PRODUCT DETAILS
904L Stainless Steel Bar Description
Grade 904L is a super-austenitic, low-carbon, high-alloy stainless steel. The addition of copper to this grade greatly increases its resistance to strong reducing acids, especially sulfuric acid. It is also highly resistant to chloride attack, including pitting/crevice corrosion and stress corrosion cracking.
Product Parameters
904L Stainless Steel Bar Specifications
| Item | Description |
|---|---|
| Product Name | 904L 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 used in a variety of industries such as shipbuilding, Defense, Automotive, Textiles, Paper and pulp, Manufacturing, Cement, Heavy earthmoving equipment and construction, etc. |
Chemical Composition
| Element | C | Si | Mn | Cr | Ni | Mo | P | S |
|---|---|---|---|---|---|---|---|---|
| Composition (%) | ≤0.02 | ≤1.0 | ≤2.0 | 19.0~23.0 | 23.0~28.0 | 4.0~5.0 | ≤0.035 | ≤0.045 |
Mechanical Properties
| Property | Tensile Strength (MPa) | Yield Strength σ0.2 (MPa) | Elongation D5 (%) | Hardness |
|---|---|---|---|---|
| Typical Value | ≥490 | ≥220 | ≥35 | ≤90 HRB |
Physical Performance
| Property | Density (g/cm³) | Modulus of Elasticity (GPa) | Coefficient of Thermal Expansion (10⁻⁶/°C) | Coefficient of Thermal Conductivity (W/m·K) | Resistivity (μΩ·cm) |
|---|---|---|---|---|---|
| Typical Value | 8.0 | 195 | 15.5 | 12.0 | 94 |
Packing and shipping
Our company has passed ISO9001 quality management system certification, Our Mill product with CE/EN10204 / ASTM/Classification society certificate/CASO/BIS etc certificate.All the customers give good appreciation to our products.We are glad to be your good partner.

Application Areas
Steel is widely used in steel structure workshops, bridge frames, main structures of high-rise buildings, and infrastructure construction (such as highways, oil and gas pipelines). Its high strength properties ensure load-bearing stability and seismic performance. In ship manufacturing, steel is used to build hull structures, decks, and internal components. Hot-rolled coils rely on their load-bearing capacity to adapt to harsh environments.

Factory workshop
With a commitment to excellence, innovation, and sustainability, the company has established itself as a trusted partner in the international steel industry.After nearly two decades of relentless endeavour, our client base now spans over 110 countries and regions across Europe, the Middle East, South America, and Southeast Asia.











