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

Wuxi Guanglu special steel ( ISO 9001 certified company ) is a reliable supplier

of high performance stainless materials and specialty alloys.

With the passion for stainless alloys, we are inspired, keeping moving forward.

For over ten years, we have successfully served customers involved in the manufacturing of

cutlery, knives, scissors, medical instruments, aerospace, energy and power generation, 

chemical and oil, shipping, automotive, mold, electronics and mechanical engineering industrial sectors.

We are tailored to meet the needs of customers.
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