18Cr2Ni4WA military steel 18Cr2Ni4WA round steel

Brand: Standard:
It is a high-strength medium alloy carburized steel. To prevent the chemical and austenite content from exceeding the standard, high-temperature tempering after carburizing, ~℃ carburizing, ~tempering, and cryogenic treatment can be used. The hardness after oil quenching is about 3. Surface carburizing is necessary if the hardness reaches 3. .
Commonly used alloy carburized steel has high strength, toughness and good hardenability. It can also be used without carburization but quenched and tempered. It is generally used for larger cross-sections, higher loads and good toughness, notch Important parts with low sensitivity.
Chemical composition provides alloy structural steel
Carbon: .3～
Silicon: .～
Manganese .3～
Sulfur: Allowable residual content
Phosphorus: Allowable residual content
Chromium: .3～
Nickel.～
Copper: Allowable residual content
Tungsten: .～
Mechanical properties Tensile strength:
Yield strength round steel
Elongation ():
Reduction of area ():
Impact energy:
Impact toughness value (/):
Hardness:
Sample size: The sample blank size is []
Heat treatment specifications and metallographic structure
Heat treatment specifications: quenching: first ℃, second time ℃, air cooling and tempering ℃, water cooling, air cooling .
Delivery status
Delivery in heat treatment (normalizing, annealing or high temperature tempering) or non-heat treatment status, the delivery status should be specified in the contract.
Sales unit: Shanghai Tengzhong Metal Materials Co., Ltd.
Corporate fax:
Sales hotline: -Contact person: Ms. Lin
Telephone: