HS450 Wear Plate
Provides superior hardness to toughness ratio. HS450 is liquid-quenched and tempered and through-hardened. The result is a plate with excellent abrasion resistance and high impact resistance. The outstanding wear characteristics can be attributed to the balanced chemistry and very fine distribution of Chromium, Boron, Titanium and Molybdenum. The resulting carbides reinforce the plate structure and provide uniform through-hardness.
HS450 can be formed and machined, but special steps must be taken. Please contact us for details.
HS450 is available in thicknesses from 1/4” to 4”
HS450 up to 1″ can be cut by gas, abrasive water jet, laser, or plasma after preheating to 250 degrees (F).. For thicknesses greater than 1“, the plate must be pre-heated to 300 degrees (F) before cutting. Plasma is recommended. Shearing is not recommended.
|
Chemistry
|
Max %
|
|
C
|
0.27
|
|
Mn
|
1.00
|
|
P
|
0.025
|
|
S
|
0.010
|
| Si | 0.40 |
| Ni | 0.70 |
| B | 0.005 |
| Cu | 0.35 |
|
Ti
|
0.10
|
|
Mo
|
0.30
|
|
Cr
|
1.75
|
Mechanical Properties:
|
Hardness
|
420 to 490 BHN
|
|
Yield Strength
|
180 – 190 ksi
|
|
Tensile Strength
|
225 – 235 ksi
|
|
Elongation
|
8 – 12%
|
Welding Procedures:
Preheating to 250 degrees (F) is recommended. E7018 or E8018 electrode rod or wire meeting AWS specifications.. Maximum preheat should not exceed 400 degrees (F). Do not quench welds.
