QUARD 400/450/500/550
Quard 400 is a martensitic abrasion resistant steel with an average hardness of 400 HBW. Due to its versatility in terms of high toughness,good cold formability and excellent weldability, Quard 400 combines an outstanding work shop performance and a long lasting wear resistance.
Quard 450 is a martensitic abrasion resistant steels, with an average hardness of 450 HBW. The steel offers very high resistance to abrasive wear and impact granting a longer service life. The combination of very good cold forming properties and excellent weldability makes Quard 450 an optimal choice for most wear applications.
Quard 500 & 550 is a martensitic abrasion resistant steels, with an average hardness of 500 & 550 HBW. Its very high resistance to abrasive wear and impact makes it ideal where long service life is required. With the combination of superior hardness and strength, Quard 500 & 550 is an optimal choice for the recycling and mining industry.
Dimension Range
| Grade | QUARD 400 | QUARD 450 | QUARD 500 | QUARD 550 |
|---|---|---|---|---|
| Thickness (in mm) | 4 - 50 mm | 3,2 - 64 mm | 4 - 40 mm | 6 - 30 mm |
| Width (in mm) | 1500 - 3100 mm | 1500 - 3100 mm | 1500 - 3100 mm | 1500 - 3100 mm |
Hardness guarantee
| Grade | QUARD 400 | QUARD 450 | QUARD 500 | QUARD 550 |
|---|---|---|---|---|
| HBW = 370 - 430 | HBW = 420 - 480 | HBW = 470 - 530 | HBW = 520 - 580 |
Other mechanical properties (typical values)
| Grade | QUARD 400 | QUARD 450 | QUARD 500 | QUARD 550 |
|---|---|---|---|---|
| Charpy-V notch impact test | 40J (longitudinal at -40 °C) | 35 J (longitudinal at -40°C) | 30 J (longitudinal at -40°C) | - |
| Yield Strength (MPa) | 1160 | 1250 | 1500 | 1575 |
| Tensile Strength - Transverse - (MPa) | 1300 | 1400 | 1700 | 1750 |
| Elongation A5 (%) | 10 | 10 | 8 | 7 |
Chemical Composition (Ladle Analysis)
| Grade | Plate thickness range in mm | %C (Max) | %Si (Max) | %Mn (Max) | %P (Max) | %S (Max) | %Cr (Max) | %Ni (Max) | %Mo (Max) | B |
|---|---|---|---|---|---|---|---|---|---|---|
| QUARD 400 | 4 - 25,4 mm | 0.16 | 0.60 | 1.40 | 0.025 | 0.010 | 0.50 | 0.10 | 0.25 | 0.005 |
| 25,41 - 40 mm | 0.17 | 0.60 | 1.60 | 0.025 | 0.010 | 1.15 | 0.15 | 0.30 | 0.005 | |
| 40,01 - 50 mm | 0.17 | 0.60 | 1.60 | 0.025 | 0.010 | 1.30 | 0.50 | 0.50 | 0.005 | |
| QUARD 450 | 3,2- 20 mm | 0.20 | 0.60 | 1.40 | 0.025 | 0.010 | 0.20 | 0.10 | 0.25 | 0.005 |
| 20,1 - 40 mm | 0.21 | 0.60 | 1.60 | 0.025 | 0.010 | 0.75 | 0.10 | 0.30 | 0.005 | |
| 40,01 - 64 mm | 0.23 | 0.60 | 1.60 | 0.025 | 0.010 | 1.30 | 0.50 | 0.50 | 0.005 | |
| QUARD 500 | 4 - 20 mm | 0.28 | 0.80 | 1.60 | 0.025 | 0.010 | 1.00 | 1.00 | 0.50 | 0.005 |
| 20,01 - 40 mm | 0.30 | 0.80 | 1.60 | 0.025 | 0.010 | 1.00 | 1.00 | 0.50 | 0.005 | |
| QUARD 550 | 6 - 30 mm | 0.35 | 0.80 | 1.60 | 0.025 | 0.010 | 1.10 | 1.00 | 0.50 | 0.005 |
Market Area
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Disclaimer
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