Stainless Steel Bearing Material Introduction

Stainless Steel Material Classification

1. SUS420 (3Cr13)

420 stainless steel is a martensitic stainless steel with certain wear resistance and corrosion resistance, and high hardness. It is suitable for all kinds of bearings, precision machinery, electrical, equipment, instruments, meters, transportation tools, household appliances, etc. It is mostly used to manufacture parts that are resistant to atmospheric, water vapor, water and oxidizing acid corrosion. It is widely used in the bearing field.

2. SUS440 (9Cr18), SUS440C (9Cr18Mo)

Martensitic stainless steel has higher carbon content than cr13 steel, so its strength and hardness are higher than cr13 steel, and other properties are similar to cr13, but its weldability is poor, corrosion resistance and toughness are strong, and the speed is higher in miniature bearings and bearings The field is particularly widely used.

3. SUS630 stainless steel

630 stainless steel is a martensitic precipitation hardening stainless steel. 630 stainless steel has good attenuation performance, strong resistance to corrosion fatigue and water droplets. The corrosion resistance is equivalent to 304 stainless steel, and the hardness is better than 304 stainless steel. It is suitable for food industry, offshore platform, paper industry, medical equipment, washing equipment, environmental cleaning machinery, chemical machinery, and it is widely used in industries with high requirements for anti-prevention.

4. SUS304 (06Cr19Ni10/0Cr18Ni9)

304 austenitic stainless steel has good corrosion resistance, heat resistance, low temperature strength and mechanical properties, good hot workability such as stamping and bending, and no thermal physical hardening. Non-magnetic 304 (weak magnetic after processing) stainless steel has good Heat resistance, and is widely used in the production of corrosion-resistant and formability equipment and parts. At present, 304 stainless steel bearings are widely used in food processing machinery, chemical machinery, marine equipment, medical equipment, water washing equipment, environmental cleaning machinery, and are widely used in industries with high rust prevention.

5.SUS316 (0Cr17Ni12Mo2)

316 austenitic stainless steel has plasticity, toughness, cold deformability, good welding process performance, and good appearance gloss of cold rolled products; due to the addition of Mo (2-3%), the corrosion resistance and especially the pitting corrosion resistance are particularly excellent. Bearings that meet the requirements of strong acid and alkali environments.

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