Your Professional 440c Stainless Steel Ball Supplier
We have two factories to produce our balls , one is Located in Henan province (cover 10000 square meters and with more than 200 sets machines), another is located in Shandong province (cover 5000 square meters and with more than 50 sets machines).
As plastic ball supply ,we also produce (304 316 316L 440C 420C) stainless steel ball, brass copper ball,(soda-lime&borosilicate) glass ball,Ceramic ball ,Tungsten Carbide Ball, sattelite steel ball,Aluminum Balls . Sizefrom 0.3mm to 100mm Grade from G5 to G1000.
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![Solid 440c Steel Ball]()
Solid 440c Steel BallSolid 440C steel ball, as the name suggests, is a spherical object made of 440C stainless steel with no cavity inside. It is usually subjected to precise processing and heat treatment to achieve specific dimensional accuracy, hardness...view more -
![High Hardness Stainless Steel Ball]()
High Hardness Stainless Steel BallHigh-hardness stainless steel balls are an industrial precision component. They combine the corrosion resistance of stainless steel with the high surface hardness and wear resistance obtained through special heat treatment. These steel...view more -
![Steel 440c Series Ball]()
Steel 440c Series BallSize: 0.3mm- 50.8mmview more
Grade : G10-G1000
Hardness: HRC60-66
Magnetic: Martensitic steel, magnetic -
![440c Steel Ball]()
440c Steel BallSize: 0.3mm- 50.8mmview more
Grade : G10-G1000
Hardness: HRC60-66
Density: 7.75
Magnetic:Martensitic steel, magnetic -
![Sus440c Steel Ball]()
Sus440c Steel BallSize: 0.3mm- 50.8mmview more
Grade: G10-G1000
Hardness: HRC60-66
Density:7.75
Magnetic: Martensitic steel, magnetic
Certification
Thanks to our extensive experience, our qualified and dedicated employees and the implementation of systematic quality management, we are able to ensure consistently high product quality and let our factory already got ISO SGS ROHS REACH certificates.
Quality Assurance
Our technical engineer has over 30 years experience . After finished to produce balls, we will take sample balls from the batch are sent for final audit to check for surface roughness, roundness, waviness, lot size variation and hardness in a sophisticated laboratory, according to specified control plans and dock audit procedures. Once all requirements are met, a test certificate is then prepared for the customer.
Customization
Plastic balls can be customized with non-standard specifications, or with hole design ,color customization and Size customization.
If you need to customize other products, please state your requirements or provide drawings. We will have professional engineers provide you with professional services to meet your requirements.
440c Stainless Steel Ball
440 Stainless Steel balls are a martenistic-type stainless steel which is used extensively in steel ball bearing applications that require hardness, dimensional stability, corrosion resistance and toughness. 440 Stainless Steel is also used for corrosion-resistant ball and check valves. 440 ball are resistant to corrosion from fresh water, steam, crude oil, gasoline, perspiration, alcohol, blood and food stuffs. Maximum resistance to corrosion and tarnishing is only achieved when 440 is fully hardened and surfaces are polished to a high luster. 440 is also magnetic.
Key Technical Specifications
Composition: Carbon 0.95–1.20%, Chromium 16–18%, Molybdenum ≤0.75%, with trace Mn, Si, P, S
Structure: Hardened martensitic stainless steel, fine-grained, through-hardened
Hardness: Rockwell C 58–66
Tensile Strength: Up to ≈ 285,000 psi
Density: ~7.75–7.8 g/cm³
Corrosion Resistance: Good resistance to fresh water, steam, mild acids, foodstuffs, and oils
Magnetic: Yes
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Material Analysis |
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Carbon |
0.95-1.20% |
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Chromium |
16.0-18.0% |
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Silicon |
1.00% |
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Manganese |
1.0% Max. |
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Phosphorus |
0.040% |
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Sulfur |
0.030% |
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Molybdenum |
0.075% |
Advantages
Exceptional Hardness of Stainless Steel Balls:
Ensures long-lasting performance in abrasive and high-load conditions.
01
High Wear Resistance:
Maintains precision under repeated rolling or contact fatigue.
02
Good Corrosion Resistance:
Suitable for various environments including mild chemical exposure.
03
Dimensional Stability:
Retains accuracy under mechanical and thermal stress.
04
Mechanical Strength:
Withstands high load-bearing applications.
05
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Physical Property |
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Corrosion Resistant |
Fair |
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Wear Resistant |
Excellent |
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Magnetism |
Yes |
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Technical Data |
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Hardness |
HRC 57 – 65 |
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Density |
7.70g/m3 |
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Young’s Modulus |
210GPa |
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Tensile Strength |
1900-2000Mpa |
Product Attributes
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Material |
440C Stainless Steel |
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Shape |
Ball |
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Shape Type |
Balls |
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Diameter |
1 1/16? |
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Diameter Tolerance |
-0.0005" to 0.0005" |
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Tolerance Rating |
Standard |
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Heat Treatment |
Hardened |
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Hardness |
HRC60-65 |
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Maximum Temperature |
800° F | 427? |
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Specifications Met |
AMS 5630 |
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Magnetic Properties |
Magnetic |
High Hardness: 440 Stainless steel balls have a high hardness, which is great for abrasion resistance and high pressure applications.
Corrosion Resistance: Possesses some corrosion resistance and is suitable for use in most general industrial environments.
Antimagnetic: 440 Stainless steel typically exhibits low magnetic properties, making it suitable for applications that are sensitive to magnetic induction, such as medical equipment.
High Temperature Resistance:
Capable of working in high temperature environments, suitable for high temperature processing and thermal applications.
High Strength:
440 stainless steel balls have high material strength and are suitable for withstanding high loads and high pressure conditions.
Low Friction:
Precision manufacturing and material properties reduce ball friction and extend service life.
Wide range of applications:
Suitable for a variety of industrial applications including bearings, valves, ball screws, etc.
FAQ
We're well-known as one of the leading 440c stainless steel ball manufacturers and suppliers in China. Our products are highly appreciated in both domestic and overseas market. Please rest assured to wholesale custom made 440c stainless steel ball from our factory.
440c Steel Ball, Rotating Precision Ball, Ball Stainless Steel
