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ASTM B394 Nb1 Seamless RO4200 Niobium Tube

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ASTM B394 Nb1 Seamless RO4200 Niobium Tube

ASTM B394 Nb1 Seamless RO4200 Niobium Tube
ASTM B394 Nb1 Seamless RO4200 Niobium Tube

Large Image :  ASTM B394 Nb1 Seamless RO4200 Niobium Tube

Product Details:
Place of Origin: China
Brand Name: Sanhui
Certification: ISO9001
Model Number: Customized
Payment & Shipping Terms:
Minimum Order Quantity: 10 Kilograms
Price: Negotiable
Packaging Details: Exported plywood case with foam inside
Delivery Time: 20 days afer order
Payment Terms: T/T
Supply Ability: 5000 Kilograms per month
Detailed Product Description
Material: Niobium Surface: Polished,burnishing
Condition: Vacuum Annealing/temper/quench Colour: Grey Metallic
Shape: Tube Density: 8.57g/cm3
High Light:

nb1 nb tube


ro4200 niobium pipe


astm b394 niobium tube

ASTM B394 Nb1 Seamless RO4200 Best Price High Purity Niobium Tube


Specification of Niobium and Niobium tube

1. Material: RO4200-1, RO4210-2
2. The Size of niobium tube: OD1.0-150mm*TK 0.2-5.0mm*L

3. Length:200mm-9000mm
4. Standard: As per ASTM B394-98
5. Purity: >=99.9% or 99.95% with best Niobium price


6. Table 1. Grade of Niobium tube

Grade Suplying state Diameter Lengtha Voluntary Standers





Cold state(Y)





>500 ASTM B392-03

Thermal processing state(R)








Thermal processing state(R)








Thermal processing state(R)


20-80 500-2000

Note : the length of Annealing niobium tube being supplied is not greater than 2500mm.



7. Table 2. Niobium tube Chemical PPM


designation chief component impurities maximum
Nb Fe Si Ni W Mo Ti Ta O C H N
Nb1 Remainder 0.004 0.003 0.002 0.004 0.004 0.002 0.07 0.01 0.004 0.0012 0.002
Nb2 Remainder 0.005 0.005 0.005 0.01 0.01 0.004 0.1 0.015 0.01 0.0015 0.01



8. Table 3. Mechanical requirements of Niobium tube (annealed condition)

Grade Tensile strengthδbpsi (MPa),≥ Yield strength δ0.2, psi (MPa),≥ Elongation in 1"/2" gage length,%,≥



18000 (125) 10500 (73)



Special requirements of niobium pipe to be agreed on by the supplier and buyer of negotiations


Niobium pipe.jpg


Niobium pipe.jpg



Niobium pipe.jpg



Contact Details
Zhengzhou Sanhui Refractory Metal Co., Ltd.

Contact Person: Ailsa

Tel: 86 - 18937104178

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