API 2Y Grade 60 Steel Sheet Metal
Products Description
API 2Y Grade 60 Offshore Structural Steel is a quenched and tempered structural steel having intermediate-strength typically used in the welded construction of offshore structures. API 2Y Grade 60 steel plate has a minimum yield strength of 60 ksi [414 MPa] and a minimum, mid-thickness, transverse Charpy V-notch impact toughness of 35 ft-lbf [48 J] at -40°F [-40°C].
Applications
API 2Y Grade 60 weldable structural steel plate is intended primarilyfor use in offshore structures in critical portions that must exhibit good impact toughness and resistance to plastic fatigue loading and lamellar tearing. The primary use of API 2Y Grade 60 is in tubular joints, stiffened plate construction and other intersections where portions of the plates will be subjected to tension in the through-thickness (Z) direction.
Tolerances
Thickness, width, and length tolerances for API 2Y Grade 60 marine plate are in accordance with the requirements of ASTM A6. The flatness tolerance for as- supplied product is ½ ASTM A6.
Weldability
Welding of API 2Y Grade 60 steel plate for offshore structure shall be performed in accosteel plate for offshore structure sode(s). Special welding consumables and welding procedures may be needed to meet specific requirements for a given application. Low hydrogen practices are strongly recommended, including the removal of surface moisture. For additional welding information, please contact your SSAB representative.
Supplementary Requirements
By agreement between the purchaser and plate manufacturer, the following Supplementary Requirements may be specified on the purchase order: S1 (Ultrasonic Examination), S2 (Notch Toughness Test at Lower Temperature), S3 (Additional Tension Test), S4 (Through-Thickness [Z-Direction] Testing), S5 (Low Sulfur Steel for Improved Through-Thickness Properties), S7 (Low Nitrogen Content for Improved Notch Toughness in Strain-Aged Condition), S8 (Strain-Aged Charpy V-Notch Impact Tests) inquire up to 1.500" thickness , S9 (SPWHT) inquire, S10 (Hardness testing) inquire, and S12 (Notch Toughness Using Drop Weight) inquire, S13 (Surface Quality) inquire and S14 (Thickness Tolerance) inquire.
API 2Y Gr.60 Weldable Steel Chemical CompositionWeldable Steel Chemical Composition
| Main chemical elements composition of API 2YGr60 steel plate | ||||||
| C | Si | Mn | P | S | Cr | Mo |
| 0.16 | 0.05-0.50 | 1.15-1.60 | 0.03 | 0.01 | 0.25 | 0.15 |
| Nb | V | Ti | Ni | Al(tot) | N | |
| 0.03 | - | 0.003-0.02 | 0.75 | 0.02-0.06 | 0.012 | |
API 2Y Gr.60 Low Alloy Steel Material Mechanical Property
| Thickness (mm) | ||
| API 2YGr60 steel plate | ≤ 25 | > 25 |
| Yield strength (Mpa) | 414-621 | 414-586 |
| Tensile strength (≥Mpa) | 517 | |
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