Customized Niobium Rods ASTM B394-98 99.95% RO4200-1 RO4210-2 Dia 3mm Semiconductor

Introduction

Niobium rods are made of niobium powder by forging and polishing. They are used in steel, metallurgy, atomic energy, superconductors, medical equipment, etc.

Niobium is a refractory metal. Refractory metals are metals with a higher melting point (1772°C) than platinum. In refractory metals, the energy required to hold individual atoms together is particularly high. Refractory metals have high melting point, low vapor pressure, high elastic modulus and high thermal stability. Refractory metals are also characterized by a low coefficient of thermal expansion. Compared to other refractory metals, niobium has a relatively low density of only 8.6g/ cm3.

Chemical Composition:

Application

Niobium and niobium alloy rod and wire are widely used in the fields of chemistry, electronics, aviation and aerospace because of their high melting point, corrosion resistance and good cold working performance. Niobium and niobium alloy bars are used as structural materials for aircraft engines and rocket nozzles, reactor internal components and cladding materials, and various corrosion resistant components under conditions of nitric, hydrochloric or sulfuric acid corrosion.

FRQ

Commercial CE SAA ROHS Certificate Outdoor IP65 Waterproof 20W 30W 50W 100W 200W 12V LED Flood Lights

Q1. Can I have a sample order for led light?

A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.

Q2. What about the lead time?

A: 3-5 days for Sample preparing ,8-10 working days for mass production.

Q3. Do you have any MOQ limit for led light order?

A: Low MOQ, 1pc for sample checking is available.

Q4. How do you ship the goods and how long does it take to arrive?

A: Ship by DHL, UPS, FedEx or TNT. It takes 3-5 days to arrive. Airline and sea shipping also optional.

Q5. How to proceed an order for led light?

A: Firstly let us know your requirements or application.

Secondly We quote according to your requirements or our suggestions.

Thirdly customer confirms the samples and places deposit for formal order.

Fourthly We arrange the production.

Q6. Is it OK to print my logo on led light product?

A: Yes. Please inform us formally before our production.

Q7: Do you offer guarantee for the products?

A: Yes, we offer 5 years warranty to our products.

Q8: How to deal with the faulty?

A: Firstly, Our products are produced in strict quality control system and the defective rate will be less than 0.2%.

Secondly, during the guarantee period, we will send new lights with new order for small quantity. For defective batch products, we will repair them and resend them to you or we can discuss the solution including re-call according to real situation.