Properties

Mechanical Properties

The values shown for the mechanical properties of HR FB590 are for test pieces taken parallel to the rolling direction unless otherwise stated.
 

  EN 10338: HDT580F FB590 HR Typical
Yield strength Rp0,2 1 (N/mm²) 440 - 600 490 530 2
Tensile strength R (N/mm²) ≥ 580 595 600 2
Elongation % > 15 20 18 2
1. Lower yield strength or 0.2 % proof stress applies.
2. These mechanical property values are quoted for the transverse rolling direction.
Hole expansion coefficient values can be supplied (although not as part of the production release test) – please contact us for details.
Elongation after fracture A uses test piece length L0 = 80 mm
 

Chemical composition

Tata Steel supplies the following cast analysis with maximum values in weight percentages unless shown otherwise:
 

    EN10338: HDT580F FB590 HR
C Max. 0.18 0.18
Mn Max. 2.0 2.0
Si Max. 0.5 0.5
P Max. 0.05 0.05
S Max. 0.010 0.010
Altot   0.015 - 2.0 0.015 - 2.0
Cr+Mo Max. 1.0 1.0
Nb+Ti Max. 0.15 0.15
V Max. 0.15 0.15
B Max. 0.01 0.01