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309h stainless steel pipes contain iron, chromium, nickel, and other alloying elements. They have 25-28% chromium, 24-26% nickel, and 0.04- 0.08% carbon. Other elements, such as silicon, copper, and manganese, may also be present in smaller quantities, depending on the grade and composition of the steel.
The high corrosion resistance of 309H SS Pipes makes them ideal for usage in applications that require long-term exposure to harsh environments, such as chemical and petrochemical plants. Their strength, durability, and temperature resistance make them suitable for many uses, such as boiler tubing, heat exchangers, mechanical components – especially for valves and pumps – steam superheater tubes, pressure piping, fuel lines, and other components. They also have excellent formability properties due to their low carbon content.
Comprehensive table highlights the precise chemical Composition of Stainless Steel 309H Pipes, vital for understanding their properties.
Grade | C | Mn | Si | P | S | Cr | Fe | Ni | |
309H | 0.04-0.10 | 2 | 0.75 | 0.045 | 0.03 | 22-24 | 58-63 | 12-15 |
The chemical composition of Stainless Steel 309H Pipes ensures optimal performance and durability for various industrial applications.
Understanding the mechanical strength of Stainless Steel 309H Pipes is essential for assessing their suitability in applications.
Grade | Tensile Str (MPa) min | Yield Str 0.2% Proof (MPa) min | Elong (% in 50mm) min | Hardness | |
Rockwell B (HR B) max | Brinell (HB) max | ||||
309H | 515 | 205 | 40 | 95 | 217 |
Stainless Steel 309H Pipes exhibit high tensile strength, yield strength, and elongation, ensuring reliability.
The Price Range For Stainless Steel 309H Pipes Products Is ₹230 To ₹300 Per Kilogram.
309H stainless steel pipes can be used for many applications, including boiler tubing, heat exchangers, mechanical components – particularly valves and pumps – steam superheater tubes, pressure piping, fuel lines and other components.
Compared to 304/304L/304H stainless steel pipes, 309H has a higher chromium and nickel content which gives it higher corrosion resistance and strength. It also has better temperature resistance since it has a lower carbon content.
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