Description
International Standard Designations
| Country/Region | Standard Grade | Equivalent Designation |
|---|
| USA | ASTM A276/A479 | UNS S30200 |
| Europe | EN 1.4310 | X5CrNi18-9 |
| Japan | JIS SUS 302 | - |
| India | IS 10 | - |
| China | GB 12Cr18Ni9 | - |
Chemical Composition (Weight %)
Carbon (C): ≤0.15%
Chromium (Cr): 17–19%
Nickel (Ni): 8–10%
Manganese (Mn): ≤2.0%
Silicon (Si): ≤1.0%
Phosphorus (P): ≤0.045%
Sulfur (S): ≤0.03%
Iron (Fe): Balance
Key Properties
Physical:
Density: 8.0 g/cm³
Melting Point: 1.400–1.450°C
Thermal Conductivity: 16.3 W/m·K (at 100°C)
Electrical Resistivity: 0.72 μΩ·m
Mechanical (ASTM A240):
Tensile Strength: 515–760 MPa
Yield Strength: ≥205 MPa
Elongation: ≥40% (in 50mm)
Hardness: ≤90 HRB (Rockwell B)
Modulus of Elasticity: 193 GPa
Top 5 Advantages for Industrial Buyers
Corrosion Resistance: Performs well in mildly corrosive environments (e.g., acidic foods, urban pollution).
High-Temperature Strength: Retains integrity up to 870°C (1.598°F) under intermittent use.
Ease of Fabrication: Excellent for deep drawing, bending, and machining.
Cost-Efficiency: Lower nickel content vs. 304 reduces material costs.
Surface Finish: Polishes to a mirror-like aesthetic for consumer-facing components.
Typical Applications
Automotive: Exhaust systems, trim, fasteners.
Food Processing: Kitchenware, storage tanks, conveyor belts.
Construction: Architectural cladding, elevator panels.
Medical: Surgical tools (post-sterilization compatibility).
Aerospace: Non-critical structural parts.
Chemical: Storage for non-hazardous liquids.
Consumer Appliances: Sinks, oven linings, dishwasher components.
Energy: Heat exchanger tubing.
FAQs for B2B Decision-Makers
Q1: How does 302 differ from 304 stainless steel?
A: 302 has slightly higher carbon and lower nickel, offering better strength at a lower cost but slightly reduced corrosion resistance. Ideal for non-marine applications.
Q2: What’s the maximum continuous service temperature?
A: 870°C (1.598°F). For prolonged high-heat use, consider 309/310 grades.
Q3: Is 302 stainless steel magnetic?
A: Typically non-magnetic in annealed state; slight magnetism may occur after cold working.
Why Partner With Us?
Global Certification: ASTM, EN, JIS, and ISO compliance.
Custom Sizing: Sheets, coils, bars, and tubes tailored to your specs.
Bulk Discounts: Competitive pricing for orders >5 tons.
Technical Support: Free metallurgical consultation for your projects.
Ready to Order or Need a Quote?
Contact us today to discuss your 302 stainless steel requirements!
Keywords: 302 Stainless Steel Supplier, B2B Industrial Metals, High-Temperature Alloy, Corrosion-Resistant Steel, ASTM S30200
