
420 Stainless Steel Plate
420 stainless steel is a high-carbon stainless steel, mainly composed of chromium, carbon and molybdenum, with good corrosion resistance and strength.

PRODUCT DESCRIPTION
420 stainless steel is a medium carbon (0.15% to 0.40%) chromium stainless steel. Under normal circumstances, 420 stainless steel has limited heat resistance and is more suitable for low-temperature working environments. Its maximum operating temperature is usually 650°C. To improve the heat resistance of 420 stainless steel, heat treatment processes, such as solution treatment and quenching and annealing, can be performed. These treatments can improve the material’s grain boundary structure and grain size, thereby improving its heat resistance. The heat resistance of 420 stainless steel is lower than other heat-resistant stainless steels and is suitable for use in low temperature environments. In high temperature applications, it is recommended to choose stainless steel materials with better heat resistance.
PRODUCT DETAILS
Product Information
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 |
≤ 0.15 | ≤1.0 | ≤1.0 | 12.0~14.0 | ≤ 0.03 | ≤ 0.04 |
Mechanical Properties
Tensile Strength Kb (MPa) | Yield Strength σ0.2 (MPa) | Elongation D5 (%) | Hardness |
≥634 | ≥440 | ≥20 | Annealing≤ 223HB; quenching and tempering ≥ 192HB |
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) |
7.74 | 200 | 10.2 | 24.9 | 55 |
PRODUCT DISPLAY



PRODUCT QUALITY
We have complete testing equipment and strong technical force. The company has advanced production equipment, equipped with key equipment such as pressing machines, large heat treatment furnaces, beveling machines, sawing machines, large sandblasting machines, and various testing instruments.

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APPLICATION
Our main manufactures are stainless steel, galvanized steel, carbon steel and etc. That apply to engineering, coal mine, textile, electric power, boiler, machinery, military industry and other fields.
Petroleum
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