SS 321 Stainless Steel
Plates Manufacturer
At Steel Icon Stainless Pvt. Ltd., we are a trusted manufacturer and supplier of SS 321 Stainless Steel Plates, offering high-quality products recognized for their exceptional resistance to intergranular corrosion and superior performance at elevated temperatures. SS 321 is a titanium-stabilized austenitic stainless steel ideal for applications involving long-term exposure to high temperatures.
Our SS 321 plates meet international standards such as ASTM, ASME, EN, and DIN, serving industries like aerospace, chemical processing, thermal processing, and power generation.
| Products |
|---|
|
Stainless Steel Bar |
|
Fasteners |
|
Forged Products |
|
Flanges |
|
Forged Fittings |
|
Stainless Steel Billets |
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Round Corner Square Billets |
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Stainless Steel Pipes |
|
Pipe Fittings |
|
Valve |
Specifications
| Property | Specification |
|---|---|
|
Material Grade |
SS 321
|
|
Thickness Range |
3mm to 150mm
|
|
Width |
1000mm, 1250mm, 1500mm, 2000mm (custom sizes available) |
|
Length |
2000mm to 6000mm or custom lengths |
|
Surface Finish |
2B, No.1, No.4, BA, Mirror
|
|
Standards |
ASTM A240, ASME SA240, EN 10088, JIS G4304 |
Chemical Composition
| Element | SS 321 (%) |
|---|---|
|
Carbon (C) |
0.08 max |
|
Chromium (Cr)
|
17.0–19.0 |
|
Nickel (Ni) |
9.0–12.0 |
|
Titanium (Ti) |
≥ 5x%C |
|
Manganese (Mn) |
2.00 max |
|
Silicon (Si) |
1.00 max |
Mechanical Properties
| Property | SS 321 |
|---|---|
|
Tensile Strength |
515 – 750 MPa |
|
Yield Strength |
205 MPa min |
|
Elongation (%) |
≥ 40% |
|
Hardness (HRB) |
≤ 95 |
Types of SS 321 Plates Offered
- Hot Rolled Plates
- Cold Rolled Plates
- Polished Plates (2B, No.4, BA, Mirror Finish)
- Chequered / Embossed Plates
- Cut-to-Size Plates
Applications
- Aerospace Industry – Aircraft exhaust manifolds, cabin heaters
- Chemical Processing – Reactors, storage tanks, piping systems
- Thermal Processing Equipment – Heat treatment fixtures, furnace parts
- Power Plants – Boiler casings, superheater tubes
- Oil & Gas Industry – High-temperature piping systems
Key Benefits
- Excellent resistance to intergranular corrosion
- Superior performance at high temperatures
- Good weldability and formability
- Maintains strength and toughness during thermal cycling
- Multiple surface finishes for functional and aesthetic purposes
Frequently Asked Questions
Explore our FAQs for insights on materials, customization, and delivery.
Why choose SS 321 over SS 304 for high-temperature applications?
SS 321’s titanium stabilization prevents carbide precipitation, making it ideal for high-temperature services.
Are SS 321 plates suitable for welding?
Yes, SS 321 exhibits excellent weldability with or without filler metals.
What finishes are available for SS 321 plates?
We offer 2B, No.1, No.4, BA, and Mirror finishes.
Can SS 321 plates be customized in size and thickness?
Absolutely, we provide cut-to-size options to meet specific project requirements.
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