Protection steel plate, which combines Excellent Properties in Ballistic Resistance + High Strength + High Toughness + High Hardness range of an average of 400-600 HBW and named as Armor 400, Armor 440, Armor 500, Armor 550 and Armor 600.
"Different Testing Norms and Conditions on customer request only."
High Protection Steel at present is being manufactured and supplied in the following range:
Special Thickness, Width, Length on request Basis.
High Protection Steel is Micro Alloyed Steels and delivered as quenched and tempered condition.
Hardness Guarantee 400 HBW-600 HBW (HBW is performed 1 - 2 mm below the plate sur face)
HPS plates are being supplied in Black conditions mainly and other condition is Red Oxide OR zinc silicate painted condition which is suitable for cutting by any methods and rust protected.
HPS receives its properties by quenching and when applicable by subsequent tempering.
The properties of the delivery condition cannot be retained after exposure at service or preheating temperatures above 200 °C. It is not intended for any further heat treatment. preheating temperatures above 200 °C. It is not intended for any further heat treatment.
UT is applied to secure the plate from discontinuities like inclusions, cracks and porosity. In thickness from 8 mm and up, all plates are UT tested and controlled .
To obtain optimal work shop productivity when processing H P S , it is essential to use the recommended procedures and tools given below.
Plasma and flame cutting can be performed without the need for preheating in thicknesses up to 10 mm, provided the ambient temperature is above 0 °C. Subsequent to cutting, let the cut parts slowly cool down to room temperature. A slow cooling rate will reduce the risk of cut edge cracking (never accelerate the cooling of the parts).
Care should be taken during all bending due to the high strength of the plate and the high bending force necessary. The minimum recommended R/t ratio when bending of HPS is given in the table below:
| Thickness (MM) | Transverse to Rolling (R/t) | Longitudinal to Rolling (R/T) | Transverse Width(W/t) | Long Width (W/t) |
|---|---|---|---|---|
| T<8mm | 5 | 5 | 10 | 12 |
8mm| 6 |
6 |
12 |
14 |
|
| T>15mm | 7 | 8 | 16 | 18 |
R=Recommended punch radius (mm), t=Plate thickness (mm), W- Die opening width (mm) (bending angle ≤ 90°)
HPS has a very good weldability, granted by the optimal carbon equivalent of the steel. It can be welded using any of the conventional welding methods, both as manual or automatic.
Welding is recommended to be performed at ambient temperature not lower than +15°C. Subsequent to welding, let the welded parts slowly cool down to room temperature (never accelerate the cooling process of the weld).
If welding using a heat input of 1.7 kJ/mm, preheating is not required in single plate thickness up to 10 mm. The inter pass temperature used should not exceed 200 °C.
Soft weld consumables, giving low hydrogen weld deposits (<= 5 ml/100g), are recommended. The consumable strength should be as soft as the design allows.
HPS is delivered with a unique combination of excellent flatness, tight thickness tolerances and superior surface finish. Due to the homogeneous properties and narrow thickness tolerances of HPS, variations in spring back are kept at a low level. Grinding of flame cut or a sheared edge in the bending area is recommended to further prevent cracking during bending.
Impact from Bullet of AK-47
| STD | Thickness | C | Si | Mn | P | S | Cr | Ti | B | Brinell Hardness | Impact Test |
|---|---|---|---|---|---|---|---|---|---|---|---|
| HPS-500 | 5mm-25mm | 0.30 max | 0.55 max | 1.60 max | 0.030 max | 0.030 max | 0.80 max | 0.020 max | 0.0040 max | 475-530BHN | If asked by client |
| MILL NAME | COUNTRY | QT-ARMOR PLATES | |||
|---|---|---|---|---|---|
| SSAB | SWEDEN | ARMOX 400 | ARMOX 440 | ARMOX 500 | ARMOX 600 |
| RUUKKI | FINLAND | RAMOR 400 | RAMOR 440 | RAMOR 500 | RAMOR 550 |
| NLMK | BELGIUM | QUARDIAN 400 | QUARDIAN 500 | QUARDIAN 550 | QUARDIAN 600 |
| MIILUX | TURKEY | PROTECTION 440 | PROTECTION 280 | PROTECTION 440 | PROTECTION 500 |
| ACRONI | SLOVENIA | PROTEC 400 | PROTEC 400 | PROTEC 500 | PROTEC 550 |
