Ramor® 550

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General Product Description

The ballistic protection steel with extra-high hardness.

Ramor 550 is a ballistic protection steel of extra-high hardness, available in thicknesses of 3‑15 mm (0.118‑0.591″) and hardnesses of 540‑600 HBW.

Ramor 550 is available as cut-to-length sheet in thicknesses of 3‑6 mm (0.118‑0.236″) and as plate in thicknesses of 6‑15 mm (0.236‑0.591″). Delivered in quenched condition, Ramor 550 is not intended for further heat treatment.

Mechanical Properties

Ramor 550

Thickness
(mmin)
3.0 - 15.01.2 - 5.91
Hardness
(HBW)
540 - 600

Chemical Composition (heat analysis)

C
(max %)
C
(max %)
0.36
Si
(max %)
0.70
Mn
(max %)
1.5
P
(max %)
0.015
S
(max %)
0.010
Cr
(max %)
1.50
Ni
(max %)
2.50
Mo
(max %)
0.80
B
(max %)
0.005

Tolerances

More details are given on www.ssab.com.

Thickness

Product Type
Product Type
Sheet
Thickness
(mmin)
3.00 - 4.001.18 - 1.57
Tolerance
(mm)
- 0.0 / + 0.36
Product Type
Product Type
Sheet
Thickness
(mmin)
4.01 - 5.001.58 - 1.97
Tolerance
(mm)
- 0.0 / + 0.40
Product Type
Product Type
Sheet
Thickness
(mmin)
5.01 - 6.001.97 - 2.36
Tolerance
(mm)
- 0.0 / + 0.42
Product Type
Product Type
Plate
Thickness
(mmin)
6.0 - 7.92.4 - 3.1
Tolerance
(mm)
- 0.0 / + 0.8
Product Type
Product Type
Plate
Thickness
(mmin)
8.0 - 14.93.1 - 5.87
Tolerance
(mm)
- 0.0 / + 1.0

Length and Width

Sheets are delivered with mill edges cut as standard.

  • Tolerances conform to EN 10 051 or to SSAB´s standard after agreement.

Plate delivered according to SSAB’s dimension program.

  • Tolerances conform to EN 10 029 or to SSAB’s standard after agreement.
  • Dimensional tolerances for plate with mill edge according to special agreement. 

Shape

Tolerances for plate according to EN 10 029. Tolerances for Sheet according to EN 10 051. 

Flatness

Product Type
Product Type
Sheet
1000 ruler
(mm)
6
Product Type
Product Type
Plate
1000 ruler
(mm)
6

Surface Properties

Delivery Conditions

Ramor is delivered in quenched condition.