Properties

Properties


Mechanical properties

The values shown for the mechanical properties in the table below are for test pieces taken parallel to the rolling direction.

As delivered Grade CR 22MnB5
Guaranteed
CR 22MnB5
Typical
Yield strength1 Rp0.2 N/mm² ≥ 300 340 - 440
Tensile strength Rm N/mm² 500 - 580 500 - 580
Elongation % ≥ 20 > 21
r-value   - 0.90 - 1.0
n-value   - > 0.150
 
 
 
 

 

Hot formed Grade CR 22MnB5
Guaranteed
CR 22MnB5
Typical
Yield strength 1 Rp0.2 N/mm² 1000 - 1250 1025 - 1100
Tensile strength Rm N/mm² 1300 - 1600 1420 - 1520
Elongation % ≥ 5 5 - 7  
1. Yield strength refers to the 0.2% proof strength for the product.
Elongation after fraction A uses test piece length L0 = 80 mm.
 

Chemical composition

The table below shows the chemical composition to the draft EN 10338: 2015 (for dual phase steel) and EN 10083-3: 2006 (for hot forming steel) specifications.

    CR 22MnB5
Guaranteed
CR 22MnB5
Typical
  Grade
C Max. 0.23 0.22
Mn Max. 1.3 1.2
P Max. 0.02 0.01
S Max. 0.010 0.005
Si Max. 0.3 0.24
Altot   0.02 - 0.06 0.04
Cr + Mo 1 Max. 0.3 0.2
Nb + Ti 2 Max. 0.04 0.03
V Max. - -
B Max. 0.005 0.003
1. Refers to Cr max for CR 22MnB5.
2. Refers to Ti max for CR 22MnB5
All values are in weight%.