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403 Stainless Steel Plate

403 stainless steel is a martensitic stainless steel with high chromium content and low carbon content. It is also known as UNS S40300 and is commonly used in applications requiring high strength and corrosion resistance.

Product Introduction

Product Parameters

Product Name403 Stainless Steel Plate
TypePlate
Thickness0.3mm-200mm
Length2000mm, 2438mm, 3000mm, 5800mm, 6000mm, 12000mm, etc.
Width40mm-600mm, 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc.
StandardASTM, AISI, JIS, GB, DIN, EN, etc.
SurfaceBA, 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.
CertificateISO, SGS, BV, etc.
Production TechnologyHot Rolling, Cold Rolling
Edge ProcessingEdging, Trimming

Chemical Composition

C Si Mn Cr Ni S P
≤ 0.08 ≤ 1.0 ≤ 2.0 18.0~20.0 8.0~10.5 ≤ 0.03 ≤ 0.035

Mechanical Properties

Tensile Strength Kb (MPa) Yield Strength σ0.2 (MPa) Elongation D5 (%) Hardness
≥ 520 ≥ 205 ≥ 40 ≤ 187HB / ≤ 90HRB / ≤ 200HV

Physical Performance

Density (g/cm³) Modulus of Elasticity (GPa) Coefficient of Thermal Expansion (10⁻⁶/°C) Thermal Conductivity (W/m·K) Resistivity (μΩ·cm)
8.03 193 16.9 16.2 72

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