क य म हर वभ ग 2 हम र स दभ: स एमड 2/16: 6911 30 08 2016 वषय: आई एस 6911क लए परण एव नरण क य जन, ड क: एसटआई/6911)/3 अग)त 2016. सम धक र व र अन म #दत %ट नल स इ%प त क, चदर. तथ प01य (आई एस6911:1992) क 4लए परण एव 6नरण क, य जन, एसटआई (ड क: एसटआई/6911/3 अग%त 2016 त र त क य >वयन ह त स ल?न ह 1म ख (स एमड 2) (ह)त /-) सभ 5 य/श ख /एमटड /एमएसड क य 7लय8 क प9रच लत (अAण प छक यल ) व D. ब (क.म.0व. 2) 6त4ल0प : आई ट एस क ब आईएस व बस इट/इ H न ट पर अपल ड करन क 4लए CENTRAL MARKS DEPARTMENT-2 Our Ref: CMD-2/16:6911 30 08 2016 Please find enclosed Scheme of Testing & Inspection, STI Doc: STI/6911/3 August 2016 for Stainless Steel Plate, Strip & Sheet as per IS 6911:1992 duly approved by Competent Authority,for immediate implementation. Head (CMD-2)(sd/-) Circulated to All BOs/ROs/MTD/MSD Head (ITS): for hosting on intranet please. (ArunPucchakayala) Scientist-B, CMD-2
SCHEME OF TESTING AND INSPECTION FOR CERTIFICATION OF STAINLESS STEEL PLATE, SHEET AND STRIP as per IS 6911 : 1992 1. LABORATORY A laboratory shall be maintained which shall be suitably equipped and staffed where different tests given in the specification shall be carried out in accordance with the methods given in the specification. 1.1 All testing apparatus/ measuring instruments shall be periodically checked and calibrated as appropriate and records of such checks/calibration shall be maintained. 2. TEST RECORDS - All records of tests and analysis shall be kept in such forms, charts, and tables which are approved by Bureau. Note: The existing forms, etc., as being maintained by the manufacturers may be retained. These forms, however, shall contain all the information required for operating this scheme of testing and inspection. 2.1 Copies of any records of calibration charts maintained by the manufacturer that may be required by BIS shall be made available at any time on request. 3. Quality Control- It is recommended that, as far as possible. Statistical Quality Control (SQC) methods may be used for controlling the quality of the product during production as envisaged in this scheme [ See IS 397(Part 1), IS 397(Part 2), IS 397(Part 3) and IS 397(Part 4)]. 3.1 In addition efforts should be made to gradually introduce the Quality Management System in accordance with IS/ISO 9001. 3. CALIBRATION- All testing apparatus/measuring Instruments shall be periodically checked and calibrated and records of such checks/calibration shall be maintained. 4. STANDARD MARK: The Standard Mark as given in Column (l) of the First Schedule of the licence shall be legibly marked on each package/bundle of the product, provided always that the product to which this mark is applied conforms to every requirement of the Specification IS 6911:1992. 4.1 For each consignment of ISI certified material conforming to IS 6911: 1992 there shall be a test certificate which shall contain ISI Mark on right corner of certificate, the cast number, the grade designation, Surface finish, Heat treatment conditions and corresponding test results (as given in Annex I) 5. MARKING AND PACKING: 5.1 MARKING : Every package of sheets, strips and coils shall be legibly marked with paint or any other marking system showing the name or trade mark of the manufacturer,
weight, thickness, size, steel designation, finish and the cast number or identification marks by which the materials may be traced to the cast or casts from which they are made. 5.2 Material with suitable packing shall be provided to prevent damages and deterioration in quality during storage, handling and transport. The exact method of packing and weight of each packet shall be mutually agreed to between the purchaser and the supplier. 6. METHOD OF MANUFACTURE: Unless otherwise agreed in order, the processes used in making the steel and the product are left to the discretion of the manufacturer. When so desired, the purchaser shall be informed of the steel making process. 6.1 Unless otherwise agreed to between the purchaser and the supplier and stated in the order, material shall be supplied with trimmed edges. Material with mill edge may be accepted with mutual agreement between the purchaser and the supplier. 7. LEVELS OF CONTROL: Inspections and tests at various levels of control (Table 1) shall be carried out on all quantities of steel intended to be covered under BIS Certification Marks Scheme and appropriate records thereof shall be maintained in accordance with para 2 above. On the basis of inspection and test-results, decision regarding conformity or otherwise of lots of steel to the requirements of the specification shall be taken as indicated below. 7.1 CONTROL UNIT: For the purpose of this scheme the material or part thereof representing the same cast, condition, and form and subjected to same surface finish shall constitute a control unit. 7.1.1 CHEMICAL COMPOSITION: Ladle analysis of steel shall conform to the requirements as laid down in specification IS 6911:1992. 7.1.1.2. The analysis of the steel shall be carried out according to IS 228 and its relevant parts or any other established instrumental/chemical method. In case of dispute the procedure given in IS 228 and its relevant parts shall be referee method. The manufacturer shall declare the chemical/established instrumental method adopted for chemical analysis. Also details of the reference material accompanied with test certificate used for calibration and frequency of calibration shall be declared by the licensee for the established instrumental method. 7.1.2 FREEDOM FROM DEFECTS: The material shall be of uniform quality consistent with the good manufacturing and inspection practice. The finished material shall be free from harmful defects, such as, scale, rust, blisters, laminations, cracked edges and seams. 7.1.3 DIMENSIONS AND TOLERANCES: All sheets and strips shall conform to dimensional tolerances specified in IS 6911:1992.
8. MECHANICALPROPERTIES: 8.1 SAMPLING: Sampling shall be as per Clause 9.1 and 9.2 of IS 6911:1992. 8.2 Tests: Tests for Mechanical Properties shall be carried out as per Cl. 10 of IS 6911:1992. 8.3 Calibration of Tensile Testing Machine: Tensile Testing Machine shall be calibrated preferably once in six months and in any case not less than once in a year. 8.4 Other Tests: Any test, other than those specified in the specification, may be conducted subject to mutual agreement between the purchaser and the supplier. 9 RE-TEST: 9.1 Re-tests for Chemical Analysis: If the results of the product analysis do not meet the composition requirements given in Tables 1 and 2 of 6911:1992, unless otherwise agreed to between the purchaser and the manufacturer, two new samples shall be taken on different pieces from the same cast. Should the two analysis satisfy the requirements, the lot represented shall be accepted. Should either of the samples fail, the material shall be taken as not complying with this standard. 9.2 Re-tests for Mechanical Properties: If the sample selected as specified in 9.1 of IS 6911:1992 fails to meet the requirements given in Table 3 of IS 6911:1992, two further samples shall be selected from the same lot for making fresh tensile test piece and tested. The material shall be considered to conform to the requirement as given in Table 3 of IS 6911:1992, if both the additional tests are satisfactory. Should either of the test pieces fail the manufacturer shall have the right, if he so desires to re-heatreat before two fresh samples are taken for testing. Should the two test pieces satisfy the requirement as given in Table 3 of IS 6911:1992, the lot represented shall be accepted. Should either of the samples fail, the material shall be taken as not complying with this standard except that the manufacturer may reheattreat(not more than twice) the material represented and resubmit samples for testing. Any other retest may be carried out as per mutual agreement between the purchaser and the supplier. 10. REJECTION: Records shall be maintained for reasonable time for which information relating to the rejection of material on the basis of weight which do not conform to IS 6911 shall be available. Such rejected material shall not be mixed up with that which conforms to the specification. 11. SAMPLE: The licensees shall supply, free of cost, the sample or samples required in accordance with Bureau of Indian Standards Certification Marks Regulation: 1988 as subsequently amended, from his factory or godowns. The Bureau shall pay for the samples taken by it from the open market.
12. REPLACEMENT: Whenever a complaint is received soon after the goods with Standard Mark have been purchased and used, and if there is adequate evidence that the goods have not been misused, defective goods or their components are replaced or repaired free of cost by the licensee in case the complaint is proved to be genuine and the warranty period (where applicable) has not expired. The final authority to judge the conformity of the product to the Indian Standard shall be with the Bureau. 12.1 In the event of any damages caused by the goods bearing the Standard Mark, or claim being filed by the consumers against BIS Standard Mark and not conforming to the relevant Indian Standard, entire liability arising out of such non-conforming product shall be of licensee and BIS shall not in any way be responsible in such cases. 13. STOPPAGE AND RESUMPTION OF MARKING: The marking of the product shall be stopped under intimation to Bureau if, at any time there is some difficulty in maintaining the conformity of the product to the specification, or the testing equipment goes out of order, or if directed to do so by Bureau for any reason. The marking may be resumed as soon as the defects are removed and the Bureau gives the permission to do so. The information regarding resumption of marking shall also be sent to Bureau. 14. PRODUCTION DATA -The licensee shall send to BIS, as per the enclosed Performa-1 to be authenticated by a Chartered Accountant, a statement of quantity produced, marked and exported by him and the trade value thereof at the end of each operative year of the licence.
IS 6911:1992 STAINLESS STEEL SHEET AND STRIP FOR (LEVEL OF CONTROLS) TABLE 1 (PARA 7 of SCHEME OF TESTING AND INSPECTION) S.No. Requirement Cl. No. Reference Sample Levels of Control Remarks Lot Size Frequency 1. Freedom from Each Plate/sheet/ Defects strip 6 IS 6911:1992 Each Plate/sheet/ strip Each Plate/ sheet/ strip If found defective, item shall be rejected and not be marked. 2. Chemical composition 7 Analysis of Steel shall be carried out as per IS 228 or any other established instr/ Chem. method a) Ladle Analysis 7.1 IS 6911:1992 Table 1 b) Product Analysis 7.2 IS 6911:1992 Table 2 One - Each heat Applicable for primary steel producers only - - - i) For primary steel producers, if required by the purchaser. Refer Cl.9.1.2 of IS 6911:1992 IS 6911:1992 Table 2 - - - ii) For re-rollers, in case of material received from primary producers of stainless steel, no further testing is required if the material is ISI marked and received with test certificate iii) See Note-1 4 Mechanical Properties 10
Tensile test: a)0.2 Percent proof Stress b) Tensile Strength c) Percentage Elongation 10.1 IS 6911:1992 IS 1608 Table 4 & Table 6 *One - Each control unit *Refer Cl.9.2 of IS 6911:1992 d) Hardness 10.2 Table 4, Table 5 & Table 6 *One - Each control unit e)bend Test(if required) 10.3& 10.3.1 IS 1599 Table 4 One - Each control unit 5 Erichsen Cupping Test 11, 11.1 &11.2 Table 7 IS 6911:1992 IS 10175 (part 1) Refer Cl.11 of IS 6911:1992 Subject to agreement between the purchaser and the supplier. 6 Corrosion Resistance 12 IS 6911:1992 The material shall be tested for corrosion resistance if and as required by the purchaser. IS 10461(part 1) IS 10461(part 2) 7 Surface Finish 15 IS 6911:1992 Each Plate/sheet/ strip Table 8 Each plate/ sheet/strip Each plate/sheet/ strip If found defective item shall be rejected and not be marked.
8 Dimensional Tolerance 17 Tables 9 to 19 IS 6911:1992 Adequate inspection to ensure each item to be within the limits of specification. 13 Other Tests Any test, other than those specified in this specification, may be conducted subject to mutual agreement between the purchaser and the supplier. Note-1: For re-rollers not having testing facilities for carrying out product analysis, each cast of material received shall be got tested at BIS Recognised labs/gr-ii category lab /Government labs having NABL Accreditation/Labs of Central & State Universities/IITs in case of non-isi material received from primary producers of stainless steel prior to the effective date of implementation of the Stainless Steel Products (Quality Control) Order, 2016.
ANNEX 1 (Para 3 of Scheme of Testing and Inspection) XYZ IRON AND STEEL COMPANY TEST CERTIFICATE FOR STAINLESS STEEL PLATE, SHEET AND STRIP STANDARD MARK Test Cert. No.: Date: To M/s We certify that the material described below fully conforms to IS 6911:1992 chemical composition and Mechanical properties of product as tested in accordance with the Scheme of Testing and Inspection contained in BIS certification marks license No. CM/L- are as indicated below against each order No. etc. (Please refer to IS 6911:1992 for details of specification requirements) TEST RESULTS Chemical Order Dimensions Cast Steel Quantity Analysis Erichsen Mechanical Properties Condition No. No. Designation (Tonnes) C Si Mn Ni Cr S P Cu N Cupping 0.2% Tensile Hardness Elongation & (%) (%) (%) (%) (%) (%) (%) (%) (%) Test Proof Strength (%) Surface Strength (N/mm 2 ) Finish (N/mm 2 ) The material supplied conforms to the stipulated rolling tolerances. Remarks: SIGNATURE DESIGNATION FOR XYZ IRON & STEEL COMPANY (It is suggested that size A-4 paper (210X297) be used for this certificate)
Period covered: Name of Licensee : CM/L No. : PROFORMA -1 PROFORMA FOR OBTAINING PRODUCTION DETAILS Name of Articles (s) IS No. Grade/Type/Size/Variety /Class/Rating 1.1 Brand/Trade/Name(s) of BIS Certification Marked Products 2.0 Total production of the articles(s) licensed for certification marking 2.1 Total production of the article(s) conforming to Indian Standard 3.0 Production covered with BIS Certification Mark and its Value a) Quantity b) Value (Rs.) 3.1 Brand Name used on production covered under BIS Certification Mark 3.2 Calculation of marking fee on unit-rate basis; Marking Fee per unit a) Unit b) Quantity covered with BIS Certification Mark c) Marking fee rounded off in whole rupees as obtained by applying unit rates given in (a) on quantity given in (b) Note: In case a clause is not applicable, suitable remarks may be given against it. 4.0 Quantity not covered with BIS Certification Mark. If any, and the reasons for such non-coverage 4.1 Brand Name under which non certified goods were sold 5.0 Quantity Exported with BIS Standard Mark and its value 5.1 Brand Name under which BIS Certified goods are exported 6.0 Authentication by Chartered Accountant