440C Stainless Steel Sheet/Plate

Grade: 440C
Surface:  No.4/No.6/No.8 mirror
Standard: ASTM A240
Thickness: 0.076mm-28mm
Origin: POSCO, TISCO,BAOSTEEL

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440C Stainless Steel Sheet/Plate

Grade 440C stainless steel is a high carbon martensitic stainless steel. It has high strength, moderate corrosion resistance, and good hardness and wear resistance. Grade 440C is capable of attaining, after heat treatment, the highest strength, hardness and wear resistance of all the stainless alloys. Its very high carbon content is responsible for these characteristics, which make 440C particularly suited to such applications as ball bearings and valve parts.

Chemical Composition
(Maximum, unless range is indicated)

Grade Ni Mo Cu Mn C Cr P S Si
440C 0.75 0.75 0.50 1.00 0.95 – 1.2 16 – 18 0.04 0.03 1.00

Physical Properties

Density kg/mᶟ Thermal Conductivity at 212°F (100°C) Electrical Resistivity Elastic Modulus (Gpa)
7650 24.2 600 200

Mechanical Properties

Yield Strength 0.2% Proof (Mpa) Tensile Strength (Mpa) Elongation (% in 50mm) Hardness (HB)
448 75 14 269 max

Value-added Service

Every industry has its unique set of stainless steel coil specifications and needs. We offer many Value Added Services to meet your needs from cut-to-length to hard-to-find materials and special requirements. With over 13 years in the business, our team is professional at finding out solutions to fit your needs.

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Let Qukin Steel Be Your Partner!

Stainless Steel Coil/Sheet Beveling We can cut and bevel the edges of stainless steel coil/sheet to prepare forwelding or other processing.
Stainless SteelCoil/Sheet Grinding We can provide grinding service of stainless steel steel coil/sheetin order to satisfy customers’ flatness requests.
Stainless SteelCoil/Sheet Polishing Our stainless steel steel coil/sheetcan be polished to a #4 polish, #6 polish,#7polish, or a #8 mirror finish. It can also be polished on one side or two sides.
Stainless SteelCoil/Sheet Perforating Our perforated stainless steel steel coil/sheetcomes in a selection of holeshapes, pattern sizes, gauges and grades. It has endless applications such asenclosures,partitions, sign panels, guards, screens, and more.
Stainless SteelCoil/Sheet Laser Cutting Our technologically advanced laser machines provide us with an efficient, high speed and cost effective form of profiling steel coil/sheetwhich ensures a superior clean cut and oxide free finish.
Stainless SteelCoil/Sheet Water Jet Cutting We offer stainless steel steel coil/sheetdynamic Waterjet cutting in order to process complex part geometry.
Stainless SteelCoil/Sheet Embossing Our stainless steel embossed patterns including basket embossed pattern,diamond pattern or square pattern.
Stainless Steel Coil/Sheetdecorating We offer various decorative stainless steel steel coil/sheet, such as stainless steel mirror steel coil/sheet, stainless steel hairline steel coil/sheet,color coated stainless steel coil/sheet, etched stainless steel steel coil/sheet, vibration finish stainless steel steel coil/sheet, bead blast finish stainless steel steel coil/sheet, stain brush finish stainless steel steel coil/sheet, and more.
Stainless SteelCoil/Sheet Heatreating & Annealing We can heatreat 410 and 17-4PH stainless steel plate to change mechanical properties. In some cases, secondary annealing 300 series might be required depending on the application.

Logistics&Packing

Our stainless steel products are packed and labeled according to the regulations and customers requests.

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