2.1 All records of tests and inspection shall be kept in suitable forms approved by the Bureau.

Transcription

1 SCHEME OF TESTING AND INSPECTION FOR CERTIFICATION OF CARBON STEEL CAST BILLET INGOTS, BILLETS, BLOOMS AND SLABS FOR RE-ROLLING INTO STEEL FOR GENERAL STRUCTURAL PURPOSES ACCORDING TO IS 2830: LABORATORY - A laboratory shall be maintained which shall be suitably equipped and staffed where different tests shall be carried out in accordance with the methods given in the specification. 2. TEST RECORDS 2.1 All records of tests and inspection shall be kept in suitable forms approved by the Bureau. 2.2 All the testing equipment/measuring instruments shall be periodically checked and calibrated and records of such checks/ calibration shall be maintained. 2.3 Copies of any records and other related papers that may be required by Bureau shall be made available at any time on request. 3. QUALITY CONTROL 3.1 It is recommended that, as far as possible, Statistical Quality Control methods may be used for controlling the quality of the product during production as envisaged in this Scheme [IS 397 (Part 1) to IS 397(Part -4)]. 3.2 In addition, efforts should be made to gradually introduce a Quality Management Systems in accordance with IS/ISO MARKING 4.1 Standard Mark- The Standard Mark as given in Column (l) of the First Schedule of the licence shall be marked as per clause 13.2 & 13.2 of the specification, provided always that the product to which this mark is applied conforms to every requirement of the Specification and this Scheme. 4.2 Other Marking- In addition, each cast billet ingot, billets, blooms and slabs (including continuously cast) shall be legibly stamped or painted with the following: a) Manufacturer s name or trade-name; b) Cast number; c) Colour coding for designations C 15, C 18 and C 20 as given in Table 4; and d) The ends of cast billet ingot, billets, blooms and slabs (including continuously cast) shall be suitably painted as per agreement between purchaser and the manufacturer. Page 1 of 6

2 4.3 TEST CERTIFICATE- For each consignment of BIS Certified cast billet ingot, billets, blooms and slabs (including continuously cast) conforming to IS 2830, there shall be test certificate which shall contain the Standard Mark, the cast number, grade designations and the corresponding test results (See Annexure I). 5. MANUFACTURER- 5.1 Steel shall be manufactured by any process of steel making except the bassemer process. It may be followed by secondary refining Steel shall be supplied semi-killed or killed. Rimming steel may also be supplied subject to a special agreement between the purchaser and the manufacturer. 5.2 Carbon steel cast billets ingots, billets, bloom and slabs (including continuously cast) may also be supplied in copper-bearing quality. In which case steel shall be designated with a suffix Cu. 6. SUPPLY OF MATERIAL- General requirements relating to supply of steel shall conform to IS LEVELS OF CONTROL 7.1 The tests, as indicated in Table 1 and at the levels of control specified therein, shall be carried out on the entire production covered by this scheme and appropriate records and charts maintained in accordance with paragraph 2 above On the basis of test results, decision regarding conformity or otherwise of lots of steel billets ingots, billets, blooms and slabs to the requirement of the specification shall be taken as indicated below: Chemical Composition (Ladle A nalysis) : Chemical composition of billet ingots, billets, blooms and slabs obtained by analysis of one sample from each heat shall conforms to the requirements laid down in clause 6 of IS: Product analysis shall also be carried out on each cast. Drilling for check (Product) analysis shall be taken from the location as specified in clause 8 and as shown in Fig. 1 of IS: Dimensions and Tolerances All dimensional requirements as per Clause 11 of IS: 2830 shall be satisfied within the tolerances specified in Clause REJECTION 8.1 The sub-standard or defective materials, which do not conform to the specification shall be disposed off as scrap and the Standard Mark shall be defaced from the rejected material by cutting into pieces. 8.2 Records providing the detailed information regarding the rejection of material and the mode Page 2 of 6

3 of their disposal shall be maintained. Such material shall in no case be stored together with that conforming to the specification. 9. SAMPLES- The licensee shall supply, free of charge to the Bureau and to its authorized representatives, the sample required in accordance with the Bureau of Indian Standard (Certification) Regulations, from his factory or godown as and when required by the Bureau. BIS shall pay for the samples taken from the market. 10. REPLACEMENT 10.1 Whenever a complaint is received soon after the goods with the Standard Mark have been purchased and used, and if there is adequate evidence that the goods have not been misused, defective goods shall be replaced, 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 conformity of the product to the Indian Standard shall be with Bureau. The firm shall have own complaint investigation system as per IS/ISO In the event of any damages caused by the goods bearing the Standard Mark, or claim being filed by the consumer against BIS Standard Mark and not confirming to the relevant Indian Standard, entire liability arising out of such non confirming product shall be of licensee and BIS shall not in any way be responsible in such cases. 11. STOP MARKING- The marking of the product shall be stopped under intimation to the 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. The marking shall also be stopped immediately if directed to do so by the Bureau for any reason. The marking may be resumed as soon as the defects are removed or when the Bureau gives the permission to do so. The information regarding the date of resumption of marking shall be sent to the Bureau. 12. PRODUCTION DATA- The licensee shall send to the Bureau as per the enclosed proforma a statement of the quantity produced, marked and exported by him and the trade value thereof for every quarter of the operating period of the licence. The statement is required to be forwarded to BIS at the end of every quarter of operative period. Table 1. Page 3 of 6

4 Cl & 6.2 TEST DETAILS Requirement Test Method Clause Reference Chemical composition: a) Ladle Analysis IS:228 or any other established instrumental/ chemical method, and Table 1 of IS 2830 CARBON STEEL CAST BILLET INGOTS, BILLETS, BLOOMS AND SLABS FOR RE-ROLLING INTO STEEL FOR GENERAL STRUCTURAL PURPOSES TABLE 1, LEVELS OF CONTROL (Para 6 of Scheme of Testing and Inspection) LEVELS OF CONTROL No. of Samples Lot Size Frequency i) Two (One sample from the beginning and the other from the end of teeming to be drawn) ii) Three (Samples to be drawn from the beginning, middle and end of teeming) One i) Heat less than 100 tonnes. REMARKS a) In case of continuously cast products (cast billets, ingots, billets, blooms & slabs), two samples may be drawn from the billets, one representing the beginning and the other from the end of teeming. b) In case of failure, the material from that heat shall not be marked. ii) Heats more than 100 tonnes. 6.3 b) Check Analysis IS:228 or any other One established instrumental/ Cast chemical method, and Table 1,Table 2 and Cl 8 of IS 2830) 9. Freedom from defects 9 IS:2830 Adequate inspection to ensure each item to be free from defects Macro examination IS:11371, - One One Each Cast Sulphur print tests IS:12037 Cast Each Cast i) In case of failure, the material from that cast shall not be marked. For cast billet ingots as per 8.1, if mutually agreed between purchaser & the manufacturer 10.2 Bend 10.2 IS: Camber do- Adequate inspection to ensure each item to be as per requirement of the standard - 11 &12 Dimensions Tolerances and 11 & 12 -do- -do- - ANNEXURE-I. Page 4 of 6

5 ANNEXURE-I BIS STANDARD MARK (Para 4.3 of the Scheme of Testing and Inspection) M/s. (Registered Office Address and Works Address) TEST CERTIFICATE FOR CARBON STEEL CAST BILLET INGOTS, BILLETS, BLOOMS AND SLABS FOR RE-ROLLING INTO STEEL FOR GENERAL STRUCTURAL PURPOSES TEST CERTIFICATE No. DATE To M/s It is certified that the material described below conforms to IS 2830:2012. The chemical composition, as tested in accordance with the Scheme of Testing and Inspection contained in the BIS Certification Marks Licence No CM/L-, are as indicated below against each order No. etc. (Please refer to IS 2830:2012 for details of specification requirements) Order No. & Date Size Cast No. Quantity (MT) TEST RESULTS Chemical Analysis (Ladle) C S P Mn Si Cu* Cr Mo V Ni CE Micro Alloying Elements Grade Designation Remarks * For Copper bearing quality The material supplied conforms to the standard rolling tolerances. REMARKS Shipping Advice No. Signature: Wagon Nos./Truck No. Designation: FOR M/s (It is suggested that size A-4 paper (210 x 297 mm) be used for this Test Certificate) Proforma-1 Page 5 of 6

6 Proforma - 1 PROFORMA FOR OBTAINING PRODUCTION DETAILS Period covered Name of Licensee CM/L No. 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: Incase 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 with 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 Page 6 of 6