Discover high-quality Stainless Steel 321 Flats from Salem Stainless Steel Suppliers Pvt. Ltd., your trusted source in Chennai for premium stainless steel products. Engineered for superior corrosion resistance and high-temperature performance, our SS 321 flats are ideal for demanding industrial applications. Whether you’re in aerospace, chemical processing, or fabrication, we deliver precision-cut flats that meet ASTM A240 standards, ensuring reliability and value.
Stainless steel 321 flats are austenitic stainless steels similar to Grade 304 but with a critical addition of Titanium. Stabilized with Titanium, Grade 321 is specifically designed to perform in the “carbide precipitation range. This Titanium content has a stronger affinity for carbon than chromium does, which prevents the formation of chromium carbides at grain boundaries during welding or high-heat exposure.
Chemical properties of SS 321 Flats:
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.08 max |
| Chromium (Cr) | 17.0 – 19.0 |
| Nickel (Ni) | 9.0 – 12.0 |
| Titanium (Ti) | 5 × C min (up to 0.70 max) |
| Manganese (Mn) | 2.0 max |
| Silicon (Si) | 0.75 – 1.0 max |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.030 max |
| Nitrogen (N) | 0.10 max |
| Iron (Fe) | Balance |
Mechanical Properties of Stainless Steel 321 Flats:
| Property | Value (min) |
|---|---|
| Tensile Strength | 515 MPa |
| Yield Strength (0.2% Proof) | 205 MPa |
| Elongation (in 50mm) | 40% |
| Rockwell B Hardness (HR B) | 95 max |
| Brinell Hardness (HB) | 217 max |
Physical Properties of 321 SS Flats:
| Property | Value |
|---|---|
| Density | 8027 kg/m³ |
| Modulus of Elasticity | 193 GPa |
| Thermal Conductivity | 16.1 W/m·K (100°C) |
| Specific Heat (0-100°C) | 500 J/kg·K |
| Electrical Resistivity | 720 nΩ·m |
| Melting Range | 1400-1425°C |
Product Specifications:
| Property | Details |
|---|---|
| Product | Stainless Steel 321 Flats |
| Shape | Rectangle |
| Length | Upto 10 ft |
| Min. Order Quantity | 200 Kgs |
Industrial Applications of 321 Flats:
- Aerospace Engineering: Jet engine components, exhaust stacks, and piston engine.
- Chemical Processing: High-temperature chemical equipment and expansion joints.
- Refinery Equipment: Polythionic acid service environments and thermal oxidizers.
- Power Generation: Boiler tubes, steam lines, and superheater headers.
Ensure your project stands the test of time and temperature. Contact us today for a competitive quote on stainless steel 321 flats or to discuss your custom sourcing requirements.
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