Stainless Steel 309H Angle is a high-temperature resistant alloy known for its excellent strength and stability in elevated heat environments. The “H” grade indicates a higher carbon content, which improves its structural integrity when exposed to extreme temperatures for long durations. This makes SS 309H Angles a preferred choice in heat treatment plants, furnace components, boiler parts, and thermal processing units. Along with high heat resistance, the alloy also offers strong resistance to oxidation and corrosion. Its ability to maintain shape, durability, and mechanical strength under continuous thermal cycles makes it a reliable material for industrial, construction, and engineering applications.
Stainless Steel 309H contains chromium and nickel in higher proportions, which provide the alloy with excellent resistance to oxidation and scaling at high temperatures. The elevated carbon content contributes to improved creep resistance and structural strength during prolonged exposure to heat. It maintains stable mechanical properties and hardness, even at temperatures approaching 1000°C. The alloy demonstrates good tensile strength, flexibility, and toughness, making it suitable for both fabrication and welding processes. Its metallurgical stability, resistance to thermal fatigue, and durability ensure optimal performance in industrial environments where constant heat exposure is unavoidable.
Specifications : ASTM A276, ASTM A479 / ASME SA276, ASME SA479
Angle Size Range : 20 x 20 mm to 100 x 100 mm
Angles Thickness : 3 to 12 mm (depending on size)
Channel Size Range : Base: 80 to 150 mm; Side: 40 to 75 mm
Channel Thickness : 5 to 6 mm (depending on size)
Length : 3MTR, 4MTR, 5MTR, 6MTR, or Custom Cut Sizes
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 309 | min. | – | – | – | – | – | 18.0 | – | 8.0 | – |
| max. | 0.10 max | 2.0 max | 0.75 max | 0.045 max | 0.03 max | 20.0 | 10.5 | – | ||
| 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 | ||||
| 309 | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % | 92 | 201 |
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 309 | S30900 | – | – | 1.4828 | – | – | – |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Victor Sheets and Plates based in Abuja, Nigeria, is a leading supplier and stockist of high-quality metal products, including Sheets, Plates, Coils, Foils, Angles, Channels, Circles, and Slitting Coils, all offered with exceptional service and tailored to meet our customers specific requirements. With a focus on delivering superior products, we cater to a wide range of industries, providing reliable solutions for diverse applications. Our extensive inventory includes Known for our unique finishing techniques and commitment to quality. We are dedicated to ensuring customer satisfaction through dependable service and top-notch products.
Stainless Steel 309H Angles are widely used in industries that deal with high-temperature processing and thermal stress conditions. They are commonly applied in furnace frames, heat shields, burner plates, kiln structures, and exhaust systems due to their heat and oxidation resistance. Refineries and petrochemical plants utilize these angles in piping support structures and reactor chambers. In power generation units, SS 309H is used for boiler casings and heat exchangers. The metal’s strength and stability also make it suitable for architectural structures exposed to fluctuating temperatures. Additional applications include heat treatment equipment, thermal processing conveyors, industrial ovens, and metallurgical machinery.
Stainless steel 309H angle is widely used in high temperature applications due to its excellent oxidation and corrosion resistance. It is commonly used in furnace components, heat exchangers and furnaces. The high chromium and nickel content makes it suitable for handling high temperatures in the chemical industry, petrochemical industry and power plants. Additionally, it is used for industrial boilers, manufacturing processes and waste treatment equipment. Its durability and durability make it a popular choice for building frames and supports in harsh environments.
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