430 Stainless Steel UNS S4300 round wire

430 Alloy Description

Alloy 430 is a widely used ferritic stainless with good corrosion and oxidation and heat resistance up to 1500°F (816°C). It is non-hardenable by heat treatment, is magnetic and exhibits good ductility. It can be readily formed into many desired shapes.

Applications

Interior architectural screens
Cooking utensils
Food processing
Interior trim applications

Physical Properties

Density, 0.28 lbs/in³, 7.74 g/cm³

Electrical Resistivity: microhm-in (microhm-cm):
68°F (20°C): 23.68 (60)

Specific Heat: BTU/lb/°F (kJ/kg•K):
32-212°F (0-100°C): 0.11 (0.46)

Thermal Conductivity: BTU/hr/ft²/ft/°F (W/m•K)
At 212°F (100°C): 15.1 (26.1)
At 932°F (500°C): 15.2 (26.3)

Mean Coefficient of Thermal Expansion: in/in/°F (μm/m•K):
32-212°F (0-100°C): 5.8 x 10-6(10.4)
32-1000°F (0-538°C): 6.3 x 10-6(11.4)

Modulus of Elasticity: KSI (MPa)
29.0 x 10³ (200 x 10³) in tension

Magnetic Permeability: Magnetic

Melting Range: °F (°C) 2600-2750 (1427-1510)

Chemistry Typical

Carbon: 0.12 max
Manganese: 1.00 max
Silicon: 1.00 max
Chromium: 16.00-18.00
Nickel: 0.50 max
Molybdenum: 0.50 max
Phosphorus: 0.040 max
Sulfur: 0.030 max
Copper: 0.50 max
Iron: Balance

Mechanical Properties at Room Temperature

Properties: Annealed
Ultimate Tensile Strength: 65 KSI min (450 MPa min)
Yield Strength (0.2% offset): 30 KSI min (205 MPa min)
Elongation: 22% min
Hardness: Rb 89 max

Properties: Tempered
Alloy 430 can be cold rolled to achieve the temper properties required by specific customers and/or manufacturing requirements. Contact Ulbrich Wire for details.

Additional Properties

Corrosion Resistance
Refer to NACE (National Association of Corrosion Engineers) for recommendations.

Standard Wire Finishes
Extra Clean: Extra clean is also referred to as “bright annealed” or “bright annealed and cold rolled”
Grease (round wire only): Drawn in a heavy grease produces an “Ultra bright” finish for decorative applications
Soap (round wire only): Soap is used as a lubricant in the drawing process and is not removed. It acts as a lubricant during customer part forming operation. A soap finish is available in tempered products.
Plated: Many plating options are available.
∗Special finishes are available: Contact Ulbrich Wire Sales with special finish and plating requests.

Forms
Continuous Coils
Cut to lengths
Precision cutting

Heat Treatment
Alloy 430 is non-heat treatable

Welding
For best results refer to: SSINA’s “Welding of Stainless Steels and Other Joining Methods”