Xi'an machinery & engineering import & export co.,ltd.
China Chrome Steel Bearing Balls & High Precision Bearing Balls Supplier The best precision makes your bearing roll more smoothly. High quality, Best service, Reasonable price.
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10.318mm(13/32"), Solid stainless steel metal ball for bearing, G100
Introduction
Stainless steel balls are usually produced through a forging process. At present, commonly used stainless steel balls are made of 201, 302, 304, 316, 316L, 420 and 440C.
Definition: Steel with a chromium content of more than 12% and resistance to chemical substances.
Principle: Stainless steel does not rust, but it is not easy to rust.
The principle is that by adding chromium elements, a dense chromium oxide layer is formed on the surface of the steel, which can effectively prevent the re-contact between the steel and the air, so that the oxygen cannot enter the steel. thereby achieve the effect of preventing steel from rusting.
We mainly export stainless steel balls (201, 304, 316, 420, 420C, 440C, 430), and also produce chrome steel balls (AISI52100, 100CR6, GCR15), carbon steel balls (1015, 1010, 1045, 1085) and various other material of steel ball.
Stainless steel ball performance
The hardness of the 440/440C stainless steel ball reaches 56-58 degrees, with magnetism, good corrosion resistance, wear resistance and toughness. It is mainly used in industries that require high precision and rust resistance, such as bearings, stamping/hydraulic parts, valves, motors, high-precision instruments, seals, refrigeration equipment, aerospace high-precision mechanical parts, and petroleum. Specification: Φ1.0—Φ30mm, 440C stainless steel ball.
Stainless steel ball 304
| 304 Chemical composition | |
| C | 0.08% max. |
| Si | 1.00% max. |
| Mn | 2.00% max. |
| P | 0.045% max. |
| S | 0.030% max. |
| Cr | 17.00 to 19.00% |
| Molybdenum | ----- |
| Ni | 8.00 -- 10.00% |
| 304 Physical properties | |
| Tensile strength | 100,000 to 180,000 psi |
| Yield Strength | 50,000 to 150,000 psi |
| Elongation | 55 to 60% |
| Elastic Modulus | 29,000,000 psi |
| Density | .286 lbs/cubic inch |
| Stainless steel ball | Grade | Property | Application |
| 440C(9Cr18Mo) | G10-G500 | Martensitic steel, high precision, hardness of 56-58 degrees, magnetic, good corrosion resistance, strong rust resistance and wear resistance | Bearings, stamping/hydraulic parts, valves, aerospace, seals, refrigeration equipment, high-precision instruments, etc. |
| 420(3Cr13) | G10-G500 | Martensitic steel, commonly known as stainless iron, has a hardness of 51-53 degrees, is magnetic, has good corrosion resistance and toughness | All kinds of precision machinery, bearings, electrical equipment, household appliances, auto parts, etc. |
| 304(Ocr19Ni9) | G100-G1000 | Austenitic steel, hardness ≤28 degrees, non-magnetic, strong rust resistance, good corrosion resistance | Valves, perfume bottles, nail polish, baby bottles, auto parts, air conditioners and other household appliances |
| 316L(Ocr19Ni12Mo2) | G100-G1000 | Austenitic steel, most suitable for industries with high anti-corrosion requirements, hardness ≤28 degrees, non-magnetic, strong rust resistance | Valves, perfume bottles, medical equipment, nail polish, baby bottles, air conditioners and other household appliances |
| 201 | G100-G1000 | Austenitic steel, hardness ≤28 degrees, non-magnetic after demagnetization, not easy to rust when placed in water | Hardware accessories, household appliances, lamps, switches, die-casting parts, plastic products, etc. |