Material Introduction
Stainless steel material
SUS 420 (3Cr13)
420 stainless steel is a martensitic stainless steel, which has some characteristics of wear resistance, corrosion resistance and high hardness. It is suitable for all kinds of bearings, precision machinery, electrical, equipment, instruments, instruments, transportation tools, household appliances and so on. It is widely used in the field of bearings for the manufacture of components resistant to atmospheric, steam, water and oxidative acid corrosion.
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. Other properties are similar to Cr13 steel, but its weldability is poor, corrosion resistance and toughness are strong. It is widely used in the field of micro-bearing and bearing with higher rotational speed.
SUS630 Stainless Steel
630 stainless steel is martensitic precipitation hardening stainless steel. 630 stainless steel has good attenuation, corrosion fatigue and water drop resistance. Corrosion resistance is equal to 304 stainless steel, hardness is better than 304 stainless steel. It is suitable for food industry, offshore platform, paper industry, medical equipment, washing equipment, environmental protection cleaning machinery, chemical machinery, and widely used in industries requiring higher protection.
SUS304 (06Cr19Ni10/0Cr18Ni9)
304 Austenitic stainless steel has good corrosion resistance, heat resistance, low temperature strength and mechanical properties, good hot working performance such as stamping and bending, no thermal hardening phenomenon, non-magnetic 304 (weak magnetic after processing) stainless steel with good heat resistance, and is widely used in the production of corrosion resistance and formability of equipment and components. At present, 304 stainless steel bearings are widely used in food processing machinery, chemical machinery, marine equipment, medical equipment, water washing equipment, environmental protection cleaning machinery, and are widely used in anti-rust industries.
SUS316 (0Cr17Ni12Mo2)
316 austenitic stainless steel has good plasticity, toughness, cold denaturation, welding process performance and appearance gloss of cold-rolled products; due to the addition of Mo (2-3%), corrosion resistance and pitting corrosion resistance are particularly excellent, which are used for bearings required for strong acid-alkali environment.
