‌430 Stainless Steel Sheet

Cost-Effective Ferritic Stainless Steel‌

As a representative ferritic stainless steel, Type 430 offers these core advantages:

‌‌Cost Efficiency‌:Nickel-free composition, priced at 60%-70% of 304 stainless steel.
‌‌‌Corrosion Resistance‌: 16%-18% chromium content forms a dense oxide layer, resisting atmospheric corrosion and nitric acid environments.
‌‌‌Physical Properties‌: 50% higher thermal conductivity than austenitic grades, 30% lower thermal expansion coefficient.
‌‌‌‌Formability‌: 92% qualification rate for deep drawing processes, ideal for precision stamping.

Technical Parameters (Chemical Composition, wt%)

Element	Content(%)	Element	Content(%)
Carbon (C)	≤0.12	Phosphorus (P)	≤0.040
Silicon (Si)	≤0.75	Sulfur (S)	≤0.030
Manganese (Mn)	≤1.00	Chromium (Cr)	16.0-18.0
Nickel (Ni)	≤0.60	Molybdenum (Mo)	0.75-1.25 (optional)

‌Mechanical Properties‌:

Tensile Strength ≥450MPa | Yield Strength ≥205MPa | Elongation ≥22%

Surface Finishes

Finish Type	Characteristics	Applications
2B	Silver-white matte	Appliance panels/Architectural trim
BA	Mirror polish (reflectivity >90%)	Premium cookware/Elevator decor
HL	Hairline brushing (grain depth 0.1-0.3mm)	Furniture/Electronics housings
PVD Coating	Rose gold/Champagne colors	Luxury packaging

Analysis of Performance Characteristics and Applications of 430 Stainless Steel Plate

1. Performance Characteristics

1.1 Corrosion Resistance

430 stainless steel contains 16%-18% chromium. In dry environments, it forms a stable oxide film, exhibiting good resistance to atmospheric corrosion, but its resistance to strong acids and alkalis is weak. It is weakly magnetic in the annealed state, and its magnetism increases after cold working.

1.2 Heat Resistance

It maintains stability in high-temperature environments of 200-600℃, making it suitable for high-temperature components such as exhaust systems and mufflers.

1.3 Processing Performance

Its ferritic structure makes it easy to stamp and bend, but care must be taken to avoid hot cracking during welding, and post-weld heat treatment is required. Its thermal conductivity is better than austenitic stainless steel, and its coefficient of thermal expansion is low.

1.4 Mechanical Properties

Tensile strength ≥450MPa, moderate yield strength, good elongation, suitable for cold forming.

2. Main Applications

2.1 Home Appliances and Kitchenware

Widely used in microwave oven liners, washing machine drums, cookware, etc., offering both cost-effectiveness and durability.

2.2 Architectural Decoration

Suitable for low-maintenance applications such as handrails, baseboards, and outdoor signage; surface finishes can be brushed or mirrored.

2.3 Automotive Parts

Used in exhaust pipes, decorative strips, etc., providing high-temperature resistance and meeting aesthetic requirements.

2.4 Industrial Equipment

Manufacturing chemical storage tanks, pipelines, and fuel burner components; performs excellently in mildly corrosive environments.

3. Limitations

430 stainless steel is prone to pitting corrosion in chlorine-containing environments and has poor low-temperature toughness, making it unsuitable for high-load or extremely corrosive environments.

Why Choose Us ?

‌‌‌‌‌Material Control‌: Primary coils from Baosteel/TISCO with strict Cr control (17±0.5%)
‌‌‌‌‌‌Processing Technology‌:CNC laser cutting (±0.1mm precision) and hydrogen-protected continuous annealing lines.
‌‌‌‌‌‌‌Quality Assurance‌:SGS reports per batch, salt spray resistance >500 hours (ASTM B117 standard).