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CCS/NV/GL620 is a structural steel for ships and marine engineering, divided into four quality grades: A, D, E, F, namely AH620, DH620, EH620, FH620, H is for high-strength building materials, and 620 is for lower yield strength.
2. AH620, DH620, EH620, FH620 steel plate executive standard: GB711-2011
This standard is used in the manufacture of steel plates with a thickness of not more than 150mm for navigating ships, fishing boats and marine engineering structures in ocean, coastal and inland waterway areas.
3. Delivery status of AH620, DH620, EH620, FH620 steel plates: TMCP, quenched and tempered, TMCP+tempering. Flaw detection standard requirements, flaw detection level requirements, Z-direction function requirements, classification society certification requirements, requirements for adding special alloy elements, etc. can be added, but it needs to be exchanged between the supplier and the buyer and indicated in the contract.
4. AH620, DH620, EH620, FH620 steel plate size, shape, weight and allowable deviation:
It should meet the requirements of GB/T709, and the thickness deviation is -0.30mm.
5. The grades specified in the GB712 ship and marine engineering structural steel standard are: A, B, D, E, AH32, DH32, EH32, FH32, AH36, DH36, EH36, FH36, AH40, DH40, EH40, FH40, AH420 , DH420, EH420, FH420, AH460, DH460, EH460, FH460, AH500, DH500, EH500, FH500, AH550, DH550, EH550, FH550, AH620, DH620, EH620, FH620, AH690, DH690, EH690, FH690.
GB T 5312 Carbon and carbon-manganese steel seamless steel tubes and pipes are mainly for ship use, also known as shipbuilding steel pipes. Under GB T 5312, there are mainly 5 steel grades: grade 320, 360, 410, 460 and 490. Each grade covers three levels: I, II, III.
Angle steel, commonly known as angle iron, is a long strip of steel whose sides are perpendicular to each other. There are equal angle steels and unequal angle steels. The two sides of equal angle steel are equal in width. The unequal angle steel is also known as L shape profile steel.
Flat bar steel can be produced according to the user's needs, with fixed thickness, width and length. It can reduce the cutting process for users, reduce the consumption of labor and materials, and also reduce the processing loss of raw materials.
Bulb flat steel for shipbuilding
The bulb flat steel is a kind of medium section material which is mainly used in the field of shipbuilding and bridge building, and the shipbuilding bulb flat steel is an auxiliary medium section material for shipbuilding.
The steel for shipbuilding and oil platform---FH40, is the high tensile strength steel.The shipbuilding steel FH40 is the Hull structural steel.We can provide FH40 shipbuilding steel plate price.
The steel for shipbuilding and oil platform---EH40, is the high tensile strength steel.The shipbuilding steel EH40 is the Hull structural steel.We can provide EH40 shipbuilding steel plate price.
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BBN SHIP STEEL FACTORY
