ASME B31 pdf free download

ASME B31.9-2014 pdf free download.Building Services Piping ASME Code for Pressure Piping, B31.
900.2 Terms and Definitions
adhesive bond: a union of materials by means of an adhesive.
anchor: a structural attachment device or mechanism that prevents the movement of pipe due to thermal expansion, expansion joint thrust, and other loads.
arc welding: a group of welding processes that produce coalescence of metaLs by heating them with an arc, with or without the use of filler metal.
acn,hlii; the joining together of two or more piping components.
automatic u’eldinç: welding with equipment that performs the welding operation without constant observalion and adjustment of controls by a welding operator. The equipment may or may not perform the loading and unloading of the work.
backing: material placed at the root of a weld joint to support molten weld metal.
backinç ring: backing in the form of a ring.
ball or swirel joint: a joint that permits pipe motion by means of rotation.
base metal (material): the metal (material) to be welded, brazed, soldered, or cut.
boiler external piping (BEP): see para. 900.1.2(b).
branch coniwction: the attachment of the end of a branch pipe to the run of a main pipe, with or without the use of a fitting. Figure 927.4.6-1 shows typical branch connections that do not use fittings.
bra.e u’dding: a joining process that produces coalescence of metaLs by using a filler metal whose liquidus is above 800°F (427°C) and below the solidus of the base metals. Unlike brazing, the filler metal is not distributed in the joint by capillary attraction.
bra:ing: a joining process that produces coalescence of metals by heating to a suitable temperature and by using a filler metal whose liquidus is above 80(rF (427°C) and below the solidus of the base metals. The filler metal is distributed by capillary attraction between closely fitted 1oint surfaces.
brine: a liquid used for the transmission of heat without change of state in cooling systems, which is nonflammable or has a flash point above I 50°F (66°C) as determined by the method of ASTM D93.
brittle failure: a pipe failure mode that exhibits no mate- nat deformation visible to the naked eye, e.g.. stretching, elongation, or necking down, in the area of the break.
butt joint: a joint between two members aligned approximately in the same plane.
chilled watcr: water or an antifreeze solution used as a brine at a supply temperature below 60°F (16°C).
coalescence: the growing together or growth into one body of materials being welded, brazed, or soldered.
con,butible liquid: a liquid having a flash point at or above 100°F (38°C).
consumable insert: backing in the form of filler metal that is melted into the root of the weld and fused with the base metals.
contractor: the entity responsible for fabrication and installation of piping and associated equipment.
crack: a fracture-type imperfection characterized by a sharp tip and high ratio of length and depth to opening displacement.
DN: metric designated pipe size. The number is the millimeter approximation of the inch pipe size using I in. equal to 25 mm. The pipe is still manufactured in inch sizes.
defect: an imperfection that by nature or accumulated effect renders a part of the piping unable to meet minimum applicable acceptance standards or specifications. A defect is cause for rejection.
desi1ed metal: filler metal that has been added during a welding operation.ASME B31 pdf download.