Document Xzoe1zQqGZKOe0MXj29LBww2G

TECHNICAL SPECIFICATIONS CERTAINTEED CORPORATION PIPE DIVISION SPECIFICATIONS CLASSIFICATION: Standard Purchasing Specification PREPARED BY TCO REF. NO 11 SPEC. NO.: 532 PAGE NO: 1 APPROVED BY SUPERSEDES: May 26, 1969 DATE OF ISSUE: April 27, 1973 DESCRIPTION: Steel Mandrels 1. General. This specification has been devised to define the steel mandrel requirements for use in the Mazza type manufacture of asbestoscement pipe. 2. Material Type A - Cold drawn, seamless mechanical steel tubing, nominal carbon content 0.2554, unannealed, chamfered ends. Type B - Centrifugally cast 1025 carbon steel tubing, stress relieved. 0.D. (outside diameter) machined to 125 micro finish, I.D. (inside diameter) as cast, ends faced and radiused. Finish per ASA B 46.1. Pulling Ring - Flat bar stock, 1040 or 1045 carbon steel. Pulling Bar - Round bar stock, carbon steel. 1010 min. carbon steel or 1025 3- Straightness Maximum curvature per foot not to exceed +0.010" in sizes uo to 5" and +0.015" in sizes over 5", tubing only. Cast steel mandrels shall have a T.I.R. (Total Indicator Reading) not to exceed 0.050" at center. 4. Marking The pulling ring of each mandrel 7.51" and larger shall identified with the nominal outside mandrel diameter applied follows. be as CTD012693 STANDARD PURCHASING SPEC.: TCO NO.: 11 PAGE NO. : 2 532 4. Marking - (Cont'd. ) Use small stainless steel manual electrode to provide numbers at least 3/4" high, raised approximately 1/8", and completed in a neat, legible manner. Mandrels below 7.50" having smaller pulling rings are to be identified as above, except numbers shall be reduced in size according to the pulling ring "Y" dimension. 5. Shipping Instructions Coating - All surfaces of each mandrel shall lightly coated with a protective material which will prohibit formation of rust during transportation and initial storage yet be capable of being readily removed at the plant site. be the and ESEHaping - Mandrels shall be suitably packaged to prevent damage in transit and to allow for handling at the plant site by fork lift trucks. Delivery - Delivery time shall be arranged by the vendor to avoid unnecessary delays at the plant site. 6. Static Balance Each Type "B" mandrel shall be statically balanced. Mandrels of 12.00" .D. and less shall be balanced to within 0.25 pounds. Above 12.00" 0.D., the mandrels shall balance within 0.50 pounds. If the total weight is greater than one pound, it shall be divided equally between each end. Weight distribution tolerance is plus or minus 1 pound. Weights shall clear the pull bar ane pull ring by minimum of 6.0 inches. Installation of the weights inside the mandrel shall not distort the outer surface of the mandrel. The recommended method is to tack weld bar stock having a width to thickness ratio of approximately 4 to 1. CTD012694 TECHNICAL SPECIFICATIONS CERTAINTEED CORPORATION PIPE DIVISION SPECIFICATIONS CLASSIFICATION: Standard Purchasing Specification PREPARED BY: TCO REF. NO.: 10 SPEC. NO.: 532 PAGE NO: 3 APPROVED BY: SUPERSEDES: December 26, I960 DATE OF ISSUE: May 26, 1969 DESCRIPTION Steel Mandrels Dimensions Mandrel 0. D. Nall Thickness Nall To1erance 0. D. Tolerance _D_ _ Y_ Up to 4. 49" A 0.250" + 10* +0.015" -0.000" 5/8" 5/8 4. 50" to 4.99" A 0.250" + 10* +0.015" -0.000" 5/8" 3/4 5. 00" to 7.50" A 0.313" + 10* +0.015" 5/8" 3/4 7. 51" to 7.99" A 0.313" + 10* +0.015" 1" 1" 0. 00" to 0.99" 9. 00" to 14.50" A B 0.313" + 10* +0.023 0.500" +0. 120", "0.000" +0.010" 1" 1" 1" 1" 14. 51 " to 16.99" 17. 00 " to 23.99" 24. 00 " to 29.99" B B B 0.563" +0. 120", -0.000" +0.010" 1" 1" 0.625" +0. 120", -0.000" +0.010" 1-1/2" 1 " 0.000" Min. * + 0. 160", -0.000" +0.010" 1-1/2" 1" *1/4 inch may be removed from each side of I.D. pull rings and pull bars. for fabr ication o For Mandrel Size to be ordered, refer to General Standards Manual, Section G, Part B. Unless otherwise directed, the preferred mandrel is to be ordered. CTD012695 TECHNICAL SPECIFICATIONS CERTAINTEED CORPORATION PIPE DIVISION SPECIFICATIONS CLASSIFICATION: Standard Purchasing Specification PREPARED BY TCO REF. NO 10 SPEC. NO.: 532 PAGE NO: 4 APPROVED BY SUPERSEDES December 6, I960 DATE OF ISSUE: May 6, 1969 DESCRIPTION Steel Mandrels Pull Ring Pull Bar 1/4" Fillet Cont. Weld Wall 1/8" R. 1/4" R. Type-A Both Ends Type-B Both Ends Break Edge and Corner Marking Example Pull Ring STEEL MANDREL Pull Bar *0r rnay be square shouldered. CTD012696 TECHNICAL SPECIFICATIONS CERTAINTEED CORPORATION PIPE DIVISION SPECIFICATIONS CLASSIFICATION: Standard Purchasing Specification PREPARED BY TCO REF. NO. 10 SPEC. NO. 532 PAGE NO: 5 APPROVED BY: SUPERSEDES: November 4, 1968 DATE OF ISSUE: May 26, 1969 DESCRIPTION: Steel Mandrels NOT TO BE DISTRIBUTED TO VENDORS Di.stributioni As this specification represents a special purchasing situation not connected with the normal use of this type of document, the standard distribution list is expanded to include: Director of Manufacturing and Engineering (2) Each Plant Engineer (1) Additional copies of the specification may be secured from Technical Service as needed. Vendors^ Purchase of mandrels will normally be accomplished through bids extended by Division Purchasing Agent. Receiving Inspection! Plant Engineer is responsible for acceptance or rejection of mandrels purchased through this specification. Mandrel are to be delivered to plant sites complete and ready for use excep for the removal of protective coating. While it is intended that man drels are to be delivered ready for use, circumstances may reouire that installation of pull bar and pull ring, chamfering, and static balance be accomplished at the plant. Seecial Note! Type A mandrels are available in diameters greater than 9.01" but probably with greater 0.D. tolerances. Since Type A mandrels are less costly initially, this alternative should be invest igated each time in the 9.01" to 14.00" 0.D. range. The machining of a radius on the mandrel ends may be prohibitive. Therefore, this requirement may be waived and the following substi tuted: 1/8" + 1/32" x 45 degrees + 5 degrees chamfer both ends. Type 1 tiDdrels! Type B mandrels may be made providing that all the conditions as specified in reference to wall thickness, straightness, and tolerances are strictly adhered to. from used steel pipe in this specification surface finish, 0.D., c l' i/I CTD012697