High Quality 439 Stainless Steel Bar
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439 Stainless Steel Bar Description
439 stainless steel bars are distinguished by their high chromium content, which effectively prevents rust and corrosion in both wet and dry conditions, making them well-suited for environments with moisture or chemical exposure. Furthermore, their excellent formability and weldability allow for easy shaping into various forms or sizes without compromising structural integrity, rendering them suitable for a wide range of manufacturing processes. However, it’s important to note that 439 stainless steel bars are susceptible to corrosion in specific environments. Exposure to chloride-containing substances, such as saltwater or harsh cleaners, can lead to pitting and rust on the surface. Additionally, while 439 stainless steel bars are robust, they may not exhibit the same level of strength and durability as other stainless steel bars, potentially impacting performance under heavy loads or stressful conditions.
Product Parameters
| Product Name | 439 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 are utilized across a diverse spectrum 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 |
| ≤ 0.03 | ≤1.0 | ≤1.0 | 17.0~19.0 | ≤ 0.03 | ≤ 0.04 |
Mechanical Properties
| Tensile Strength Kb (MPa) | Yield Strength σ0.2 (MPa) | Elongation D5 (%) | Hardness |
| ≥415 | ≥205 | ≥ 22 | ≤ 89HRB |
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 | 210H | 10.2 | 24.2 | 63 |




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