MISHRA DHATU NIGAM LIMITED

A Public Sector Enterprise

CIN L14292TG1973GOI001660

Quality Management

        MIDHANI shall provide Quality Metal & Alloy products that consistently meet all applicable requirements. MIDHANI remains committed to enhancement of customer satisfaction by continually improving the effectiveness of Quality Management System to drive Organizational Performance.

MIDHANI Quality Assurance System has approvals from :

  • Directorate General of Aeronautical Quality Assurance
  • Directorate General of Civil Aviation
  • Directorate General of Quality Assurance (Recipient of Self Certification Status)
  • Department of Space
  • Department of Atomic Energy
  • Source Approval of Boeing Co, USA( For Titanium & Titanium Alloy Products)
  • Successful Quality Audit by EADS-AIRBUS
ISO 9001
ISO/IEC 17025
AS 9100
  • Quality Control facilities

            Our comprehensive testing services provide customizable, reliable analytical results to fit the engineering needs with state of the art facilities with accreditations and approvals.

            A comprehensive range of testing and evaluation services covering chemical analysis, mechanical, non-destructive and magnetic testing are rendered by MIDHANI.

    Destructive Testing
    • Sample/specimen preparation
    • Heat Treating
    • Metallographic
    • Corrosion
    • Mechanical and Magnetic Testing
    • Chemical Analysis
    Nondestructive Testing
    • Dye-Penetrant inspection
    • Ultrasonic – contact and immersion inspection
    • Eddy Current inspection
    • Visual inspection
    • Magnetic Particle inspection
    Precision specimen preparation facility

            In-house machine shop encompasses clean, temperature controlled environment and state of the art equipment including: CNC lathes, wire EDMs, surface grinder, and notching low-stress grinders. Our reputation for quality machining and superior engineering experience can make sub-size specimens & Chevron Notch to very close tolerances.

    Heat treatment

            Simulated heat treatment cycles (Hardening, tempering, Solution annealing and ageing) on the specimens are performed.

    Mechanical Testing

            The Mechanical Testing Labs at MIDHANI test materials in accordance with customer specific specifications as well as all applicable ASTM Standard Test Methods.

    Test Facility Specification/Standards
    Tensile Testing at Room temperature (UTM 200KN) ASTM E 8
    Tensile Testing at 1000°C max
    Tensile Testing at Sub-zero( UTM 250KN)
    Provision for Round and sheets samples
    ASTM E 21
    Impact Testing at Room temperature
    Impact Testing at Subzero Temp.(up -70°C)
    • Charpy test equipment up to 216 ft-lbs
    • Izod cum charpy Impact test equipment upto 300J
    • Izod test equipment upto 164J
    ASTM E 23
    Hardness Testing
    (Brinell -3000kg/Rockwell hardness 150kg /Vickers hardness 50kg )
    ASTM (E10/E92/E18)
    Micro hardness ASTM E 384
    Fracture Toughness (UTM 100KN) ASTM E 399
    Creep & Stress Rupture
    48 Machines with 20KN load-max temperatures 1050°C
    2 Machines 30KN load-max temperatures 1150°C
    ASTM E 150, E 139
    Low Cycle Fatigue (LCF)
    Axial mode (Wave forms Triangular, sinusoidal, trapezoidal)
    Room temperature and High temperature
    ASTM E606
    High Cycle fatigue (HCF)
    Rotating bending mode
    (3000 RPM to 10000 RPM)
    ASTM E466
    BS 3518
    Erichsen Cup Tester
    Thickness: 0.1 to 2.0mm, width 70 to 90mm
    IS 1756
    ASTM E643
    Metallographic

            Metallography services include specimen preparation, Optical Microscopy, In-situ Metallography, Phase analysis by Microhardness testing.

    Micro Structure (Grain Size)
    Micro Structure with Photograph
    ASTM E112
    Macro Structure ASTM E 381 & A 604(For Steels)
    AMS 2380 (For Ti alloys)
    Inclusion Rating ASTM E 45 Method – D
    IGC testing ASTM A 262 Practice – A
    Coating Thickness Microscopic Method
    Chemical Analysis

            Our chemical Lab also employs X-Ray, Atomic Absorption, Optical Emission & Ultra-voilet visible Spectrometry and gas analysis, wet Chemistry. Optical Emission Spectrometry (OES or Arc Spark) for routine analysis of metals and their alloys. The OES has been designed specifically to meet the demands of quality in Iron, Cobalt, Titanium and Nickel-based alloys (ASTM E353).

            Carbon, Sulfur, Hydrogen, Oxygen, and Nitrogen content in steel and titanium is determined by the inert gas fusion thermal conductivity method (ASTM E1019 and ASTM E1447) utilizing Leco instrumentation.

            Chemical compositional analysis is also carried out using X-ray Fluorescence Spectrometry, PMI, semi-quantitative analysis using Mobile Optical Emission Spectrometry.

  • Test Facilities for Private Entities

    The list of test facilities which can be made available to private entities for testing of materials/Alloys
    Procedure to avail the test facilities by a private entity:
    • A private entity shall submit the end use certificate.
    • The Nodal officer of MIDHANI will study the technical specs of the test to be carried out.
    • The slot availability along with quote will be communicated to private entity in case the available test facilities are capable of meeting the technical requirements.
    • The private entity shall place a Service Order including acceptance of payment terms as per the quote and handover the job at the MIDHANI Premises to carry out the test(s).
    • The test(s) will be carried out as per standard procedures/specification by MIDHANI Personnel only.
    • The test reports along with the job will be handed over to the private entity.
    General terms & conditions:
    • The test services to private entities will be made available, only in case of spare capacity, over and above meeting the internal needs.
    • All transportation of job (including loading / unloading) from / to MIDHANI’s testing premises is the responsibility of the private entity.
    • Personnel from private entities to produce proof of Identity / authorization letter.
    • Inspection of the job will be done by security staff before moving the job to/from MIDHANI premises.
    • The testing charges are will be provided on request.
    • VAT / Service / other taxes extra as applicable.
    • MIDHANI will not be responsible for loss / damage to the samples while carrying out the test(s).
    • If any damage occurs to equipment / property / personnel resulting from the testing of the job of private entity, the private entity should bear the expenses in repair / replacement of the facility. All necessary insurance coverage for the job shall be the responsibility of the private entity.
    Contact Person
    • Y Nagesh,
      Dy. Manager (Marketing),
      Mishra Dhatu Nigam Limited, Hyderabad
      Phone: 040-24184477, Fax :04024341250
      E-mail: nagesh.y@midhani-india.in