AISI 440C Stainless Steel Sheets SUS440C Steel Plates

440C is a heat treatable stainless steel, designed for a combination of high wear resistance

and moderate corrosion resistance in mild environments.

approximately Rockwell C 60, Typical Applications, e.g. knives, food blades, Surgical Tools ..

Hardening

• Preheat: 1100/1250F, equalize, 1400/1450F, equalize.
• High Heat: 1850/1900F, hold 30/45 minutes at temperature.
• Quench: Air, positive pressure vacuum, interrupted oil. Cool to 150F.
• Temper: 400-800F, hold 1 hour/inch of thickness, 2 hours minimum.

Tempering between 800 and 1100F should be avoided, due to a decrease in both toughness and corrosion resistance.

Cryogenic Treating: Refrigeration treatments may improve long term dimensional stability by transforming retained austenite.

Refrigeration treatments should generally be performed after the first temper, and must be followed by a temper.

Physical Properties
Modulus of Elasticity ..............................................................30 psi x 106
Density .......................................................................................0.278 lb/in3
Thermal Conductivity ...................200F............................ 14 BTU/hr/ft/°F
Thermal Expansion
RT-200F ..................................................................5.7 X 10-6 in./in./°F
RT-600F ................................................................. 6.0 X 10-6 in./in./°F

For Details, please Contact

WUXI GUANGLU Special Steel Co., Ltd.

Stainless martensitic • precipitation hardening steel • stainless ferritic — Our answer to your needs

Tel: +86 510 81812873

Email: export@guanglusteel.com