Ssab HARDOX 400 Manual

Cutting methods
HARDOX wear plate can very well be cut
using both cold and thermal cutting methods.
The cold methods are abrasive water jet cut-
ting, shearing, sawing or abrasive grinding,
while thermal methods are oxy-fuel, plasma
and laser cutting.
Table 1
Cutting method
Abrasive water-jet cutting
Laser cutting
Plasma cutting
Gas cutting
Diagram 1
1
This leaflet contains general suggestions and calculation models. SSAB Oxelösund AB does hereby expressly exclude any liability whatsoever for
their suitability for individual applications. It is the responsibilty of the user of the manual to adapt the recommendations contained herein to the
requirements of individual applications.
Cutting of HARDOX wear plate
Oxygen fuel cutting of HARDOX wear plate
is as simple as cutting of regular Mild Steel.
When cutting of thicker HARDOX plates special
attention is needed. For thick and hard plates the
risk of developing cut edge cracks increases. By
following the recommendations and guidelines
given below cut edge cracking and component
softening can be prevented.
General features for different cutting methods
Cutting speed
8 –150 mm / m in
600 – 2200 mm / m in
1200 – 6000 mm / m in
150 – 700 mm / m in
Thickness range for different cutting methods
10
Plate thickness [mm]
Abrasive
water jet
cutting
Kerf HAZ
1– 3 mm 0 mm
< 1 mm 0,4 – 3 mm
2– 4 mm 2– 5 mm
2– 5 mm 4 –10 mm
1.5 kW
3.0 kW
4.0 kW
100 A
200 A
600 A
100
Dim. tolerance
± 0,2 mm
± 0,2 mm
± 1,0 mm
± 2,0 mm
CO Laser
2
Plasma
Oxy-fuel
1000
1000