310 stainless steel pipe is a high chromium, high nickel austenitic stainless steel designed for high temperature applications. It has excellent high temperature oxidation resistance and corrosion resistance, suitable for a variety of harsh high temperature environments.
Main standards and grades:
American (ASTM) standard: ASTM A213, ASTM A312, ASTM A240 Grade: 310
European (EN) standard: EN 10095 Grade: 1.4841
Japanese (JIS) standard: JIS G3459, JIS G4304 Grade: SUS 310
Chinese (GB/T) standard: GB/T 3280, GB/T 4237 Grade: 0Cr25Ni20
German (DIN) standard: DIN 17456, DIN 17458 Grade: X15CrNi25-20
310 stainless steel pipe, also known as 310S stainless steel pipe or 310 stainless steel decorative pipe, is an austenitic free-cutting stainless wear-resistant acid steel with excellent performance. The following is a detailed introduction to 310 stainless steel pipe:
310 stainless steel exhibits good high temperature resistance due to its high percentage of chromium and nickel content. It can operate continuously at high temperatures and has good creep strength. It is suitable for making various furnace parts with a maximum temperature of 1200℃ and a continuous use temperature of 1150℃. When the temperature exceeds 800℃, 310 stainless steel begins to soften and the allowable stress gradually decreases, but its high temperature strength can still maintain a high level.
310 stainless steel has good oxidation resistance and corrosion resistance, and can remain stable in a variety of corrosive environments, including oxidizing acids, reducing acids, and neutral aqueous solutions. It can withstand fuming nitric acid at room temperature and molten nitrates up to 425℃, showing good resistance to aqueous solution corrosion.
The manufacturing process of 310 stainless steel pipe includes two main methods: hot-rolled seamless steel pipe and cold-rolled (drawn) seamless steel pipe. The production process of hot-rolled seamless steel pipe includes preparation and inspection of tube blank, heating of tube blank, piercing, tube rolling, reheating of steel pipe, sizing (reduction), heat treatment, straightening of finished tube, finishing and inspection, etc. Cold-rolled seamless steel pipe is made through processes such as blank preparation, pickling and lubrication, cold rolling (drawing), heat treatment, straightening, finishing and inspection.
The main chemical composition of 310 stainless steel is as follows:
Chromium (Cr): 24-26%
Nickel (Ni): 19-22%
Carbon (C): ≤ 0.25%
Manganese (Mn): ≤ 2%
Silicon (Si): ≤ 1.5%
Phosphorus (P): ≤ 0.045%
Sulfur (S): ≤ 0.03%
Iron (Fe): Balance
The mechanical properties of 310 stainless steel are as follows:
Tensile Strength: ≥ 520 MPa
Yield Strength: ≥ 205 MPa
Elongation: ≥ 40%
Hardness:
Brinell hardness (HB): ≤ 217
Vickers hardness (HV): ≤ 230
Rockwell hardness (HRB): ≤ 95
310 stainless steel pipes are widely used in many industries due to their excellent performance, including but not limited to:
Petroleum: used to manufacture petroleum equipment, such as reactors, heat exchangers, etc., its corrosion resistance and high temperature strength can effectively resist various corrosive media and high temperature environments. (Source: Sohu.com)
Chemical: In the chemical industry, 310 stainless steel pipes are used to manufacture corrosion-resistant pipes and equipment to ensure the stability and safety of the production process.
Medicine: In the pharmaceutical industry, its good corrosion resistance and hygienic properties make it an ideal choice for pharmaceutical equipment and medical devices.
Aerospace: In the aerospace field, 310 stainless steel pipes are used to manufacture key components such as engine parts and heat exchangers, and withstand extreme environments of high temperature and high pressure.
Construction: In the construction industry, 310 stainless steel pipes can be used for decoration and structural support, and are favored for their beauty and durability.
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Shandong Jialu International Trading Co., Ltd. is a metal material production, processing and sales enterprise integrating ductile iron pipes, steel pipes, steel plates, steel coils, steel wires, steel meshes, welding wires and welding rods.