ASTM A387 GRADE 22 CLASS 1 ASTM A387/A387M Boiler Steel Plate
vessel steel plate Product Introduction
The alloy is considered a low-alloy grade of steel due to its high chromium and molybdenum content. ASTM A387 Grade 22 Class 1 ASTM A387/A387M steel includes a variety of grades including 9Cr-1Mo and 11Cr-1Mo. These steel grades feature elevated levels of chromium to better suit pressure-containing application in comparison to standard structural steels. By providing a higher level of chromium, the alloy can resist oxidation and better resists oxidation at high temperatures.ASTM A387 Grade 22 Class 1 ASTM A387/A387M is a material-graded steel alloy used in the production of pressure vessels and boilers
Our company has steel products billets, steel products, hot-rolled sheets, cold-drawn sheets, seamless steel pipes, steel bars and other products. ASTM A387 Grade 22 Class 1 ASTM A387/A387M has a good reputation in the market, high-quality products, and thoughtful service in the steel industry. ASTM A387 Grade 22 Class 1 ASTM A387/A387M has complete specifications, and the products are widely used in aerospace, petrochemical, and construction projects, with low requirements for products, easy processing and low dimensional accuracy requirements. And provide cutting, bending, welding, drilling, and other processing services.
Application: Pressure vessel plate, alloy steel, chrome molybdenum.
Heat treated: 1892°C - 1466°C.
pressure vessel plate Product Details
ASTM A387 Grade 22 Class 1 ASTM A387/A387M Chemical Element
The alloy is also highly corrosion-resistant thanks to the chromium content of 0.5-9%. When exposed to high temperatures and corrosive chemical environments, the alloy maintains a high-level of performance.
ASTM A387 Grade 22 Class 1 ASTM A387/A387M is hot selling products of our company. Our ASTM A387 Grade 22 Class 1 ASTM A387/A387M chemical composition is controlled strictly with stipulation of standard ASTM A387/A387M.
Meanwhile, our advanced ASTM A387 Grade 22 Class 1 ASTM A387/A387M production line strives to control impurities to the minimum, so as to make ASTM A387 Grade 22 Class 1 ASTM A387/A387M play its best performance. Below is the proportion of main elements in ASTM A387 Grade 22 Class 1 ASTM A387/A387M:
| Element | Min | Max | Similar |
|---|---|---|---|
| Mo | 0.9000 | 1.1000 | - |
| Cr | 2.0000 | 2.5000 | - |
| P | - | 0.0350 | - |
| S | - | 0.0350 | - |
| Mn | 0.3000 | 0.6000 | - |
| Si | - | 0.5000 | - |
| C | 0.0500 | 0.1500 | - |
ASTM A387 Grade 22 Class 1 ASTM A387/A387M Mechanical Properties
What is the chemical composition of ASTM A387 Grade 22 Class 1 ASTM A387/A387M steel? For ASTM A387 Grade 22 Class 1 ASTM A387/A387M Hardness, ASTM A387 Grade 22 Class 1 ASTM A387/A387M steel tensile strength, yield strength,elongation, please see the following table.
| Yield Rp0.2 (MPa) |
Tensile Rm (MPa) |
Impact KV/Ku (J) |
Elongation A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 645 (≥) | 723 (≥) | 12 | 34 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 324 |
ASTM A387 Grade 22 Class 1 ASTM A387/A387M Physical Properties
Physical properties of ASTM A387 Grade 22 Class 1 ASTM A387/A387M are mainly indicated by modulus of elasticity, thermal conductivity, specific thermal capacity, electrical resistance value, coefficient of thermal expansion, density, poisson's ratio, etc.
| Temperature (°C) |
Modulus of elasticity (GPa) |
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) |
Specific thermal capacity (J/kg·°C) |
Specific electrical resistivity (Ω mm²/m) |
Density (kg/dm³) |
Poisson's coefficient, ν |
|---|---|---|---|---|---|---|---|
| 13 | - | - | 0.44 | - | |||
| 849 | 156 | - | 44.3 | 111 | - | ||
| 863 | - | 12 | 42.2 | 332 | 233 |
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