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What is BV grade DH32 shipbuilding steel plate

Posted:2019-09-19 14:56:05

BV grade DH32 shipbuilding steel plate is a kind of high tensile strength marine steel. It has been engineered to be optimal long-lived shipbuilding steel. BV grade DH32 shipbuilding steel plate is mainly used to build vessels which are sailing in low temperature oceans.

When rolling BV grade DH32 shipbuilding steel plate, TMCP or Normalized shall be done for heat treatment, and low temperature impacting test have to be done under minus 20 centigree. For improve the thickness-direct steel property for BV grade DH32 shipbuilding steel plate, Z-test is also necessary, and the classes are Z15, Z25 and Z35.

Main chemical elements composition of BV grade DH32 shipbuilding steel plate (heat analysis max %):

C Si Mn P S Al (acid) min. Nb
0.18 0.10-0.50 0.90-1.60 0.035 0.035 0.015 0.02-0.05
V Ti Cu Cr Ni Mo  
0.05-0.10 0.02 0.35 0.20 0.40 0.08  

Mechanical property of BV grade DH32 shipbuilding steel plate:

Grade Yield strength (≥Mpa) Tensile strength (Mpa) Elongation in ≥,%
BV grade DH32 315 440-590 200mm 50mm
19 22

BV grade DH32 shipbuilding steel plate equivalent grades:

AB/D32 GL-D32 LR/DH32 NV D32 R D32 K D32 RI/D32

BV grade DH32 shipbuilding steel plate is mainly used for making the offshore oil drilling platform, the hull of ship building and ship repairing, the platform pipe joints and other components. The especially thin but wide BV grade DH32 shipbuilding steel plates are used for such applications to offer the best processing properties such as flatness and weld ability.


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