MARS 190
a quenched and high tempered armor steel
MARS 190 has undergone examination for use in vehicle structures such as main battle tanks and armored personnel carriers, as well as for stationary protection applications like buildings, sentry boxes, and observation posts. Additionally, it has been studied for its effectiveness against various types of targets. The adaptability of MARS 190 is noteworthy, as it seamlessly combines ease of workability even in thicker dimensions with favorable ballistic properties against a wide range of ammunitions.
Standards
| France | NF A 36-800-CLA |
| Germany | TL 2350 – 0000 Hardness G, H, K, L |
| UK | Stan 95-24 Class 1 and 2, Stan 95-13 |
| US | MIL DTL 12560 CL 1.2.3 |
Chemical analysis – Weight %
| C | S | P | Si | Mn | Ni | Cr | Mo | V |
| ≤ .30 | ≤ .005 | ≤ .012 | ≤ .4 | ≤ 1.20 | ≤ 1.8 | ≤ 1.5 | ≤ .6 | ≤ .10 |
Mechanical properties
| Plate thickness (t) | hardness range (HB) | KCV -40 ° Transverse to rolling direction | ||
| mm | Inch | J | ft.lbs | |
| ≤ 12 | ≤ 0.47 | 352 – 388 | ≥ 20 | ≥ 15 |
| 12 < t ≤ 35 | 0.47 < t ≤ 1.38 | 331 – 375 | ≥ 24 | ≥ 18 |
| 35 < t ≤ 60 | 1.38 < t ≤2.36 | 302 – 341 | ≥ 32 | ≥ 24 |
| 60 < t ≤ 85 | 2.36 < t ≤ 3.30 | 262 – 331 | ≥ 36 | ≥ 26 |
| 85 < t ≤120 | 3.30 < t ≤ 4. 72 | 248 – 285 | ≥ 56 | ≥ 41 |
| 120 < t ≤150 | 4. 72 < t ≤ 6 | 241 – 277 | ≥ 64 | ≥ 47 |
Heat treatment
MARS 190 is a quenched and high tempered armour steel (≥500 °C / 930 ° F)
Cutting
Standard thermal cutting techniques (oxygas, plasma, laser) can be used without any special precautions (pre or post-heating) for thicknesses up to 75 mm (3”)
Forming
MARS 190 can be cold bent – The rough cut edges have to be ground prior to cold forming
Hot forming can be performed according to process or ; nevertheless, consult us before because temperatures vary according to thickness.
- Heating at 900/950 °C (1650/1740 ° F), mandatoryto make a new quality treatment including quenching + tempering.
- Heating at 450/550 °C (840/1020 ° F) – air coolingafter forming.
