Product Description

AISI 4340 is a commonly used alloy steel with high strength, high toughness, good wear resistance and corrosion resistance. Its moderate carbon content gives it good machinability and weldability. In addition, it also contains appropriate amounts of chromium, nickel and other elements, which further improves its performance. At the same time, its toughness and ductility are also quite good, and it can maintain good performance even in both high or low temperature environments. Due to the excellent physical and mechanical properties of 4340 steel, 4340 steel bars are also widely used in equipment manufacturing in corrosive environments such as petroleum, chemical industry, and ships.

Product parameters

Chemical Composition

Mechanical Behavior

Application scope

AISI 4340 alloy steel is mainly used for power transmission gears and shafts, aircraft landing gear and other structural parts.

FAQ

Q: Do you accept third-party inspection?

A: Yes, we absolutely accept it.

Q: Do you provide samples? Free or extra?

A: The cost of samples is calculated based on the value. Shipping fee is necessary.

Q: Do you have a large inventory of steel?

A: Yes, we have a large indoor warehouse with a total annual spot inventory of more than 200,000 tons.

Q: What is your delivery time and supply capacity?

A: The delivery time is usually within 15~28 working days, and we can supply about 10,000 tons per month.

Q: How to order?

A: Buyer sends inquiry-->Buyer gets quotation-->Order confirmation-->Buyer sends deposit-->Seller prepares goods-->Seller strictly inspects-->Buyer arranges balance payment-->Packaging and delivery.