Premium SS 304L/316L Black Stainless Steel Round Bars | 4mm 5mm 6mm Rods Stock | China Factory Direct
Premium SS 304L/316L Black Stainless Steel Round Bars | 4mm 5mm 6mm Rods Stock | China Factory Direct
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1. High-Performance Stainless Steel Round Bars
✓ Grade Options: ASTM-compliant 304L/316L grades (expandable to 301/2205/321 upon request)
✓ Corrosion Resistance: Salt spray tested 1000+ hours for marine/chemical environments (ASTM A276)
✓ Stock Sizes: 4mm/5mm/6mm diameters with mirror/black oxide finishes ready for export
2. Precision Customization Services
✓ Cut-to-Length: CNC laser/waterjet cutting (100mm to 6000mm ±0.5mm tolerance)
✓ Surface Processing: #4 Brushed/Hairline finish available for architectural applications
✓ Bending Capacity: Cold forming up to 90° without cracking (3D CAD file acceptance)
3. Global Supply Advantages
✓ MOQ Flexibility: Container-load (20GP) or trial order (100kg) accepted
✓ Lead Time: 15-day standard production / 7-day expedited service for urgent projects
✓ Certifications: Mill test certificates with EN 10204 3.1 traceability
4. Value-Added Processing
✓ Secondary Services:
- TIG/MIG welding with 316L filler metal
- Decoiling & straightening (≤Φ20mm)
- Custom packaging (wooden crates/vacuum sealed)
✓ Technical Support: Free metallurgical consultation for material selection
5. Industry-Specific Solutions
✓ Construction: ASTM A276-compliant structural supports
✓ Food Processing: Electropolished 316L rods with Ra≤0.8μm
✓ Automotive: Cold drawn bars for precision shaft manufacturing



