A131 DH36 shipbuilding steel sheets shall be normalized, control rolled, thermo-mechanical control processed, or quenched and tempered condition when as specified.
Grade DH36 under ASTM A131 standard is available in plates, sheets, profiles and bars intended primarily for ships construction field.
ASTM A131 structural steel for ships overs two categories: ordinary strength-Grades A, B, D, and E with a specified minimum yield point of 34 ksi, and higher strength- Grades AH, DH, EH and FH with a specified minimum yield point of 46 ksi, 51ksi or 57ksi.
A131 DH36 higher strength shipbuilding steel are avaialble with 100mm for plates and 50mm for profiles and bars.
A131 DH36 Steel Sheets Chemical Composition:
C: 0.18 max; Si: 0.10-0.50; Mn (Min): 0.90-1.60; P: 0.035max.; S: 0.035 max.; Cr: 0.20max.; Mo: 0.08max.; Ni: 0.40max.; Cu: 0.35max.; Cb: 0.02-0.05; V: 0.05-0.10.
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