ABS DQ63 steel plates are specialized materials designed to meet the stringent requirements of the shipbuilding industry. These plates possess excellent mechanical and chemical properties, making them suitable for a range of marine applications.
In terms of chemical composition, ABS DQ63 steel plates are formulated with specific alloys to achieve the desired properties. These alloys include carbon, silicon, manganese, phosphorus, sulfur, chromium, nickel, molybdenum, and copper, each playing a vital role in enhancing the steel's strength, corrosion resistance, and weldability.
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ABS DQ63 Extra high Strength Chemical Composition in Tempering and Quenching |
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Grade |
The Element Max (%) |
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C |
Si |
Mn |
P |
S |
N |
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ABS DQ63 |
0.20 |
0.55 |
1.7 |
0.030 |
0.030 |
0.02 |
Crack Sensitivity: Pcm = (C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B)%
Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
Mechanically, these steel plates exhibit remarkable characteristics. ABS DQ63 plates possess high tensile strength, yield strength, and elongation, ensuring excellent performance under extreme conditions. This combination of strength and ductility makes them well-suited for use in hull structures, decks, and other critical components of ships.
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ABS DQ63Extra high strength property in tempering and quenching |
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Grade |
Mechanical Property |
Charpy V Impact Test |
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Yield |
Tensile |
Elongation |
Degree |
Energy 1 |
Energy 2 |
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|
Min Mpa |
Mpa |
Min % |
-20 |
J |
J |
|
|
ABS DQ63 |
620 |
720-890 |
15 |
41 |
62 |
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Note: Energy 1 is transverse impact test, Energy 2 is longitudinal |
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The heat treatment state of ABS DQ63 steel plates is carefully controlled to optimize their properties. Typically, these plates undergo normalizing or quenching and tempering processes, which help improve their toughness and resistance to fatigue.
Impact testing is a crucial aspect of ensuring the reliability of ABS DQ63 steel plates. These tests evaluate the material's resistance to sudden and rapid loads, simulating conditions that may be encountered during rough sea conditions or collisions. The plates are able to withstand significant impact forces without failure, ensuring the safety of the ship and its crew.
ABS DQ63 steel plates find widespread application in the shipbuilding industry. They are commonly used in the construction of hulls, decks, bulkheads, and other structural components of ships. Their excellent strength and corrosion resistance make them ideal for use in both fresh and saltwater environments.
