Alloy steel en 10149-2 high yield strength alloy steel 50mm thick plate

BBN is a en 10149-2 high yield strength alloy steel world leader in exporting A106 / SA 106 pipe and stocks a full range of grades B/C with a size rage NPS 1/8" to NPS 48", with nominal (average) wall thickness as given in B36.10.Marine steel pl

BBN is a EN 10149-2 high yield strength alloy steel world leader in exporting A106 / SA 106 pipe and stocks a full range of grades B/C with a size rage NPS 1/8" to NPS 48", with nominal (average) wall thickness as given in B36.10.

Marine steel plates are classified as medium-thick plates, hot-rolled steel plates used for manufacturing hull structures produced in accordance with the requirements of the classification society. First, the toughness of the marine steel ABS Grade A, en 10149-2 high yield strength alloy steel, ABS EH36 plate is the most critical requirement. In addition, it requires higher strength, good corrosion resistance, welding performance, processing performance and surface quality.

The yield strength of Q690D steel plate is 690 Mpa and the impact temperature is - 20℃. en 10149-2 high yield strength alloy steel, Q690D steel plate has high strength, good plasticity and toughness, good weldability and good cold and hot performance. Q690D steel plate is mainly used to manufacture various large engineering structural components and construction machinery. Because of its high strength and good toughness, Q690D steel plate can reduce the self weight of components and meet the requirements of large-scale and lightweight engineering components and equipment under the condition of ensuring strength, stiffness and reliability.

During cladding welding of hardfacing wear-resistant steel plate, en 10149-2 high yield strength alloy steel, preheating and slow cooling should not be adopted. Sometimes, forced cooling measures are even taken to reduce the residence time of weld in the temperature range of 400-850℃ to prevent local chromium deficiency in austenite grain boundary and σ brittle phase in the plate, resulting in 475℃ brittleness, so as to ensure that the weld metal has good mechanical properties and intergranular corrosion resistance.

Chemical elements of 42SiMn steel: C: 0.39-0.45, Si: 1.10-1.40, Mn: 1.10-1.40. Mechanical properties of 42SiMn steel: tensile strength 885 MPa; yield strength 735 MPa; elongation after fracture: 15; reduction of area: 40; impact energy: 47J. 42SiMn steel belongs to alloy quenched and tempered steel with good properties, high strength, wear resistance and hardenability. Under certain conditions, the strength, wear resistance and hot working performance of 42SiMn steel are better than 40Cr steel, en 10149-2 high yield strength alloy steel, and can be used instead of 40CrNi steel.

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