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Solitaire Steel & Engineering LLP, based in Khetwadi, Mumbai, India, is a trusted supplier and exporter of high-quality 321 stainless steel plates. Known for their superior resistance to oxidation and excellent stability in high-temperature environments, our 321 stainless steel plates stand apart due to our strict quality standards and precision manufacturing. We are committed to supplying consistent, durable plates that meet the rigorous demands of industries worldwide, including aerospace, chemical processing, and heat treatment. Our products have been supplied to various countries, supporting critical applications in sectors that require reliable performance under extreme conditions.
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Our 321 stainless steel plates are available in a variety of thicknesses and finishes, tailored to high-temperature applications where carbide precipitation resistance is essential. Grade 321 is an austenitic chromium-nickel stainless steel stabilized with titanium, which prevents carbide precipitation during welding, making it ideal for welded structures and high-heat environments. These plates are commonly used in applications such as exhaust manifolds, expansion joints, and aircraft engine parts. For example, the 321 stainless steel is often chosen for exhaust manifolds in automotive and aerospace industries due to its ability to withstand temperatures up to 900°C without deformation or oxidation.
Pricing for 321 stainless steel plates depends on factors like thickness, surface finish, and order quantity. Although 321 is priced slightly higher than 304 stainless steel due to its additional titanium content and high-temperature performance, it offers better long-term value in applications requiring heat stability. For environments with even more extreme conditions, alloy 347 may be a preferred, though costlier, option.
| Feature | Description |
|---|---|
| High Resistance Stability | Maintains performance at temperatures up to 900°C |
| Resistance to Oxidation | Ideal for high-heat environments |
| Prevents Carbide Precipitation | Stabilized with titanium for enhanced weldability |
| High Strength and Durability | Suitable for structural applications in harsh environments |
| Cost-Effective for Heat Applications | Reduces replacement costs in high-temperature settings |
| Versatile Applications | Used in aerospace, automotive, and industrial equipment |
| Parameter | Details |
|---|---|
| Thickness | 1.0mm to 50mm |
| Width | Up to 2000mm |
| Length | Up to 6000mm |
| Available Finishes | 2B, No.4, Mirror, Brushed |
| Standards Compliance | ASTM, ASME, EN, JIS |
| Tolerance | In line with international standards |
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.08 |
| Manganese (Mn) | ≤ 2.00 |
| Silicon (Si) | ≤ 0.75 |
| Chromium (Cr) | 17.0 – 19.0 |
| Nickel (Ni) | 9.0 – 12.0 |
| Sulfur (S) | ≤ 0.030 |
| Phosphorus (P) | ≤ 0.045 |
| Titanium (Ti) | 5x(C+N) min – 0.7 max |
| Property | Value |
|---|---|
| Tensile Strength | 515 MPa min |
| Yield Strength200 | 205 MPa min |
| Elongation (%) | 40 min |
| Hardness (HB) | ≤ 217 |
| Modulus of Elasticity | 193GPa |
| Thickness Range (mm) | Surface Finish | Price Range (per kg) |
|---|---|---|
| 1.0 – 10 | 2B | $4.20 – $4.80 |
| 1.0 – 10 | No.4 | $4.40 – $5.00 |
| 1.0 – 10 | Mirror | $4.60 – $5.20 |
| Custom Grades | Upon Request | Varies |
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Choose Reliable Heat-Resistant 321 Stainless Steel Plates! Contact Solitaire Steel & Engineering LLP today for a customized quote. Our 321 stainless steel plates provide unmatched stability and durability for high-temperature industrial applications.
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