ABS Grade AH40, DH40, EH40
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American Bureau of Shipping
ABS Grade AH40, DH40, EH40
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American Bureau of Shipping
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ABS Grade AH40, DH40, EH40
ABS Grade AH40, DH40, EH40
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General Product Description
ABS Grades AH40, DH40, and EH40 are higher-strength structural steels with a minimum specified yield strength of 57 ksi and specified minimum Charpy Vnotch impact toughness properties.
ApplicationsTypical applications include shipbuilding and mobile offshore drilling units and structures.
Available Dimensions
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| Grade | Product type | Thickness (inmm) |
Width 1) (inmm) |
Length 1) (inmm) |
|---|---|---|---|---|
| Grade AH40 | Plate | 0.1875 - 1.574.762 - 39.9 | 72 - 1201800 - 3050 | 240 - 10206100 - 25910 |
| Grade DH40 | Plate | 0.1875 - 1.574.762 - 39.9 | 72 - 1201800 - 3050 | 240 - 10206100 - 25910 |
| Grade EH40 | Plate | 0.1875 - 1.574.762 - 39.9 | 72 - 1201800 - 3050 | 240 - 10206100 - 25910 |
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Comparison
Grade
Grade AH40
Product type
Plate
Thickness
(inmm)
(inmm)
0.1875 - 1.574.762 - 39.9
Width 1)
(inmm)
(inmm)
72 - 1201800 - 3050
Length 1)
(inmm)
(inmm)
240 - 10206100 - 25910
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Grade
Grade DH40
Product type
Plate
Thickness
(inmm)
(inmm)
0.1875 - 1.574.762 - 39.9
Width 1)
(inmm)
(inmm)
72 - 1201800 - 3050
Length 1)
(inmm)
(inmm)
240 - 10206100 - 25910
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Grade
Grade EH40
Product type
Plate
Thickness
(inmm)
(inmm)
0.1875 - 1.574.762 - 39.9
Width 1)
(inmm)
(inmm)
72 - 1201800 - 3050
Length 1)
(inmm)
(inmm)
240 - 10206100 - 25910
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1) Please inquire for plate dimensions outside the noted range.
Mechanical Properties
Tensile testing is performed in the transverse direction.
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| Grade | Thickness (inmm) |
Yield strength (min ksi) |
Tensile strength (ksi) |
Elongation A5 1) (min %) |
|---|---|---|---|---|
| Grade AH40 | 0.1875 - 1.574.762 - 39.9 | 57 | 74 - 94 | 22 |
| Grade AH40 | 0.1875 - 1.574.762 - 39.9 | 57 | 74 - 94 | 22 |
| Grade EH40 | 0.1875 - 1.574.762 - 39.9 | 57 | 74 - 94 | 22 |
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Comparison
Grade
Grade AH40
Thickness
(inmm)
(inmm)
0.1875 - 1.574.762 - 39.9
Yield strength
(min ksi)
(min ksi)
57
Tensile strength
(ksi)
(ksi)
74 - 94
Elongation A5 1)
(min %)
(min %)
22
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Grade
Grade AH40
Thickness
(inmm)
(inmm)
0.1875 - 1.574.762 - 39.9
Yield strength
(min ksi)
(min ksi)
57
Tensile strength
(ksi)
(ksi)
74 - 94
Elongation A5 1)
(min %)
(min %)
22
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Grade
Grade EH40
Thickness
(inmm)
(inmm)
0.1875 - 1.574.762 - 39.9
Yield strength
(min ksi)
(min ksi)
57
Tensile strength
(ksi)
(ksi)
74 - 94
Elongation A5 1)
(min %)
(min %)
22
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1) See ABS Rules for elongation requirements for alternative tensile specimens.
Impact Properties
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| Grade | Thickness (inmm) |
Test temperature(°F) | Min Longitudinal Average Energy 1)(ft-lbs) | Min transverse average energy 1)(ft-lbs) |
|---|---|---|---|---|
| Grade A40 | 0.1875 - 1.574.762 - 39.9 | 32 | 29 | 19 |
| Grade DH40 | 0.1875 - 1.574.762 - 39.9 | -4 | 29 | 19 |
| Grade EH40 | 0.1875 - 1.574.762 - 39.9 | -40 | 29 | 19 |
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Comparison
Grade
Grade A40
Thickness
(inmm)
(inmm)
0.1875 - 1.574.762 - 39.9
Test temperature(°F)
32
Min Longitudinal Average Energy 1)(ft-lbs)
29
Min transverse average energy 1)(ft-lbs)
19
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Grade
Grade DH40
Thickness
(inmm)
(inmm)
0.1875 - 1.574.762 - 39.9
Test temperature(°F)
-4
Min Longitudinal Average Energy 1)(ft-lbs)
29
Min transverse average energy 1)(ft-lbs)
19
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Grade
Grade EH40
Thickness
(inmm)
(inmm)
0.1875 - 1.574.762 - 39.9
Test temperature(°F)
-40
Min Longitudinal Average Energy 1)(ft-lbs)
29
Min transverse average energy 1)(ft-lbs)
19
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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
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| Grade | Grade AH40 | Grade DH40 | Grade EH40 |
|---|---|---|---|
| Thickness (inmm) | 0.1875 - 1.574.762 - 39.9 | 0.1875 - 1.574.762 - 39.9 | 0.1875 - 1.574.762 - 39.9 |
| CEV 1) (max %) | 0.40 | 0.40 | 0.40 |
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Comparison
Grade
Thickness (inmm)
Grade AH40
0.1875 - 1.574.762 - 39.9
Grade DH40
0.1875 - 1.574.762 - 39.9
Grade EH40
0.1875 - 1.574.762 - 39.9
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Grade
CEV 1) (max %)
Grade AH40
0.40
Grade DH40
0.40
Grade EH40
0.40
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1) Carbon equivalent requirements for TMCP condition of supply only.
