What is the difference between SS 410 and 304?

SS 410 vs SS 304 Stainless Steel: Key Differences Explained

Introduction to SS 410 and SS 304 Stainless Steel

SS 410 and SS 304 are two popular stainless steel grades with distinct properties, making them suitable for different applications. SS 304 is an austenitic stainless steel (300 series), known for its excellent corrosion resistance and formability, while SS 410 is a martensitic stainless steel (400 series), valued for its hardness and strength but with moderate corrosion resistance. Gangsteel, a leading manufacturer and exporter in China, supplies both grades compliant with ASME SA240 and ASTM A240.

As specialists in ASME SA240 stainless steel plates, Gangsteel offers customized solutions for global clients. This guide compares SS 410 and SS 304 based on composition, properties, applications, and more to help choose the right material.

Chemical Composition Comparison

The composition differs significantly: SS 304 has nickel for corrosion resistance, while SS 410 is nickel-free and higher in chromium for hardness. The table below shows typical values:

Gangsteel's SS 304 and 410 meet these specs for reliable performance.

Mechanical Properties Comparison

SS 410 is heat-treatable for high hardness, while SS 304 is not and focuses on ductility. The table below compares annealed values:

Physical Properties Comparison

Physical properties are comparable, but 410 has better heat conductivity.

Corrosion Resistance: SS 410 vs SS 304

SS 304 has superior corrosion resistance due to higher chromium and nickel, making it suitable for wet or acidic environments. SS 410 has moderate resistance and can rust in moist conditions but performs well in dry or mildly corrosive settings.

Hardness and Strength

SS 410 is harder and can be heat-treated to high strength (up to 400 Brinell), ideal for tools. SS 304 is softer (201 Brinell max) but more formable.

Magnetic Properties

SS 410 is magnetic (martensitic), while SS 304 is non-magnetic (austenitic). This is a quick test to distinguish them.

Weldability and Formability

SS 304 is easier to weld and form, with better ductility. SS 410 is weldable but requires preheating to avoid cracking due to its martensitic nature.

Price Comparison

SS 410 is cheaper ($1,500-$2,000/MT) than SS 304 ($1,820-$3,584/MT) due to no nickel. Gangsteel offers both at competitive rates.

Applications of SS 410 and SS 304

SS 304 for corrosive environments (e.g., food tanks, architectural panels). SS 410 for high-strength, wear-resistant uses (e.g., cutting tools, turbine blades, valves). The table below shows typical uses:

Gangsteel’s ASME SA 213/SA 213M stainless pipes complement both grades.

Comparing 410 and 304 with Other Grades

410/304 vs 201: 304 has better corrosion due to nickel; 201 is cheaper but less resistant.

410/304 vs 430: 410 is harder and heat-treatable; 430 is ferritic with moderate resistance, similar to 410 but less hardenable.

Gangsteel’s nickel alloy steel plates offer advanced alternatives.

Why Choose Gangsteel for SS 410 and SS 304?

Gangsteel provides both grades with:

• Quality Assurance: Compliant with ASME SA240 and ASTM A240.
• Customization: Various sizes and finishes.
• Global Delivery: Worldwide shipping.
• Variety: Including SA240 Gr 347 and SA240 Gr 201L.

Conclusion

SS 410 is a martensitic, magnetic steel with high hardness and moderate corrosion resistance, ideal for tools and blades, while SS 304 is austenitic, non-magnetic with excellent corrosion resistance, suited for food and chemical applications. Gangsteel offers high-quality options for both. Contact for UNS stainless steel plates.