Armox® 440T

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

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Thickness (inmm)	Hardness (HBW)	Yield strength R_p0.2 (min ksiMPa)	Tensile strength R_m (ksiMPa)	Elongation A₅ (min %)	Elongation A₅₀ (min %)
0.157 - 1.18104.0 - 30.0	420 - 480	1591100	181 - 2241250 - 1550	10	12
1.185 - 1.96830.1 - 50.0	420 - 480	1521050	181 - 2241250 - 1550	10	12
1.972 - 3.15050.1 - 80.0	420 - 480	1451000	181 - 2241250 - 1550	10	12

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Hardness
(HBW)

Yield strength R_p0.2
(min ksiMPa)

Tensile strength R_m
(ksiMPa)

Elongation A₅
(min %)

Elongation A₅₀
(min %)

Thickness
(inmm)

0.157 - 1.18104.0 - 30.0

Hardness
(HBW)

420 - 480

Yield strength R_p0.2
(min ksiMPa)

1591100

Tensile strength R_m
(ksiMPa)

181 - 2241250 - 1550

Elongation A₅
(min %)

10

Elongation A₅₀
(min %)

12

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Thickness
(inmm)

1.185 - 1.96830.1 - 50.0

Hardness
(HBW)

420 - 480

Yield strength R_p0.2
(min ksiMPa)

1521050

Tensile strength R_m
(ksiMPa)

181 - 2241250 - 1550

Elongation A₅
(min %)

10

Elongation A₅₀
(min %)

12

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Thickness
(inmm)

1.972 - 3.15050.1 - 80.0

Hardness
(HBW)

420 - 480

Yield strength R_p0.2
(min ksiMPa)

1451000

Tensile strength R_m
(ksiMPa)

181 - 2241250 - 1550

Elongation A₅
(min %)

10

Elongation A₅₀
(min %)

12

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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

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

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Min impact energy, transverse test,
Charpy V 0.393x0.393" test specimen ¹⁾

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)

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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

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Si^*)
(max %)

Mn^*)
(max %)

P
(max %)

S
(max %)

Cr^*)
(max %)

Ni^*)
(max %)

Mo^*)
(max %)

B^*)
(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

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

Tolerances

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

Thickness

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Thickness (inmm)	Tolerance (inmm)
0.157 - 0.5094.0 - 12.9	- 0.0 / + 0.0236- 0.0 / + 0.6
0.512 - 0.78713.0 - 20.0	- 0.0 / + 0.0315- 0.0 / + 0.8
0.791 - 1.57520.0 - 40.0	- 0.0 / + 0.0393- 0.0 / + 1.0
1.578 - 2.35840.1 - 59.9	- 0.0 / + 0.0551- 0.0 / + 1.4
2.362 - 3.15060.0 - 80.0	- 0.0 / + 0.0630- 0.0 / + 1.6

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Tolerance
(inmm)

Thickness
(inmm)

0.157 - 0.5094.0 - 12.9

Tolerance
(inmm)

- 0.0 / + 0.0236- 0.0 / + 0.6

Thickness
(inmm)

0.512 - 0.78713.0 - 20.0

Tolerance
(inmm)

- 0.0 / + 0.0315- 0.0 / + 0.8

Thickness
(inmm)

0.791 - 1.57520.0 - 40.0

Tolerance
(inmm)

- 0.0 / + 0.0393- 0.0 / + 1.0

Thickness
(inmm)

1.578 - 2.35840.1 - 59.9

Tolerance
(inmm)

- 0.0 / + 0.0551- 0.0 / + 1.4

Thickness
(inmm)

2.362 - 3.15060.0 - 80.0

Tolerance
(inmm)

- 0.0 / + 0.0630- 0.0 / + 1.6

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 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.

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General Product Description

Mechanical Properties

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Comparison

Mechanical Testing

Ultrasonic testing

Impact Properties

Select one parameter to compare

Comparison

Chemical Composition (heat analysis)

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Comparison

Tolerances

Thickness

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Comparison

Length and Width

Shape

Flatness

Surface Properties

Delivery Conditions