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Ship Hull Steel ABS Grade A, B, D and E Plate
The normal strength steel grades for hull construction are defined as mild steel with yield strength equal to or in excess of 235MPa. The general requirements apply to steel plates not exceeding 50mm in thickness. Greater thicknesses are subject to special consideration. Four grades are specified, namely A, B, D and E. Although these grades have the same tensile strength, they are characterised by an increasing degree of toughness.
Steel making
Steel is supplied from the basic oxygen furnaces using clean internal scrap and hot metal. All Ship Hull Steel ABS Grade A, B, D and E Plate steel is desulphurised to maintain a high degree of cleanliness and is made fully killed and fine-grained from continuously cast slabs. Full shrouding techniques and automatic mould level control are applied to ensure superior internal and surface quality.
Supply condition
Normal strength Ship Hull Steel Grades
·Grade A is usually made as aluminium and silicon killed steel. It is normally supplied in the as rolled condition.
·Grade B is silicon killed aluminium treated steel and is normally supplied in the as rolled condition.
·Grades D and E are made to fully killed fine grain practice to ensure that toughness requirements are met. Grades D and E plate are normalised.
Tolerances
ABS Grade A, B, D and E ship hull steel plates supplied with dimensional tolerances according to ABS and Lloyds specifications.
Inspection and witnessing
Our nspector witnesses the mechanical tests. Surface inspection and verification of dimensions are the responsibility of the steel producer. The inspector witnessing of surface inspection and/or ultrasonic testing is done only at the request of the purchaser. Every finished item is marked with the LR/ABS brand together with other relevant identification marks.
Contact us
www.bebonchina.com
www.steel-plate-sheet.com
Emai: asteelgrade@gmail.com
bebon.steel@outlook.com
