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    Good company with nice service and high quality and high reputation. One of our reliable supplier , goods are delivered in time and nice package.
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  • Shaanxi Peakrise Metal Co.,Ltd
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    The goods purchased this time are very satisfied, the quality is very good, and the surface treatment is very good. I believe we will order the next order soon.
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ASTM B392 Bright Annealed Niobium Round Bar RO4200 RO4210 Niobium Rod

Place of Origin China
Brand Name PRM
Certification ISO9001
Model Number custom
Minimum Order Quantity 1kg
Price Negotiate
Packaging Details Plywood case
Delivery Time 5~7days
Payment Terms T/T
Supply Ability 5000kgs/month

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Product Details
Product Name Niobium Rod Grade RO4200,RO4210
Diameter Φ3.0~Φ100mm Standard ASTM B392
Availability Status M Or Y Quality ISO9001
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Niobium Rod 3.0mm


Bright Annealed Niobium Round Bar


Niobium Round Rod

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Product Description


RO4200 RO4210 Niobium Rod


1. Specifications Of Niobium Rod:


Product Name: Niobium rod

Material: RO4200, RO4210,Nb1,Nb2
Standard:  ASTM B392
Purity:  ≥99.95%

Surface: bright

State: Annealed state (M) or hard state (Y)



Chemical Composition:


Grade RO4200 RO4210 Nb1 Nb2 NbZr1 C-103



Zr 0.02 0.02 0.02 0.02 0.8~1.2 0.7
Ti 0.02 0.03 0.002 0.005 0.02 0.7~1.3
C 0.01 0.01 0.01 0.02 0.01 0.015
N 0.01 0.01 0.015 0.05 0.01 0.015
O 0.015 0.025 0.015 0.025 0.015 0.023
H 0.0015 0.0015 0.001 0.005 0.0015 0.002
Ta 0.1 0.3 0.10 0.25 0.10 0.5
Fe 0.005 0.01 0.005 0.03 0.005 -
Si 0.005 0.005 0.005 0.02 0.005 -
W 0.03 0.05 0.03 0.05 0.03 0.5
Ni 0.005 0.005 0.005 0.01 0.005 -
Mo 0.01 0.02 0.010 0.05 0.01 -
Cr 0.002 - 0.002 0.01 0.002 -
Hf 0.02 0.02 - - - 9.0~11.0
Nb Remain Remain Remain Remain Remain Remain


Mechanical requirements:


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



18000 (125) 12000 (85) ≥25





ASTM B392 Bright Annealed Niobium Round Bar RO4200 RO4210 Niobium Rod 0ASTM B392 Bright Annealed Niobium Round Bar RO4200 RO4210 Niobium Rod 1


2. Application of Niobium Rod:


Niobium and niobium alloy rods and wires are widely used in fields such as chemistry, electronics, aviation and aerospace due to their high melting point, corrosion resistance, and good cold working properties.


Niobium and niobium alloy rods are used as structural materials for aero engines and rocket nozzles, internal components of reactors and cladding materials, and to produce various corrosion-resistant parts that are resistant to nitric acid, hydrochloric acid or sulfuric acid corrosion conditions. Adding zirconium to niobium can significantly improve the oxidation resistance and strength of the material. Niobium and niobium-zirconium alloy wire are widely used in the manufacture of high-pressure sodium lamps and electrolytic capacitor anode leads.


3. Appearance quality:


The surface of cold-worked and annealed rods is free of cracks, folds, pores, metallic and non-metallic inclusions, heavy skin, residual lubricants, oxides and other dirt.


There are no cracks, folds, heavy skin and other defects on the surface of the hot-processed rods that would affect subsequent processing. The surface of the rod is allowed to have grooves with a depth not exceeding half of the diameter tolerance. Dents, abrasions, scratches, spiral stripes formed during straightening and slight forging marks are allowed.


Company Profile:


Shaanxi Peakrise Metal Co., Ltd. is an rich experienced tungsten,molybdenum, tantalum, niobium, titanium,zirconium,nickel non-ferrous metal production enterprise,main products include tungsten-copper alloy, molybdenum-copper alloy, tungsten-molybdenum alloy, high specific gravity tungsten alloy, tantalum alloy,niobium alloy,titanium alloy and other more than 100 kinds of products.we have more than 13 years of rich production experience and export experience, and solve related import and export problems for customers. , one-stop solution to all difficulties.Products are exported to Taiwan, Ukraine, South Korea, the United States, Australia, Germany, Iran and other countries, and have established long-term good cooperative relations with customers. Our products are highly recognized and evaluated by customers.



ASTM B392 Bright Annealed Niobium Round Bar RO4200 RO4210 Niobium Rod 2



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ASTM B392 Bright Annealed Niobium Round Bar RO4200 RO4210 Niobium Rod 3


ASTM B392 Bright Annealed Niobium Round Bar RO4200 RO4210 Niobium Rod 4