1. Key Properties
17CrNiMo6 and 18CrNiMo7-6 are alloy steels known for their excellent hardenability, high wear resistance, and outstanding toughness after heat treatment. These steels provide superior mechanical properties, making them ideal for applications requiring high-strength and high-fatigue resistance. The hot rolled (HR) form ensures better surface quality and dimensional tolerance for further processing.
2. Applications/Industries
Automotive (e.g., gears, shafts, camshafts)
Industrial Machinery
Bearings and Bushings
Power Transmission Components (e.g., axles, spindles)
Heavy Equipment
Aerospace Components
Oil & Gas Equipment
3. Certifications/Standards
Meets relevant DIN, ASTM, and SAE standards
ISO 9001 certified
4. Chemical Composition
17CrNiMo6:
Carbon (C): 0.17–0.22%
Manganese (Mn): 0.60–0.90%
Chromium (Cr): 1.30–1.60%
Nickel (Ni): 1.30–1.60%
Molybdenum (Mo): 0.15–0.30%
Phosphorus (P): ≤ 0.035%
Sulfur (S): ≤ 0.035%
18CrNiMo7-6:
Carbon (C): 0.18–0.23%
Manganese (Mn): 0.60–0.90%
Chromium (Cr): 1.40–1.70%
Nickel (Ni): 1.40–1.70%
Molybdenum (Mo): 0.15–0.30%
Phosphorus (P): ≤ 0.035%
Sulfur (S): ≤ 0.035%
5. Technical Specifications
Yield Strength: 600–900 MPa (depending on heat treatment)
Tensile Strength: 800–1000 MPa
Hardness: 200–250 HB (Brinell Hardness)