Heat Treating 4340 Alloy Steel

Heat treated quenched and tempered to high strength or annealed for ease of machining and subsequent heat treatment.

Heat treating 4340 alloy steel.

Aisi sae 4340 alloy steel 4340 is a nickel chromium molybdenum alloy steel known for its toughness and its ability to attain high strengths in the heat treated condition. Regarded industry wide for its toughness 4340 supplies high strength in the heat treated condition while still maintaining excellent fatigue strength over time. Flame or induction hardening. Aisi 4340 alloy steel is forged at 427 to 1233 c 1800 to 2250 f.

Aisi 4340 is a heat treatable low alloy steel containing nickel chromium and molybdenum. For technical drawings and 3 d models click on a part number. Aisi 4340 alloy steel is heat treated at 830 c 1525 f followed by quenching in oil. Normalizing annealing hardening tempering spheroidization stress relief etc.

4340 heat treat normalizing. Aisi 4340 alloy steel is heat treated at 830 c 1525 f followed by quenching in oil. 4340 alloy steel applications. Heat to 845 to 900 c 1550 to 1650 f and hold for a period of time which depends on the thickness of the section.

4340 heat treated hot rolled cold finished. Download certificates from activity after your order ships. Use 4340 alloy steel for power transmission and structural applications that involve extreme impact heat and wear. Aisi 4340 is a nickel chromium molybdenum alloy steel specification widely used in the oil and gas sectors.

Alloy steel 4340 heat treatment including. The inclusion of nickel improves hardenability. It is a nickel chromium molybdenum medium carbon alloy steel with deep hardenability. Premium aircraft quality is intended for.

As a quality grade alloy steel it offers toughness and high strength in the heat treated condition with good fatigue strength. Aisi 4340 alloy steel aisi 4340 steel stockholders and suppliers delivering to the whole of the uk. 4340 has been used typically for parts requiring a through hardening capability up to 3 5 inches 89 mm in nominal thickness at time of heat treatment and subject to rigid magnetic particle inspection standards but usage is not limited to such applications. Atlas 4340 is a nominally 1 8 percent nickel chromium molybdenum low alloy steel of high hardenability with high strength and toughness in relatively large sections achieved with a quench and temper heat treatment.

4340 steel heat treatment. Pacific 4340 is available in two conditions. It has high ductility. Certificates with a traceable lot number are available for these products.

Commercial and military aircraft automotive systems forged hydraulic and other machine tool applications forged steel crankshafts. It can be through hardened in large sections.