Alloy Steel Ball (CG40Cr、CG08、SAE8620) is a type of ball made from stainless steel
Alloy Steel Balls
Alloy steel balls are high-performance spherical components widely used in bearings, grinding media, valves, and mechanical transmission systems. These balls are crafted from low-alloy steels containing elements like chromium, nickel, and molybdenum, offering a balance of hardness, toughness, and cost-effectiveness. Through heat treatments like quenching, tempering, or carburizing, they achieve superior mechanical properties, making them ideal for demanding industrial applications.
Alloy steel balls achieve a high hardness of HRC 25-62 through heat treatment (such as CG40Cr quenching and tempering, SAE8620 carburizing). These balls offer excellent wear resistance and are suitable for high-friction rolling bearings and abrasive media.
They possess excellent fatigue resistance, a tensile strength of 350-980 MPa, and excellent toughness, capable of withstanding high-frequency cyclic loads and impact, making them suitable for automotive transmissions.
They feature a high surface finish (Ra 0.02-0.05μm) and dimensional accuracy of G10-G200 (tolerances of ±0.0025mm to ±0.025mm), ensuring low friction and precise operation.
They are available in diameters ranging from 0.5-100mm and are customizable to meet diverse needs, from small precision balls to large industrial grinding balls.
Changzhou Risheng Steel Ball Co., Ltd. is located on the eastern shore of Taihu Lake, adjacent to Shanghai, with convenient transportation. Since its establishment in June 1995, the company has been dedicated to developing and manufacturing steel balls, integrating research and development with trade.
For many years, Risheng building on the foundation of the Wujin Metal Ball Research Institute, has been committed to researching steel ball manufacturing technology. We primarily produce shaft steel balls (AISI 52100), stainless steel balls (AISI 201/304/316/420/440/430), and carbon steel balls (AISI 1015/1045/1085) with diameters ranging from 0.8mm to 25.4mm, with precision grades up to G10, G40, and G100. We also offer custom specifications for alloy steel balls, military steel balls, copper balls, UFO balls, ceramic balls, and other metal balls.
High-strength inner packaging: Shockproof foam bags or custom plastic boxes are used to secure each alloy steel ball in place, protecting it from impacts and scratches.
Moisture-proof protection: A moisture-proofing agent is added to effectively prevent the impact of moisture on the product during transportation.
Sturdy outer packaging: Thickened corrugated cardboard boxes or wooden pallets (for large orders) are used to ensure safe long-distance transportation.
Clear labeling: Product specifications, quantity, and drop warnings are clearly marked on the outer packaging box for easy verification and safe handling.
You can expect sound service from risheng service technicians when and where you need it most. From our application insight to our confidence at the counter, risheng will work to answer your requests with expert care and promptness. We know your better than anyone.
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SpecialitySERVICES
Professionally manufactured High alloy steel ball, using precision technology to ensure excellent hardness and corrosion resistance, suitable for industrial precision applications.
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QualitySERVICES
High-quality High alloy steel ball, strictly quality inspected, with high surface finish and hardness up to HRC 50-55, provide reliable and durable performance.
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Extra Mile PRICING
High-quality service response, rapid customized production, global logistics distribution, technical consultation and after-sales support to meet diverse needs.
With an elastic modulus of 200-210 GPa and thermal expansion coefficient of 11.5-12.5×10⁻⁶/°C, they maintain stability in temperatures from -50°C to 150°C, suitable for varied operating conditions.
They offer high precision with grades G10-G200 (tolerances ±0.0025mm to ±0.025mm) and a surface roughness of Ra 0.02-0.05μm, ensuring smooth, low-friction performance in high-speed or precision applications.
AThrough heat treatments (e.g., tempering for CG40Cr, carburizing for SAE8620), they achieve hardness of HRC 25-62. This provides excellent wear resistance and fatigue strength (350-980 MPa), ensuring durability in high-friction and cyclic load environments.
They are used in rolling bearings, grinding media, valves, and mechanical transmission systems, particularly in automotive (e.g., gearboxes), industrial machinery, mining equipment, and precision instruments.
Alloy steel balls are made from low-alloy steels like CG40Cr, CG08, or SAE8620, containing elements such as chromium (0.4-1.1%), nickel (up to 0.7%), and molybdenum (up to 0.25%). These elements enhance hardness, toughness, and wear resistance.
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