Industrial Nuclear-Grade Large C18150 Chromium Zirconium Copper Custom Parts

Short Description:

Product Specifications
Name： Large Chromium Zirconium Copper Nuclear Custom Parts (Heavy CuCrZr Nuclear Components)
Standard： ASTM B768, RWMA Class 2, UNS C18150, ASME Section III (Nuclear Grade Suitability), RoHS Compliant, REACH Compliant
Material： C18150 (Chromium Zirconium Copper, Cr 0.5-1.5%, Zr 0.03-0.3%)
Surface： Precision Machined, Smooth Finish, Optional Polished
Size Range： Diameter/Width 50mm – 500mm (custom per drawing)
Length/Height： 100mm – 3000mm (fully customizable)
Product Features:
Excellent electrical and thermal conductivity · Superior strength retention at high temperatures · Outstanding softening and wear resistance · High fatigue strength under cyclic loading · Reliable performance in repeated heating/cooling cycles · Good machinability for large nuclear-grade components · Consistent properties across thick sections
Application Field:
Nuclear power plant reactor components, Control rod drive mechanisms, Heat exchanger parts, Resistance welding electrodes in nuclear facilities, High-current electrical connections in nuclear systems, Cooling system fittings, Power generation safety-critical parts

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Large Chromium Zirconium Copper Nuclear Custom Parts – Process & Quality Assurance Statement
Our large chromium zirconium copper nuclear custom parts are specifically developed for nuclear power applications requiring sustained conductivity and mechanical strength at elevated temperatures and under radiation environments, where standard copper would soften or lose performance.

Key process features

Production employs advanced metallurgical and machining techniques to maintain uniform properties in substantial sizes while meeting stringent nuclear-grade requirements:

●Alloy Preparation: High-purity copper is alloyed with precise chromium and zirconium additions in controlled induction furnaces.
●Casting: Semi-continuous casting produces large ingots or hollow billets with homogeneous composition and minimal segregation.
●Hot Extrusion or Forging: Material is hot worked into near-net shapes, refining grain structure and achieving high density.
●Solution Heat Treatment: Parts are solution annealed at high temperature and rapidly quenched to create a supersaturated matrix.
●Cold Working & Aging: Controlled reduction followed by precipitation aging develops optimal hardness, strength, and conductivity balance.
●Precision Machining: CNC turning, boring, and grinding achieve exact tolerances and smooth surfaces per your nuclear-grade drawings.
●Final Protection: Thorough cleaning and light oiling prevent oxidation during storage and global shipping.

Quality control system

● Full traceability from raw alloy melt to finished nuclear custom part
● Comprehensive material test certificates and heat treatment reports supplied with every shipment
● Sample retention ≥3 years for third-party verification (SGS, BV, TÜV, etc.)
● 100% inspection of critical parameters:
• Chemical composition (optical emission spectrometry)
• Mechanical properties (tensile, hardness, and conductivity tested at multiple locations)
• Dimensional accuracy (CMM and ultrasonic gauges; typical tolerance ±0.5mm)
• Surface quality and roundness (profilometer + visual checks)
• Internal soundness (full ultrasonic scanning)
● Internal standards exceed ASTM B768 requirements. Typical C18150 aged properties:
Tensile strength ≥450 MPa, Hardness ≥140 HB, Electrical conductivity ≥80% IACS, Excellent stability up to 500°C without significant softening.
● ISO 9001:2015 certified facility ensures every large chromium zirconium copper nuclear custom part delivers consistent, reliable performance in your most demanding nuclear power applications.