The world's tin mines are relatively concentrated, mainly in Southeast Asia, Central South America, Australia's Tasmania and the former Soviet Union's Far East, followed by Western Europe and Central and South Africa. The countries with rich tin resources are China, Indonesia, Peru, Brazil, Malaysia, Bolivia, Russia, Thailand and Australia. The world tin metal resources of about 4.9 million tons, which is distributed in China (30.5%), Indonesia (16.3%), Brazil (14.5%), Bolivia (8.1%), Russia (7.1%), Peru (6.3%) Malaysia (5.1%), Australia (4.9%), Thailand (3.5%).

Global tin resource reserves are constantly changing, decreasing with mining consumption, and increasing with increasing exploration inputs. With the gradual deepening of global economic integration, the economic growth of developing countries is strong, and the consumption of tin mines remains high. In the past 10 years, the economic recoverable reserves of tin mines in the world have steadily declined.

2 China tin resources and characteristics

China's tin mine resources are very rich, and the proven reserves of tin mines account for 1/4 of the world's total. It is one of the countries with the largest reserves of tin mines in the world. According to the 2012 national mineral reserves data, China's tin resources are mainly distributed in Yunnan, Hunan, Guangdong, Guangxi, Jiangxi and Inner Mongolia. The basic reserves of the six provinces account for 98.8% of the national total, and the reserves of the six provinces account for about the whole country. 88.4% of reserves. Gejiu City is China's largest tin-producing base, known as “China's Tin Capital”, and tin production accounts for about 70% of national production. In recent years, China has successively opened up a number of new prospecting areas. A large number of large and medium-sized deposits have been discovered in the prospecting area of ​​the Yumantage Mine in Xinjiang. Among them, the amount of tungsten and tin resources in the Baigan Lake tungsten-tin ore is estimated to be 200,000 tons, and the tungsten and tungsten prospective resources are 2 million tons. Hunan is located in Qianlishan, Chenzhou City. – The extra-large tin mine in the area of ​​Qitianling has a proven resource reserve of 500,000 tons and a potential resource of nearly 700,000 tons.

The distribution of tin resources in China has the following characteristics: 1) The reserves are abundant and the distribution is relatively concentrated. The main deposits include Yunnan Gejiu Tin Mine, Yunnan Dulong Tin Mine, Guangxi Dachang Tin Mine, Guangxi Coral Tin Mine, Guangxi Shuiyanba Tin Mine, Hunan Xianghualing Tin Mine, Hunan Hongqiling Tin Mine. A new round of land and resources survey found a large number of large tungsten tin mines, adding 2.64 million tons of tin resources, which consolidated the dominant position of China's tin resources in the world. 2) The proportion of primary tin ore is high, and the total associated minerals are mostly. China's tin mines are dominated by primary tin mines, followed by sand and tin mines. Statistics show that Yunnan old tin mine associated minerals of lead, zinc, copper, bismuth, tungsten, molybdenum, tin Maguan Long associated with zinc, copper, sulfur and arsenic; the Dachang tin associated a large number of Lead, zinc, antimony , copper, tungsten, mercury, etc. 3) The quality of tin ore resources is low, mainly based on large and medium-sized deposits. China's tin mine resources are of low grade, with a proven resource reserve of 4.20% to 1%, accounting for 4.002 million tons, accounting for 84.3%; the identified resource reserves of 0.1%–0.5% grade is 2.755 million tons, accounting for 55.3. %; the identified resource reserves of 0.5%–l% are 1.447 million tons, accounting for 29%. In addition, China's tin mines are mostly large and medium-sized deposits. Large and medium-sized tin mines have identified a total of 3.06 million tons of resources, accounting for 61% of the total resources. Yunnan Gejiu and Guangxi Dachang are world-class super-large tin deposits. 4) The ore body is buried shallow and the mining conditions are good. China's tin mine resources are buried shallow, mostly within 100 meters and 300-500 meters. The identified reserves of less than 100 meters of ore bodies are 1.321 million tons, accounting for 26.5% of the total; the identified reserves with a depth of 100–300 meters are 641,000 tons, accounting for 12.8% of the total; 300–500 The identified resource reserves of rice are 1.659 million tons, accounting for 33.3% of the total.

Inconel Tube

Inconel is a family of austenitic nickel-chromium-based superalloys.
Inconel alloys are oxidation-corrosion-resistant materials well suited for service in extreme environments subjected to pressure and heat. When heated, Inconel forms a thick, stable, passivating oxide layer protecting the surface from further attack. Inconel retains strength over a wide temperature range, attractive for high temperature applications where aluminum and steel would succumb to creep as a result of thermally induced crystal vacancies. Inconel`s high temperature strength is developed by solid solution strengthening or precipitation hardening, depending on the alloy.
Inconel alloys are typically used in high temperature applications. Common trade names for Inconel Alloy 625 include: Inconel 625, Chronin 625, Altemp 625, Haynes 625, Nickelvac 625 and Nicrofer 6020

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