Product Description

Product description of Zr702 zirconium tube

Zr702 zirconium tube is an alloy tubular material made of metal zirconium and other metals. Due to the excellent properties and corrosion resistance of zirconium, zirconium alloy tubes are often used in fuel assemblies and internal structures of water-cooled reactors, and are important materials. Pure zirconium tubes are mainly used to manufacture chemical equipment, because they are expensive and not much used. The chemical composition of the commonly used zirconium tubes and their uses are shown in the table, among which the amount of zirconium-tin alloy tubes and rods is more.

Zr702 Zirconium Tube picture display

Zr702 Zirconium Tube Chemical Composition Requirements

Element	ASTM B523 / B658 Seamless & Welded Pipe and Tubes
Element	R60702	R60704	R60705
Zirconium(+Hf)	≥99.2	≥97.5	≥95.5
Hafnium	≤4.5	≤4.5	≤4.5
Iron+Chromium	≤0.2	0.2~0.4	≤0.2
Tin	-	1.0~2.0	-
Hydrogen	≤0.005	≤0.005	≤0.005
Nitrogen	≤0.025	≤0.025	≤0.025
Carbon	≤0.05	≤0.05	≤0.05
Niobium	-	-	2.0~3.0
Oxygen	≤0.16	≤0.18	≤0.18

ZR702 ZIRCONIUM TUBE Mechanical Properties Requirements

ASTM B550/B658	Tensile Strength, min.		Yield Strength, min		Elongation
Grade	ksi	MPa	ksi	MPa	min. %
R60702	55	380	30	205	16
R60704	60	415	35	240	14
R60705	80	550	55	380	16

Process characteristics of Zr702 zirconium tube

(1) Zirconium has a strong affinity with gas. It reacts with oxygen, hydrogen and nitrogen at about 200, 300 and 400 °C, respectively. The reaction is rapid at higher temperatures, so casting and heat treatment must be carried out in a vacuum furnace. When hot working in the atmosphere, proper protection should be taken and the operating time at high temperature should be shortened.

(2) The friction coefficient between zirconium and the mold is high, and it is easy to adhere to the surface of the mold; the thermal effect of plastic deformation is good, and good lubrication conditions are required during processing.

(3) The processing specification has a more sensitive influence on the performance of the product. Special attention should be paid to controlling the cold working and heat treatment process before the finished product to meet the requirements of use.

(4) The dimensional accuracy and surface quality of the pipe and bar are very high. Therefore, the process equipment should have good precision, and the tooling and mold design and production should be reasonable.

Grade	R60702
Standard	ASTM B523
Applications	Chemical processing, medical instruments etc. Aerospace, Industry, Navigation, Smelting, Chemical plants, and so on.
Packaging	Standard export plywood case or as per order
Payment	T/T.L/C,Western union, PayPal. Prepaid30% T/T against PI, pay for balance before delivery.
Delivery time	Within 7-15 days after you confirmed.

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About us

Baoji Freelong New Material Technology Development Co., Ltd loated in Baoji City--China's Titanium Valley,we are mainly doing Zirconium,Titanium,Nickel,Niobium,Tantalum etc metal material and other alloy's produce,OEM and Sales.and also exporting the goods what we make. we have a lot of trustful clients and partner.and also we were authority by some firms.At present,we were build our relationship with Australia,Korea,German,US,UK,Malaysia,AZ,Middle East,Taiwan,Etc. Our company always take the quality and service as our responsibility,We always get close even match the quality what our customer wanted and as for quality,we never say no and no reason for quality failure.

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