Normalizing Quenching Tempering
Normalising, Quenching and Tempering (NQT) is a comprehensive heat treatment sequence that refines grain structure, achieves the desired hardness through quenching, and then restores toughness through controlled tempering. The process delivers a precisely balanced combination of strength, hardness, and ductility — making it the go-to treatment for structural and load-bearing components across demanding industries.
Our capability advantage
Our vertical NQT capability accommodates components up to 3.1 metres in height — one of the largest capacities available for this process. This makes us the partner of choice for long shafts, columns, piston rods, and structural members that require uniform through-hardening along their entire length.
Why choose Normalizing Quenching Tempering?
3.1 m vertical capacity
Treats long shafts and structural members other facilities cannot handle
Balanced properties
Strength, hardness, and toughness optimised to specification
Refined grain structure
Normalising eliminates prior processing defects and banding
Consistent results
Precise temperature and atmosphere control ensures batch-to-batch repeatability
Process specifications
| Max vertical component | 3.1 metres |
| Process sequence | Normalise → Austenitise → Quench → Temper |
| Applicable materials | Medium-carbon steels, Alloy steels, Structural grades |
| Quench Medium | Cold Oil (Pit Type Furnace), Polymer, Brine, Molten Salts |
Industries served
- Automobile
- Defence
- Oil & Gas
- General Engineering