Shipbuilding

The increase in the construction of chemical tankers for has led to a significant increase in the amount of stainless steel used in the marine industry. In the past, the use of stainless materials was mainly salt and acid-resistant piping, including pumps and valves. Due to engineering technology advancing and costs increasing, the amount of stainless steel used in the marine industry is very small.
But in recent years, with the rapid development of China's economy, China's petroleum and petrochemical industry have entered a new round of rapid development and industrial upgrading.The liquid chemical transportation industry is full of development opportunities. For example, the manufacture of LNG, LPG and chemical tankers with stainless steel cargo tanks has become a new trend in the domestic shipbuilding industry and has also created opportunities for domestic shipyards to build highly difficult and high value-added LNG ships.
With the successful delivery of the first 147,200 cubic meters of LNG ship at Hudong Zhonghua Shipyard, China's shipbuilding industry broke the previous monopoly of LNG ship construction by Japan, Europe and South Korea, which won us bulk orders and domestic The stainless steel industry brings new opportunities.

The following materials are commonly used steel in the shipbuilding field

Because stainless steel has excellent mechanical properties, excellent processing accuracy and strong corrosion resistance, it has an irreplaceable role in shipbuilding materials. Moreover, with the development of China's stainless-steel industry, the trend of using stainless steel pipe fittings in the shipbuilding industry has become more apparent.
For example, in 2019, dual phase steel S31803 pipes, fittings and flanges were used in a ship project in Singapore. The ship's overall weight was reduced, thereby increasing the ship's own carrying capacity, and its corrosion resistance was also significantly improved. This shows that despite the marine industry as a whole preferring alternative options, stainless steel still has a foothold in shipbuilding to this day.

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