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
(mmin)
8.00 - 16.000.315 - 0.630
Hardness
(HBW)
400 - 480
Yield strength Rp0.2
(min MPaksi)
1000145
Tensile strength Rm
(min MPaksi)
1150167
Elongation A5
(min %)
8

Impact Properties

Thickness
(mmin)
Thickness
(mmin)
8.00 - 16.000.315 - 0.630
Min impact energy for transversal testing,
Charpy V 10x10 mm test specimen 1)
20 J / -40 °C15 ft-lbs / -40 °F

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

Chemical Composition (ladle 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
(mmin)
8.00 - 14.90.315 - 0.587
Tolerance
(mmin)
- 0.0 / + 1.0- 0.0 / + 0.0394
Product Type
Product Type
Plate
Thickness
(mmin)
15.0 - 16.00.590 - 0.630
Tolerance
(mmin)
- 0.0 / + 1.1- 0.0 / + 0.0433

Length and Width

According to SSAB’s dimension program.

  • Tolerances conform to EN 10029 or to SSAB’s standard after agreement.
  • Dimensional tolerances for plate with mill edge according to special agreement. 

Shape

Tolerances according to EN 10029.

Flatness

Tolerances according to SSAB’s flatness tolerances which are more restrictive than EN 10029 Class N (steel type L). 

Surface Properties

According to EN 10163-2 Class B, Subclass 3.

Delivery Conditions

Ramor is delivered in quenched condition.