ASTM B394 R04200 Niobium tubes and pipes

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Niobium is a shiny, white, ductile metal. In air an oxide layer forms whose color depends on its thickness. Shades of blue, green and yellow are typical. Niobium resists corrosion due to the oxide film. The metal starts to oxidize rapidly in air at 200 oC. Niobium's chemical properties are very similar to those of tantalum is one of the five major refractory metals (metals with very high resistance to heat and wear). The other refactory metals are tungsten, molybdenum, tantalum and rhenium. With high melting point, excellent anti-corrosion property and cold workability, Nb and Nb alloy tube, rod and wire are widely used in chemistry, electronics, aviation and aerospace. Product Name: Nionium Tubes Materials: R04200 , R04210，R04251，R04261 Standard: ASTM B394 Place of origin: Baoji, China Niobium content: ≥99.5% impurity content: 0.003% Specification: OD: φ1.0-100m WT: 0.2-5.0mm Length: 200mm-6000mm Note: Manufacturing Non-standard product by customer request. Standard: ASTMB394-89 Characteristics and Advantage: high-melting-point, Low electric work function, high resistance to corrosion Apply: capacitor, Chemical equipment, electronic industry, Aerospace industry, cutting tool industry, Medical industry.

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Baoji Mingkun Nonferrous Metal Co.,Ltd

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