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Professional Manufacturing 420 Stainless Steel Bar
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420 Stainless Steel Bar Description
420 stainless steel bars are classified as medium-carbon stainless steel. Typically, 420 stainless steel exhibits limited heat resistance and is preferred for use in low-temperature working environments, with a maximum operating temperature of around 650°C. To enhance its heat resistance, various heat treatment processes such as solution treatment, quenching, and annealing are commonly employed to improve the material’s grain boundary structure and grain size. It’s important to note that the heat resistance of 420 stainless steel is lower compared to other heat-resistant stainless steels, making it less suitable for high-temperature applications.
Product Parameters
| Product Name | 420 Stainless Steel Bar | |
| Type | Steel Bar | |
| Outer Diameter | Round Bar | 4mm-500mm |
| Hexagon Bar | 18mm-57mm (11/16″ to 2-3/4″) | |
| Square Bar | 18mm-47mm (11/16″ to 1-3/4″) | |
| Flat Steel | 1/2 "to 10", Thickness: 2mm-150mm, Can provide customized | |
| Length | 1-6 meters, Length can be customized | |
| Standard | ASTM, AISI, JIS, GB, DIN, EN, etc. | |
| Surface | Black, Bright Polished, Rough Turning, Mattness Surface Treatment, No. 4. BA, etc. | |
| Scope of Application | Stainless steel bars find applications in a wide array of industries, including shipbuilding, defense, automotive, textiles, paper and pulp, manufacturing, cement, heavy earthmoving equipment, and construction. | |
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 |
