Quality Assurance Framework

Inspection Facilities

• Material Inspection

  Verification of raw material integrity and compliance with specifications.

• Product Inspection:

  Comprehensive dimensional and surface evaluations at multiple production stages.

Laboratory Capabilities

• Chemical Tests:

  Conducted using advanced spectrometers to ensure exact chemical composition.

• Physical Tests:

  Strength, toughness, and ductility testing under controlled conditions.

Non-Destructive Examination (NDE)

• Techniques such as Magnetic Particle, Dye Penetrant, and Ultrasonic Testing ensure internal soundness and defect-free forgings.

Technical Excellence

Gas Control in Ingots:

Hydrogen ≤ 2 PPM, Nitrogen ≤ 90 PPM.

Oxygen levels certified at:

• 25 PPM (max) for low-carbon grades
• 20 PPM (max) for medium carbon and alloy steels
• 15 PPM (max) for high-carbon grades (e.g., ball bearing steels)

Forging Ratio:

Both upset and drawing forgings are performed, maintaining a minimum reduction ratio of 4:1, with higher ratios achieved depending on ingot size and final geometry.

Heat Treatment Facility:

MIFL operates a fully automated, PLC-controlled heat treatment shop with:.

• Gas-fired furnaces for slow cooling, hardening, and tempering
• Two quenching tanks (water and oil) with agitation and temperature control
• SCADA-based monitoring and digital recording of heating cycles for precision traceability

Comprehensive Testing & Quality Validation

Our QA department ensures full traceability and consistent mechanical integrity through the following tests:

• Internal Soundness:

  Guaranteed up to 2mm FBH (finer as per client request)

• Hardness:

  +3 / –0 (unless otherwise specified)

• Dimensional Tolerance:

  30 BHN range (20 BHN for special cases)

• Grain Size:

  Typically ASTM 6–8, with fine grain structure guaranteed up to ASTM 5–8

• Chemical Composition:

  Controlled with restricted chemistry for precision carbon, manganese, chromium, and nickel levels

• Inclusion Ratings:

  ASTM E45, not exceeding 1.5 (A–D) thin & thick series

Material Grades & Capabilities

• Carbon Steels:   C10E, C15E, EN32, C45, C55, C60, SAE1045, SAE1050
• Low Alloy Steels:   17Cr3, 16MnCr5, 20MnCr4, AUS8620
• High Alloy Steels:   18CrNiMo7-6, 14NiCrMo13-4, 20NiCrMo6-4, 20NiCrMo13-4, AISI4320, EN36
• Austenitic Stainless Steels:   AISI 304, 304L, 307, 316, 316L, 317, 321
• Martensitic Stainless Steels:   AISI 410, AISI 420, SA 812 F6a
• Duplex Stainless Steels:   SA 182 F50, F51, F52, F53, F55, F60, FA61