Introduction of 420 stainless steel bearing ball
author: Changzhou Feige Steel Ball Co., Ltd
2022-08-22
AISI 420 Stainless Steel Balls: Characteristics and Applications
AISI 420 stainless steel balls are a high-performance material widely used in various industrial applications. Compared to 440C stainless steel, AISI 420 has a lower chromium content but still offers excellent corrosion and wear resistance, making it suitable for a wide range of high-demand products.
Chromium Content Comparison
AISI 420 stainless steel balls have a lower chromium content compared to 440C stainless steel. While 440C typically contains around 17-18% chromium, AISI 420 contains between 12-14% chromium. This difference affects the material's hardness and corrosion resistance, with 440C being harder and more resistant to corrosion.
Corrosion Resistance
AISI 420 stainless steel balls are generally used in products that require high corrosion resistance. They exhibit good resistance to various substances, including fresh water, water vapor, gasoline, blood, sweat, alcohol, and food. However, they do not pass the 40-hour salt spray test, indicating that they may not perform well in extremely corrosive environments.
Global Brand Equivalents
AISI 420 stainless steel balls are known by several international standards and designations:
- AISI 420
- JIS SUS 420
- JI X20 Cr13
- Z40 C13
- EN56D
- Wks 1.4034
Specifications
AISI 420 stainless steel balls are available in a wide range of sizes, from 0.5mm to 50.8mm, making them suitable for various applications.
Precision Grades
The balls are available in different precision grades, including:
- G10
- G25
- G50
- G100
- G200
- G500
- G1000
These grades indicate the level of dimensional accuracy and surface finish, with G10 being the most precise and G1000 being less precise.
Hardness
AISI 420 stainless steel balls typically have a hardness range of HRC 45-55, which provides a good balance of wear resistance and toughness.
Characteristics
- Wear Resistance: AISI 420 balls have good wear resistance, making them suitable for applications that involve frequent movement and contact.
- Corrosion Resistance: They offer moderate corrosion resistance, suitable for environments where exposure to common corrosive substances is expected.
- High Hardness: The high hardness of AISI 420 balls ensures they can withstand significant mechanical stress and wear.
Applications
AISI 420 stainless steel balls are used in a variety of applications, including:
- Special Bearings: Used in specialized machinery and equipment where high precision and durability are required.
- Wear-Resistant Bearings: Ideal for applications where the bearings are subjected to high loads and frequent motion.
- Special Pumps: Used in pumps that handle corrosive or abrasive fluids.
- Circulating Balls: Commonly used in ball screws and other linear motion systems.
- Lighters and Pens: Used in consumer products where small, precise components are needed.
Chemical Composition
- Carbon (C): Maximum 0.15%
- Chromium (Cr): 12-14%
- Silicon (Si): Maximum 1.0%
- Manganese (Mn): Maximum 1.0%
- Phosphorus (P): Maximum 0.04%
- Sulfur (S): Maximum 0.03%
Mechanical Behavior
- Tensile Strength: 275,000 psi
- Density: 7.74 g/cm³
For purchasing AISI 420 stainless steel balls, consider Changzhou Feige Steel Ball Co., Ltd. They are a well-known steel ball manufacturer in China and can provide a wide range of stainless steel balls and bearing balls. They are currently seeking global partners and offer competitive pricing. If you need AISI 420 stainless steel balls, please contact them for more information.
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