ASME SA53:2013 pdf free download

ASME SA53:2013 pdf free download.SPECIFICATION FOR PIPE, STEEL, BLACK AND HOT-DIPPED, ZINC-COATED, WELDED AND SEAMLESS.
1.1 This specification covers seamless and welded black and hot-dipped galvanized steel pipe in NPS to NPS 26 IDN 6 to DN 6501 (Note 1), inclusive, with nominal wall thickness (Note 2) as given in Table X2.2 and Table X2.3. It shall he permissible to furnish pipe having other dimensions (Note 2) provided such pipe complies with all other requirements of this specification.
NOTE I — The dimensionless designators NI’S (nominal pipe size) [DN (diameter nominal)] have been substituted in this specification for such traditional terms as “nominal diameter,” size.” and “nominal size.”
NOTE 2 — The term nominal wall thickness has been assigned for the purpose of convenient designation, existing in name only, and is used to distinguish it from the actual wall thickness, which may vary over or under the nominal wall thickness.
1.2 This specification covers the following types and grades:
1.2.1 Type F — Furnace-butt welded, continuous welded Grade A,
1.2.2 Type E — Electric-resistance welded, Grades A and B, and
1.2.3 Type S — Seamless, Grades A and B.
NOTE 3 — See Appendix Xl for definitions of types of pipe.
1.3 Pipe ordered under this specification is intended for mechanical and pressure applications and is also acceptable for ordinary uses in steam, water, gas. and air lines. It is suitable for welding, and suitable for forming operations involving coiling, bending. and flanging, subject to the following qualifications:
1.3.1 Type F is not intended for flanging.
1.3.2 When Types S and E arc required for close coiling or cold bending, Grade A is the preferred grade. This provision is not intended to prohibit the cold bending of Grade B pipe.
Notch depth shall not exceed 12.5% of the specified wall thickness, or 0.012 in. [0.3 mm], whichever is greater. Notch length shall not exceed 1 in. [25 mini, and the width shall not exceed the depth. Outside diameter and inside diameter notches shall he located sufficiently apart to allow separation and identification of the signals.
11.2.6 Pipe containing one or more imperfections that produce a signal equal to or greater than the signal produced by the calibration standard shall be rejected or the area producing the signal shall be rejected.
11.2.6.1 Test signals produced by imperfections that cannot be identified, or produced by cracks or crack- like imperfections. shall result in rejection of the pipe, unless it is repaired and retested. To he accepted. the pipe must pass the same specification test to which it was originally subjected, provided that the remaining wall thickness is not decreased below that permitted by the specification. It shall be permissible to reduce the outside diameter at the point of grinding by the amount so removed.
11.2.6.2 It shall be permissible to evaluate test signals produced by visual imperfections in accordance with provisions of Section 14. A few examples of these imperfections would be straightener marks, cutting chips, scratches, steel die stamps, stop marks, or pipe reducer ripple.
11.2.7 The test methods described in this section are not necessarily capable of inspecting the end portion of pipes. This condition is referred to as end effect. The length of the end effect shall he determined by the manufacturer and, when specified in the purchase order, reported to the purchaser.
12. Permissible Variations in Weight and Dimensions
12.1 Weight — The weight of the pipe as specified in Table X2.2 and Table X2.3 or as calculated from the relevant equation in ASME B36.1OM shall not vary by more than ±10%.
NOTE 7 — The weight tolerance is determined from the weights of the customary lifts of pipe as produced for shipment by the mill, divided by the number of feet of pipe in the lift. On pipe sizes over NPS 4 LDN l(X)J. rhere individual lengths are weighed, the weight tolerance is applicable o the individual length.
12.2 Diameter — For pipe NPS I [DN 40] and under, the outside diameter at any point shall not vary more than ± in. jO.4 mm] from the standard specified. For pipe NPS 2 IDN 50] and over, the outside diameter shall not vary more than ±1% from the standard specified.
12.3 Thickness — The minimum wall thickness at any point shall he not more than 12.5% tinder the nominal wall thickness specified.