High Density 440C Stainless Steel Plate

440C stainless steel is classified as a high carbon martensitic stainless steel, renowned for its high strength, moderate corrosion resistance, and exceptional hardness and wear resistance. Following heat treatment, Grade 440C can achieve the highest strength, hardness, and wear resistance among all stainless alloys.

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440C Stainless Steel Plate Description

440C stainless steel is a high carbon martensitic stainless steel known for its exceptional cutting and wear resistance. It also exhibits excellent corrosion resistance, capable of withstanding the erosion of various chemical corrosive media. The high carbon content contributes to its outstanding hardness, and through heat treatment and quenching, it can achieve a hardness of HRC 58-60, providing exceptional cutting ability and wear resistance. Additionally, 440C boasts a high chromium content, delivering excellent corrosion resistance in most acidic and alkaline environments. As a result, 440C stainless steel is particularly well-suited for high-end manufacturing applications such as aerospace, mechanical manufacturing, electronic equipment, and medical devices.

Product Parameters

Product Name	440C Stainless Steel Plate
Type	Plate
Thickness	0.3mm-200mm
Length	2000mm, 2438mm, 3000mm, 5800mm, 6000mm, 12000mm, etc.
Width	40mm-600mm, 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc.
Standard	ASTM, AISI, JIS, GB, DIN, EN, etc.
Surface	BA, 2B, NO.1, NO.4, 4K, HL, 8K, etc.
Scope of Application	Widely used in high temperature and electrical industry, medical equipment construction, chemical, food industry, agriculture and ship parts, food and beverage packaging, Kitchen supplies, trains, airplanes, conveyor belts, vehicles, bolts, nuts, springs and screens, etc.
Certificate	ISO, SGS, BV, etc.
Production Technology	Hot Rolling, Cold Rolling
Edge Processing	Edging, Trimming

Chemical Composition

C	Si	Mn	Cr	S	P
0.95～1.20	≤1.0	≤1.0	16.0～18.0	≤ 0.03	≤ 0.04

Mechanical Properties

Tensile Strength Kb (MPa)	Yield Strength σ0.2 (MPa)	Elongation D5 (%)	Hardness
≥560	≥205	≥18	≤250HB

Physical Performance

Density(g/cm³)	Modulus of Elasticity(Gpa)	Coefficient of Thermal Expansion(10-6/°C)	Coefficient of Thermal Conductivity(W/m*K)	Resistivity(ΜΩ. cm)
7.60	200	10.1	24.2	360