钨加热子

钨加热子由钨丝制成，具有较高的熔点和高耐腐蚀性，主要用于真空镀金、铝等装饰物品，镀铬等镜子，塑料制品，加热元件。钨加热子根据可以的样品或图纸的具体要求，被绞合成单股或多股，所使用的钨丝可以是纯钨丝或掺杂钨丝。钨丝直径范围在0.2 - 1.2mm之间。

Tungsten Price and Its Market

The price of tungsten powder has been increasing in an astonishing speed from RMB320.00/KG to more than RMB380.00/KG in the past 10 days, which is increased almost by 20% compared with what was last month. As an indispensable component of tungsten products, the prices of tungsten products such as tungsten radiation shielding, tungsten cubes, tungsten rods and tungsten plates keep increasing accordingly. 

Related official indicated that is resulted from the development of China’s economy, labor cost increasing, lack of electronic powder, which leads to the sharp increasing. Besides, as applications of tungsten products have been turned from traditional areas to new concept fields, such as electronic, military and energy resource areas, which resulted in a great demand of tungsten material and related products. Therefore, it is estimated that prices for tungsten related will go in an increasing trend.

Tungsten Price Reaches Its Peak in 2011, and Climbing in 2012

With unique characteristics, Tungsten is invaluable to various industries. The Tungsten is made for tungsten-carbide drills and cutting tools for oil and mining applications for the properties of highest melting point after carbon, and high density, which makes up approximately 60 percent of its demand. The high melting point of tungsten makes it invaluable for military applications as well, and it is commonly used in missile/rocket nozzles because it can stand up to the high temperatures. Tungsten has been regarded as a strategic metal because of the world’s reliance on China as the major source of supply.

China has decreased export quotas for the metal since 2008. As of this year the quota stands at 15,700 tonnes, a reduction of 300 tonnes over 2010. The tight supply of the metal, as well as increased demand has sent prices through to all time highs. The price for ferrotungsten as of Feb. 23 is at $50 per kg, tungsten APT is quoted at $380 per mtu. These prices are well over the record highs reached last week of $45 per kg.

There are 5 factors resulting in this situation. First of all, China has banned exports of concentrate, raw material, but they will export semi-refined and refined powders. In 2004-5 the recycling component of the market was around 5 percent, now it is at 35 percent. As the Chinese reduced exports, part of that buffer was taken up by increased recycling, but that has hit a ceiling.

And the second, the market was able to substitute a lack of raw materials coming from China with increased recycling efforts. However, a 35 percent recycling rate is at around the maximum level. New demand for the metal has to be met by new mining production. All of these factors were in play before the economic collapse, shortly thereafter, “the price for tungsten APT went down to $185 per mtu.

The next, the low prices and lack of buyers forced many tungsten miners to halt production. As the market started coming back inventories of the metal were being depleted. “There was an initial surge to restock, and all the while the balance between recycled increased and the reduced exports from china have hit a wall. The increased demand then starts to push prices up.

There are very few substitutes because of the unique characteristics of tungsten. Pricing for tungsten is inelastic, I use the analogy that if you are drilling an oil well, if you have to pull your drill string up 10,000 feet three more times to change drill bits, that’s gets pretty expensive. The need for drill bits in the oil sector alone is a market that can not survive without the metal, and oil prices are on the rise.

And the last, new markets for tungsten will also be the driver of future demand. Tungsten is quickly replacing lead in a variety of industries because of the toxic nature of lead. Jewelry demand, tungsten’s use in LCD screens, and new breakthroughs in nanotechnology will all add to an already tight supply chain. Until new mining can make up the shortfalls expect prices to continue to rise.

There are a lot of new markets for tungsten, they are small market, but each adds tonnage. If you add up all the new demand you all of a sudden you have a few thousand tones. This new technology allows us to nano-coat tungsten particles with polymers to create a bendable product that replaces lead. While the technology has yet to get traction, but when it does it could comprise 5-10 percent of the market, price is an issue, and some of the products are price sensitive. These materials can be used in automotive, medical and other various industries such as nuclear power. A recent invention from Entergy Corporation uses tungsten as a radioactive shielding agent and is replacing lead in nuclear facilities. The supply shortages of tungsten will continue to push prices up until new production makes up the difference. The biggest new market which is still yet to come is the composite market.