410 stainless steel spring wire

Alloy 410 is a martensitic stainless steel that offers moderate corrosion resistance along with high strength and hardness. This versatile material, known as 410 stainless steel spring wire, can be hardened through both cold working and heat treatment, making it an ideal choice for applications requiring durability and resilience. Additionally, this stainless steel spring wire is magnetic in both annealed and tempered conditions, and it can achieve a broad range of properties through various heat treatments.

Applications
The adaptability of 410 stainless steel spring wire lends itself to a wide array of applications, including:

• Compressor components
• Chain links
• Surgical and medical equipment
• Spring pins
• Cutlery and other food processing tools

Chemical Composition (Typical)

• Carbon: Max 0.15
• Manganese: Max 1.00
• Silicon: Max 1.00
• Chromium: 11.50-13.50
• Nickel: Max 0.75
• Molybdenum: Max 0.50
• Phosphorus: Max 0.040
• Sulfur: Max 0.030
• Copper: Max 0.50
• Aluminum: Max 0.050
• Tin: Max 0.050
• Nitrogen: Max 0.080
• Iron: Balance

Physical Properties

• Density: 0.28 lbs/in³, 7.74 g/cm³
• Electrical Resistivity (68°F/20°C): 22.5 microhm-in (57.0 microhm-cm)
• Specific Heat (32-212°F/0-100°C): 0.11 BTU/lb/°F (0.46 kJ/kg•K)
• Thermal Conductivity at 212°F (100°C): 14.4 BTU/hr/ft²/ft/°F (24.9 W/m•K)
• Mean Coefficient of Thermal Expansion (32-212°F/0-100°C): 5.5 x 10⁻⁶ in/in/°F (9.9 μm/m•K)
• Modulus of Elasticity: 29.0 x 10³ KSI (200 x 10³ MPa)
• Magnetic Permeability: Magnetic
• Melting Range: 2723°F (1495°C)

Mechanical Properties at Room Temperature
Annealed Condition

• Ultimate Tensile Strength: Min 65 KSI (450 MPa)
• Yield Strength (0.2% offset): Min 30 KSI (205 MPa)
• Elongation: Min 20%
• Hardness: Max Rb 88

Tempered Condition
410 stainless steel spring wire can be cold-rolled to meet specific temper requirements based on customer or manufacturing needs. Please contact Ulbrich Wire for detailed information on available temper properties.

Additional Properties
Corrosion Resistance
For corrosion resistance, refer to recommendations by NACE (National Association of Corrosion Engineers).

Standard Wire Finishes

• Extra Clean (XC): Bright annealed or bright annealed and cold rolled for a polished finish.
• Grease (round wire only): Drawn with a heavy grease to achieve an “ultra-bright” finish suitable for decorative applications.
• Soap (round wire only): Used as a lubricant during the drawing process and left on for customer part forming operations; available for tempered products.
• Plated Finishes: Multiple plating options are available upon request.
• Special Finishes: Please contact Ulbrich Wire Sales for custom finishes and plating options.

Forms Available

• Continuous coils
• Cut lengths
• Precision cutting

Heat Treatment
The 410 stainless steel spring wire can be effectively hardened by both cold working and heat treatment, offering versatile performance across different uses.