Quality — Balaji Aluminium Extrusions Pvt. Ltd.
Quality

Quality is a Process, Not a Badge

Every lot passes three documented checkpoints — inward, in-process, pre-dispatch — and ships with a traceable record.

±0.1 mm
Dimensional Tolerance
0.03 mm
Concentricity Control
350 MPa
Tensile Strength · Up To
16 bar
Hydrostatic Testing
Methodology

Three-Stage Quality Control

Stage What Is Verified
1 Inward
OES alloy chemistry vs IS/EN/ASTM limits · billet hardness (HW) by alloy · surface & geometry sampling · non-conforming material quarantined — never enters the press
2 In-Process
First-off dimensional check after every die change · extrusion temperatures logged per lot · die hardness verified post-nitriding · anodizing bath parameters monitored per run · powder coat thickness per lot
3 Pre-Dispatch
UTM tensile test on critical alloys · VMM dimensional check vs drawing · visual surface inspection · lot record closed before release
Infrastructure

Testing Laboratory

Instrument What It Verifies
OES Spectrometer Full alloy chemistry vs IS/EN/ASTM limits — all 6xxx alloys
Universal Testing Machine (UTM) Tensile, yield, elongation — per alloy & temper
Visual Measuring Machine (VMM) Dimensions & geometry vs customer drawing
Vickers Hardness Tester Post-ageing hardness (HW) — temper compliance by alloy
Bend Testing Machine Ductility & crack resistance
Ultrasonic Testing Machine Internal voids & sub-surface porosity
Hydrostatic Testing Rig Tube & hollow profile integrity at 16 bar
Metallurgical Microscope Grain structure, weld seams, casting integrity
Anodizing Lab Film thickness (eddy current) · sealing (acid dissolution) · bath chemistry
Control

Traceability & Process Quality

Lot Traceability

Every dispatched lot links:

  • Billet heat no. & casting date
  • Spectrometer chemistry report
  • Extrusion date & press
  • Ageing batch & HW result
  • Dispatch reference & customer order

Recall-ready at any point in the supply chain.

Anodizing Quality Parameters

Film thickness 10 µm standard, up to 25 µm on request · sealing verified by acid dissolution · bath chemistry logged per run.

Process Quality Tools

For automotive & defence customers:

  • Control Plans — per critical process stage
  • Process FMEAs — risk mitigation on critical profiles
  • SPC-capable data capture — at key parameters
  • Customer-specific requirements — tracked in QMS
Control Plan PFMEA SPC
Every test documented, every lot traceable, every deviation logged — because quality that cannot be proven has not been achieved.