Global Wasteland: Unlimited Upgrades for Vaults

According to the alloying elements, it is divided into "carbon structural steel" and "alloy structural steel".

It is also divided into "carbon tool steel" and "alloy tool steel".

According to the content of s and p impurities, it can be divided into ordinary steel, high-quality steel, high-grade high-quality steel, and special-grade high-quality steel.

The reason why the famous and unsinkable Titanic fell apart when it hit an iceberg was because the steel plates it used contained many chemical impurities, zinc sulfide, and the long-term immersion in icy sea water made the steel plates more fragile. .

It was only under a small impact that it broke apart and became a permanent regret.

Therefore, in the selection of destroyer materials, based on the principle of going from high to low, Sumo directly skipped the low-strength steel and focused on the military steel used to make ships.

The research on the application of military steel is very cumbersome, with a total of more than 140 items in nine categories.

It is necessary to make accurate tests on the strength, toughness, crack resistance, stress state at low temperature, etc. of steel.

Under normal circumstances, such as the materials used by aircraft carriers, the yield strength of the deck steel should be 90+0mpa, and the yield strength of the hull should be 780mpa.

Going all the way down, the smallest destroyer must maintain a strength of at least 400mpa in order to ensure maximum safety.

"Currently the best steel that can be produced by the furnace is only 620mpa, which should be limited by the temperature that the shelter's supporting facilities can provide"

"Or it has something to do with other modules!"

Arranged from high to low, the best military steel, the degree of yield is not low, but after clicking in to check the specific requirements, Su Mo directly gave up the idea of ​​manufacturing.

Without him, resource consumption is too scary!

Military steel needs to add a lot of strange things, in the furnace, this step is simplified to only need to provide a sufficient number of basic materials to achieve.

But for the amount of basic materials, after checking that one unit of 620-strength steel actually needs 1380 units of iron and 880 units of copper, Su Mo could only smack his tongue and choose to give up.

There is nothing wrong with modern warships using such expensive steel, because the hull steel plates of modern warships are actually not thick, on the contrary they are very thin, such as 052, the steel plate thickness is only 30 mm.

What concept?The thickness of a one-dollar coin is 25 mm, and the steel plate of a warship is only 5 mm thicker.

In modern warfare, the means of attacking warships have become more and more advanced, from the original bombs and torpedoes to anti-ship missiles, and the silent hunting of nuclear submarines equipped with large-caliber torpedoes.

In this case, too thick armor will not play a protective role, but will only drag down combat performance.

But in the wasteland, if you really design such a thin armor according to modern thinking and fight modern warfare, you are simply looking for death.

Not to mention anything else, if there are aliens in the water at that time, with a steel fork, I'm afraid they can easily dig a big hole out.

"The steel plate must be thick. There is no weapon equipped with a destroyer. Thickness is justice. Even if it is a collision, I will have a good time!"

At present, there are only about 8000 units of iron in the shelter, and even if it is temporarily mined, the number will not exceed [-].

Calculated based on the 40-meter length of the destroyer, the steel required, according to Sumo's design, should start at least 2000 units.

Under this demand, if the unit price is controlled at about 10 to 1, it is the best cost performance.

580?Too expensive, give up!

520? Still too expensive, give up!

Picking along the way, watching the strength getting lower and lower, even when the psychological limit was about to be broken, Su Mo didn't let go of his heart until the demand for 440-strength steel jumped out.

For 440mpa military steel, 1 unit requires 13 units of iron blocks and 1.5 units of copper blocks.

2000 units, you need 26000 units of iron blocks and 3000 units of copper blocks!

With the current reserves in the base, 18000 units of iron blocks need to be mined to meet the manufacturing needs.

"The plans do not conflict. If you want to survive the next disaster, the people in the Candlelight Refuge must relocate to Iron Stone Mountain!"

"With excellent-quality iron picks and transportation of storage space, the digging speed of hundreds of people is not slower than that of machinery, and even faster!"

"It's completely possible to kill two birds with one stone. While mining enough iron, we can directly dig out a large space in the mountain that is enough for hundreds of people to survive the disaster!"

249 chapters horror thickness, unprecedented 490mm

After thinking through it, the next plan quickly appeared in Su Mo's mind like a stream of water.

Taking the underground refuge as the center, Sumo has already been completely familiar with the surrounding terrain of [-] kilometers in the last time relic, through the mountain and sea picture scroll cards.

If there is no problem with the evolution of the disaster in the talisman world, within 10 minutes, a full ten meters of water can be accumulated near the underground shelter.

Excluding the main factor that the depression is already sunken and there will be a certain degree of water accumulation, the water on the plain will start at least eight meters on the first day.

Within [-] kilometers, walking up the west side, although the terrain will increase to a certain extent, it is not enough for the monstrous flood disaster!

In this range, if you want to survive, you must find a mountain!

Or...build a boat.

But in that case, it really depends on fate and God's will where to float!

Therefore, all the refugees in the Candlelight Refuge were moved to the Iron Stone Mountain, and while working as free labor to dig out enough iron ore to build destroyers, they could also build a "fortress" that could withstand half a year of floods.

Plan to pass!Kill two birds with one stone!

"When the furnace is started, one unit of steel can be produced in 5 minutes, calculated by working 12 hours a day"

"In thirteen days, less than fourteen days, all the required steel can be assembled"

After calculating the specific time and finding that it only takes less than half a month to gather enough materials, Su Mo is also relieved and no longer anxious.

From one disaster to the next, according to the previous rule, there is a high probability that the preparation time will be 30 days a month or 45 days a month and a half.

With this time, all human beings can also rely on this wave of material harvest to buffer, and come to a wave of wasteland migration to places where they can escape the flood.

After half a year, the flood receded and returned to the land to start a new round of development.

"At that time, if the tundra refuge cannot find a suitable mountain, maybe I have to find a way to help."

"Anyway, as long as you can build a big ship with solid leather, it is impossible to last for more than ten days."

Thinking of the worst in everything, even if there is no terrain advantage within a few hundred kilometers of the tundra refuge, and there is no mountain to escape the flood, the problem is actually not that big.

After all, this disaster is just a flood at present. No matter how high the flood peak is, as long as it is not a tsunami, the impact will not be so terrible.

Even if the downstream flood peak may be 40 to [-] meters high, Sumo is still full of confidence in the execution ability demonstrated by the tundra shelter.

Looking at the time, he found that it was still early. Before Moore came back, Su Mo simply turned the switch on and turned on the machine for the first time.

The storage space of the feeding port is very large. After putting in [-] units of iron blocks and copper blocks at a time, Sumo started the first production.

After clicking the panel to confirm the manufacturing of 440mpa steel plates, a new manufacturing box pops up.