In the office, Li Kejian and Qin Yang couldn't help but sit up after listening to Zhao Guoyang's words.

Obviously, these two leaders are still very concerned about the development status of the country's shipbuilding industry.

Zhao Guoyang sighed lightly and said in a higher voice: "Elder Li and Director Qin, the two of you should also know that with the development of the world economy, the large-scale ships and the deep-sea development of marine resources will be further accelerated. ”

"And this, it is necessary to use a large number of steel with special properties for the shipbuilding industry and marine industry. ”

"Because of the late start of our country, there is a big gap between the production and research of special steel for the shipbuilding industry and the marine industry from the international advanced level. ”

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

After Zhao Guoyang's words, Li Kejian couldn't help but sigh softly.

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

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

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

You must know that the condition of a steel power is to have the world's leading production capacity and technical level, and to have the ability to produce high-performance, high-tech and high-added products.

While basically satisfying the domestic market, Huaxia steel production is still biased towards high energy consumption and low value-added products, and most of the high value-added steel still relies on imports, which is really not a good phenomenon in Li Lao's view.

The shipbuilding industry, because of the large variety and quantity of high-performance special steel required, highlights the lack of domestic steel manufacturing level.

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

Qin Yang on the side may also see Elder Li's melancholy, so he reluctantly smiled and said, "The problem that Researcher Zhao said does exist. You're an expert in this area, so I wonder if you can tell me more about it?"

"For example, what kinds of special steel are urgently needed by the shipbuilding industry and marine industry, and 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 certainly knows everything and says everything.

He sorted out his thoughts for a while, and slowly talked about the current situation of special steel required by the shipbuilding industry that he knew.

"According to the current situation of our domestic ship production, the gap of special steel is mainly the following categories...... The first is the cryogenic steel used in liquefied gas carriers. ”

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

"The internationally accepted "Code for Steel Materials and Welding" stipulates that low-temperature ductile steel used in the construction of the cargo tank of the liquefied gas carrier and its adjacent hull structure includes carbon-manganese steel with a temperature of more than -55 °C and nickel alloy steel with a temperature of -60~-196 °C. ”

"Among them, 9Ni steel is the most important steel grade for the construction of self-supporting LNG ship storage tanks. It is a pity that there is no steel manufacturing enterprise in China that can produce this kind of marine 9Ni steel plate. ”

Zhao Guoyang sighed and said: "With the enhancement of human awareness of environmental protection, 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 large quantities of low-temperature steels, such as 9Ni steels and expansion alloys. ”

"None of our domestic steel manufacturing companies has the ability to produce this kind of low-temperature steel in large quantities. If you want to make this kind of liquefied gas carrier, this kind of special steel can only be imported ......"

After listening to Zhao Guoyang's story, Li Lao, who is familiar with the situation of the steel manufacturing industry, sighed for a while.

And although Qin Yang was not particularly proficient in steel manufacturing, he was also sweating when he heard it.

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

Zhao Guoyang paused for a moment, and then continued to speak: "In addition to low-temperature steel, special steels often used in the shipbuilding industry and marine industry also include ship plates for large heat input welding, steel plates with high crack resistance, and ultra-high-strength steels for offshore platforms. ”

"And these kinds of special steel, as far as I know, there are few domestic steel production enterprises can mass production. ”

Speaking of this, Zhao Guoyang sighed and said: "It is no exaggeration to say that if domestic steel manufacturing enterprises cannot get a big improvement in the production level of special steel." If our shipbuilding industry in China wants to take off, it doesn't have to be thought of......"

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

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

Zhao Guoyang seemed to suddenly think of something, so he opened his voice again: "Ah, by the way, Director Qin." There is also an important type of special steel, forgot to tell you. ”

Qin Yang was slightly stunned, and then hurriedly said, "Researcher Zhao, just say it, I'll listen!"

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

Hearing the words "corrosion-resistant steel", Li Kejian seemed to be awakened, and quickly regained his spirits.

"Corrosion-resistant steel, is it stainless steel, right? Researcher Zhao, stainless steel seems to be produced by domestic enterprises, right?"

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

Zhao Guoyang took a deep breath and explained, "Director Qin is half right. This corrosion-resistant steel, which is indeed a type of stainless steel, refers to steel that can resist erosion in certain strong corrosive media. Whereas, stainless steel is simply steel that resists erosion in air or weak media. ”

"To put it bluntly, stainless steel is not necessarily corrosion-resistant, corrosion-resistant steel must be stainless steel. ”

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

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

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

"In international shipbuilding, the performance of corrosion-resistant steel required is at least above 321. In other words, in terms of corrosion-resistant steel, our domestic shipbuilding enterprises are completely dependent on imports......"

Zhao Guoyang's remarks made the two leaders, Li Kejian and Qin Yang, a little embarrassed.

Indeed, as the 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 shipbuilding industry.

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

Zhao Guoyang didn't notice the unnaturalness of Li Lao and Director Qin, since he talked about corrosion-resistant steel, he had to introduce more about 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 the manufacture of oil tankers. In the cargo oil tank of oil tankers, the amount of corrosion-resistant steel accounts for 40%~45% of the total steel consumption of the ship, which means that the crude oil corrosion-resistant steel plate has a huge market demand. ”

"You must know that as an important tool for international crude oil transportation, the number of oil tankers has been increasing every year. And it's quite large......"

As the leader of the State Oceanic Administration, Qin Yang is naturally no stranger to the widespread use of oil tankers.

After listening to Zhao Guoyang's explanation, he nodded thoughtfully and said, "Listening to Researcher Zhao's words, I really understand a lot!"

"It seems that if we want to achieve a certain degree of success in this pilot project of the State Oceanic Administration and the Ministry of Machinery and Electronics Industry, we really have to start with iron and steel enterprises?"

After Qin Yang finished speaking, Zhao Guoyang replied with a pretentious voice: "This is indeed the case, Director Qin, the development of the shipbuilding industry is inseparable from the development of iron and steel enterprises. On this issue, I think the two leaders and departments can consider it as a whole. ”

Zhao Guoyang explained in a calm tone: "As we all know, shipbuilding is one of the eight major industries of steel consumption in the world. Specific to our Huaxia, the annual steel demand of the shipbuilding industry is at least between 2 million and 2.5 million tons. ”

"Among them, 80%-90% of marine steel plates are only the steel consumed in shipbuilding itself, and it does not include steel other than shipbuilding, such as steel for building factories and equipment used in shipbuilding. In this regard, the domestic marine steel market is very huge. ”

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

Sure enough, Zhao Guoyang quickly continued: "I think that since we want to carry out this private shipbuilding pilot, it is better to solve the problem of some special steel in a package." ”

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

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

Seeing that Director Qin was gradually "entering the court", Li Kejian on the side glanced at Zhao Guoyang with a smile.

For this Li Lao, Zhao Guoyang didn't think about hiding it, and he didn't feel ashamed at all when he was swept away by this one.

Zhao Guoyang calmed down his mood for a while, and said with a shy voice: "Director Qin, regarding this private shipbuilding pilot you proposed, I am willing to recommend myself!"

"Oh, Mao Sui recommended himself, could it be that Researcher Zhao, you have your own shipbuilding company?" Hearing this, Qin Yang was puzzled.