ABS Grade AH32, DH32, EH32 Z25

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General Product Description

ABS Grades AH32, DH32, and EH32 Z25 are "Z" quality, higher-strength structural steels with a minimum specified yield strength of 46 ksi and specified minimum Charpy V-notch impact toughness properties. The Z25 quality steel has a minimum specified average value for reduction of area in through- thickness tensile testing of 25%.

Applications

Typical applications include shipbuilding and mobile offshore drilling units and structural details for which greater resistance to lamellar tearing is desired.

Available Dimensions

Grade
Grade
Grade AH32Z25
Product type
Plate
Thickness
(inmm)
0.1875 - 5.904.762 - 150
Width
(inmm)
72 - 129.91800 - 3299
Length
(inmm)
79 - 5902000 - 15000
Grade
Grade
Grade DH32Z25
Product type
Plate
Thickness
(inmm)
0.1875 - 5.904.762 - 150
Width
(inmm)
72 - 129.91800 - 3299
Length
(inmm)
79 - 5902000 - 15000
Grade
Grade
Grade EH32Z25
Product type
Plate
Thickness
(inmm)
0.1875 - 5.904.762 - 150
Width
(inmm)
72 - 129.91800 - 3299
Length
(inmm)
79 - 5902000 - 15000
Thickness: Inquire for plate thickness less than 0.75 in.

Mechanical Properties

Tensile testing is performed in the transverse direction. When "Z" quality steel is specified, through-thickness tension testing is performed in accordance with ABS Rules.

Grade
Grade
Grade AH32Z25
Thickness
(inmm)
0.1875 - 5.904.762 - 150
Yield strength
(min ksi)
46
Tensile strength
(ksi)
64 - 85
Elongation A5 1)
(min %)
22
Reduction of area, average
(min %)
25
Reduction of area
(min %)
15
Grade
Grade
Grade DH32Z25
Thickness
(inmm)
0.1875 - 5.904.762 - 150
Yield strength
(min ksi)
46
Tensile strength
(ksi)
64 - 85
Elongation A5 1)
(min %)
22
Reduction of area, average
(min %)
25
Reduction of area
(min %)
15
Grade
Grade
Grade EH32Z25
Thickness
(inmm)
0.1875 - 5.904.762 - 150
Yield strength
(min ksi)
46
Tensile strength
(ksi)
64 - 85
Elongation A5 1)
(min %)
22
Reduction of area, average
(min %)
25
Reduction of area
(min %)
15

1) See ABS Rules for elongation requirements for alternative tensile specimens.

Impact Properties

Grade
Grade
AH32Z25
Thickness
(inmm)
0.1875 - 2.004.762 - 50.8
Test temperature
(°F)
32
Min Longitudinal Average Energy 1)
(ft-lbs)
23
Min transverse average energy 1)
(ft-lbs)
16
Grade
Grade
AH32Z25
Thickness
(inmm)
2.01 - 2.8051.1 - 71.1
Test temperature
(°F)
32
Min Longitudinal Average Energy 1)
(ft-lbs)
28
Min transverse average energy 1)
(ft-lbs)
19
Grade
Grade
AH32Z25
Thickness
(inmm)
2.81 - 4.0071.4 - 102
Test temperature
(°F)
32
Min Longitudinal Average Energy 1)
(ft-lbs)
34
Min transverse average energy 1)
(ft-lbs)
23
Grade
Grade
AH32Z25
Thickness
(inmm)
4.01 - 5.90102 - 150
Test temperature
(°F)
32
Min Longitudinal Average Energy 1)
(ft-lbs)
34
Min transverse average energy 1)
(ft-lbs)
23
Grade
Grade
DH32Z25
Thickness
(inmm)
0.1875 - 2.004.762 - 50.8
Test temperature
(°F)
-4
Min Longitudinal Average Energy 1)
(ft-lbs)
23
Min transverse average energy 1)
(ft-lbs)
16
Grade
Grade
DH32Z25
Thickness
(inmm)
2.01 - 2.8051.1 - 71.1
Test temperature
(°F)
-4
Min Longitudinal Average Energy 1)
(ft-lbs)
28
Min transverse average energy 1)
(ft-lbs)
19
Grade
Grade
DH32Z25
Thickness
(inmm)
2.81 - 4.0071.4 - 102
Test temperature
(°F)
-4
Min Longitudinal Average Energy 1)
(ft-lbs)
34
Min transverse average energy 1)
(ft-lbs)
23
Grade
Grade
DH32Z25
Thickness
(inmm)
4.01 - 5.90102 - 150
Test temperature
(°F)
-4
Min Longitudinal Average Energy 1)
(ft-lbs)
34
Min transverse average energy 1)
(ft-lbs)
23
Grade
Grade
EH32Z25
Thickness
(inmm)
0.1875 - 2.004.762 - 50.8
Test temperature
(°F)
-40
Min Longitudinal Average Energy 1)
(ft-lbs)
23
Min transverse average energy 1)
(ft-lbs)
16
Grade
Grade
EH32Z25
Thickness
(inmm)
2.01 - 2.8051.1 - 71.1
Test temperature
(°F)
-40
Min Longitudinal Average Energy 1)
(ft-lbs)
28
Min transverse average energy 1)
(ft-lbs)
19
Grade
Grade
EH32Z25
Thickness
(inmm)
2.81 - 4.0071.4 - 102
Test temperature
(°F)
-40
Min Longitudinal Average Energy 1)
(ft-lbs)
34
Min transverse average energy 1)
(ft-lbs)
23
Grade
Grade
EH32Z25
Thickness
(inmm)
4.01 - 5.90102 - 150
Test temperature
(°F)
-40
Min Longitudinal Average Energy 1)
(ft-lbs)
34
Min transverse average energy 1)
(ft-lbs)
23

1) Specimen orientation at the option of the manufacturer unless otherwise specified in the order.

No more than one value below the specified miniminum average energy but no less than 70% of the specfied minimum average energy value.

Minimum average energy for full-size specimens. Refer to ABS Rules for sub-size specimen energy requirements.

Carbon Equivalent

Grade
Grade
Thickness (inmm)
AH32
0.1875 - 1.574.762 - 39.9
DH32
0.1875 - 1.574.762 - 39.9
EH32
0.1875 - 1.574.762 - 39.9
Grade
Grade
CEV 1) (max %)
AH32
0.36
DH32
0.36
EH32
0.36

1) Carbon equivalent requirements for TMCP condition of supply only.

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