- 4817 E. 355th St Willoughby, OH 44094
- Info@AmericanSpecialtyMetals.com
- 440-951-7600
4140HT (Heat Treated) Alloy Steel is a versatile chromium-molybdenum steel that has been quenched and tempered to enhance its mechanical properties. Known for its strength, toughness, and wear resistance, 4140HT is commonly used in demanding applications across automotive, oil & gas, tooling, and heavy equipment industries. The heat treatment process gives this steel a fine balance between ductility and durability, making it an ideal choice for high-stress parts.
4140HT steel exhibits excellent mechanical characteristics, such as:
High Tensile Strength: Typically ranges from 150,000 to 160,000 PSI, making it ideal for components exposed to heavy loads.
Good Hardness: Achieves Rockwell C hardness levels between 28-32 after heat treatment.
Superior Toughness: Maintains structural integrity under impact and torsional stress.
Fatigue and Wear Resistance: Suitable for parts that undergo repeated or cyclic loads.
4140HT is engineered for applications where strength and toughness are critical. Common uses include:
Tool & Die Components: Ideal for punches, dies, and forming tools due to its hardness and machinability.
Automotive Parts: Used in axles, crankshafts, gears, and connecting rods.
Oil and Gas Industry: Employed in drill collars, tool joints, and downhole components.
General Industrial Equipment: Perfect for shafts, spindles, and couplings exposed to harsh operating conditions.
If you’re looking for a reliable, high-performance steel that holds up in demanding environments, 4140HT is a top choice. Its balanced properties reduce the risk of failure, improve lifespan, and lower long-term maintenance costs. Whether you’re manufacturing dies, building power transmission components, or constructing critical machinery parts, 4140HT delivers trusted performance.
At American Specialty Metals, we supply high-quality, cut-to-size 4140HT alloy steel tailored to your project needs. Whether you’re working with pre-hardened flat bars, round bars, or custom blanks for demanding applications, we deliver precision-cut materials that meet tight tolerances and high-performance standards.
440-951-7600
