Sheet Steel 1.5529 / 27MnB5
General Characteristics
Steel 1.5529 (27MnB5) is a boron-alloyed structural steel with high strength, wear resistance, and excellent hardenability. It is used in the production of components subjected to high mechanical loads and wear.
Chemical Composition (%)
The main elements in the composition of 1.5529 steel:
- Carbon (C): 0.24 – 0.30
- Manganese (Mn): 1.10 – 1.40
- Silicon (Si): 0.15 – 0.35
- Boron (B): 0.0008 – 0.0050
- Chromium (Cr): 0.15 – 0.35
- Phosphorus (P): ≤ 0.025
- Sulfur (S): ≤ 0.010
Mechanical Properties
- Hardness after heat treatment: 55-62 HRC
- Tensile strength: up to 1500 MPa
- Yield strength: up to 1200 MPa
- High impact toughness and resistance to abrasive wear
Key Advantages
✅ High strength and wear resistance ✅ Excellent hardenability due to boron content ✅ Good machinability and weldability ✅ Optimal structure for components operating under load
Applications
🔹 Production of automotive industry parts (springs, suspensions, frames) 🔹 Manufacturing of armored plates and protective structures 🔹 Components for agricultural machinery 🔹 Production of machine-building elements operating in harsh conditions 🔹 Industrial components requiring high hardness and wear resistance
Sheet steel delivery forms 1.5529 / 27MnB5
| Steel Grade EN | Steel Grade DIN | Supplied Dimensions (mm) | ||
| Thickness (mm) | Width (mm) | Length (mm) | ||
| 27MnB5 |
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