When engineering projects demand components that can withstand extreme wear, surface friction, and high structural loads, standard carbon steel falls short. At Milano Special Steel,
, we are the leading DIN 1.8509 steel supplier in Gurugram, offering premium-grade nitriding steel engineered for maximum surface hardness and exceptional core toughness.
Whether you are fabricating high-precision automotive components or heavy industrial machinery, our meticulously sourced DIN 1.8509 (41CrAlMo7) steel provides the reliability your structural applications demand.
What is DIN 1.8509 Steel? (41CrAlMo7 / En41B)
DIN 1.8509 is a high-quality chromium-aluminum-molybdenum alloying steel primarily known for its exceptional suitability for nitriding. The addition of aluminum reacts during the nitriding process to form an incredibly hard, wear-resistant surface layer, while the molybdenum ensures the core retains its high tensile strength and impact toughness.
Key Material Properties:
- Extreme Surface Hardness: Achieves up to 1000 HV after nitriding, making it highly resistant to abrasive wear.
- Excellent Core Toughness: Retains substantial structural strength under cyclic and dynamic loads.
- High Fatigue Strength: Resists micro-cracking and structural degradation in high-friction environments.
- Dimensional Stability: Minimal distortion during the heat-treatment and nitriding process compared to standard case-hardening steels.
Technical Specifications & Chemical Composition
As a quality-first steel stockholder in Delhi-NCR, we ensure all our DIN 1.8509 materials comply strictly with international standards.
Typical Chemical Analysis (%)
| Carbon (C) | Chromium (Cr) | Aluminum (Al) | Molybdenum (Mo) | Manganese (Mn) | Silicon (Si) |
| 0.38 – 0.45 | 1.50 – 1.80 | 0.80 – 1.20 | 0.20 – 0.35 | 0.40 – 0.70 | 0.15 – 0.40 |
Mechanical Properties (In Quenched & Tempered Condition)
- Tensile Strength: 850 – 1050
- Yield Strength:
- Elongation:
Critical Structural & Engineering Applications
DIN 1.8509 is the backbone of high-wear mechanical engineering. Our clients in Gurugram and IMT Manesar utilize this versatile grade for:
- Plastic & Rubber Processing: Extrusion screws, injection molding barrels, and wear-resistant dies.
- Automotive Engineering: High-performance crankshafts, camshafts, gudgeon pins, and steering gears.
- Heavy Machinery: Heavy-duty gears, pinions, structural shafts, and industrial valve components.
- Aerospace & Defence: Precision structural parts requiring a balance of low weight and extreme surface durability.
Why Choose Us as Your DIN 1.8509 Steel Partner in Gurugram?
1. Ready Stock & Custom Cutting Services
We maintain a robust inventory of DIN 1.8509 in various forms—including round bars, flat blocks, and customized plates. Our facility is equipped with high-speed band saws to provide precise, block-cutting and custom sizing to minimize your machining allowances.
2. 100% Traceability and Material Certification
Quality assurance is non-negotiable. Every batch of 41CrAlMo7 steel we supply is accompanied by original Mill Test Certificates (MTC), ensuring absolute transparency regarding chemical composition, ultrasonic testing, and mechanical properties.
3. Seamless Supply Chain Across NCR Hubs
Strategically located to serve the industrial corridors of Haryana, we provide rapid, just-in-time delivery to Gurugram, IMT Manesar, Faridabad, Dharuhera, Bawal, and Delhi. Keep your production lines moving without the bottleneck of material delays.
Applications of DIN 1.8509 Steel
DIN 1.8509 steel is widely used in:
- Structural engineering components
- Heavy machinery parts
- Construction frameworks
- Automotive industry applications
- Industrial equipment manufacturing
- Load-bearing mechanical systems
Benefits of DIN 1.8509 Steel
Using DIN 1.8509 steel provides:
- Enhanced structural strength
- Improved durability and reliability
- Reduced maintenance costs
- Better performance under stress
- Cost-effective industrial production
DIN 1.8509 Steel Supplier
A trusted supplier in Delhi offers:
- Certified quality steel materials
- Custom sizes and specifications
- Consistent mechanical properties
- Competitive pricing
- Timely delivery for industrial projects
Industries Using DIN 1.8509 Steel
This steel grade is commonly used in:
- Construction industry
- Automotive manufacturing
- Heavy engineering sector
- Fabrication workshops
- Industrial machinery production
Conclusion
DIN 1.8509 steel is an ideal choice for engineering and structural applications requiring strength, toughness, and long-term reliability. A reliable supplier in Delhi ensures high-quality material that supports efficient manufacturing and durable industrial performance across multiple sectors.
