AISI 310 stainless steel is an austenitic stainless steel with high heat resistance. It is known for its:
- Excellent corrosion resistance: AISI 310 resists oxidation and corrosion in a variety of environments, including high-temperature applications.
- High-temperature strength: AISI 310 retains its strength and ductility even at elevated temperatures, making it suitable for use in load-bearing applications.
- Good weldability: AISI 310 can be welded using a variety of methods, making it easy to fabricate and repair.
AISI 310 is a versatile material that can be used in a wide range of applications, including:
- Heat treating: AISI 310 is used in furnace parts, heat exchangers, and other components that are exposed to high temperatures.
- Chemical processing: AISI 310 is used in tanks, pipes, and pumps that handle corrosive chemicals.
- Power generation: AISI 310 is used in boilers, turbines, and other components in power plants.
- Aerospace: AISI 310 is used in aircraft exhaust systems and other components that are exposed to high temperatures.
AISI 310 is a valuable material for many applications due to its combination of properties. It is strong, durable, corrosion-resistant, and easy to fabricate. If you are looking for a high-performance stainless steel for your next project, AISI 310 is a good option to consider.
Chemical Composition:
| Grade | C | Si | P | S | Mn | Cr | Ni |
|---|---|---|---|---|---|---|---|
| 310 | 0.25 | 1.50 | 0.045 | 0.030 | 2.0 | 24-26 | - |
| 310S | 0.08 | 1.50 | 0.045 | 0.030 | 2.0 | 24-26 | - |
Key Technical Characteristics of AISI 310 Steel:
- Density: 7.83 g/cm³ (indicating high strength and resistance to deformation)
- Tensile Strength: ≥ 515 MPa (high strength typical of most stainless steel grades)
- Brinell Hardness: 172 HB
- Yield Strength: 205 MPa
| Physical properties | Density | Melting point | Specific heat capacity | Thermal expansion | The average coefficient of thermal expansion | Electrical resistivity | Magnetic permeability | Modulus of elasticity |
| Unit | - | °C | J/kg.K | W/mK | 10-6.K-1 | Ωmm2/m | at 0.80 kA/m DC or top AC |
MPa x 103 |
| Temperature (°C) | 4 | 20 | 20,500 | 20-200 20-400 20-600 20-800 20-1000 | 20 | 20 | 20 | |
| Value | 7.9 | 1420 | 500 | 15 19 | 15.5 17 17.5 18.5 19 | 0.85 | 1.05 | 195 |
Chemical composition of AISI 310 steel:
- Nickel: 19-22%
- Chromium: 24-26%
- Iron: 52-57%
- Other components (sulfur, phosphorus, carbon): less than 1% each
The high chromium and nickel content gives the alloy high heat resistance and oxidation resistance, making it suitable for use in aggressive environments.
The properties of AISI 310 alloy directly depend on its chemical composition, which affects the processing of the material. This steel is highly plastic, which makes it easy to form both hot and cold. It is important to note that for uniform heating of the material during forging, this process takes about 12 times longer for this alloy than for carbon steels.
AISI 310 steel and its analogues are used in different countries around the world. AISI 310 stainless steel is available in various rolled forms, including wire, sheet, profile, and strip, which expands its application and allows for the production of a wide range of products.
Due to its high resistance to oxidation, corrosion and high temperatures, this alloy can be used in various industries, including oil refining, mechanical engineering, and the chemical industry. This steel grade is ideal for the production of exhaust pipes in engines and gas turbine units, structural elements of pyrolysis plants, combustion chambers, steam boilers and other devices operated in warm conditions.
The analogue of AISI 310 is present on the post-Soviet market - steel 20X25H20C2, which is as close as possible to the American brand in chemical composition and technical characteristics.
AISI 310 analogues in other countries:
| Europe | 1.4841 |
| Germany | X15CrNiSi25-21 |
| Japan | SUS310 |
| Ukraine | 20Х25Н20C2 |
Standard dimensions of AISI 310 stainless steel sheet
| Steel brand | Domestic substitute | Material type | Surface | Thickness, mm | Width, mm |
| AISI 310, AISI 310S | 20x23n18 10x23n18 | cold rolled | 2B | 0.4-3.0 | 1000x2000 1250x2500 1500x3000 |
| hot rolled | 1D | 2-100 | 1000x2000 1250x2500 1500x3000 1500x6000 |
Mechanical properties
| AISI 310 | Tensile strength (σv), N/mm² | Yield strength (σ0.2), N/mm² | Relative elongation (σ), % | Brinell hardness (HB) | Yield strength (σ1.0), N/mm² | Rockwell Hardness (HRB) |
| Stand | ≥500 | ≥210 | ≥35 | - | ≥250 | - |
| Min | ≥515 | ≥205 | ≥40 | - | - | - |