904L Stainless Steel Round Bar
Our mill direct production network supplies premium-grade 904L super austenitic stainless steel round bars engineered with high copper and molybdenum additions for unmatched defense against severe sulfuric and phosphoric acid environments. We guarantee strict diameter tolerances and certified raw material tracking backed by our rapid 2-Hour Technical Quote protocol.
Tired of waiting days for price quotes while your strict project bidding deadline runs out? Terrified of low-grade rods that crack during high-torque machining, fail localized stress corrosion inspections, and ruin your career reputation? Secure your mill-verified testing records instantly.
PRODUCT DETAILS
Super Austenitic Stainless Steel Round Bar Three-Standard Cross Matrix
| American Standard (ASTM A276 / A484) | European Standard (EN 10088-3) | Japanese / Chinese Equivalent (JIS/GB) | Diameter & Condition Scope | Guaranteed PREN Value |
|---|---|---|---|---|
| Grade 316L (Standard Marine) | X2CrNiMo17-12-2 / 1.4404 | SUS316L / 02Cr17Ni12Mo2 | 6mm – 350mm / Cold Drawn Bright | PREN ≥ 23.5 |
| Grade 904L (Super Austenitic Alloy) | X1NiCrMoCu25-20-5 / 1.4539 | SUS904L / 00Cr20Ni25Mo4.5Cu Precision | 5mm – 300mm / Solution Annealed h9 | PREN ≥ 34.0 (Severe Acid Proof) |
| Duplex 2205 (Austenitic-Ferritic) | X2CrNiMoN22-5-3 / 1.4462 | SUS329J3L / 02Cr22Ni5Mo3N | 8mm – 300mm / Forged & Turned | PREN ≥ 35.0 |
Technical QA/QC Verification
• EN 10204 3.1 Material Test Certificates (MTC) & Pitting Testing: All incoming allocations are paired with verified original MTC tracking data sheets, itemizing comprehensive heat numbers, mechanical yield-stress boundaries, and chemical composition data. Fully aligned to accommodate independent third-party inspection reviews from SGS, Bureau Veritas, or Intertek.
• Sovereign Trade Security Framework: To insulate commercial engineering contractors and procurement firms from international currency changes and delivery scheduling anxieties, we execute all high-volume productions under 100% Irrevocable Letters of Credit (L/C) at sight financial protocols.
Internal Protection & Ocean Logistics
• Reinforced Rigid Cradle Palletization & Timber-Choked Bracing: Finished bundles are arranged inside thick wooden crate structures or heavy-duty iron alignment frame cradles to eliminate linear bending during terminal lifting. The total container configuration is cross-braced using heavy steel straps and internal wood block locks to handle high-seas rolling.
• Complimentary 14-21 Days Extended Destination Port Demurrage Buffer: SXY Steel Group proactively secures pre-cleared, extended 14 to 21 days of container free-time demurrage parameters on your ocean Bill of Lading, giving your customs agent an open window to handle processing without incurring costly storage fines.
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.
Free Severe-Corrosion Nesting Optimization Analysis & Chemical Component Drawing BOM Audit
Designing chemical processing shafts, heat exchanger tube frameworks, flue-gas desulfurization parts, or replying to a high-volume global alloy procurement tender? Upload your target rod lengths, precision h-tolerances, cut plans, or raw engineering Bill of Materials (BOM) drawing files below. SXY Steel Group’s engineering department will execute a complete nesting calculation to cut scrap metal losses and safeguard your production budget.
