Armox® 440T

Download data sheet

General Product Description

Blast protection plate.

Armox® 440T combines excellent penetration and shock resistance. It offers vehicle designers new ways to increase protection using lighter weight designs.

Benefits of using Armox® 440T include: 

  • Superior workshop properties
  • Optimized solutions
  • Perfect hardness/toughness balance, for combined penetration and blast protection
  • Expertise in ballistic protection from SSAB

Armox® 440T is not intended for further heat treatment.

Mechanical Properties

Thickness
(inmm)
Thickness
(inmm)
0.157 - 1.18104.0 - 30.0
Hardness
(HBW)
420 - 480
Yield strength Rp0.2
(min ksiMPa)
1591100
Tensile strength Rm
(ksiMPa)
181 - 2241250 - 1550
Elongation A5
(min %)
10
Thickness
(inmm)
Thickness
(inmm)
1.185 - 1.96830.1 - 50.0
Hardness
(HBW)
420 - 480
Yield strength Rp0.2
(min ksiMPa)
1521050
Tensile strength Rm
(ksiMPa)
181 - 2241250 - 1550
Elongation A5
(min %)
10
Thickness
(inmm)
Thickness
(inmm)
1.972 - 3.15050.1 - 80.0
Hardness
(HBW)
420 - 480
Yield strength Rp0.2
(min ksiMPa)
1451000
Tensile strength Rm
(ksiMPa)
181 - 2241250 - 1550
Elongation A5
(min %)
10

Mechanical Testing

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

Charpy impact test according to EN ISO 148 on each heat and thickness from  0.236". 

Tensile test according to EN ISO 6892 on each heat and thickness. 

Ultrasonic testing

According to EN 10160 Class E3S3.

Impact Properties

Thickness
(inmm)
Thickness
(inmm)
0.157 - 3.1504.0 - 80.0
Min impact energy, transverse test,
Charpy V 0.393x0.393" test specimen 1)
33 ft-lbs / -40 °F45 J / -40 °C

1) Average of three tests. Transverse to rolling direction. Single value min. 70% of specified average. For plate thicknesses under 0.472" sub-size Charpy-V specimen are used. The specified minimum value is then propotional to the specimen cross-section.

Chemical Composition (heat analysis)

C *)
(max %)
C *)
(max %)
0.21
Si *)
(max %)
0.50
Mn*)
(max %)
1.20
P
(max %)
0.010
S
(max %)
0.003
Cr*)
(max %)
1.0
Ni*)
(max %)
2.50
Mo*)
(max %)
0.70
B*)
(max %)
0.005

Tolerances

More details are given in SSAB brochure Armox® Guarantees or on www.ssab.com.

Thickness

Tolerances according to Armox® Thickness Guarantees.

Armox® Guarantees meet the requirements of EN 10029 Class C, but offers narrower tolerances.

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 Armox® flatness guarantees, 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

The delivery condition is QT (Quenched and Tempered).

Delivery requirements can be found in SSAB’s brochure Armox® Guarantees or www.ssab.com.