1. Key Properties
AISI/SAE 3315 Round Bars are case-hardening steels that offer excellent toughness and high fatigue resistance. This alloy steel grade is known for its good wear resistance after heat treatment and its ability to withstand high-stress conditions. AISI/SAE 3315 has excellent machinability, weldability, and hardenability, making it a top choice for applications requiring surface hardening without compromising core toughness.
2. Applications/Industries
Automotive (e.g., gears, shafts, crankshafts)
Industrial Machinery
Power Transmission Components (e.g., axles, spindles)
Bearings
Oil & Gas Equipment
Aerospace Components
3. Certifications/Standards
Meets ASTM A29 standards
Meets SAE 3315 specifications
ISO 9001 certified
4. Chemical Composition
Carbon (C): 0.13–0.18%
Manganese (Mn): 0.60–0.90%
Chromium (Cr): 0.80–1.10%
Nickel (Ni): 1.25–1.75%
Molybdenum (Mo): 0.15–0.25%
Phosphorus (P): ≤ 0.04%
Sulfur (S): ≤ 0.05%
5. Technical Specifications
Yield Strength: 600–750 MPa (depending on heat treatment)
Tensile Strength: 850–1000 MPa
Hardness: 220–280 HB (Brinell Hardness)