In the office, after hearing what Zhao Guoyang said, Li Kejian and Qin Yang couldn't help but sit up.

Obviously, these two leaders are still very concerned about the current development status of the national shipbuilding industry.

Zhao Guoyang sighed softly and said in a voice: "Old Li and Director Qin, you should also know that with the development of the world economy, the scale-up of ships, and the deep-sea development of marine resource development will be further accelerated."

"And this requires a large number of steel for the ship industry and marine industry with special properties."

"Our country started late, and in terms of the production and research of special steel used in the shipbuilding and marine industries, it is very different from the international advanced level."

"If we want to improve the level of our domestic ship manufacturing industry, the improvement of the level of special steel smelting is a big problem that our country has to face."

After Zhao Guoyang finished speaking, Li Kejian couldn't help but sigh softly.

As a big shot in domestic industry, Mr. Li has always been very concerned about the improvement of domestic steel manufacturing level and has also come up with many ideas.

In recent years, although the total domestic steel production has gradually leaped to the forefront of the world, in this regard, China is already a major steel country.

However, being big but not strong is the main problem in the domestic steel industry.

You should know that the condition for a strong steel country is to have the world's leading production capacity and technical level, and to be able to produce high-performance, high-tech content and high additional products.

While basically meeting the domestic market, China's steel production is still focused on high-energy consumption and low-value-added products, and most of the high-value-added steel still rely on imports. In Mr. Li's opinion, this is not a good phenomenon.

In the shipbuilding industry, because the high-performance special steel materials required are large in number, it further highlights the shortcomings of the domestic steel manufacturing industry.

At this time, Zhao Guoyang's story just touched the depths of Li Kejian's heart, making him feel a little sad.

Qin Yang, who was standing aside, might have seen Mr. Li's melancholy, so he smiled reluctantly and said, "The problem mentioned by Researcher Zhao does exist. You are an expert in this regard. I wonder if you can tell me in detail?"

"For example, what types of special steel are urgently needed by the ship industry and the marine industry; how big is the gap between us and the international advanced level in terms of technology, and so on..."

Since the leader has spoken, Zhao Guoyang is of course very knowledgeable and full of words.

After sorting out his thoughts, he slowly explained the current situation of special steel needed for the shipbuilding industry.

"According to the current domestic ship production situation, the gaps in special steel are mainly the following categories... First, it is the low-temperature steel used by liquefied gas transporters."

"Internationally, liquefied gas is mainly carried out through special transport ships for liquefied gas, including LPG (liquefied petroleum gas) ships and LNG (liquefied natural gas) ships."

"The internationally common "Steel Materials and Welding Code" stipulates low-temperature tough steel for the construction of liquefied gas transport vessels and their adjacent hull structures, including carbon-manganese steel with a service temperature above -55℃ and nickel alloy steel with a service temperature between -60~-196℃."

"The 9Ni steel is the main steel type for building self-supported LNG ship storage tanks. Unfortunately, no steel manufacturing company in China can produce this kind of marine 9Ni steel plate at the moment."

Zhao Guoyang sighed and said: "With the increase in human environmental awareness, the proportion of clean energy in international energy consumption will gradually increase, and LPG ships and LNG ships will inevitably be widely used. This requires a large number of low-temperature steels, such as 9Ni steel and expansion alloys."

"No domestic steel manufacturing enterprises have the ability to produce such low-temperature steel in large quantities. If you want to manufacture this liquefied gas transport ship, this type of special steel can only be imported..."

After listening to Zhao Guoyang's story, Mr. Li, who was familiar with the situation of the steel manufacturing industry, sighed.

Although Qin Yang is not particularly proficient in steel manufacturing, he is sweating all over when he hears it.

Indeed, if this researcher Zhao had just told the truth, the development prospects of the domestic shipbuilding industry would be really worrying.

Zhao Guoyang stopped for a while and continued to speak: "In addition to low-temperature steel, special steels often used in the ship manufacturing industry and marine industry include shipboard plates for high-heat input welding, high-crack-resolution steel plates, and ultra-high-strength steel for marine platforms."

"As far as I know, few steel manufacturers in China can mass produce these special steels."

Speaking of this, Zhao Guoyang sighed: "It is no exaggeration to say that if domestic steel manufacturing companies cannot achieve a significant improvement in the production level of special steel, our China's shipbuilding industry will not have to think about it..."

Listening to Zhao Guoyang's exaggerated words, Qin Yang was shocked.

But when he saw Li Kejian next to him nodding with yes with a deep consent, he could only force himself to accept the radical ideas of the young "Researcher Zhao".

Zhao Guoyang seemed to suddenly think of something, and then said again: "Ah, by the way, Director Qin. There is also an important type of special steel. I forgot to tell you."

Qin Yang was slightly stunned, and then quickly spoke: "Researcher Zhao, just say it, I'll listen!"

Zhao Guoyang nodded with a "hmm" and said, "This last special steel is corrosion-resistant steel..."

When Li Kejian heard the three words "corrosion-resistant steel", he seemed to be awakened and soon became energetic.

"Corrosion-resistant steel? Is it stainless steel? Researcher Zhao, it seems that some companies can produce steel such as stainless steel in China?"

Qin Yang should have some understanding of this aspect. After listening to Zhao Guoyang's story, he couldn't help but sneer.

Zhao Guoyang took a deep breath and explained: "Director Qin is half right. This corrosion-resistant steel is indeed a type of stainless steel. It refers to steel that can resist corrosion in certain strong corrosion media. Stainless steel is just steel that can resist corrosion in air or weak media."

"To put it bluntly, stainless steel may not be corrosion-resistant, and corrosion-resistant steel must be stainless steel."

Hearing this, Qin Yang slapped his head and suddenly realized.

After Qin Yang understood, Zhao Guoyang continued: "In our country, according to the differences in corrosion resistance of various stainless steels, the specifications are set from 301 to 349."

"But in fact, domestic steel production enterprises can produce only stainless steel in the range of 301~314."

"In international ship manufacturing, the properties of corrosion-resistant steel required are at least 321 or above. In other words, in terms of corrosion-resistant steel, our domestic ship manufacturing companies rely entirely on imports..."

Zhao Guoyang's story made Li Kejian and Qin Yang a little ashamed.

Indeed, as department leaders of the Ministry of Machinery and Electronics Industry and the State Oceanic Administration, the two of them have leadership responsibilities for the domestic ship manufacturing industry.

The current lag in this industry has also put a lot of pressure on the two leaders.

Zhao Guoyang did not notice the unnatural nature of Mr. Li and Director Qin. Since he talked about corrosion-resistant steel, he had to introduce the meaning of this special steel.

"Director Qin, the reason why I specifically mention this corrosion-resistant steel is because it is an indispensable special steel for oil tankers. In the cargo tanks of oil tankers, the corrosion-resistant steel consumption accounts for 40% to 45% of the total steel used in the ship, which means that crude oil corrosion-resistant steel plates have huge market demand."

"You must know that as an important tool for international crude oil transportation, the number of oil tankers has always increased every year. And the amplitude is quite large..."

As the leader of the State Oceanic Administration, Qin Yang is naturally familiar with the widespread use of oil tankers.

After listening to Zhao Guoyang's explanation, he nodded with consent and said, "I really understand a lot after listening to your words from Researcher Zhao!"

"It seems that if we want to achieve certain success in this pilot project by our State Oceanic Administration and the Ministry of Mechanical and Electronics Industry, we really have to start with steel companies?"

After Qin Yang finished speaking, Zhao Guoyang replied seriously: "It is true. Director Qin, the development of the shipbuilding industry is closely related to the development of steel enterprises. On this issue, I think the two leaders and departments can completely consider it."

Zhao Guoyang explained calmly: "As we all know, the shipbuilding industry is one of the eight major industries in the world's steel consumption. Specifically, in our China, the annual steel demand for shipbuilding industry is at least between 2 million and 2.5 million tons."

"There are 80%-90% of marine steel plates, which are just the steel consumed by shipbuilding itself, and do not include steel other than shipbuilding, such as steel for construction of factories and equipment used for shipbuilding. In this regard, the domestic marine steel market is very huge."

Hearing this, Qin Yang's eyes lit up, and he already understood what Zhao Guoyang meant.

As expected, Zhao Guoyang quickly continued: "I think that since we are going to carry out this private ship manufacturing pilot, it is better to propose some special steel problems in a package to solve them."

"In this way, we can not only gradually explore private enterprises and get involved in the shipbuilding industry, but also improve our domestic steel production technology level to a certain extent. It is really the best of both worlds!"

Upon hearing this, Qin Yang rubbed his chin and nodded repeatedly: "Well, yes! Researcher Zhao's idea can definitely be implemented, it is very feasible!"

Seeing that Director Qin gradually "gets in", Li Kejian, who was beside him, glanced at Zhao Guoyang with a funny look.

Zhao Guoyang didn't think about hiding this Mr. Li, and he didn't feel ashamed of being scandaled by this person.

Zhao Guoyang calmed down and said with a loud chest and a belly-sagging voice: "Director Qin, I am willing to recommend myself about this private ship manufacturing pilot you proposed!"
Chapter completed!