ASME SA-178 pdf free download
ASME SA-178-SA-178M-2021 pdf free download.SPECIFICATION FOR ELECTRIC-RESISTANCE- WELDED CA RBON STEEL AND CA RBON-MANGA NESE STEEL BOILER AND SUPERHEATER TUBES.
1.1 This specification covers minimum-wall-thickness. clcctric-rcs,stancc-weldcd tubes made of carbon steel and carbon-manganesc stccl intcndcd for usc as boiler tubes. boiler flues, superheater flues, and safe ends.
NOTE I — Type C and L) tubes are not suitabk lot safe-ending kw
lLhft.
1.2 The tubing sizes and thicknesses usually furnished to this specification are to 5 in. 112.7 to 127 mrnl in outside diameter and 0.035 to 0.320 in. 10.9 to 9.1 mml, inclusive, in minimum wall thickness. Tubing having other dimensions may he furnished, provided such tubes comply with all other requirements of ibis specification.
1.3 Mechanical property requirements do not apply to tubing smaller than ‘.. in. [3.2 mmj in inside dianter or 0.015 in. 10.4 mmj in thickness.
1.4 When these products are to be used in applications conforming to ISO Recommendations for Boiler Construction, the requirements of Specification A 520 shall supple. ment and supersede the requirements of this specification.
1.5 The values stated in either inch-pound units or SI units are o be regarded separately a’. standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents: therefore, each system must be used independently of the other. Combining values from the two systems may result in noncontormance with the specification. The inch-pound units shall apply unless the “M” designation of this specification is specified in the order.
2. Referenced Documents
2.1 ASTM Standards:
A 226/A 226M Specification for Electric-Resistance- Welded Carbon Steel Boiler and Superheater Tubes for High-Pressure Service
A 450/A 450M Specification for General Requirements for Carbon. Fcrritic Alloy, and Austenitic Alloy Steel Tubes
A 520 Specification for Supplementary Requirements for Seamless and Electric-Resistance-Welded Carbon Steel Tubular Products for High-Temperature Service Conforming to ISO Recommendations for Boiler Construction.
E 213 Practice for Ultrasonic Examination ol Metal Pipe and Tubing
E 273 Practice for Ultrasonic Examination of Longitudinal Welded Pipe and Tubing
3. Ordering Information
3.1 Orders for material under this specification should include the following, as required. to describe the desired material adequately:
3.1.1 Quantity (feet. metres. or number of lengths),
3.1.2 Name of material (electric- resistance-welded tubes).
3.1.3 Grade (A, C. or D, Table I),
3.L4 Size (outside diameter and minimum wall thickness).
3.LS Length (specific or random).
3.1.6 Optional requirements (product analysis. Section 7; crush test, Section 10: hydrostatic or nondestructive electric test. II 6),
3.1.7 Test report required (Certification Section of Specification A 450/A 450M,
3.18 Specification. and designation.ASME SA-178 pdf download.
