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    INS-P-006-Procedure For Inspection of Plates

    Uploaded by

    Deepak
    This document outlines the procedure for inspecting plates received from suppliers at Larsen & Toubro Limited's HED - Hazira Works facility. It describes inspecting test certificates, visually examining plates for issues like surface imperfections, dimensionally measuring plates, chemically analyzing samples, checking mechanical properties through tests, and ultrasonically testing thick plates. Plates that do not meet requirements will be rejected while conforming plates will be cleared to enter stock.

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    Attribution Non-Commercial (BY-NC)
    Download as DOC, PDF, TXT or read online from Scribd

    INS-P-006-Procedure For Inspection of Plates

    Uploaded by

    Deepak
    336 views4 pages
    This document outlines the procedure for inspecting plates received from suppliers at Larsen & Toubro Limited's HED - Hazira Works facility. It describes inspecting test certificates, visually examining plates for issues like surface imperfections, dimensionally measuring plates, chemically analyzing samples, checking mechanical properties through tests, and ultrasonically testing thick plates. Plates that do not meet requirements will be rejected while conforming plates will be cleared to enter stock.

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    MECH

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    INS-P-006-Procedure for Inspection of Plates

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    This document outlines the procedure for inspecting plates received from suppliers at Larsen & Toubro Limited's HED - Hazira Works facility. It describes inspecting test certificates, visually examining plates for issues like surface imperfections, dimensionally measuring plates, chemically analyzing samples, checking mechanical properties through tests, and ultrasonically testing thick plates. Plates that do not meet requirements will be rejected while conforming plates will be cleared to enter stock.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as DOC, PDF, TXT or read online from Scribd
    Download as doc, pdf, or txt
    336 views4 pages

    INS-P-006-Procedure For Inspection of Plates

    Uploaded by

    Deepak
    This document outlines the procedure for inspecting plates received from suppliers at Larsen & Toubro Limited's HED - Hazira Works facility. It describes inspecting test certificates, visually examining plates for issues like surface imperfections, dimensionally measuring plates, chemically analyzing samples, checking mechanical properties through tests, and ultrasonically testing thick plates. Plates that do not meet requirements will be rejected while conforming plates will be cleared to enter stock.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as DOC, PDF, TXT or read online from Scribd
    Download as doc, pdf, or txt
    of 4

    PROCEDURE No.

    HED-HZW-INS-P-006

    REV No.

    R0

    Page 1 of 4

    LARSEN & TOUBRO LIMITED


    HED HAZIRA WORKS Quality control & Inspection

    Procedure for Inspection of Plates

    R0 REV. NO.

    First issue REVISION DETAILS

    30-07-2003 DATE

    HPP/BDP PREP. BY

    SPG/PR/PDL APPR. BY

    This document is the property of Larsen & Toubro Limited and must not be copied or lent with out their permission in writing.

    PROCEDURE No

    HED-HZW-INS-P-006

    REV. No.

    R0

    Page 2 of 4

    Procedure for Inspection of plates 1. Scope: This procedure covers visual inspection, dimensional inspection and test report verification of all plate material procured for specific project or stock. Besides ferrous and nonferrous metals & alloys, the material includes all types of clad plates. 2. Documents: The following documents shall be referred: Incoming Material Record (IMR) Purchase Order (PO) Additional Requirement of Material (ARM), if any Test Certificate (TC) Position No against BaaN itemNo for identification 3. Applicable specification/code: The Spec./Code/Std. stated below shall be referred and applied, if the applicable drawing/ code of construction/material spec. called for: ASME SEC IIA*/B* ASME SEC. VIII Dv 2* DIN* Drawing Customer specification *Refer latest edition if applicable addition not specified in drgs. 4. Measuring instruments: The following instruments shall be used. Measuring Tape, Vernier Caliper/Micrometer. 5. Inspection: 5.1 TC verification and conformation: Verify identification marking on plate material and test certificate. Review test certificates as per material Spec & ARM. Chemical & mechanical test results and heat treatment undergone shall conform to the requirements and limits of applicable spec./code/ARM/PO/Drg. Requirements of additional tests of coupon plate after simulation heat treatment is to be verified and confirmed. A review stamp shall be put on the backside of the original TC, if all required information is reported and the test results are within the permissible limit.

    This document is the property of Larsen & Toubro Limited and must not be copied or lent with out their permission in writing.

    PROCEDURE No

    HED-HZW-INS-P-006

    REV. No.

    R0

    Page 3 of 4

    Procedure for Inspection of plates 5.2 Visual Inspection: The following shall be visually checked on the material surface and confirmed. Material Specification Heat No & plate No Manufacturers Name / Trademark Third party stamp - if applicable Project No. / Position No. for project item Surface finish as per SA 20 of ASME SEC II Part A* Absence of surface imperfection / pitting* Absence of laminations along the edge / thickness Absence of clad disbonding along the edge / thickness for clad plates. * If the surface finish on ferrous material is not acceptable, the plate shall be shot blasted to the required finish. 5.3 Dimensional measurement: The dimension shall be checked and confirmed in accordance with the requirements stated below. Type of plates All Dimensions to be checked Width Length Thickness Extent of check 100%

    6. Additional checks: The following additional checks shall be done on the plate material procured from local traders. Random checks, wherever specified, shall be resorted to 100%, if any unacceptable result is revealed. 6.1 Chemical Analysis or Positive Alloy Metal Identification (PAMI): Chemical analysis or positive alloy metal identification with Arc Met 930 spectro analyser shall be performed in accordance with the requirements specified below. The chemical analysis of all elements shall meet the requirements of material spec./ ARM. 6.1.1 6.1.2 Random chemical checks per heat of plates for C.S. material of any thickness. Chemical check per plate for all low alloy steels, stainless steels and non-ferrous material of any thickness.

    This document is the property of Larsen & Toubro Limited and must not be copied or lent with out their permission in writing.

    PROCEDURE No

    HED-HZW-INS-P-006

    REV. No.

    R0

    Page 4 of 4

    Procedure for Inspection of plates 6.2 Check Test for Physical Properties: A check test for mechanical properties (UTS, % Elongation and impact, if called by the material spec.) as per the material specification shall be performed on a suitable coupon removed from the material, in accordance with the requirements specified below. The test results shall meet the requirements of material spec./ARM. 6.2.1 One check per heat per thickness of all CS plates. 6.2.2 One check test per heat of all low alloy steel, stainless steel and non-ferrous alloy / metal. 6.3 Ultrasonic Examination: Plates as detailed below shall be ultrasonically tested and evaluated as a minimum requirement as per ASME Sec.V.SA 435 or as per applicable material Spcification/ARM. 2.1 2.2 All plate material of C.S. Low Alloy Steel and Stainless Steel as per the applicable material specification or ARM. All C.S. Low Alloy Steel and Stainless Steel plate material above 20 mm in thickness as per SA 435.

    7. Inspection Ruling: 7.1 Unacceptable plates shall be rejected and documented in the respective Incoming Material Record (IMR). 7.2 Non-conformities and incomplete test reports in TC, if any, shall be reported to the purchaser concerned in a NCR/discrepancy report for further action. 7.3 All acceptable plates shall be cleared on the respective IMR for taking in stock. 7.4 Items identified on acceptable plates shall be recorded on MCR. The inspector shall affix his stamp on the item identified with Part No., Project No., Material Spec. and Heat/Plate No. for further work.

    This document is the property of Larsen & Toubro Limited and must not be copied or lent with out their permission in writing.

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