1.7218 Alloy Engineering Steel
Everything You Need to Know About 25CrMo4, 708A25, 25CD4, 4130, 22ChM, 1.7218 Alloy Steel EN 1003-3 2006
1.7218 Alloy Steel Description
1.7218 alloy steel is classified as a structural steel for heat improvement. The 25CrMo4 alloy steel exhibits high ductility and good hardenability. The 1.7218 steel also has good weldability and strength properties. The steel is used in the production of working parts that function at temperatures as high as 450 to 530 °C as well.
1.7218 Alloy Steel Applications
The 1.7218 alloy steel has a good set of properties that makes it a suitable material to create various products and parts. It can be used in various applications. This includes:
- Steam pipes
- Toothed shafts
- Heavy-duty screws
- Control parts
- Levers
- Turbine rotors
- Flanges
- Welds for pipes
- Nuts
- Covers
1.7218 Alloy Steel Chemical Composition
The chemical composition of 1.7218 alloy steel is
| 1.7218 steel chemical element | % present |
|---|---|
| Carbon (C) [Max] | 0.22 to 0.29% |
| Manganese (Mn) [Max] | 0.60 to 0.90% |
| Silicon (Si) [Max] | 0.40% |
| Chromium (Cr) [Max] | 0.90 1.20% |
| Phosphorus (P) [Max] | 0.025% |
| Sulphur (S) [Max] | 0.020 to 0.040% |
| Molybdenum (Mo) [Max] | 0.15 to 0.30% |
1.7218 Alloy Steel Heat Treatment
| 1.7218 steel hot work and heat treatment temperature | ||||
|---|---|---|---|---|
| Hot Forming °C | Soft Annealing °C | Tempering °C | Normalising °C | Quenching °C |
| 1100 to 850 | 680 to 720 | 540 to 680 | 890 | 880 |
| Cooling by air | Cooling air | Oil or polymer | ||
1.7218 Alloy Steel Properties
Here are the properties of 1.7218 alloy steel:
- High ductility
- Weldable
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