Weld surface of ASTM A131 B steel plate shall be flat and smooth, with the same width of weld seam, and the remaining height shall meet the process requirements. ASTM A131 B steel plate surface should be free of porosity, cracks, underbite defects.
2021-05-26
ASTM A131 B steel plate shall be welded in strict accordance with the process specification, and the welding line energy is generally controlled below 5000J/cm. If the line energy is too large and the weld metal stays at high temperature for a long time,
2021-05-24
The size, shape and allowable deviation of ABS grade A steel plate shall comply with the regulations of GB/T709, but the negative deviation of ABS grade A steel plate thickness shall be no more than 0.3mm.
2021-05-24
No bubbles, scarring, cracks, cracking, folding, inclusion and pressing into oxidized iron sheet are allowed on the surface of ABS Grade A marine steel plate. ABS Grade A marine steel plate shall not be laminated.
2021-05-24
Z-direction performance of FH420 shipbuilding steel plate: it is commonly known as thickness direction performance steel plate. There are special provisions for the mechanical properties of thick steel plate in thickness direction.
2021-05-12
Delivery status of FH420 steel plate: TMCP, TMCP-T, tempering, normalizing, tempering, annealing and quenching, etc. Normalizing: heat the FH420 steel plate to a suitable temperature for cooling in the air.
2021-05-12