Stainless Steel 309S Flats
Stainless Inox is one of the leading Supplier, Exporter and Stockholders of Stainless Steel 309S Flats in Dubai, UAE that is being made up from High Quality of Standard Raw Materials.
SS 309S Flats have a much less carbon composition which minimizes carbide precipitation and improves weldability. Our 309S Stainless Steel Flat Bars are used exclusively for their high temperature oxidation resistance, excellent high temperature strength, along with their resistance to creep deformation and environmental attack. Some examples of these SS UNS S30908 Flats include: Heating elements, Aircraft and jet engine parts, Heat exchangers, Carburizing annealing products, and so on.
Designed as per national and international standards, these Stainless Steel Din 2.4660 Flats are extremely long-lasting and can fit in to any length with no trouble due to the accessibility of different sizes and shapes.
ASTM A240 Stainless Steel 309S DIN 2.4660 Flats Suppliers, SS 309S Flats, Stainless Steel 309S Flats Stockholders in Dubai, Stainless Steel 309S Flats
Stainless Steel UNS S30900/S30908 Flats, SS 309S Flats Supplier in UAE, SS 309S Flats Exporter, Steel 309S Flats
Stainless Steel 309S Flats
SS 309S Flats
Steel 309S Flats
Stainless Steel 309S Flats Specification :
| Standard | : | ASTM A240 / ASME SA240 |
| Size | : | 1000 mm x 2000 mm 1220 mm x 2440 mm (4' x 8') 1250 mm x 2500 mm 1500 mm x 3000 To 6000 mm 2000 mm x 4000 To 6000 mm |
| Thickness | : | 0.3 mm To 120 mm |
| Hardness | : | As per ASME A & NACE MR 175 |
| Finish | : | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
| Form | : | Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) etc. |
| STANDARD | UNS | JIS | WERKSTOFF NR. | AFNOR | BS | GOST | EN |
| SS 309S | S30900/S30908 | - | 2.4660 | - | - | - | FeMi35Cr20Cu4Mo2 |
Types Of Stainless Steel 309S Flats :
> SS 309S Flats
> AISI Stainless Steel 309S Flats
> ASTM A240 SS 309S Flats
> Stainless Steel S30900/S30908 Flats
> ASME SA 240 SS 309S Flats
> SS Flats
> Stainless Steel Flats
> SS Din 2.4660 Flats
Origin of Material
Why Choose Stainless Inox for SS 309s flats?
Stainless Inox is a leading supplier, exporter, and stockist of Stainless Steel 309S Flats (UNS S30900 / S30908) to industries that require consistent performance in continuous high-temperature service. These flats are manufactured as per the ASTM A276 and ASTM A479 standards. SS 309S Flats have a composition of about 22-24% chromium and 12-15% nickel, and offer outstanding resistance to oxidation and scaling up to approximately 980°C. These are commonly used in furnace components, boilers, heat treatment equipment, and thermal processing systems and are available in widths between 20 mm to 300 mm and thicknesses of 3 mm to 50 mm. Low carbon content (up to 0.08%) reduces the tendency of precipitation of carbides during welding and enhances weldability and resistance to intergranular corrosion. Every batch is supplied with mill test certificates, with third-party inspection available on request, and matching Stainless Steel 309S Round Bars and Plates can also be supplied for complete project requirements.
Frequently Asked Questions
309S carries a maximum carbon content of 0.08%, against 0.20% for standard 309. That lower carbon limits carbide precipitation at grain boundaries during welding, so 309S holds up better in fabricated parts that see repeated heat cycles.
Yes. The chromium and nickel content forms a stable oxide layer at sustained temperatures up to around 980°C. This resists scaling far better than standard 300-series grades under continuous heat exposure.
Yes. Welding uses standard austenitic procedures, and the low carbon content reduces sensitization risk near weld zones. Most fabricators run it with matching filler wire without post-weld heat treatment.
Yes. In-house cutting has a capability of cutting to custom lengths, angles and edge preparation according to drawing requirements. Mill lengths are also still available as stock orders.
Store flats, preferably on stands, indoors and dry, out of the way of ferrous contamination. Surface contact with carbon steel during storage can result in staining, which can be prevented by simple separation.
Yes. Each batch is accompanied by mill test certificates for chemical composition and mechanical properties. If a client's project specification calls for third party inspection certificates these are arranged separately.




