General Product Description
Miilux Wear Resistant Steels, which offer Innovative Design Solutions in wear parts of mining machines, damper bodies, bulldozer blades, Crushers, excavators, chute-feeders and similar wear parts, are used against friction and wear, providing a higher lifetime compared to traditional materials.
Since Miilux 450 edge-to-edge hardening technology is used, homogeneous hardness is provided in the whole part in component part production. In addition to increasing the load capacity, it reduces the body weight by allowing the use of thinner materials. It shows positive cutting and welding behavior in the production.
Miilux 450; it is supplied in order thickness of 4.00-60.00 mm and hardness range of 370-460 HBW.
Heat Treatment Condition
Quenched
Quenched and Tempered
*It is subject to negotiation.
Dimensions and Delivery Conditions
Miilux products are available in a thickness range of 4.00-60.00 mm, with a maximum width of 2500 mm and a maximum length of 8000 mm. Other sizes are subject to agreement.
Miilux products are also available as ready-to-install component parts upon the customer request.
Ultrasonic Testing
It can be conducted in accordance with EN ISO 10160.
For application class, contact Miilux Sales Team at the order stage.
Narrowed Miilux Thickness Tolerances
| Sheet Thickness (mm) | Tolerances (mm) |
|---|---|
| 4 – 8 | - 0,35 + 0,35* |
| 6 – 7,99 | - 0,40 + 0,80** |
| 8 – 14,99 | - 0,50 + 0,90** |
| 15 – 24,99 | - 0,60 + 1,00** |
| 25 - 50 | - 0,60 + 1,30** |
| 50,01 - 79,99 | - 0,60 + 1,70** |
| 80 - 150 | - 0,60 + 2,10** |
Other thicknesses are accepted subject to negotiation.
* Sheet from Coil (Without the Edge-Cut)
** Sheet (With the Edge-Cut)
Maximum Chemical Composition Compound (%) Ladle Analysis
| Product Quality | Thickness (mm) | C | Si | Mn | P | S | Cr | Ni | Mo | B | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Miilux 450 |
4,00≤-≤60,00 |
0,26 |
0,70 | 1,70 |
0,025 |
0,01 | 1,30 |
0.80 | 0,50 |
0,005 | ||||||||||
Typical Mechanical Features and Carbon Equivalent
| 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) |
**CEV | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Miilux 450 |
4,00≤-≤60,00 mm | 1100 | 1350 | 8 | 20 | 400-480 | 0,63 | |||||||||||||
*They are the typical values
**CEV= 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.
Hardness tests are performed at a depth of 0.50 – 1.00 mm from the steel surface, on the machined 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.
Processing
Miilux products can be machined using high speed tool steels (HSS) with the appropriate combination of machining tool speed and feed rate, resulting in a satisfactory service life.
Cold Forming
Sharp transition angles should be avoided as much as possible when cold forming the Miilux products. In addition, the importance of the condition of the equipment used in the operations, the operation plan and good workshop practices should be taken into the consideration. The Cold Forming limits table is given below.
| Product | Sheet Thickness (mm) | Air bending < 90° Press radius / Plate thickness (r/t) (Bend direction in rolling direction) | Air bending - Die Opening / Sheet thickness (W/t) | Air bending <90° Press radius/ Plate thickness (r/t) (Bending direction in rolling direction) | ||
|---|---|---|---|---|---|---|
| Transversal | Longitudinally | Transversal | Longitudinally | |||
Miilux® 450 |
4-20 |
4,0 |
5,0 |
11,0 |
13,0 |
-15,0 |
