1.4021, X20Cr13, AISI420 Martensitic Stainless Steel ( EN10088)
Similar Grade: 1.4021, X20Cr13, AISI420 
Shape: Round, Flat, Square.
Size Range:  
Steel-making Condition: EF, EF/EAF+LF+VD, EF/EAF+ESR
Delivery Condition:
Annealed , Quenched + Tempered

Surface Condition: 
Black, Grinded, Peeled, Rough turned, Polished

Features:

2.Immediate delivery
3.Premium quality
4.Reliable service
5.MOQ: 1 Ton
   
Chemical Composition:  
 
 
General properties:
corrosion resistance       low
mechanical properties      average
forgeability         poor
Weldability         with care
machinability        good
 
Mechnical Properties:

density (kg/dm3) 7.70 
electrical resistivity at 20 °C ( mm2/m) 0.60
magnetizability possible
thermal conductivity at 20 °C (W/m K) 30
specific heat capacity at 20 °C (J/kg K) 460 
thermal expansion (K-1) 20 - 100 °C: 10.5 x 10-6 
                           20 - 200 °C: 11.0 x 10-6 
                           20 - 300 °C: 11.5 x 10-6 
                           20 - 400 °C: 12.0 x 10-6 
Applications:
automotive industry 
petrochemical industry 
electronic equipment 
mechanical engineering
cutlery and blades
Product Description:
1.4021 can be hardened by holding at a temperature between 950 °C - 1050 °C followed by cooling in air or oil. The tempering temperature is dependent on the desired strength. Due to the precipitation of undesirable phases, the temperature range 400 °C to 600 °C should be avoided. Two heat treated conditions are usually specified, namely: QT700 (tempered between
650 °C and 750 °C) and QT800 (tempered between 600 °C and 700 °C). The number behind the designation QT relates to the minimum tensile strength