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Copper Alloys – Ammonia Environments (SCC Test)

Copper alloys used in plumbing, heat exchangers, and electrical systems can suffer stress corrosion cracking in ammonia vapor—especially where applied or residual stresses are present.

Overview

Ammonia-induced SCC in copper alloys

Ammonia vapor can attack copper alloys at mechanically stressed locations, initiating cracks that may propagate and lead to sudden failure. The ammonia SCC test determines susceptibility so that at-risk materials and assemblies can be identified before service.

ISO/IEC 17025:2017 accredited practices and reporting.
Purpose

Why this test matters

Detection

Reveal stress-driven cracking

Detect the impact of applied or residual stresses that promote SCC in copper alloys.

Critical uses

Plumbing, HX, electrical

Supports components used in plumbing, heat exchangers, and electrical systems where reliability is critical.

Scope

Applicability

Assemblies

Whole or partial components

Applicable for both complete assemblies and partial components.

Residual stress

Manufacturing effects

Evaluates susceptibility from residual stresses introduced during manufacturing.

Highlights

Test highlights

Accelerated

Accelerated SCC test

Purpose-built to accelerate detection of stress corrosion cracking in Cu alloys.

Diagnostics

Residual-stress impact

Specifically designed to detect the impact of residual stresses on component performance.

Get in touch

Talk to an expert

Share alloy grade, product form, and acceptance criteria. We’ll confirm the ammonia SCC test plan and reporting.

ISO/IEC 17025:2017 accredited · Ahmedabad