Quench hardening

Heat treatment for high-performance components

Some applications and sectors require special heat treatments such as quench hardening of steel and other metals. With more than 30 years of experience and a specialist partner, we deliver consistent, high-quality hardening for components we manufacture in-house, so parts achieve the hardness, wear resistance and service life required for demanding duty cycles.

Typical supplies include stainless-steel screws/bolts, general hardware, and parts for automotive (small shafts, shafts, joints, valves), hydraulic fittings and hydraulics.

Quench hardening: more hardness and wear resistance

Quench hardening increases hardness, resistance and fatigue life, enabling parts to work under high mechanical stress. To avoid defects such as brittleness and cracking, the process must control temperature, soak time and cooling rate precisely—balancing hardness with core toughness.

Our treatments deliver parts that are safer, more durable and lower-maintenance, reducing downtime and the risk of failure.

Our process

We begin with a detailed technical review of the drawing: material, end use and mechanical properties guide the most suitable recipe to optimise the hardness-toughness trade-off.

The process follows three main stages:

1. Heating (austenitising): parts are brought to target temperature in digitally controlled furnaces for uniform, repeatable heating.
2. Quench: rapid cooling in the most suitable medium (oil, water or forced air) to achieve the required hardness without damaging the microstructure.
3. Tempering: a subsequent thermal cycle relieves residual stresses, improves toughness and helps prevent cracking or brittleness.

Through Industry 4.0 integration we monitor parameters in real time, ensuring consistent outcomes and compliance with spec. The result: optimised mechanical properties and superior performance.

Why choose Emme-TI for quench hardening

• On-time delivery
  Production is scheduled to avoid bottlenecks and delays, meeting agreed timelines.
• Precision & advanced control
  Industry 4.0 monitoring of key parameters ensures uniform, repeatable results that match your specification.
• Minimised structural defects
  An optimised process lowers the risk of cracks, distortion or brittleness, improving reliability.
• Tailored treatments by sector
  Custom recipes for automotive, hydraulics, aerospace and precision tooling, aligned with CNC-machined geometries.