The present invention deals with the base metal chemistry of electric resistance welded cross member tube. More particularly this invention deals with the level of microalloy elements and level of carbon in the base metal of tube that will make the tube weldable and will ensure consistency of mechanical properties along the length of the tube. This newly developed electric resistance welded grade tube will have properties better than cold drawn electric resistance welded grade specified in IS Pipes are widely used for structural parts in automobiles, structural parts includes parts like chassis cross members.
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SHRI R. As a result of the experience gained since its publication it has been decided to revise this standard incorporating a few changes.
Provision relating to surface protection of pipes during transit, permissible fin height and marking have been added. This has been met by deriving assistance from the following publications: B. DIN : Sheet 1 -Seamless steel precision tubes cold-drawn or cold-rolled special grade accuracy sizes.
Deutscher Normenausschuss. DIN : 19i7 Sheet 2 - Seamless steel precision tubes cold drawn or cold rolled special grade accuracytechnical conditions of delivery.
DIN Welded precision steel tubes cold drawn to close tolerances. American Society for Testing and Materials. The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard. SCOPE 1. In case, any other process is employed in the manufacture, prior approval of the purchaser shall be obtained. SGeneral requirements for the supply of metallurgical materials.
The tensile strength, yield stress and the percentage elongation shall be determined in accordance with IS : and shall be not less than that specified. The tubes shall be capable, without showing crack or flaw, of being flattened until the interior surfaces, at the middle, are brought to such a position that the distance apart is not more than that specified.
In the cast of welded tubes the weld shall be placed at the point of maximum curvature. The burrs may be removed before testing. The length of the test piece shall be about one-and-a-half times the outside diameter of the tube and the ends shall be cut square to the axis of the tube. IS : - capable, without cracking, of being drifted to an included angle of 30 until the outside diameter is increased by not less than the amount specified. For the purpose of this test, tubes shall not be belled by spinning methods.
In case the test pieces from both of these additional samples pass, the materials,shall be deemed to comply with the requirements of that particular test. Should the test pieces from either of these additional samples fail, the material represented by the test samples shall be liable to rejection.
The product may also be marked with Standard Mark. The details of conditions under which the licence for the use of Standard Mar. The internal fin may be removed where practicable and this shall be the subject of agreement between the purchaser and the manufacturer.
All tubes shall bi of workmanlike finish, free from injurious defects commercially straight and without visual evidence of incomplete welding. The tubes may be supplied in heat-treated condition, provided that all the requirements of this standard are complied with. TEST by the purchaser, each tube shall be subjected to an with the following pressure test in accordance.
Manak Bhavan. However, where the method is not given in IS:? Page 5, clause 6. Learn more about Scribd Membership Home. Much more than documents. Discover everything Scribd has to offer, including books and audiobooks from major publishers. Start Free Trial Cancel anytime. Uploaded by Kaushik Sengupta. Document Information click to expand document information Description: International Standard.
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Related titles. Carousel Previous Carousel Next. Jump to Page. Search inside document. British Standards DIN : Sheet 1 -Seamless steel precision tubes cold-drawn or cold-rolled special grade accuracy sizes. IS : 0. SGeneral requirements for the supply of metallurgical materials first revision. IS : 3. IS : - TESTS Documents Similar To Gary J. Davis, P. Antonio Montana. Alexander Decker. Pemburu Jablay. Gohilakrishnan Thiagarajan. Christopher Carrillo. Kiran Acharya. Charles Onyechere. Julio Cesar.
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IS 3074 Tubes
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IS ERW-1 IS 3074
IS 3074: Steel Tubes for Automotive Purposes