Quenching Oils — Iloquench for Heat Treatment

Controlled-cooling quenchants for every hardness profile — from fast conventional oils to high-temperature martempering fluids.

Quick Answer

Castrol Iloquench heat-treatment quenching oils — fast-quench grades for tough steels, slow-quench grades for distortion-sensitive parts, vacuum-quench grades for clean-furnace operations. Selection by alloy, part geometry, target hardness and distortion budget. Iloquench 1 for general high-speed quench, Iloquench 21 for delayed quench (low distortion), Iloquench 25 vacuum grade. Drainage and oxidation life monitored via specific tests beyond standard oil analysis.

Product Range

Iloquench 1

Fast conventional quench oil

Standard fast-quench oil for carbon and low-alloy steels.

Iloquench 2

Medium-speed quench

Medium-speed oil for medium-alloy steels and larger sections.

Iloquench 400

Martempering oil

High-temperature martempering oil for distortion-sensitive components (bearings, gears).

Typical Applications

Gear and shaft heat treatment
Bearing-ring quenching
Forging and casting heat treatment
Automotive powertrain heat treatment

Why buy from Vasundhara Specialities

As the authorized Castrol industrial distributor for Andhra Pradesh, every drum and pail we supply is sourced directly from Castrol India’s Silvassa, Paharpur and Patalganga plants with full batch traceability. Our Bhimavaram warehouse stocks the complete quenching oils range for 48–72 hour delivery across AP, and our technical team is available on-site for application trials, coolant sampling, and training. Paired with our CoolantCare fluid management programme, you get not just a supplier but a lubrication partner committed to lowering your total cost of lubrication.

Frequently Asked Questions

Which grade for bearing quenching?

Iloquench 400 (martempering) is the industry default — it controls distortion by holding the part just above M-start before air-cooling, then tempering.

How do I monitor quench-oil condition?

Track viscosity, total acid number, flash point and quench-severity (GM Quench-O-Meter or Tensi cooling curve). Castrol's CoolantCare covers full quench-oil lab analysis.

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