304 Stainless Steel Bright Shafting Bar Annealed Centerless Ground

• 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

Product Introduction

The 304 Stainless Steel Bright Round Bar (commonly referred to as "Guang Yuan" in industrial markets) is a premium-grade austenitic stainless steel product renowned for its corrosion resistance, aesthetic appeal, and versatility. Precision-finished through cold drawing or centerless grinding, this bar features a smooth, mirror-like surface ideal for applications demanding dimensional accuracy and hygiene. Its balanced composition of chromium and nickel ensures robust performance in harsh environments, from chemical processing to architectural design.

Key Specifications

Chemical Composition

Mechanical Properties

• Tensile Strength: 515–720 MPa

• Yield Strength (0.2% offset): ≥205 MPa

• Elongation: ≥40%

• Hardness: ≤187 HB (Brinell)

• Density: 8.0 g/cm³

Physical Properties

• Melting Point: 1400–1450°C

• Thermal Conductivity: 16.2 W/m·K (at 100°C)

• Electrical Resistivity: 0.72 μΩ·m

Standards & Certifications

• Material Standards:

  • ASTM A276 (Stainless Steel Bars)

  • EN 10088-3 (EU Standard)

  • JIS G4303 (Japanese Industrial Standard)

• Surface Finish: ASTM A484 (Polished/Cold-Drawn)

• Certifications:

  • ISO 9001:2015 (Quality Management)

  • RoHS/REACH Compliance

  • Mill Test Certificates (EN 10204 3.1)

Applications

• Industrial: Shafts, valves, fasteners, pump components.

• Architectural: Decorative railings, elevator trim, structural fittings.

• Food & Beverage: Processing equipment, conveyor systems, hygienic fixtures.

• Medical: Surgical instruments, sterilization trays.

• Automotive: Exhaust systems, sensor housings.

Other Stainless Steel Bar Products

For specialized needs, consider these alternatives:

1. 316 Stainless Steel Bright Bar

   • Features: Enhanced corrosion resistance (Mo addition), ideal for marine/chemical environments.

   • Grades: AISI 316, UNS S31600.

2. 430 Stainless Steel Bar

   • Features: Ferritic grade with high chromium (16–18%), cost-effective for mild corrosive conditions.

   • Applications: Automotive trim, appliances.

3. 17-4 PH Precipitation-Hardening Bar

   • Features: High strength (up to 1310 MPa), heat-treatable for aerospace/defense uses.

4. 2205 Duplex Stainless Steel Bar

   • Features: Dual-phase structure (austenitic + ferritic), superior stress corrosion resistance.

Additional Services

• Custom Machining: Cutting, threading, polishing, or CNC processing.

• Surface Treatments: Passivation, electropolishing, PVD coating.

• Packaging: PVC-wrapped bundles, rust-proof paper, or export-grade crates.

Ordering Information

• MOQ: 50 kg (standard sizes), negotiable for custom orders.

• Lead Time: 7–14 days (stock), 3–5 weeks (custom processing).

• Global Shipping: FOB/CIF terms available.