General Product Description
Armour steel with high toughness, able to provide penetration and shock resistance together (Mine, Handmade Explosive and similar).
Protection 440T; it is supplied in order thickness of 4.00 – 20.00 mm and hardness range of 420-480 HBW.
Ultrasonic Testing
It can be done in accordance with EN ISO 10160. Contact Miilux Sales, at the order stage, for the application class.
Heat Treatment Condition
Quenched and Tempered.
Protection 440T is not suitable for the secondary heat treatments by the user. In case it is heated above 190°C after receipt from Miilux, no warranties are provided.
Tolerances
“EN 10029” or “EN 10051” standards are applied in dimensional tolerances.
“EN 10029” Class C Tolerance is guaranteed for thickness.
Thickness tolerance application is according to Narrowed Miilux Thickness Tolerance, which is more restrictive than “EN 10029” Class C.
EN 10029 Class N, Steel Type H tolerances are guaranteed for the planarity.
Surface Condition
EN 10163-2 (Class B, Subclass 3) standard is guaranteed for the surface defects.
The surface of the Steel Plates is sandblasted according to ISO 8501-1 Sa 2½ quality.
Unless otherwise specified, shop primer is applied to Miilux products, which has been specially developed in order to provide very high welding and cutting speed after the sandblasting, with very low welding porosity and very low burning rate in the reverse area.
The shop primer protects the structure against atmospheric corrosion during the storage. It is applied at a thickness of 15-25 microns (these values are specified for a smooth test panel).
The paint type, which is used, has a performance suitable for the processes of welding and cutting.
Marking is done with Punch.
Marking is done with paint.
Product Certificate
Certification is performed according to the EN 10204 norm.
Test results are provided in English and/or Turkish in accordance with EN 10204-3.1.
For EN-10204-3.2 test certificates, at the time of order, it should be specified.
Dimensions and Delivery Conditions
Miilux products are supplied with a maximum width of 2500 mm and a maximum length of 8000 mm. Special size requests should be discussed at the ordering stage.
Balistik Özellikler
Miilux Protection 440T Ballistic Performance meets MIL-DTL-12560 Class 4 requirements.
Miilux Sales team should be contacted, at the order stage, for order-specific test requests.
Narrowed Miilux Thickness Tolerances
| Sheet Thickness (mm) | Tolerances (mm) |
|---|---|
4 – 8 |
- 0.0 + 0.60* |
| 6 – 7.99 | - 0.0 + 0.80** |
| 8 – 14.99 | - 0.0 + 0.90** |
| 15 – 20.00 | - 0.0 + 1.00** |
Chemical Composition Compound (Ladle Analysis)
| Steel Quality | Steel Type | Thickness (mm) | C | Si | Mn | P | S | Cr | Ni | Mo | B | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Miilux Protection 440T |
High Hardness Armor Steel (HHA) |
4.00-20.00 |
0.25 |
0.50 |
1.20 |
0.015 |
0.005 |
1.00 | 2.00 | 0.60 |
0.003 |
Typical Ballistic Features
| Steel Quality | Thickness (mm) | *Yield Strength (Rp) 0,2 N/mm² |
*Tensile Strength (Rm) N/mm² |
*Elongation (A5%) | Darbe Charpy- V -40°C Joule (Min.) |
Hardness Ranges (HBW) |
**CE | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Miilux Protection 440T |
4.00-20.00 |
1200 |
1300-1500 |
10 |
30 | 420-480 |
0.74 |
*They are the typical values
**CE = C + [Mn/6] + [(Cr + Mo + V) /5] + [(Ni + Cu) /15]
Brinell hardness test is applied on every armour steel in accordance with EN ISO 6506-1 principles. If the thickness of the hardness measurement area is thinner than 4.75 mm, the 5/750 HBW measurement method is used. For other thicknesses, the 10/3000 HBW method is used.
The hardness tests are performed on the machined surface at a depth of 0.50 – 1.00 mm from the armour steel surface.
Charpy V-Notch Impact Test is applied in perpendicular and parallel directions to the rolling direction in all castings and thickness* in accordance with EN ISO 148-1 principles.
For products thinner than 11.00 mm nominal thickness, sub-size samples are used. The determined minimum impact value is then proportional to the test specimen’s cross-sectional area. (*in order thickness of 6.00 mm and thicker armour steel)
Order-specific test requests should be discussed with Miilux Sales team at the order stage.
Sales and Marketing
Our Sales and Marketing team will assist you with your order requests and pre-sales services.
E-mail: satis@miilux.com.tr
Customer Technical Services
Our Customer Technical Services team will assist you in case you have any questions regarding product features, testing and usage areas.
E-mail: mth@miilux.com.tr
