Chemical composition
- R60702: It is an α-βtitanium-alloy.html> titanium alloy, the main component is titanium, containing 0.12-0.25% palladium and trace elements such as iron, carbon, oxygen, nitrogen and hydrogen.
- R60704: The main component is zirconium, containing 1.00%-2.00% tin, 0.20%-0.40% iron + chromium, and a small amount of carbon, nitrogen, hydrogen, oxygen and other elements, zirconium + hafnium ≥ 97.20%, hafnium ≤ 4.5%.
- R60705: The main component is zirconium, containing 2.5% niobium, zirconium + hafnium ≥ 95.5%, oxygen ≤ 0.18%.
Physical properties
- Density: R60702 density is 4.48g/cm³; R60704 density is about 6.51g/cm³; R60705 density is not explicitly mentioned, but zirconium density is generally around 6.5g/cm³.
- Melting point: R60702 melting point is 1670℃; R60704 melting point is 1800℃;
Zr-5 alloy R60705 melting point is not explicitly mentioned, but zirconium melting point is generally around 1852℃.
Mechanical properties
- R60702: minimum tensile strength is 345MPa, minimum yield strength is 275MPa, elastic modulus is 105GPa, elongation at break is 20%-25%.
- R60704: tensile strength ≥415MPa, yield point ≥240MPa, elongation at break ≥14%.
Corrosion resistance
-R60702: It has excellent corrosion resistance in strong acid, seawater, chlorine and other environments. The presence of palladium makes it resistant to crevice corrosion and stress corrosion cracking.
-R60704: It shows excellent corrosion resistance in various environments such as seawater, acid and alkali. The molybdenum and nickel in the alloy improve its ability to resist pitting, crevice and intergranular corrosion.
-R60705: It has excellent corrosion resistance, especially in some specific chemical environments.
Application fields
-R60702: It is widely used in aerospace, marine and chemical industries, such as manufacturing reactor vessels, heat exchangers, desalination plants, medical implants, etc.
-R60704: It is commonly used in chemical processing, medical equipment, aerospace, navigation, nuclear industry and other fields, manufacturing chemical reactors, piping systems, aircraft and spacecraft structural components, etc.
-R60705: It is mainly used in H fuel components or general industrial fields, such as chemical equipment, petroleum components, electronics, medical, electroplating industry, etc.
Implementation standards for metal zirconium plates, rods, tubes and wires:
Zirconium plates
The implementation standard is ASTM B551, which covers different grades of zirconium plates such as R60702, R60704, and R60705, and specifies their chemical composition, size specifications, mechanical properties, etc. For example, the thickness of R60702 zirconium plates ranges from 0.5mm to 50mm, the width can reach 1000mm, and the length can reach 2000mm.
Zirconium rods
The implementation standard is ASTM B550/B550M-07, which specifies the chemical composition, mechanical properties, etc. of zirconium rods of grades R60702, R60704, and R60705. Its diameter ranges from 6.0mm to 300mm, and its length varies.
Zirconium tube
It implements ASTM B523 or ASTM B658 standards, including seamless and welded types, and also has different grades such as R60702, R60704, R60705, which stipulates the size range, chemical composition, mechanical properties and other requirements. The size ranges from 1/2″ to 12″, and the wall thickness covers specifications such as sch 5s, sch 10s, sch 40s, and sch 80s.
Zirconium wire
It implements ASTM B550 standards, which stipulates the chemical composition of R60702, R60704, R60705 and other grades of zirconium wire. Its thickness or main dimension is less than or equal to 0.1875 inches, and the shape can be round, flat or special.
