The Treasure Hunt of an Antique Dealer

Steel gray metal material that does not corrode, and its specific gravity is much heavier than steel. The first thing Zhang Nan thinks of is tungsten, which has a specific gravity of 35, which is similar to gold, and its appearance is similar to the metal rod on hand.

Tungsten?

But this speculation was immediately rejected by him: Zhang Nan had seen the tungsten rod, and he had seen the raw material tungsten when he went to a steel factory to purchase tungsten steel drill bits.

Tungsten is not easy to oxidize, and it takes a long time for the surface to lose its metallic luster in the air, but the luster of the metal rod in your hand is as good as it just came out of the furnace.

There was also a guy on the side who was speculating if it was tungsten. Zhang Nan said: "No, the tungsten and tungsten steel in the salt water will cause surface corrosion within a week, not tungsten."

what is that?

I weighed the weight of the metal rod again, and it was very pressing, but even though I was used to gold, it was difficult to judge the difference between this metal rod and gold by this hand.

There are a bunch of metal element names in my mind, and I can’t match the number: I’m a buyer, but I’m not a metal material expert, let alone a master craftsman in a precious metal processing plant. Relatively accurate material gravity.

Keep thinking, keep guessing.

"Steel gray, what is it..."

At this time, a few guys in the kitchen and logistics brought iced drinks. After the western food chef of the "Big Shark" delivered iced freshly squeezed juices, they saw the boss and the captain discussing the salvaged metal rods. I watched it lively.

"I think this should be tantalum, a metal tantalum rod."

"Tantalum?"

Zhang Nan has heard of this stuff, but never seen it, why?

Seeing that it was Mr. Chef on the ship, Zhang Nan just wanted to ask him, but Captain Jamie, who didn't think about it, asked first: "Polo, how did you get there?"

This western food chef named Polo is only in his twenties, and he is not fat at all. Among white Americans, he is thin and short. He is 1.65 meters tall. If it weren’t for him in a white chef’s uniform as an Arabian robe. Blocking the sun, I really can't guess that this buddy is in the kitchen.

Hearing the captain’s question, Polo hurriedly said: “Mr. Captain, one of my father’s hips had a problem two years ago. The doctor said that a metal rod should be implanted in the bone. Stainless steel can only be used for 20 to 30 years. When the time limit is reached, I have to change it, and I have to suffer a lot.

If a tantalum rod is implanted, that rod will not be a problem if you go to see God after a hundred years of age. "

Speaking of this, the expression of the Polo chef has become a bit gritted!

"...It's deadly expensive, several times that of stainless steel. You have to pay for it if you don't want to line up.

The house was changed as soon as I gritted my teeth, and then I became a contractor...

Not bad, thank the boss for his generosity, now this is not bad. "

At the end, Mr. Chef flattered Zhang Nan: Because of illness to reduce poverty, Americans will have such problems even in people with medical insurance.

Insurance is not a disease, and the cost will be paid for!

The family had to cut the thigh and then perform a major operation based on the thigh bone. Of course, this material was carefully compared. Polo had seen it and took the "sample" medical tantalum rod that the doctor showed him.

From the material point of view, it is exactly the same as the salvaged metal rods in front of me.

At this time, he also took the root to try the feel, "This thing has a proportion of 6 or more. I have checked a lot of information. I can't forget it. It can't be wrong.

Deadly expensive, deadly heavy! "

The proportion of gold is 26, which is more important than it, but such a difference in proportion, Zhang Nan and the group really don't feel it.

Well, everyone knows that this should be tantalum, which can be used as a support frame in bones. It is also extremely strong and has a hardness of 5 Mohs. It can be used to cut glass.

As for where else it can be used...

have no idea!

Polo didn't know, he only cared about his father's hip joint.

Feeling that it is not a general commodity, Zhang Nan said to the captain: "The medical materials in the Serb's body are expensive and can't be used as a standard. Jamie, call and ask... Forget it, let me do it."

Tantalum, not many people have heard of it. Who can Mr. Captain ask?

It was Zhang Nan who came fast by himself: his financial parent company has been doing futures business. There are people on the New York non-ferrous metals exchange, and it’s a phone call.

I don't call my own women, they don't need to be involved in such a trivial matter: there are phone numbers of several company executives in the newsletter.

No matter what time you are, a call comes over and tells the other person who you are, "...I will find out the price of the metal tantalum recently...Yes, it is tantalum...Okay, I'll call you in five minutes."

Five minutes later, Zhang Nan got a satisfactory answer.

"This kind of tantalum rod is about 520 US dollars per kilogram, and it is estimated that it will rise slightly in the past two years, and the price is about the same as silver."

Now some people are happy and someone scolds their mother!

US$520,000 per ton is more than sixty times the price of pure tin, which can almost reach the price range of precious metals. Of course, the crew and salvage crews on the ship are happy.

It was Polo who scolded the mother: the tantalum rod in his father's thigh bone, calculated by weight, the price is many times that of the raw material, high-purity tantalum rod!

Mr. Captain relieved him: "I want to open it up. There are still tens of thousands of dollars in leather shoes. How much is a piece of cowhide?

What they sell is crafts! "

Mr. Chef has to figure it out if he can’t figure it out. Now there is only one question left: How many tantalum rods are there?

Only the little devil who drowned in the sea knew about this problem, and it would take time for Zhang Nan and others to figure out this problem.

Why did the little devil use tantalum during World War II?

I don't know, Zhang Nan is too lazy to bother about it, and doesn't even care about what this thing can do now.

Oh, at least one effect is clear: it can be stuffed into human bones!

Use the wired intercom to inform the divers below~www.wuxiaspot.com~Don't worry about the tin ingots during the rest of the working time, and get a few metal rods up.

After searching the seabed for one to half an hour, Bruno ordered the divers to float up along the diving rope in batches. Each person must float for more than 40 minutes.

"The water is relatively deep, so let everyone get used to it first. When the supplementary equipment arrives, all divers will launch wheeled water in stages."

Bruno explained why the work time was shortened, and Zhang Nan said: safety first!

By the way, tell the diving captain again: "If you need it, take that atmospheric diving suit. No matter how expensive it is, it's a tool. You can use it for many purposes. You can't buy it and put it as a display."

The diving suit worth $500,000 looks exaggerated than an astronaut's extravehicular space suit. The maximum operating depth is more than 300 meters. It is used to salvage the remnants of the shipwreck at a depth of 50 meters. That is a sledgehammer!

Zhang Nan likes to do it like this. Kill chickens with a sledge knife and kill one at a time; if you kill a ox with a sledge knife, be careful of being killed by the bull!