 50.8 | ± 105 | 15 | 15 | 0.2 | * | 30 | -90 ~ +90 |
| G 300 | 50.8 ~ 75 | ± 140 | 20 | 20 | 0.2 | * | 40 | -120 ~ +120 |
| G 500 | 0 ~ 25.4 | ± 75 | 25 | 25 | * | * | 50 | -50 ~ +50 |
| G 500 | 25.4 ~ 50.8 | ± 112.5 | 25 | 25 | * | * | 75 | -75 ~ +75 |
| G 500 | 50.8 ~ 75 | ± 150 | 25 | 25 | * | * | 100 | -100 ~ +100 |
| G 500 | 75 ~ 100 | ± 187.5 | 32 | 32 | * | * | 125 | -125 ~ +125 |
| G 500 | 100 ~ 125 | ± 225 | 38 | 38 | * | * | 150 | -150 ~ +150 |
| G 500 | 125 ~ 150 | ± 262.5 | 44 | 44 | * | * | 175 | -175 ~ +175 |
| G 600 | all | ± 200 | * | * | * | * | * | * |
| G 700 | all | ± 1000 | * | * | * | * | * | * |
| ABMA Std. 10A - 2001 | |||||
| Grade | VDws(≤) | ∆RSw(≤) | Ra(≤) | VDwL(≤) | (μm) |
| (μm) | (μm) | (μm) | (μm) | ||
| G3A | 0.08 | 0.08 | 0.012 | 0.13 | * |
| G5A | 0.13 | 0.13 | 0.02 | 0.25 | * |
| G10A | 0.25 | 0.25 | 0.025 | 0.5 | * |
| G16A | 0.4 | 0.4 | 0.025 | 0.8 | * |
| G24A | 0.6 | 0.6 | 0.05 | 1.2 | * |
| G48A | 1.2 | 1.2 | 0.08 | 2.4 | * |
| G100A | 2.5 | 2.5 | 0.125 | 5 | ±12.5 |
| G200A | 5 | 5 | 0.2 | 10 | ±25 |
| G500A | 13 | 13 | * | 25 | ±50 |
| G1000A | 25 | 25 | * | 50 | ±125 |
| G2000A | 50 | 50 | * | 100 | ±250 |
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