Armour Steel 550 HBW Manufacturer & Supplier
A harder armour grade for higher protection levels or reduced areal density. The gain in hardness is paid for in formability and weldability, so it is normally specified as flat or lightly formed panels and appliqué kits.
UNS: MIL-DTL-46100 class · 550 HBW | Category: Armour & Ballistic Steel
Size Range
Outer Diameter: 4.0 mm to 20 mm thick · up to 3000 mm wide
Chemical Composition (%)
| C | Mn | Cr | Ni | Mo |
|---|---|---|---|---|
| 0.35 max | 1.50 max | 1.50 max | 2.00 max | 0.70 max |
Mechanical Properties
- Hardness
- 530-580 HBW
- Tensile Strength
- 1800 MPa typical
- Yield Strength
- 1400 MPa typical
- Impact
- 15 J at -40 °C typical
Applicable Standards
- MIL-DTL-46100
- MIL-DTL-12560
- STANAG 4569
- EN 1522
- EN 10204 3.1
Applications
- Higher protection level armour packages
- Appliqué and spall liner backing plate
- Vault doors and strong-room walls
- Ammunition magazine and container plate
- Shooting gallery and range targets
Industries Served
- Armoured Vehicles
- Homeland Security
- Defence MRO
- Ordnance & Ammunition
- Heavy Engineering
- General Engineering
Equivalent Grades
- MIL-DTL-46100
- MIL-DTL-46100
- 550 HBW armour class
- 550 HBW armour class
- MIL-DTL-12560 Class 2
- MIL-DTL-12560 Class 2