“Quality You Can Trust. Tested for Performance. Delivered with Precision.”
Quality Policy
At Sigma Alloy Cast, we are committed to delivering products that consistently meet customer expectations and international quality standards.
Our quality policy is focused on:
- Maintaining the highest standards in manufacturing
- Continuous improvement in processes and systems
- Customer satisfaction through reliable and defect-free products
- Compliance with global standards such as ISO, ASTM, and DIN
Quality Overview
Quality is integrated into every stage of our production process — from raw material selection to final dispatch.
Our dedicated quality control team ensures that each casting is manufactured with precision, consistency, and reliability, making it suitable for critical industrial applications.
Testing & Inspection Facilities
We have a well-equipped in-house laboratory with modern testing instruments to ensure accurate and reliable results.
Chemical Analysis
We verify the chemical composition of raw materials and molten metal using:
- Spectrometer analysis
- Grade verification for alloy and steel castings
Mechanical Testing
To ensure strength and durability, we perform:
- Tensile strength testing
- Hardness testing (Brinell / Rockwell)
- Impact testing
Non-Destructive Testing (NDT)
We conduct advanced NDT methods to detect internal and surface defects without damaging the component:
- Ultrasonic Testing (UT)
- Magnetic Particle Testing (MPT)
- Dye Penetrant Testing (DPT)
- Radiography Testing (RT) (as per requirement)
Dimensional Inspection
We ensure dimensional accuracy using precision instruments:
- Vernier calipers and micrometers
- Height gauges and slip gauges
- Layout inspection for complex geometries
- Inspection as per customer drawings
Heat Treatment & Process Control
We maintain strict control over heat treatment processes to achieve desired mechanical properties:
- Controlled temperature cycles
- Furnace monitoring and calibration
- Uniform hardness and strength across components
In-Process Quality Control
Quality checks are conducted at every stage of production:
- Raw Material Inspection
- Pattern & Mould Inspection
- Molten Metal Testing
- Pouring Process Monitoring
- Fettling & Finishing Inspection
- Final Inspection before Dispatch
Documentation & Traceability
We ensure complete traceability and proper documentation for every product:
- Material Test Certificates (MTC)
- Heat number tracking
- Inspection and test reports
- Customer-specific quality documents
Final Quality Assurance
Before dispatch, every casting undergoes a final quality check to ensure:- Conformance to specifications
- Defect-free surface and structure
- Required mechanical properties
- Readiness for industrial application
Our Commitment
At Sigma Alloy Cast, quality is not just a requirement — it is our responsibility.
We continuously invest in technology, skilled manpower, and process improvement to deliver products that meet the highest standards of performance and reliability.