ABS Grade AH36, DH36, EH36 Z25
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ABS Grades AH36, DH36, and EH36 Z25 are "Z" quality, higher-strength structural steels with a minimum specified yield strength of 51 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%.
ApplicationsTypical applications include shipbuilding and mobile offshore drilling units and structural details for which greater resistance to lamellar tearing is desired
Grade | Product type | Thickness (in) |
Width 1) (in) |
Length 1) (in) |
---|---|---|---|---|
Grade AH36Z25 | Plate | 0.1875 - 5.90 | 72 - 129.9 | 79 - 590 |
Grade DH36Z25 | Plate | 0.1875 - 5.90 | 72 - 129.9 | 79 - 590 |
Grade EH36Z25 | Plate | 0.1875 - 5.90 | 72 - 129.9 | 79 - 590 |
1) Please inquire for plate dimensions outside the noted range.
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 | Thickness (in) |
Yield strength (min ksi) |
Tensile strength (ksi) |
Elongation A5 1) (min %) |
Reduction of area, average (min %) |
Reduction of area (min %) |
---|---|---|---|---|---|---|
Grade AH36Z25 | 0.1875 - 5.90 | 51 | 71 - 90 | 22 | 25 | 15 |
Grade DH36Z25 | 0.1875 - 5.90 | 51 | 71 - 90 | 22 | 25 | 15 |
Grade EH36Z25 | 0.1875 - 5.90 | 51 | 71 - 90 | 22 | 25 | 15 |
1) See ABS Rules for elongation requirements for alternative tensile specimens.
Grade | Thickness (in) |
Test temperature(°F) | Min Longitudinal Average Energy 1)(ft-lbs) | Min transverse average energy 1)(ft-lbs) |
---|---|---|---|---|
AH36Z25 | 0.1875 - 2.00 | 32 | 25 | 17 |
AH36Z25 | 2.001 - 2.80 | 32 | 30 | 20 |
AH36Z25 | 2.801 - 4.00 | 32 | 37 | 25 |
AH36Z25 | 4.001 - 5.90 | 32 | 37 | 25 |
DH36Z25 | 0.1875 - 2.00 | -4 | 25 | 17 |
DH36Z25 | 2.001 - 2.80 | -4 | 30 | 20 |
DH36Z25 | 2.801 - 4.00 | -4 | 37 | 25 |
DH36Z25 | 4.001 - 5.90 | -4 | 37 | 25 |
EH36Z25 | 0.1875 - 2.00 | -40 | 25 | 17 |
EH36Z25 | 2.001 - 2.80 | -40 | 30 | 20 |
EH36Z25 | 2.801 - 4.00 | -40 | 37 | 25 |
EH36Z25 | 4.001 - 5.90 | -40 | 37 | 25 |
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.
Grade | AH36 | DH36 | EH36 |
---|---|---|---|
Thickness (in) | 0.1875 - 1.57 | 0.1875 - 1.57 | 0.1875 - 1.57 |
CEV 1) (max %) | 0.38 | 0.38 | 0.38 |
1) Carbon equivalent requirements for TMCP condition of supply only.