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Kyaw Stainless, a leading manufacturer and supplier based in Naypyidaw, Myanmar, offers premium-grade Stainless Steel 309H Sheets and Plates designed for superior performance in high-temperature and corrosive environments. These sheets and plates are produced using high-quality raw materials and advanced manufacturing techniques to ensure excellent strength, oxidation resistance, and durability. With enhanced carbon content, Stainless Steel 309H provides improved creep resistance and high-temperature stability. Kyaw Stainless is committed to delivering products that meet international quality standards, serving industries such as petrochemical, chemical processing, power generation, and heat treatment with dependable stainless steel sheet and plate solutions.
Stainless Steel 309H Sheets and Plates are composed of chromium (22–24%), nickel (12–15%), and carbon (0.04–0.10%), with additions of manganese (≤2%), silicon (≤1%), phosphorus (≤0.045%), and sulfur (≤0.03%). The high chromium and nickel content ensures excellent resistance to oxidation and scaling, while the higher carbon percentage enhances creep strength and thermal stability. Mechanically, these sheets and plates offer a tensile strength of approximately 515 MPa, yield strength of 205 MPa, and elongation of 40%. They retain excellent mechanical properties, toughness, and structural integrity even under prolonged high-temperature exposure.
| Specifications | : | ASTM A240 / ASME SA240 |
| Standard | : | ASTM, ASME and API |
| Thickness | : | 4.0mm – 100mm |
| Specialize | : | Shim Sheet, Perforated Sheet, B. Q. Profile. |
| Form | : | Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) |
| Finish | : | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
| Hardness | : | Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc. |
| Grade | : | SS 309H, (UNS S30909) |
| Grade | Si | Cr | Ni | Mn | Si | C | P | S |
| SS 309H | 0.75 | 22.0-24.0 | 12.0-15.0 | 2.00 | 0.75 | 0.04-0.10 | 0.045 | 0.030 |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 309H | 515 | 205 | 40 | 95 | 217 |
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Due to excellent corrosion resistance, these sheets are manufactured at very high temperatures. Mechanical properties are improved by that manufacturing process. They are available with thicknesses in range of 3 mm up to 50 mm and width up to 2000 mm for structural and industrial applications.
The cold rolled plates were produced at room temperature with a polish finish. The plates come in various thicknesses from 0.5 mm to 6 mm and widths as much as 1500 mm making it very ideal for precision and aesthetic purposes.
These plates offer excellent corrosion resistance and a textured surface for improved grip and slip resistance. They are usually available in thicknesses from 3 mm to 10 mm and dimensions up to 2000 mm x 1000 mm, and are used in flooring and safety applications.
The perforated sheet has strong resistance to corrosion with various hole patterns for functional as well as for aesthetic purposes. Sizes are commonly between 0.5 and 6 mm in thickness, and up to 2000 mm x 1000 mm in dimensions to be used in filtration and ventilation.
These thin sheets give good corrosion resistance and are applied to spacing and levelling accurately. The availability is as thin as 0.1 mm, with up to 1000 mm width. These sheets are of crucial use for aligning machinery and construction work.
excellent resistance to corrosion with a highly reflective finish through polishing. They have thicknesses in the range of 1-20 mm, and their dimensions could go up to 2000 mm x 1000 mm, commonly being used in decoration and architecture applications.
Stainless Steel 309H Sheets and Plates are widely used in high-temperature and corrosive environments due to their excellent heat and oxidation resistance. They are commonly found in furnaces, heat exchangers, boilers, and refractory supports. Industries such as power generation, petrochemical, and thermal processing utilize them for components like burner parts, kiln liners, and annealing covers. Additionally, they are used in the manufacturing of stainless steel equipment for chemical plants, incinerators, and food processing units, ensuring durability and performance in extreme conditions. Their high carbon content enhances creep resistance, making them ideal for elevated temperature applications.
Stainless Steel 309H Sheets and Plates are widely used in applications requiring exceptional heat and corrosion resistance. They are ideal for use in furnaces, kilns, boilers, heat exchangers, and flue gas systems. Industries such as petrochemical, refineries, cement, and power generation utilize these sheets and plates for manufacturing components that operate in high-temperature and oxidizing environments. Their superior creep strength and resistance to carburization make them suitable for fabrication of radiant tubes, combustion chambers, and thermal processing equipment. Stainless Steel 309H Sheets and Plates ensure long-lasting performance and reliability in demanding industrial conditions.
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