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309 stainless steel strip
strip
309 Stainless Steel Strip is a high-alloy austenitic stainless steel known for its exceptional heat resistance and good corrosion resistance in high-temperature environments. Its higher chromium and nickel content provides superior performance compared to 304 stainless steel, making it an ideal choice for applications involving elevated temperatures.
Common applications for 309 Stainless Steel Strip include furnace parts, heating elements, heat exchangers, kiln liners, aircraft and jet engine parts, and other high-temperature processing equipment. Its strength and resistance to oxidation make it highly reliable for demanding industrial uses.
We offer comprehensive customization services, allowing you to specify the precise dimensions, thickness, finish, and specifications required for your project.
| Attribute | Details |
|---|---|
| Product Name | 309 Stainless Steel Strip / Coil |
| Grade | 309 (UNS S30900), 309S (UNS S30908) |
| Standards | ASTM, AISI, JIS, GB, DIN, EN |
| Custom Thickness | 0.1mm - 8.0mm (Customizable as per client requirements) |
| Custom Width | 10mm - 1500mm (Customizable as per client requirements) |
| Surface Finish | 2B, BA, No.1, No.4, HL (Hair Line), 8K (Mirror), etc. |
| Lead Time | Typically 7-14 business days, subject to order volume and specifications. |
| Certifications | ISO 9001, SGS, Mill Test Certificate (MTC) provided with every shipment. |
| Packaging | Standard export sea-worthy packing or customized as requested. |
| Grade | C (max) | Mn (max) | Si (max) | P (max) | S (max) | Cr | Ni |
|---|---|---|---|---|---|---|---|
| 309 / 309S | 0.08 | 2.00 | 1.00 | 0.045 | 0.030 | 22.0 - 24.0 | 12.0 - 15.0 |
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 515 MPa |
| Yield Strength (0.2% Offset) | ≥ 205 MPa |
| Elongation | ≥ 40% |
| Hardness | ≤ 95 HRB / ≤ 217 HB |
A: The primary advantage of 309 stainless steel is its superior heat resistance and high-temperature corrosion resistance. Due to its higher chromium (approx. 23%) and nickel (approx. 14%) content, it performs significantly better in elevated temperature environments where 304 SS would be prone to oxidation and loss of strength.
A: Absolutely. We support a wide range of surface finishes to meet your application's aesthetic and functional requirements. Common finishes like 2B, BA, No.4, and Hairline (HL) are available, and we can discuss any specific needs you may have. Please contact our sales team to specify your desired finish.
A: Yes, every shipment is accompanied by a Mill Test Certificate (MTC) as per EN 10204 3.1. This document provides full traceability and verifies that the material's chemical and mechanical properties conform to the relevant standards and your order specifications.
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