304 Stainless Steel Polished Round Rod Cold Drawn Food Grade Machining Applications
304 Stainless Steel Polished Round Rod Cold Drawn Food Grade & Machining Applications
Products Specification
| Products | Stainless Steel Bar |
| Grade | 201 303 304 304L 309S 310S 316L 316Ti 317L 321 347 410 420 430 431 17-4PH 2205 2507 904L C276.etc |
| Finishing | Bright / Black |
| Diameter | 3 - 300mm |
| Length | 6m or custom cutting as request |
| Service | Cutting. Polishing, heat treatment |
| MOQ | 200 Kgs |
| Deliver time | 10 - 15 Days based on the quantity |
| Packing | wooden box, or packing as request |
| Loading Port | Shanghai Port. Ningbo Port |
| Other Shape | Round, Square, Flatness, Hexagonal , Angle, Channel |
| Company Type | Factory |
- Product Name: 304 Stainless Steel Bright Round Bar (Cold-Drawn/Polished)
- Material Grade: AISI 304 / SUS304 / UNS S30400 / 06Cr19Ni10
- Standards: ASTM A276, ASTM A484, GB/T 1220-2007, ISO 9001:2000 68
Overview
304 Stainless Steel Bright Round Bar, commonly referred to as "Guang Yuan" in industrial markets, is a premium-grade austenitic stainless steel product engineered for precision-critical applications. Featuring a seamless cold-drawn or precision-ground surface, this bar combines aesthetic appeal with unmatched mechanical integrity in corrosive or high-stress environments.
Unique Selling Points
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Ultra-Smooth Finish: Achieved through multi-stage polishing (Ra ≤0.4μm), reducing friction and wear in dynamic applications.
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Zero-Tolerance Precision: Diameter tolerance ±0.02mm for sizes ≤30mm (customizable to ±0.005mm).
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Eco-Certified: Compliant with RoHS and REACH regulations for hazardous substance control.
Technical Specifications
| Property | Value |
|---|---|
| Chemical Composition | Cr: 18–20%, Ni: 8–10.5%, C: ≤0.07%, Mn: ≤2.0%, Si: ≤1.0% |
| Mechanical Properties | |
| - Tensile Strength | 520–750 MPa |
| - Yield Strength (0.2%) | ≥210 MPa |
| - Hardness | 170–200 HV |
| Thermal Resistance | Sustains integrity up to 870°C (intermittent) / 925°C (continuous) |
Specialized Applications
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Semiconductor Manufacturing: Vacuum chamber components, wafer handling arms.
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Renewable Energy: Solar panel mounting systems, hydrogen fuel cell parts.
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Luxury Goods: High-end watch components, designer furniture hardware.
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Marine Engineering: Submersible sensor housings, desalination plant fittings.
Customization & Services
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Surface Enhancements:
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Electropolishing (ASTM B912) for micro-smooth finishes.
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PVD coating (TiN, CrN) for wear resistance.
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Special Processing:
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Cryogenic treatment (-196°C) for stabilized microstructure.
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Passivation (ASTM A967) to maximize corrosion resistance.
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Logistics:
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JIT (Just-in-Time) delivery with global warehousing (EU/US/Asia hubs).
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Anti-static packaging for sensitive electronic applications.
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Quality Assurance
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Testing Protocols:
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Eddy current testing for surface cracks.
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Spectrometer-verified chemical composition.
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Intergranular corrosion test per ASTM A262 Practice E.
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Certifications:
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ISO 14001 (Environmental Management).
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Nadcap accreditation for aerospace compliance.
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Ordering Information
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MOQ: 100 kg (standard), 1 kg (prototype/R&D orders).
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Lead Time: 10–12 days (stock), 25–30 days (custom processing).
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Payment Terms: LC, T/T
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.