SS430 stainless steel

Introduction

We manufacture sheets, coils, and plates in stainless steel specifically for SS430, designed for general purpose ferritic stainless steel applications with good corrosion resistance and excellent formability.

Ss430 is a low-nickel, high-chromium ferritic stainless steel known for its good corrosion resistance, good mechanical properties, and excellent surface finish. It is widely used in domestic appliances, automotive parts, and industrial equipment where moderate corrosion resistance and good formability are required.

This grade offers cost-effectiveness with stable microstructure and good weldability.

Chemical composition

Element Content (%) Function / effect
Carbon (c) Max 0.12 Low carbon for good ductility and weldability
Chromium (cr) 16.0 – 18.0 Provides corrosion resistance and oxidation protection
Nickel (ni) Max 0.75 Low nickel content for cost effectiveness
Manganese (mn) Max 1.00 Improves strength and hardenability
Silicon (si) Max 1.00 Improves oxidation resistance
Phosphorus (p) Max 0.040 Controlled to improve toughness
Sulphur (s) Max 0.030 Controlled for better machinability

Mechanical properties

  • Tensile strength: 450 – 600 MPa
  • Yield strength: 275 – 400 MPa
  • Elongation: 22 – 30 %
  • Hardness: 130 – 180 HB

Heat treatment

  • Annealing: improves ductility and relieves internal stresses
  • No hardening by heat treatment; ferritic structure maintained
  • Solution annealing for stress relief if required

Key features and benefits

  • Good corrosion resistance in moderate environments
  • Excellent formability and surface finish
  • Good weldability and fabricability
  • Cost-effective ferritic stainless steel
  • Stable microstructure with dimensional stability

Typical applications

  • Domestic appliances (washers, dryers, kitchen equipment)
  • Automotive trim and exhaust components
  • Industrial equipment and piping
  • Architectural applications
  • Food processing equipment

Equivalent steel grades

  • Astm a240 type 430
  • Jis sus 430
  • En 1.4016

Why Choose SS430 For Your Application?

SS430 Is An Excellent Choice For Applications Requiring Moderate Corrosion Resistance, Good Appearance, And Cost Efficiency. Its Ferritic Structure Provides Good Resistance To Oxidation And StreSS Corrosion Cracking, Making It Suitable For Indoor And Mildly Corrosive Environments.

Comparison table for similar grades

Grade Chromium (%) Nickel (%) Key applications Comments
Ss430 16.0 – 18.0 Max 0.75 General purpose ferritic ss Good corrosion resistance
SS409 10.5 – 11.75 Max 0.75 Automotive exhaust systems Lower chromium, cost-effective
Ss439 17.0 – 19.0 Max 1.0 Higher corrosion resistance Improved strength and corrosion

Summary

Ss430 is a popular general purpose ferritic stainless steel offering good corrosion resistance, excellent formability, and weldability at a cost-effective level. It is widely used in domestic, automotive, and industrial applications where moderate corrosion resistance and good Mechanical properties are required.