2020年4月26日 · ASTM A860 fittings fall under the dimensional requirements of MSS SP-75 (or ASME B16.9). The ASTM covers things like the chemical, mechanical, and manufacturing …

2013年1月1日 · MSS pipeline flange temperatures match the B31.4 and 8 pipeline code's no-derated pressure limit (the same 250[°]F), so it is beneficial to use the MMS spec. for all …

2021年12月13日 · MSS SP-75 Specification for high-test, wrought, butt-welding fittings 1 SCOPE 1.2 This Standard Practice governs dimensions, tolerances, ratings, testing, materials, …

2008年5月13日 · There is no 'MSS SP-75 approval'. Since ASTM A860 is more restrictive than MSS SP-75 in such things as chemical composition, Charpy requirements, and so on, it could …

2015年5月22日 · 14.4.4 of MSS SP-75 2014 wants sub arc welds with one pass from inside unless it's inaccessible "then, a manual or machine root bead may be employed..." Does that …

2022年1月19日 · It can, but it needs to be noted that A860 has more stringent requirements for chemical composition and Charpy toughness, for example. Thus, if the stipulated specification …

On MSS SP-75 Section 13.5 it talks about Segmentable Elbows. My question is if it is a Spec requirement for ALL High Yield Elbows (LR, 3R, 90 degrees, 45 degrees and 180 grees) to be …

2016年1月4日 · I am seeking any help regarding the rationale behind the limitation on actual yield strength to 20000 psi as specified by supplementary requirement SR 5 of MSS-SP-75, spec. …

2012年7月4日 · Steel buttwelding fittings shall comply with either ASME B16.9 or MSS SP-75 and shall have pressure and temperature ratings based on stresses for pipe of the same or …

2015年3月9日 · The MSS SP-75 Grade you want is designated using "WPHY" prefix and the grade, 52 As ASTM A694 is referenced within MSS SP-75, as are others, and all other things …