20CrNi3A round steel spot direct sales 20CrNi3A special steel price

It has good machinability, medium cold deformation plasticity and weldability. It is sensitive to the formation of white spots and tends to be temper brittle when tempered at high temperatures. 3. Used as gears, shafts, worms, bolts, pins, etc. that work under high load conditions. 3 Alloy Structural Steel
3 Alloy Structural Steel
●Chemical composition:
Carbon: .~
Silicon: .~
Manganese .3~
Sulfur:
Phosphorus:
Chromium:.~
Nickel.~3
●Mechanical properties:
Conditional yield strength. :
Reduction of area ():< br/> Impact toughness value (/):
Hardness: ~
Heat treatment specifications
Heat treatment specifications: ~℃ oil or warm water quenching + ~℃ tempering, oil or water cooling.
Metallographic structure:) Quenching and tempering treatment: tempered sorbite) After carburizing, quenching and low temperature tempering: tempered martensite
Material specifications
Carburizing quenched and tempered steel< br/> Carburized quenched and tempered steel
Carburized quenched and tempered steel
Carburized quenched and tempered steel
Carburized quenched and tempered steel
Carburized quenched and tempered steel
Carburized Quenched and tempered steel
Carburized quenched and tempered steel
Carburized quenched and tempered steel
Carburized quenched and tempered steel
Carburized quenched and tempered steel
Carburized quenched and tempered steel
Carburizing and quenched and tempered steel