1. Key Properties
AISI/SAE 8620 Hot Rolled Round Bar is a low-alloy steel that provides excellent case hardening properties. It offers good strength, toughness, and wear resistance after heat treatment, making it suitable for high-stress applications. This steel grade is well-known for its machinability, weldability, and ability to achieve a hardened surface without losing its core toughness.
2. Applications/Industries
Automotive (e.g., gears, crankshafts, axles)
Industrial Machinery
Bearings and Bushings
Heavy Equipment
Power Transmission Components
Agricultural Machinery
3. Certifications/Standards
Meets ASTM A29 standards
Meets SAE 8620 specifications
ISO 9001 certified
4. Chemical Composition
Carbon (C): 0.18–0.23%
Manganese (Mn): 0.60–0.90%
Chromium (Cr): 0.40–0.60%
Nickel (Ni): 0.30–0.60%
Molybdenum (Mo): 0.15–0.25%
Phosphorus (P): ≤ 0.04%
Sulfur (S): ≤ 0.05%
5. Technical Specifications
Yield Strength: 415–550 MPa (depending on heat treatment)
Tensile Strength: 655–850 MPa
Hardness: 180–250 HB (Brinell Hardness)