General Product Description
Protection 280T; it is an armour steel with low hardness and high toughness, resistant to explosion and shock waves. It is preferred in the designs of armoured vehicles such as battle tanks and armoured personnel carriers.
Heat Treatment Condition
Quenched and Tempered.
Protection 280T is not suitable for the secondary heat treatments by the user. In case it is heated above 600°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.
Ultrasonic Testing
It can be done in accordance with EN ISO 10160. Contact Miilux Sales, at the order stage, for the application class.
Ballistic Features
Miilux Protection 280T Ballistic Performance meets “MIL-DTL-12560 Class 2” requirements.
Miilux Sales team should be contacted, at the order stage, for order-specific test requests. Each customer is obliged to verify the requested plate thickness, to evaluate the suitability of the information provided to the request and the potential risks according to the area of use.
Miilux Yuksek Mukavemetli Celik Uretim A.Ş. reserves the right to change product groups and tolerances without prior notification. You can contact our Customer Technical Services Team for information about different tests.
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 – 25.40 | - 0.0 + 1.00** |
Other thicknesses are accepted subject to negotiation.
* Sheet from Coil (Without the Edge-Cut)
** Sheet (With the Edge-Cut)"
Chemical Composition Compound (Ladle Analysis)
| Steel Quality | Steel Type | Thickness (mm) | C | Si | Mn | P | S | Cr | Ni | Mo | B | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Miilux Protection 280T |
Rolled Homogenous Armour (RHA) |
4.00-25.40 |
0.25 |
0.40 |
1.10 |
0.010 |
0.005 |
0.80 | 1.80 | 0.70 |
0.003 |
Typical Mechanical Features
| Product 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 Max. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Miilux Protection 280T |
4.00-25.40 |
800 |
900-1100 |
13 |
60 | 270-330 |
0.80 |
*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.
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
