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Heat Resistance Welded Nb Tube High Boiling Point For Heat Exchanger Tube

Baoji Towin Rare Metals Co.,Ltd
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Heat Resistance Welded Nb Tube High Boiling Point For Heat Exchanger Tube

Brand Name : TOWIN
Model Number : RO4200,RO4210
Certification : ISO9001
Place of Origin : CHINA
Price : Negotiable
Payment Terms : L/C, T/T,
Delivery Time : 2-3 weeks
Packaging Details : Standard Exporting Package or Upon Request
MOQ : Negotiable
Purity : 99.95% 3N5
Material : Niobium ingot ASTM B391
Technology : Annealing, cold rolling, cold drawing
Categories : Seamless tubing, Welded tubing
Property : Heat-resistant, corrosion resistant, good ductility
Diameter : Diameter: φ 2.0-100mm
Thickness : 0.2-5.0mm
Length : 200mm-9000mm
Delivery time : 2-3weeks
Boiling point : 4742 ℃
Melting point : 2468 ℃
Manufacturing Standard : ASTM B394-98,
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ASTM B394-98 Niobium Tube Purity 99.95%(3N5) , Niobium Welded Pipe , Welded Tubing


Grade:RO4200, RO4210

Purity: 99.95%(3N5)

Surface: tube wall should be smooth, clean, greaseless, without fissure or burr, no no oxidation or hydrogenation, no scratch or transformation

Application: To be used for manufacturing high sodium lamps, aerospace and aviation industry, structural material for engine, reactor for chemistry, heat exchanger tube, built-in component of reactor and coating material.


Description


We produce R04200, R04210 seamless tubes/pipes, welded tubes/pipes, capillary tubes which meet ASTM B 394-98 standard and the sizes can be customized as per your required dimensions. We will do our best to fulfill customers' needs and markets' demands by providing a great variety of customized products. Taking advantages of our high quality niobium oxide raw material, advanced equipment, innovative technology, professional team, we tailored your required products. You may tell us all your requirements and we dedicated in manufacturing upon your needs.


Niobium tubes are manufactured by ASTM B391 niobium ingots through annealing, cold rolling, cold drawing technology. We smelt the high purity Nb2O5 we sourcing from the Chinese biggest hydrometallurgy plant by means of aluminothermic reduction to produce niobium aluminum alloy. Then the niobium aluminum alloy will be smelted in high Vacuum EB furnace to produce niobium bars with Nb content 99.9% up, which will be smelted again in high Vacuum EB furnace to be purified and produce Niobium ingots with purity 99.95% up. The size can be tailored by the customers’ requirements. We control our products quality through the raw material source till the whole production line and finally deliver to our customers in order to make sure you purchase our products with stable and same quality for each lot. Our QC control our products quality through the raw material source till the whole production line and finally deliver to our customers in order to make sure you purchase our products with stable and same quality for each lot. They use Metallographic microscope, Hand-held X ray Fluorescence, Electronic tensile testing machine etc. instruments and tensile test to inspect the material and products and issue the COA for each lot. We have been certified by ISO9001:2015.


We are trying our best to innovate our techniques, enhance the product quality, increase the product utilization rate, lower down the costs, improve our service to supply our customers’ with higher quality products but lower purchase costs. Once you choose us, you will obtain our stable high quality products, more competitive price than other suppliers and our timely, high efficient services.


Specifications


Metallic impurities, ppm max by weight, Balance – Niobium

ElementFeMoTaNiSiTiWZr
RO4200-1405050020402050200
RO4210-21001007005010040200200

Non-Metallic impurities, ppm max by weight

ElementCHON
RO4200-1351212030
RO4210-2501515080

Mechanical properties for annealed tube/pipe,

Ultimate Tensile Strength (MPa)125
Yield strength (0. 2% offset) min, psi (MPa)59
Elongation(%, 1-in gage length)25

Our Strength


  • More than 20 years’ experiences in tantalum /niobium and its alloy smelting and deep processing, we make sure that we can provide you with the best quality products with competitive price.
  • We have entered a long-term contract with the Chinese biggest tantalum/niobium hydrometallurgy smelter to assure our stable and high quality raw material. We don’t buy any sources so called conflict mineral. We only use tantalum and niobium raw materials from ethically trustworthy source is officially confirmed by EICC certificate.
  • In addition, we offer various kinds of services to our customers such as OEM, forging services, sintering services, laser cutting services, rolling services, milling services, trade in services etc. Please feel free to send us the enquiries as long as you require services.
  • The full and strict quality control system throughout the whole production line from the raw material till the products ready for delivery, we reject the unqualified products timely to make sure only qualified products can be received by our customers.
  • We have been verified by ISO 9001Quality Management System Authentication. We now owns core equipment such as domestic advanced EB furnace, high vacuum Annealing Furnace, plate and strip rolling mill, High precision surface grinding machine etc. Advanced equipment not only produces our fine quality products but also ensure us provides the processing services such as smelting, forging services, sintering services, laser cutting services, rolling services, milling services etc.

For more inquiry and information, please don’t hesitate to contact us at any time. We also expect your visit to our factory to witness our whole infrastructure, technology, products and our team.


Packing:
1) Within fiberboard wooden case or box
2) As per request of the client
Shipping:
1) Shipping products by DHL or UPS or any press designated by the buyer
2) Transport by air
3) Delivery within 20-35days


Product Tags:

nb pipes

      

welded tube

      
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