R60705 Zirconium Wire

Key features: Extremely strong zirconium activity, strict control of oxygen, hydrogen, and iron contamination throughout the process; Nuclear grade R60705 limits hafnium Hf to less than 0.01%; Industrial grade Hf is relaxed, with the same process route, but the impurity control standard is much lower. Complete process: raw material batching → vacuum melting and casting → forging and roughing → hot rolling billet → multi-pass cold drawing + intermediate vacuum annealing → surface acid washing / polishing → finished annealing → flaw detection + physical property testing → cutting / winding
1. Key characteristics
Corrosion resistance: Resistant to hydrochloric acid, dilute sulfuric acid, organic acids, chloride media; It performs much better than titanium alloys in strong reducing media; The structure is stable below 350℃, resistant to stress corrosion.
High-temperature strength: Compared to 702 zirconium, the high-temperature strength and creep resistance have significantly improved.
Low neutron absorption cross-section, suitable for nuclear-related applications.
Cold working performance is acceptable, but strict prevention of iron and carbon contamination is required during the processing. It is prone to hydrogen absorption and brittleness.
2. Product form and specifications
 Supply form: straight wire / round wire, cold-drawn processing; State: annealed, cold processed state
 Common diameters: Φ0.1mm to Φ6.0mm, customizable fine wire
 Testing: chemical composition, mechanical properties, eddy current flaw detection, ultrasonic flaw detection (for high-end orders)
3. Main applications
Nuclear industry: Positioning frame weaving wire for fuel components, pressure tube structural wire, corrosion-resistant load-bearing components in the reactor (nuclear grade requires separate reduction of hafnium)
Chemical equipment: Springs, filters, fasteners, welding filler wire for zirconium equipment in harsh corrosive conditions (matched with R60705 base material)
Pharmaceutical / Pharmaceutical: Reactor internals, corrosion-resistant woven nets (good biocompatibility)
A small amount is used for strong corrosive load-bearing components in marine and aerospace applications
Compared to R60702 pure zirconium: 705 strength has significantly improved, while retaining excellent corrosion resistance, better resistance to hydrogen embrittlement and high-temperature creep resistance.