CuCrZr reaches its intended property balance through controlled heat treatment, and the route should be coordinated with forging, welding and machining.
Process Sequence
A typical route may include solution treatment, rapid cooling and aging, but parameters depend on grade, section and required properties.
- Large sections need adequate soaking and transfer control.
- Machining allowance should account for scale, movement and final dimensional recovery.
- Welded assemblies may require a different sequence from solid forged components.
Distortion and Property Control
Fixtures, loading orientation and cooling uniformity affect dimensional stability.
- Critical dimensions should be inspected at defined process stages.
- Hardness and conductivity provide useful process indicators when specified correctly.
- Rework limits should be agreed before production.
Purchase Specification
The RFQ should state the desired material condition and the acceptance evidence required.
- List applicable alloy standard and target property ranges.
- Define test location and sampling where component size may cause variation.
- Request heat-treatment records only when they add useful traceability to the project.