Reasons and countermeasures for failure of tensile fracture of KF40 ocean engineering steel plate

Reasons and countermeasures for failure of tensile fracture of KF40 ocean engineering steel plate

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The grades specified in the GB712-2011 ship and marine engineering structural steel standard are: Grade A, B, D, E, AH32, DH32, EH32, FH32, AH36, DH36, EH36, FH36, AH40, DH40, EH40, FH40, AH420, KF40 ocean engineering steel plate, DH420, EH420, FH420, AH460, DH460, EH460, FH460, AH500, DH500, EH500, FH500, AH550, DH550, EH550, FH550, AH620, DH620, EH620, FH620, AH690, DH690, EH690, FH690.

Main characteristics of 12Cr1MoV Steel: compared with 12CrMoV steel, 12Cr1MoV steel has higher oxidation resistance and thermal strength. The creep limit of 12Cr1MoV steel is very close to the endurance strength value, and it has high plasticity under the condition of endurance tension; the processability and weldability of 12Cr1MoV steel are good, but it needs to be preheated to 300 ℃ before welding, and stress removal treatment after welding. 12Cr1MoV steel is widely used in Superheater, header and main steam pipe of high pressure, ultra-high pressure and subcritical utility boiler.

We can produce steel plate, steel pipe, steel coil, and also carry out a series of KF40 ocean engineering steel plate processing services, steel plate cutting, welding, etc. we have advanced production technology and production equipment, which can meet the needs of customers to the greatest extent. Whether it is deep processing or cutting, we will communicate with customers in detail to choose the best KF40 ocean engineering steel plate processing method and production technology.

The boiler steel plates are among our main products. Other than standard size boiler steel plates, we also provide KF40 ocean engineering steel plate cutting, bending and so on processing to change plate size and shape according to your requirements. Welcome to consult us about KF40 ocean engineering steel plate ASTM A204 grade B properties, SA 516 gr 70 temperature range, ASTM A285 grade C chemical composition, boiler steel price and so on questions and ask for offer.

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Both parties shall confirm the KF40 ocean engineering steel plate material object and the quality of the products, confirm the reasons for the defects and the quality of the products, and sign the quality inspection agreement. Major quality objections shall be reported to relevant leaders in a timely manner, and shall be discussed and solved with the KF40 ocean engineering steel plate steel plant.

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