High-Strength Custom Chromium Zirconium Copper Parts – C18150

Short Description:

Product Specifications
Name： Custom Chromium Zirconium Copper Parts (CuCrZr Components)
Standard： ASTM B768 / RWMA Class 2, UNS C18150, RoHS Compliant, REACH Compliant
Material： C18150 (Chromium Zirconium Copper, Cr 0.5-1.5%, Zr 0.03-0.3%)
Surface： Precision Machined, Optional Polished or Plated
Size Range： Diameter/Width 10mm – 300mm (custom per drawing)
Length/Height： 20mm – 800mm (fully customizable)
Product Features:
Excellent electrical and thermal conductivity · Superior strength retention at high temperatures · Outstanding softening and wear resistance · Good fatigue performance under cyclic loading · Non-magnetic and spark-resistant · Reliable in repeated heating/cooling cycles · Easy machining and forming
Application Field:
Resistance welding electrodes and holders, Plastic injection mold inserts, High-current electrical contacts, Heat sinks and cooling blocks, Spot welding tips and wheels, Die casting plungers, Automotive and aerospace connectors, Power generation components

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Custom Chromium Zirconium Copper Parts – Process & Quality Assurance Statement
Our custom chromium zirconium copper parts are engineered for applications requiring sustained conductivity and mechanical strength at elevated temperatures, where standard copper would soften or degrade.

Key process features

Production follows a precise metallurgical sequence to maximize precipitation hardening:
●Alloy Melting: High-purity copper is alloyed with controlled chromium and zirconium additions under protective atmosphere.
●Casting & Hot Working: Ingots are cast and hot extruded or forged into near-net blanks with uniform structure.
●Solution Annealing: Parts are heated to dissolve alloy elements, followed by rapid quenching.
●Cold Working: Controlled reduction refines dimensions and prepares for aging.
●Precipitation Aging: Low-temperature aging develops optimal hardness, strength, and conductivity balance.
●Precision Machining: CNC turning, milling, and grinding achieve exact tolerances and smooth surfaces per your drawings.
●Final Protection: Thorough cleaning and light oiling ensure parts arrive ready for use without oxidation.

Quality control system

● Full traceability from raw alloy melt to finished part
● 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 on samples)
• Dimensional accuracy (CMM; typical tolerance ±0.05mm on key features)
• Surface finish and defects (profilometer + visual checks)
• Conductivity verification (typically ≥80% IACS after aging)
● 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.
● ISO 9001:2015 certified facility ensures every custom chromium zirconium copper part delivers the reliable conductivity, strength, and durability your high-performance applications demand.