Home > Sheet and Plates > Stainless Steel 309H Sheet and Plates
Nakamura Stainless, a well-respected manufacturer and supplier based in Pulau Ujong, Singapore, has built a solid reputation for providing top-notch stainless steel products tailored for industries around the globe. Among their impressive lineup, **Stainless Steel 309H Sheet and Plates** stand out for their exceptional heat resistance, strength, and corrosion resistance. Engineered to endure high temperatures, these sheets and plates are perfect for use in tough environments. Thanks to meticulous engineering and rigorous quality control, Nakamura Stainless guarantees that their Stainless Steel 309H Sheet and Plates offer durability, reliability, and consistent performance, making them a go-to choice for industrial applications in harsh conditions.
These Stainless Steel 309H Sheet and Plates are made up of 22–24% chromium, 12–15% nickel, and a higher carbon content (0.04–0.10%) compared to 309/309S, which boosts their creep strength and stability at elevated temperatures. Additional elements like manganese, silicon, and phosphorus enhance their toughness and oxidation resistance. On the mechanical side, they boast a tensile strength of about 515 MPa, a yield strength of 205 MPa, and an elongation of 40%. The increased carbon content ensures they maintain structural integrity, excellent creep resistance, and strength over long-term use at temperatures exceeding 1000°C.
| 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.
Polished plates offer 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.
Nakamura Stainless is a leading supplier and stockist of high-quality stainless steel 309H sheet and plates in Pulau Ujong, Singapore. Our products are widely used in various applications, and we are committed to delivering excellent service, resulting in high customer satisfaction. Our unique finishing techniques further distinguish us in the stainless steel industry. We are dedicated to consistently providing superior products and effectively meeting our customer’s needs.
Stainless Steel 309H Sheet and Plates find their place in industries that demand high-temperature strength and corrosion resistance. They’re commonly used in furnace parts, heat exchangers, kilns, and boilers, thanks to their ability to resist oxidation and scaling. In the petrochemical and power generation sectors, they play a crucial role in fabricating processing equipment, hot gas ducts, and thermal shields. Their durability also makes them ideal for refineries, chemical plants, and structural projects. These sheets and plates consistently deliver reliable performance in challenging environments, ensuring longevity and safety in critical operations.
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