305 stainless steel bright wire

305 stainless steel bright wire belongs to the austenitic chromium-nickel stainless steel family. This specialized stainless steel bright wire features:

• Low work hardening rate
• Non-magnetic properties in annealed condition
• Slower magnetic permeability increase with cold working
• Exceptional suitability for electronic components
• Superior performance in coining applications

Chemical Composition

The 305 stainless steel bright wire contains precise proportions of:

• Carbon: 0.12 max
• Chromium: 17.00 – 19.00%
• Nickel: 10.00 – 13.00%
• Manganese: 2.00 max
• Silicon: 1.00 max
• Molybdenum: 0.75 max
• Other elements: Phosphorus, Sulfur, Copper, and Iron (Balance)

Physical Properties

Key characteristics of 305 stainless steel bright wire include:

• Density: 7.99 g/cm³
• Melting Range: 1399-1454°C
• Electrical Resistivity: 74.0 microhm-cm at 20°C
• Thermal Conductivity:
  • 16.2 W/m•K at 100°C
  • 21.4 W/m•K at 500°C

Mechanical Properties

Annealed Condition

• Ultimate Tensile Strength: 515 MPa min
• Yield Strength: 205 MPa min
• Elongation: 40% min
• Hardness: B92 max

Work-Hardened States

305 stainless steel bright wire is available in various tempers:

1/4 Hard

• Ultimate Tensile Strength: 827-930 MPa
• Yield Strength: 589-896 MPa
• Elongation: 15% nominal
• Hardness: Rc 25-30

Full Hard

• Ultimate Tensile Strength: 1275-1551 MPa
• Yield Strength: 1172-1447 MPa
• Hardness: Rc 40-45

Primary Applications

This versatile stainless steel bright wire excels in:

• Medical device manufacturing
• Electronic component production
• Deep drawing applications
• Precision coining operations
• Custom temper requirements

Each application benefits from the wire's unique combination of mechanical properties and non-magnetic characteristics.