For item code starting with “01”, “50 ... - EIL

1 For item code starting with 01 , 50 , 60 , 71 , 72 , 74 for items with Duplex/Super Duplex Material Duplex/Super Duplex Material (Cast/Wrought/Plates) Qualification . As per EIL Spec. N0. 6-79- 0015. Supplier seeking enlistment for Duplex/Super Duplex Stainless steel shall have to furnish test reports each UNS number for tests mentioned below. Test report shall be furnished against supplies made to UOP/IFP/Exxon/BP/Chevron/IOCL/HPCL/BPCL/ EIL. All tests shall be witnessed by Third party inspection agency Clause a) Raw material Test certificate shall indicates method of steel manufacturing. Test certificates shall also indicates refining method by AOD(Argon Oxygen Decarburization) and VAD (Vacuum Arc Degassing ) or VOD(Vacuum Oxygen Decarburization and VAD. Raw material sourced shall also meet the requirements of all tests as per clause & 5 below . The corrosion tests listed under clause No.

2 5, shall be duly witnessed by any one of the reputed third party agency viz. Lloyds, BV,CEIL,DNV,TUV and EIL. Clause b)Final Product: Manufactures supplying the final product shall procure the raw materials meeting the requirements as per clause no a) above .Final products shall again meet the requirements as per clause 1,2,3,4 & 5 below. Clause1. Heat Treatment condition of the finished product with chemical analysis. Clause 2. Ferrite content as per E562. Clause 3. Microstructure photograph for inter-metallic phases as per A923. Clause 4. Mechanical properties (including Hardness) of finished product as per applicable material standard. Yield strength at 1% offset (in addition to ). Impact testing at 20 degrees and ( ) ve 30 degrees Celsius test temperature. For castings, Radiography and Dye penetrant testing reports. Clause 5. Test report for following corrosion tests: o Sulphide Stress Corrosion cracking test at test temperature 24 degrees and 90 degrees Celsius as per NACE TM077.

3 O Chloride Stress Cracking test at test temperature100 degrees, at times the actual ultimate tensile strength value for 500 hrs as per test method G36. o Pitting Corrosion test at test temperature 30 degrees and 50 degrees as per test method G48 (A). o Crevice Corrosion test at test temperature 25 degrees as per test method G48 (B). Pre -qualification criteria for Supplier with prior experience track records- The Supplier who has supplied to any of the reputed companies/Engineering consultants viz. UOP, IFP, EXXON, BPCL, CHEVRON, IOCL, HPCL, BPCL or EIL , shall be considered on production of Purchase Order and test results duly witnessed by any one of the reputed third party agencies viz. Lloyds,BV,CEIL,DNV, TUV. and EIL.. Test reports for the final products shall include results of all the tests as per clause No. 1,2,3,4 & 5. above. Report for the raw material source also shall be provided along with the results of the finished product.

4 Pre -qualification criteria for New Supplier without prior experience records- Supplier who does not have Prior Track Record, all the manufacturer's facilities and the tests mentioned in clauses B,C,D. &E shall be witnessed and certified by any one of the reputed third party Agencies viz. Lloyds, BV,CEIL,DNV,TUV and EIL .The raw material shall be sourced from mills meeting criteria as per clauses Clause a),clause 1,2,3,4, & 5 above Welding of Duplex/Super Duplex Stainless Steel-EIL spec. 6-79-0016 Rev 1. Supplier seeking enlistment for items involving welding of Duplex/Super Duplex Stainless steel shall have to furnish test reports each UNS number for tests as mentioned below. Test reports shall be furnished against supplies made to UOP/IFP/Exxon/BP/Chevron/IOCL/HPCL/BPCL/ EIL. All tests shall be witnessed by Third party inspection agency Raw material Raw material Test certificate indicating method of steel manufacturing, Refining process viz AOD or VOD and VAD & Result of all corrosion test Heat Treatment condition with chemical & Physical analysis Welding Consumables Chemical Analysis.

5 Mechanical Properties. For Super Duplex Material, Yield strength as 1% offset (in addition to ). I. Impact Tests at 20 degrees and ( ) ve 30 degrees Celsius. Ferrite content of by metallography as per E562. Result of all Corrosion (SSC,CSC, Pitting & Crevice Corrosion test) witnessed by reputed third party agency. Welding Procedure Qualification Prequalification tests samples shall include Parent Metal, Heat Affected Zone and Weld Metal. Chemical analysis. Ferrite content of tests pieces by both metallography as per E562 and by Ferritoscope. Inter-metallic phases examination as per A923. Mechanical properties (including Hardness and Bend test at 4 times the thickness (4T)). Impact testing at 20 degrees and ( ) ve 30 degrees Celsius test temperature. Radiography report. Test report for following corrosion tests: o Sulphide Stress Corrosion cracking test at test temperature 24 degrees and 90 degrees Celsius as per NACE TM077.

6 O Chloride Stress Cracking test at test temperature100 degrees, at times the actual ultimate tensile strength value for 500 hrs as per test method G36. o Pitting Corrosion test at test temperature 30 degrees and 50 degrees Celsius as per test method G48 (A). o Crevice Corrosion test at test temperature 25 degrees Celsius as per test method G48 (B). Common Requirement for the items not mentioned above:- Supply reference details of the supplies made in last three years, as per following formats: o Format PDD-HE-01 Heat Exchangers. o Format PDD-PV-01 Pressure Vessels, Columns, Reactors, etc. III. o Format PDD-G-01 for General , Refer Annexure XVI for formats. Supply references ,Financial details shall be submitted as per format A,B,C,D & E available in Annexure XVI (duly notarized/certified by statutory Auditor, strictly in line with EIL terms and condition Clause along with relevant documents ).

7 Copy of Inspection Release Note issued by Third Party Inspection Agency ,Purchase Order and Approved drawings duly Notarized shall be submitted for each item sought for Enlistment/Enhancement. Performance feedbacks from end users in Hydrocarbon Industry/large industries (like Refinery, Petrochemicals, Pipelines, Gas processing etc.) for one year satisfactory operation Copy of evaluation / approval certificate from the authorities such as: IBR/BIS/CIMFR/PESO- CCE/FCRI/ERTL/ERDA/CPRI/ASME/API etc. whichever is applicable.