ASTM A409/A409M Type 201 Introduce
ASTM A409/A409M Type 201 is a ferritic stainless steel used in a variety of industrial applications. It is well-known for its excellent thermal properties, including high strength, toughness and excellent corrosion resistance. These properties make it an ideal choice for many applications and make it well-suited for use in high temperature environments.
Smelting temperature:1492°C - 1838°C
Application:Corrosion resistant or high temperature resistant large diameter welded austenitic stainless steel tube
ASTM A409/A409M Type 201 Material Chemical Composition
The chemical composition of the ASTM A409/A409M Type 201 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | - | 1.0000 |
| Sulfur (S) | - | 0.0300 |
| PhOsphorus (P) | - | 0.0600 |
| Nickel (Ni) | 3.5000 | 5.5000 |
| Nitrogen (N) | - | 0.2500 |
| Manganese (Mn) | 5.5000 | 7.5000 |
| Chromium (Cr) | 16.0000 | 18.0000 |
| Carbon (C) | - | 0.1500 |
ASTM A409/A409M Type 201 Material Mechanical Properties
The mechanical properties of the ASTM A409/A409M Type 201 steel are as follows:
| YieldRp0.2 | ≤ 919 (MPa) |
| TeileRm | ≤ 968 (MPa) |
| ImpactKV/Ku | 42(J) |
| ElongationA | 44% |
| Reduction in cross section on fractureZ | 44% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 111 |
ASTM A409/A409M Type 201 Material Thermal Properties
The thermal performance parameters of the ASTM A409/A409M Type 201 steel are as follows:
| Temperature (°C) | 24 | 427 | 561 |
| Modulus of elasticity (GPa) | - | 755 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 31 |
| Thermal conductivity (W/m·°C) | - | 11.3 | 32.2 |
| Specific thermal capacity (J/kg·°C) | - | 322 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.22 | - | - |
| Deity (kg/dm³) | - | - | 444 |
| Poisson’s coefficient, ν | - | - | 123 |