OCI COPPER PRIVATE LIMITED CUSTOMER MATERIAL DESCRIPTION Field Lead Forging P - Preforming by SPECIFICATION TG60066 W - Witness by DRAWING 4-136-03-00001 RR - Record Revie Sr. Stage Characteristics Method Reference Acceptance Extent Record of Inspection No. Doucment Criteria of Check Format P W RR 1 Raw Material a) Chemical Composition Suppier's TC TG60066 TG60066 Per Lot Suppier's TC 1* 2 b) Oxygen Content Suppliers's TC TG60066 TG60066 (0.040 max) Lot Supplier's TC 1* 2 2 Internal inspection in Proce a) Workmanship & Appearance Visual 4-136-03-00001 4-136-03-00001 100% Work T/C 1 2 b) Dimension checking Measuring Instruments 4-136-03-00001 4-136-03-00001 100% Work T/C 1 2 c) Heat Treat Ment Self or Out Sourced 4-136-03-00001 4-136-03-00001 Per Lot HT Chart 2 d) Physical Testing NABL accredited Lab. TG60066 TG60066 1 / Heat Test Certificate 1 2 e) Conductivity Testing Conductivity Meter (Sel TG60066 TG60066 100% Work T/C 1 2 f) Ultra Sonic Test NABL accredited Lab. TG60066 TG60066 100% Test Certificate 1 2 3

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Sheet1OCI COPPER PRIVATE LIMITEDPage 1 of 1CUSTOMERLEGENDMATERIAL DESCRIPTIONField Lead ForgingP - Preforming by1. VendorSPECIFICATIONTG60066W - Witness by2. BHEL/ TPIDRAWING4-136-03-00001RR - Record Review

Sr.StageCharacteristicsMethodReferenceAcceptanceExtent Record ofInspection RemarksNo.DoucmentCriteriaof CheckFormatPWRR1Raw Materiala) Chemical CompositionSuppier's TC TG60066TG60066Per LotSuppier's TC1*2In absence of Mill T.C Check Test Report to be submitted

b) Oxygen ContentSuppliers's TCTG60066TG60066 (0.040 max)LotSupplier's TC1*2

2Internal inspection in Processa) Workmanship & AppearanceVisual4-136-03-000014-136-03-00001100%Work T/C12Finish as per DrawingSurface check for any harmful discontinuity by visual testingb) Dimension checkingMeasuring Instruments4-136-03-000014-136-03-00001100%Work T/C12As per Spec.

c) Heat Treat MentSelf or Out Sourced4-136-03-000014-136-03-00001Per LotHT Chart2HT Report / Chart to be submitted

d) Physical TestingNABL accredited Lab.TG60066TG600661 / HeatTest Certificate121 sample / Heat to be preserved and duly stamped by BHEL/TPI.Which to be supplied to BHEl along with materiale) Conductivity TestingConductivity Meter (Self)TG60066TG60066100%Work T/C12

f) Ultra Sonic TestNABL accredited Lab.TG60066TG60066100%Test Certificate12Shall be performed by NDTlevel II & report shall be3signed with seal & cert. no.

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