Ramor® 450

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General Product Description

Combines ballistic properties with impact toughness.

Ramor® 450 is a medium-hard protection plate combining ballistic properties with impact toughness, at 8.0 ‑ 16.0 mm (0.315‑0.630″) thick and 400‑480 HBW. Ramor® 450 is not intended for further heat treatment.

Mechanical Properties

Ramor® 450

Thickness
(inmm)
0.315 - 0.6308.00 - 16.00
Hardness
(HBW)
400 - 480
Yield strength Rp0.2
(min ksiMPa)
1451000
Tensile strength Rm
(min ksiMPa)
1671150
Elongation A5
(min %)
8

Mechanical Testing

Brinell hardness test according to EN ISO 6506-1 on each heat treatment individual/coil.

Hardness is measured on a milled surface 0.012 - 0.079" below plate surface.  

Charpy impact test according to EN ISO 148, 1 test/20 ton. 

Tensile test according to EN ISO 6892 on each plate and thickness <0.783".

Impact Properties

Thickness
(inmm)
Thickness
(inmm)
0.315 - 0.6308.00 - 16.00
Min impact energy, transverse test,
Charpy V 0.393x0.393" test specimen 1)
15 ft-lbs / -40 °F20 J / -40 °C

1) Impact testing transverse to rolling direction, average value of three tests. Single value min. 70% of specified average.

Chemical Composition (heat analysis)

C
(max %)
C
(max %)
0.25
Si
(max %)
0.70
Mn
(max %)
1.50
P
(max %)
0.015
S
(max %)
0.010
Cr
(max %)
1.00
Ni
(max %)
2.0
Mo
(max %)
0.70
B
(max %)
0.005

The steel is grain-refined. Phosphorous and sulphur are not intentionally alloying elements.

Tolerances

More details are given on www.ssab.com.

Thickness

Product Type
Product Type
Plate
Thickness
(inmm)
0.315 - 0.5878.00 - 14.9
Tolerance
(inmm)
- 0.0 / + 0.0394- 0.0 / + 1.0
Product Type
Product Type
Plate
Thickness
(inmm)
0.590 - 0.63015.0 - 16.0
Tolerance
(inmm)
- 0.0 / + 0.0433- 0.0 / + 1.1

Length and Width

Shape

Tolerances according to EN 10029.

Flatness

Surface Properties

According to EN 10163-2 Class B Subclass 3.

Delivery Conditions

Ramor is delivered in quenched condition.