Armox® 440T

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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 (mmin)	Hardness (HBW)	Yield strength R_p0.2 (min MPaksi)	Tensile strength R_m (MPaksi)	Elongation A₅ (min %)
4.0 - 30.00.157 - 1.1810	420 - 480	1100159	1250 - 1550181 - 224	10
30.1 - 50.01.185 - 1.968	420 - 480	1050152	1250 - 1550181 - 224	10
50.1 - 80.01.972 - 3.150	420 - 480	1000145	1250 - 1550181 - 224	10

Thickness
(mmin)

4.0 - 30.00.157 - 1.1810

Hardness
(HBW)

420 - 480

Yield strength R_p0.2
(min MPaksi)

1100159

Tensile strength R_m
(MPaksi)

1250 - 1550181 - 224

Elongation A₅
(min %)

Thickness
(mmin)

30.1 - 50.01.185 - 1.968

Hardness
(HBW)

420 - 480

Yield strength R_p0.2
(min MPaksi)

1050152

Tensile strength R_m
(MPaksi)

1250 - 1550181 - 224

Elongation A₅
(min %)

Thickness
(mmin)

50.1 - 80.01.972 - 3.150

Hardness
(HBW)

420 - 480

Yield strength R_p0.2
(min MPaksi)

1000145

Tensile strength R_m
(MPaksi)

1250 - 1550181 - 224

Elongation A₅
(min %)

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 6 mm.

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

Ultrasonic testing

According to EN 10160 Class E₃S₃.

Impact Properties

Thickness (mmin)	Min impact energy for transversal testing, Charpy V 10x10 mm test specimen ¹⁾
4.0 - 80.00.157 - 3.150	45 J / -40 °C33 ft-lbs / -40 °F

Thickness
(mmin)

4.0 - 80.00.157 - 3.150

Min impact energy for transversal testing,
Charpy V 10x10 mm test specimen ¹⁾

45 J / -40 °C33 ft-lbs / -40 °F

¹⁾ Average of three tests. Transverse to rolling direction. Single value min. 70% of specified average. For plate thicknesses under 12 mm sub-size Charpy-V specimen are used. The specified minimum value is then propotional to the specimen cross-section.

Chemical Composition (ladle analysis)

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

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

The steel is grain-refined. *⁾ Intentional alloying elements.

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.