The 200 Series Stainless Steel Manufacturer Of 201 Stainless Steel Coil
Economy austenitic stainless steel coil offering cost-effective corrosion resistance for commercial applications
201 stainless steel coil combines austenitic properties with manganese-based strengthening to deliver cost-effective corrosion resistance. Ideal for commercial applications, kitchenware, and general industrial use where budget constraints require material optimization without sacrificing basic corrosion protection.
Quick Specifications
- UNS Designation
- S20100
- Werkstoff Number
- 1.4372
- Yield Strength (Annealed)
- 310 MPa (45 ksi) minimum
- Tensile Strength (Annealed)
- 620 MPa (90 ksi) minimum
- Elongation (Annealed)
- 40% minimum
- Density
- 8.0 g/cm³
Standards & Certifications
Product Description
201 stainless steel is an economy austenitic grade developed as a nickel-reducing alternative to the standard 304 composition. By substituting manganese and nitrogen for approximately one-half of the nickel content, 201 achieves comparable strength and formability while reducing material cost by 25-35% compared to 304. This strategic alloying approach makes 201 ideal for high-volume commercial applications, kitchenware production, and industrial equipment where cost containment is a primary objective without completely sacrificing corrosion resistance.
The production of 201 stainless steel coil utilizes vacuum induction melting followed by controlled casting and hot rolling to achieve the desired metallurgical structure. The manganese content up to 7.5% provides strength comparable to 304 while maintaining the austenitic structure that ensures good ductility and weldability. After hot rolling, controlled cooling and annealing at 1,050°C develops the optimal austenitic microstructure with dissolution of all carbides. Final pickling removes surface oxides while passivation establishes the protective chromium oxide film.
201 stainless exhibits good corrosion resistance in atmospheric exposure, freshwater, and mildly corrosive industrial environments. The material performs excellently in kitchenware applications, food service equipment, and domestic appliances exposed to water, mild detergents, and food acids. In more aggressive chloride environments such as seawater or high-salt-spray coastal zones, 316 would be preferable due to its superior pitting resistance. However, for inland and urban atmospheric exposure, 201 provides adequate performance at substantially lower cost.
The work-hardening capability of 201 stainless allows significant strength increases through cold rolling while maintaining adequate ductility. Cold-rolled 201 can achieve tensile strengths of 700+ MPa, enabling thin-gauge applications requiring both strength and corrosion resistance. The material is readily weldable using standard austenitic filler materials, and the non-sensitizing nature of 201 eliminates the need for post-weld heat treatment in most applications, simplifying fabrication procedures and reducing production costs.
Specifications
| UNS Designation | S20100 |
| Werkstoff Number | 1.4372 |
| Yield Strength (Annealed) | 310 MPa (45 ksi) minimum |
| Tensile Strength (Annealed) | 620 MPa (90 ksi) minimum |
| Elongation (Annealed) | 40% minimum |
| Density | 8.0 g/cm³ |
| Modulus of Elasticity | 193 GPa |
| Thermal Conductivity | 16 W/m·K at 20°C |
| Coefficient of Linear Expansion | 15.9 × 10⁻⁶ /°C (0-100°C) |
| Pitting Resistance Equivalent (PRE) | 28 (moderate resistance) |
| Magnetic Properties | Austenitic (non-magnetic, slight ferromagnetism when cold worked) |
| Cost vs 304 | 25-35% lower material cost |
Chemical Composition
| Element | Content (%) |
|---|---|
| Chromium (Cr) | 16.0-18.0 |
| Nickel (Ni) | 3.5-5.5 |
| Manganese (Mn) | 5.5-7.5 |
| Nitrogen (N) | 0.20-0.30 |
| Carbon (C) | 0.15 max |
| Silicon (Si) | 0.75 max |
| Phosphorus (P) | 0.060 max |
| Sulfur (S) | 0.030 max |
| Iron (Fe) | Balance |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (Cold Rolled 50%) | 860 MPa minimum |
| Yield Strength (Cold Rolled 50%) | 600 MPa minimum |
| Elongation (Cold Rolled 50%) | 15% minimum |
| Hardness (Annealed) | 217 HV maximum |
| Impact Strength (Charpy V-notch) | 100+ J at room temperature |
| Work Hardening Rate | Excellent strain hardening capability |
Key Features & Advantages
Applications
Commercial Kitchenware
Flatware, cookware, and kitchen equipment in commercial food service facilities where cost-effective corrosion resistance and good appearance are essential requirements.
Domestic Appliances
Washing machine components, dishwasher interior parts, and small appliance housings where water exposure requires corrosion protection at consumer-acceptable pricing.
General Industrial Equipment
Equipment casings, machinery guards, and structural components in manufacturing facilities requiring basic corrosion protection without the premium cost of 304 or 316 stainless.
Automotive Trim
Non-structural automotive trim, badge mounting components, and low-load brackets in non-coastal regions where moderate corrosion resistance is adequate.
Consumer Products
Consumer electronics casings, hardware components, and decorative elements where cost optimization is critical and severe corrosion exposure is not expected.
Food Service Equipment
Beverage dispensing systems, food holding equipment, and service countertops in restaurants and institutional food service where regular cleaning with mild detergents is the norm.
Frequently Asked Questions
What is the main difference between 201 and 304 stainless steel?
Is 201 stainless suitable for food contact applications?
Can 201 stainless be cold rolled to increase strength?
What is the weldability of 201 stainless coil?
How does 201 perform in coastal atmospheric environments?
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