GL Ship Steel Plate DH36

Products Description The processing technology and factory delivery shapes of GL Ship Steel Plate DH36 are crucial aspects that determine its quality and application in the shipbuilding industry. Here is a detailed description along with relevant data, presented in about 1500 words. The...

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Description

Products Description

The processing technology and factory delivery shapes of GL Ship Steel Plate DH36 are crucial aspects that determine its quality and application in the shipbuilding industry. Here is a detailed description along with relevant data, presented in about 1500 words.

The processing of GL Ship Steel Plate DH36 typically involves several key steps to achieve the desired properties and quality.

The initial stage is the selection of raw materials. High-quality iron ore, coke, and other alloying elements are carefully chosen to ensure the composition meets the strict standards for shipbuilding steel.

Next, the steelmaking process commences. This often involves the use of electric arc furnaces or basic oxygen furnaces to melt the raw materials at extremely high temperatures. During this process, precise control of the chemical composition is maintained by adding specific amounts of elements such as carbon, manganese, silicon, and others.

After the steel is molten, it undergoes continuous casting to form slabs. The slabs are then subjected to hot rolling, where they are passed through a series of rollers at elevated temperatures to reduce their thickness and shape them into plates. The temperature and the amount of pressure applied during hot rolling are critical parameters that influence the microstructure and mechanical properties of the final product.

The hot-rolled plates may undergo further processing, such as heat treatment, to enhance their properties. Normalizing, annealing, or quenching and tempering are common heat treatment methods employed to optimize the strength, hardness, and ductility of the steel.

In terms of the processing parameters, the heating temperature during hot rolling can range from 1100°C to 1250°C, depending on the thickness and composition of the plate. The reduction ratio during rolling typically varies from 2:1 to 5:1 to achieve the desired final thickness and mechanical properties.

Now, let's discuss the factory delivery shapes of GL Ship Steel Plate DH36.

Grade	YieldStrength MPA	TensileStrength MPA	Elongation%	TestTemperature°C	V Ballistic Work
Thickness mm
≤50	>50~70	>70~100
L	T	L	T	L	T
A	≥235	400-520	≥22	20			34
B	≥235	400-520	≥22	0	27	20	34
D	≥235	400-520	≥22	-20	27	20	34
E	≥235	400-520	≥22	-40	27	20	34
AH32	≥315	440-570	≥22	0	31	22	38
DH32	≥315	440-570	≥22	-20	31	22	38
EH32	≥315	440-570	≥22	-40	31	22	38
AH36	≥355	490-630	≥21	0	34	24	41
DH36	≥355	490-630	≥21	-20	34	24	41
EH36	≥355	490-630	≥21	-40	34	24	41
AH40	≥390	510-660	≥20	0	41	27
DH40	≥390	510-660	≥20	-20	41	27
EH40	≥390	510-660	≥20	-40	41	27