201 Stainless Steel
As a trusted 201 stainless steel manufacturer and supplier, Huaxiao-Alloy delivers cost-effective, corrosion-resistant stainless steel solutions for industries seeking durability and affordability. This guide provides a detailed analysis of 201 stainless steel, including its applications, supply forms, chemical composition, mechanical and physical properties, and answers to key FAQs.
Our Supply Forms & Dimensions
As a premier 201 stainless steel supplier, Huaxiao-Alloy offers the alloy in versatile forms to meet diverse industrial needs:
| Form | Dimensions | Standards |
|---|---|---|
| Sheets/Plates | Thickness: 0.3mm–6mm; Width: 600–1500mm | ASTM A240, JIS SUS201 |
| Coils | Thickness: 0.5–3mm; Width: 10–1300mm | GB/T 4237, EN 1.4372 |
| Bars/Rods | Diameter: 5mm–200mm; Length: 1–6m | ASTM A276, ASTM A479 |
| Tubes/Pipes | OD: 10–500mm; Wall Thickness: 0.5–10mm | ASTM A554, JIS G3446 |
| Wire | Diameter: 0.1–8mm | ASTM A580, DIN 17440 |
Custom sizes (±10% tolerance) and finishes (e.g., No.4 brushed, BA, 2B) available.
What is 201 Stainless Steel?
201 stainless steel (UNS S20100) is a chromium-manganese austenitic stainless steel designed as a lower-nickel alternative to 304 stainless steel. With 16–18% chromium, 3.5–5.5% nickel, and 5.5–7.5% manganese, it balances moderate corrosion resistance, formability, and cost efficiency. Huaxiao-Alloy supplies 201 stainless steel in compliance with ASTM A240, JIS SUS201, and GB/T 3280 standards.
Applications of 201 Stainless Steel
Key Industrial & Commercial Uses
- Decorative Architecture: Elevator panels, handrails, and interior trims due to its polishable surface.
- Household Appliances: Refrigerator doors, dishwasher interiors, and oven linings.
- Automotive Trim: Wheel covers, exhaust tips, and decorative moldings.
- Consumer Goods: Kitchenware, sinks, and low-cost utensils.
- Industrial Equipment: Non-critical components in dry or low-corrosion environments.
Why Partner with Huaxiao-Alloy?
- Cost-Effective Solutions: Competitive pricing for bulk orders.
- Custom Fabrication: Precision cutting, bending, and polishing services.
- Certifications: ISO 9001:2015-certified production with full material traceability.
Chemical Composition of 201 stainless steel
201 stainless steel’s cost efficiency stems from its unique chemistry:
| Element | Content (%) | Role |
|---|---|---|
| Chromium (Cr) | 16.0–18.0 | Provides basic corrosion resistance. |
| Nickel (Ni) | 3.5–5.5 | Partial substitute for manganese. |
| Manganese (Mn) | 5.5–7.5 | Enhances strength and replaces nickel. |
| Carbon (C) | ≤0.15 | Increases hardness. |
| Silicon (Si) | ≤1.0 | Deoxidizer during smelting. |
| Phosphorus (P) | ≤0.06 | Controls brittleness. |
| Sulfur (S) | ≤0.03 | Improves machinability. |
| Nitrogen (N) | ≤0.25 | Stabilizes austenitic structure. |
| Iron (Fe) | Balance | Base metal. |
Complies with ASTM A240, JIS SUS201, and GB/T 3280 standards.
Mechanical Properties of 201 stainless steel
201 stainless steel offers moderate strength and formability:
| Property | Value |
|---|---|
| Tensile Strength | 655–860 MPa |
| Yield Strength (0.2% offset) | 310 MPa (min) |
| Elongation (50mm gauge) | 40% (min) |
| Hardness (Brinell) | 241 HB (max) |
| Modulus of Elasticity | 200 GPa |
Note: Cold working enhances strength but reduces ductility.
Physical Properties of 201 stainless steel
| Property | Value |
|---|---|
| Density | 7,800 kg/m³ |
| Melting Point | 1375–1450°C |
| Thermal Conductivity | 16.3 W/m·K (at 100°C) |
| Electrical Resistivity | 0.73 μΩ·m |
| Magnetic Permeability | <1.02 (Annealed, non-magnetic) |
201 vs 304 Stainless Steel: Key Differences
| Parameter | 201 | 304 |
|---|---|---|
| Nickel Content | 3.5–5.5% | 8–10.5% |
| Corrosion Resistance | Moderate (indoor/dry) | Superior (resists oxidation and acids) |
| Cost | 20–30% lower | Higher |
| Applications | Decorative, appliances | Food processing, medical, marine |
Why Choose Huaxiao-Alloy as Your 201 Stainless Steel Supplier?
- 40+ Years of Expertise: Precision manufacturing and R&D-driven solutions.
- Global Logistics: Efficient delivery to Europe, Asia, and the Americas.
- Quality Assurance: Rigorous testing (spectral analysis, hardness, elongation tests).
- Sustainability: Eco-friendly production with 60% recycled content.
201 is ideal for budget-conscious projects requiring moderate corrosion resistance, such as indoor decor or appliances.
It resists rust in dry/indoor environments but may corrode in coastal or high-humidity areas.
Yes, but post-weld annealing is recommended to restore corrosion resistance in welded zones.
Huaxiao-Alloy offers 2B (smooth), BA (bright annealed), No.4 (brushed), and embossed finishes.
It is not recommended for direct food contact due to lower corrosion resistance compared to 304.
Yes, including Mill Test Reports (MTRs), ISO 9001:2015, and RoHS compliance.
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