MIFL has made special efforts for Research and Quality Assurance. The Company will strive to provide high quality products to its customers. We aim to enjoy the customers’ full confidence in the future.

QA Department

• Gases in Ingot: We can supply Hydrogen 2PPM (max), Nitrogen 90 PPM (max)& for forging quality Low Carbon grades we can certify 02 content of 25 PPM(max), 20 PPM (max) for medium carbon & Alloy Steel and 15 PPM (max) forhigh carbon grades like ball bearing.
• Forging Ratio: We do both Upset & Drawing forging. We ensure 4:1(min)Reduction Ratio & higher reduction Ratio is achieved depending on Raw material(Ingot) size & finish shape and size of job.
• Heat Treatment Facility: For imparting quality heat treatment, to the forged products, the shop is equipped with gas fired fully automated P LC controlled heat treatment furnaces ( 2 Nos. each of Slow cooling, Hardening & Tamperingfurnaces); 2Nos. of Quench tanks (water & Oil) with agitation & circulation facility for controlling bath temperature with resistance temperature detector and digital display & 2 Nos. overhead crane for loading & unloading of materials. Temperature Control – PLC managed fully automatic combustion control SCADA monitoring & SCADA Recording of heating cycle graph.

• Quality Assurance: We conduct several tests like Internal soundness, Hardness,Dimensions, Magnetic Particle test, dye Penetrant test & Destructive tests suchas Chemical, Microstructures, Grain size, Inclusion, Tensile, Impact (Charpy &Izod) & Jominy End Queen test. Residual Stress measurement can also be doneeither by Ring core Method or X-Ray diffraction Method.

Details are as follows:

• Internal Soundness: We can guarantee internal soundness to 2mmFBH. If any customer desires to take below 2mm FBH we can examinethe size, Ingot reduction ration etc. & inform acceptance.
• Hardness: We need range of 30 BHN (min.) However in special case20 BHN range can be agreed.
• Dimension: Our standard practice for tolerance is +3, -0 in proofmachine drawing except stated otherwise.
• Grain size: We guarantee fine grain size of 5-8 as per ASTM. However,most of the time our grain size is ASTM 6-8. For specific requirementof grain size 7-8 we can examine and give acceptance on case to casebasis.
• Chemical Composition: We certify the chemical composition as perStandard Emission Spectrometer. Restricted chemistry with 4 pointsofCarbon range, 15 points of Manganes range, 10 point of Cr & Ni canalso be agreed. Sulphur within 0.010% & Phosphorous within 0.015%can also be agreed.
• Inclusion Ratings: We do test & certify Inclusion Ratings 1.5(A,B,C,D)Thin & Thick Series(max) as per ASTM E45.
• Austenitic Stainless Steel:-: We certify the physical properties as perStandard. However, we can examine special Physical requirement byclients& certify if feasible. We do tests like Tensile by Instron Machine,Impact Test (Charpy & Izod)at Room temperature as well as minustemperature, Hot Tensile & Jominy End Quench Test.
• Grades produced at MIFL Durgapur for use in Oil & Gas Industries:-
• Carbon Steel :- C10E, C15E, EN32, C45, C55, C60, SAE1045, SAE1050
• Low Alloy Steel – 17Cr3, 16MnCr5, 20MnCr4, AUS8620.
• High Alloy Steel – 18CrNiMo7-6, 14NiCrMo13-4, 20NiCrMo6-4,20NiCrMo13-4, AISI4320, EN36
• Austenitic Stainless Steel: – AISI 316, AISI 316L, AISI304, AISI 304L, AISI 307, AISI1317, AISI 321.
• Martensitic Stainless Steel: – AISI 410, AISI 420, SA 812 F6a.
• Duplex Stainless Steel: – SA 182F50, SA 182F51, SA 182F52, SA 182F53, SA 182F55, SA 182F60, SA 182 fA61.

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