GL Grade D Ship Steel Plate

Products Description Which Alloying Elements, Besides Chromium, Can Elevate the Corrosion Resistance of GL Grade D Ship Steel Plate? When it comes to enhancing the corrosion resistance of GL Grade D Ship Steel Plate, apart from chromium, several other alloying elements play pivotal roles....

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Products Description

Which Alloying Elements, Besides Chromium, Can Elevate the Corrosion Resistance of GL Grade D Ship Steel Plate?

When it comes to enhancing the corrosion resistance of GL Grade D Ship Steel Plate, apart from chromium, several other alloying elements play pivotal roles. Comprehending these elements is indispensable for optimizing the performance and durability of the steel in maritime applications.

Nickel is one such element that significantly contributes to enhancing corrosion resistance. It facilitates the formation of a protective layer on the steel's surface, making it more resilient against the corrosive impacts of saltwater and marine environments. Additionally, nickel boosts the steel's toughness and ductility, which are crucial properties for withstanding the mechanical stresses that ship structures undergo.

Molybdenum is another significant alloying element. It offers outstanding resistance to pitting and crevice corrosion, which are prevalent forms of corrosion in marine conditions. Moreover, molybdenum enhances the steel's strength at elevated temperatures, rendering it suitable for applications where high temperatures might be encountered.

Steel Grade	C	Si	Mn	P	S	Als
A	≤0.21	≤0.50	≥2.5c	≤0.035	≤0.035
B	≤0.21	≤0.35	0.8~1.2	≤0.035	≤0.035
D	≤0.21	≤0.35	0.6~1.2	≤0.035	≤0.035	≥0.015
E	≤0.18	≤0.35	0.7~1.2	≤0.035	≤0.035	≥0.015
AH32	≤0.18	≤0.50	0.9~1.6	≤0.035	≤0.035	≥0.015
DH32	≤0.18	≤0.50	0.9~1.6	≤0.035	≤0.035	≥0.015
EH32	≤0.18	≤0.50	0.9~1.6	≤0.035	≤0.035	≥0.015
FH32	≤0.18	≤0.50	0.9~1.6	≤0.035	≤0.035	≥0.015

AH36	≤0.18	≤0.50	0.9~1.6	≤0.035	≤0.035	≥0.015
DH36	≤0.18	≤0.50	0.9~1.6	≤0.035	≤0.035	≥0.015
EH36	≤0.18	≤0.50	0.9~1.6	≤0.035	≤0.035	≥0.015
FH36	≤0.18	≤0.50	0.9~1.6	≤0.035	≤0.035	≥0.015
AH40	≤0.18	≤0.50	0.9~1.6	≤0.035	≤0.035	≥0.015
DH40	≤0.18	≤0.50	0.9~1.6	≤0.035	≤0.035	≥0.015