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Chemical Composition (%) of 440C Stainless Steel Strip
C Mn Si Mo Ni N P S Cr
0..95-1.20 1.00 1.00 0.75 - - 0.040 0.030 16.00-18.00
Mechanical Properties of 440C Stainless Steel Strip
Tempering Temperature (°C) Tensile Strength (MPa) Yield Strength 0.2% Proof (MPa) Elongation (% in 50mm) Hardness Rockwell (HR C) Impact Charpy V (J)
Annealed* 758 448 14 269HB max# -
204 2030 1900 4 59 9
260 1960 1830 4 57 9
316 1860 1740 4 56 9
371 1790 1660 4 56 9
* Annealed properties are typical for Condition A of ASTM A276# Brinell Hardness is ASTM A276 specified maximum for annealed 440A, B and C.
Physical Properties of 440C Stainless Steel Strip
Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion (mm/m/°C) Thermal Conductivity(W/m.K) Specific Heat
0-100°C (J/kg.K)
Electrical Resistivity (nW.m)
0-100°C 0-200°C 0-600°C at 100°C at 500°C
7650 200 10.1 10.3 11.7 24.2 - 460 600

Stainless steels are high-alloy steels which have high corrosion resistance compared to other steels due to the presence of large amounts of chromium. Based on their crystalline structure, they are divided into three types such as ferritic, austenitic, and martensitic steels. Another group of stainless steels are precipitation-hardened steels. They are a combination of martensitic and austenitic steels.

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.

If you are interested in other Stainless Steel Strip, please click 302, 303, 304, 304L, 304H, 309, 309S, 310, 310S, 310H, 316, 316L, 317/317L, 317LMN, 321, 321H, 330, 347, 347H, 904L, 403, 405, 409, 410, 410S, 410/HT, 416, 416HT, 420, 422, 430, 440C, Duplex 2205, Duplex 2304, Duplex 2507.

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Jiangsu Zhongzhilian Steel Industry Co., Ltd., established in 2005,is a experienced manufacturer of steel products. It is located in Wuxi, one of the biggest stainless steel bases in China. The monthly production quantity is at least 10,000 Mt.Our factory covers an area of  50,000 square meters. There are five finishing rolling production lines and two hot rolling production lines as well as advanced computer-controlled automation systems. The whole set of machines and equipment are imported from Japan and Germany which guarantee the stable quality of our products. Moreover, to meet the increasingly high standard of the market, we keep introducing ...

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