Hardox is wear-resistant steel plate manufactured by SSAB Oxelösund AB of Sweden.
【Characteristics】
Hardox is available in five types with differing characteristics.
Characterized by high hardness and high tensile strength (see below).
【Types 】
Steel type |
400 |
450 |
500 |
550 |
600 |
Thickness (t) |
6~120 |
3.2~8 |
6~80 |
30~50 |
8~40 |
Mechanical strength (N/mm) |
1250 |
1400 |
1550 |
1700 |
2000 |
Hardness |
HB ※1 |
400 |
450 |
500 |
550 |
600 |
HRC
※2 |
43 |
46 |
51 |
53 |
57 |
Impact value (at 40ºC)※3 |
45J |
40J |
30J |
30J |
20J |
*1 Brinell hardness
*2 Rockwell hardness
*3 Guideline for toughness. The higher the value, the greater the toughness.
【Comparison of wear-resistance of steel materials】 * Use material selection guidelines.
Steel type |
Abrasion rate |
Wear resistance |
Normal steel |
100% |
x1.0 |
45kg steel |
91% |
x1.11 |
80kg steel |
88% |
x1.14 |
HARDOX400 |
19% |
x5.26 |
HARDOX450 |
13% |
x7.89 |
HARDOX500 |
8% |
x12.5 |
HARDOX550 |
5% |
x20.0 |
HARDOX600 |
4% |
x25.0 |
|