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

	Thickness (mmin)	Hardness (HBW)	Yield strength R_p0.2 (min MPaksi)	Tensile strength R_m (min MPaksi)	Elongation A₅ (min %)
Ramor® 450	8.00 - 16.000.315 - 0.630	400 - 480	1000145	1150167	8

Ramor® 450

Thickness
(mmin)

8.00 - 16.000.315 - 0.630

Hardness
(HBW)

400 - 480

Yield strength R_p0.2
(min MPaksi)

1000145

Tensile strength R_m
(min MPaksi)

1150167

Elongation A₅
(min %)

Mechanical Testing

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

Hardness is measured on a milled surface 0.3 - 2.0 mm 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 <19.9 mm.

Impact Properties

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

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

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

Product Type

Plate

Thickness
(mmin)

8.00 - 14.90.315 - 0.587

Tolerance
(mmin)

- 0.0 / + 1.0- 0.0 / + 0.0394

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

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.