440C Stainless Steel Bar Description
431 stainless steel round bar is a versatile and highly durable material known for its excellent corrosion resistance and superior strength. Composed primarily of chromium (16-18%), it offers a good balance of hardness and toughness, making it ideal for applications in harsh environments. Commonly used in industries such as aerospace, automotive, and marine, the 431 stainless steel round bar is perfect for manufacturing parts that require high mechanical properties, such as shafts, bolts, and valves. Its ability to withstand heat and resist wear also makes it a preferred choice for high-stress components. This material is easily machinable and can be hardened by heat treatment, enhancing its overall performance in demanding conditions.
Product Parameters
| Product Name | 431 Stainless Steel Round 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 are used in a variety of industries such as shipbuilding,
Defense, Automotive, Textiles, Paper and pulp, Manufacturing, Cement, Heavy earthmoving equipment and construction, etc. |
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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 |
