1.4418 Stainless Steel
All You Need to Know About Martensitic, Low Carbon Stainless Steel X4CrNiMo16-5-1, 1.4418, SIS2387
What is 1.4418 Stainless Steel Grade
The 1.4418-grade stainless steel is a low carbon martensitic stainless steel that offers good mechanical properties. Compared to many other martensitic stainless steels, the 1.4418 grade stainless steel has superior corrosion resistance. The stainless steel grade also demonstrates good weldability properties.
The 1.4418-grade stainless steel has the following properties:
- High strength
- High toughness
- High fatigue resistance
Why use 1.4418 Stainless Steel
Due to the corrosion resistance it shows, the 1.4418-grade stainless steel is suitable for use in slight to moderate corrosive media. It also shows high-abrasion corrosion resistance. This feature makes it a preferred choice for hydraulic and control system applications.
What is the chemical composition of 1.4418 stainless steel
The chemical composition of 1.4418 stainless steel is:
| 1.4418 steel chemical element | % present |
| Carbon (C) [Max] | 0.06% |
| Manganese (Mn) [Max] | 1.50% |
| Silicon (Si) [Max] | 0.70% |
| Chromium (Cr) [Max] | 15.0 to 17.0% |
| Nitrogen (N) | 0.20% |
| Molybdenum (Mo) [Max] | 0.80 to 1.50% |
| Nickel (Ni) [Max] | 4.0 to 6.0% |
| Phosphorus (P) [Max] | 0.040% |
| Sulphur (S) [Max] | 0.030% |
How to work with 1.4418 steel
| 1.4418 steel hot work and heat treatment temperature | ||
| Forging °C | Annealing °C | Welding °C |
| 1180 to 950 | 600 to 650 | 100 to 200 |
| Cooling in air | ||
1.4418 stainless steel applications
The main areas of applications of 1.4418 stainless steel include:
- Hydropower equipment
- Water turbine parts
- Shear pins
- Bolts
- Valves
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