Purchase your copy of ASTM A/AM – 14 as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards. ASTM A – This specification covers “as-welded” stainless steel pipe fittings for low pressure piping intended for low to moderate temperatures and general. ASTM A/AM: STANDARD SPECIFICATION FOR AS-WELDED WROUGHT AUSTENITIC STAINLESS STEEL FITTINGS FOR GENERAL CORROSIVE.
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Automatic welding process with or without addition of filler wire. Pipe or fitting fabrications made with filler metal have been radiographed marked with Class symbol WP-W. This abstract is a brief summary of the referenced standard. Within the text, the SI units are shown in brackets.
The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. The fittings shall be made from flat-rolled steel which shall be in the solution annealed condition.
This process of welding allows the company to supply a large range of thickness and diameters. Table 1 and Table 2 list the common diameters and nominal thicknesses of fittings in this specification. Fittings differing from these standard may be furnished in accordance with Supplementary Requirement S9.
Link to Active This link will always route to the current Active version of the standard.
ASTM A774/A774M – 14
Ast, elbows can sstm supplied as smooth flow or mitered construction, tees, lateral and crosses are supplied as nozzle-welded. The steel materials shall also undergo mechanical tests and shall conform to the required values of tensile strength, yield strength, elongation, and hardness. No nondestructive testing is performed and the fittings are unannealed. A is considered to be the most applicable specification for “as welded” pipe and differs from it only that a transverse guided bend test and a transverse tension test are required per lot.
These supplementary requirements call for additional tests. With no nondestructive testing required. Normally furnished in square cut ends, pipe with beveled ends can be provided.
ASTM A774 Grade TP316L
It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. A product analysis of both the weld z774 and base metal after annealing. Wall thickness may nor be mode than. Special fittings can be supplied to customer design and size when required.
A pipe and tubing is commonly used in the Pulp and Paper mills, food processing plants, and other industries where corrosion resistance is essential. Automatic welding process with the addition of filler wire. Fittings are pickled and passivated as per ASTM A to maintain corrosion resistance and to prevent surface discoloration from free iron oxidation.
However, unless the order specifies the applicable “M” specification designation SI unitsthe material shall be furnished to inch-pound units. ASTM A This specification covers welded unannealed stainless pipe intended for low to moderate temperatures and corrosion service where heat treatment aetm not required for corrosion resistance.
Historical Version s – view previous versions of standard. Referenced Documents purchase separately The documents listed below are referenced within a74 subject standard but are not provided as part of the standard.
Wall thickness may not be more than Active view current version of standard. Hydrostatic or non-destructive electric test of each sstm. As-Welded fittings are usually used where corrosion resistance is essential. Tension, Reverse, forward-bend and hardness tests of each awtm. This specification covers five grades of as-welded, wrought austenitic stainless steel fittings for low-pressure piping and for low and moderate temperatures and general corrosive service.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. All material is furnished in the heat treated condition and bead rolling is excluded in our process. ASTM A Fittings This specification covers welded unannealed x774 fittings intended for low to moderate temperatures and corrosion service where heat treatment is not required for corrosion resistance.
Wall thickness may a7774 be more than. Specially items can be ordered A pipe with immediately deliver available from a complete inventory standard sizes up to 24″. The term “fittings” applies to butt and socket welding parts such as 45 and 90 elbows, tees, reducers, wyes, laterals, crosses, and stub ends. Fittings can be supplied in a wide range of a7744 and wall thicknesses. Users should note that certain corrosive conditions may restrict the use of one or more grades.
Although no restrictions are made on sizes commercial practice is usually above NPS8. How to Find Us.
Douglas Barwick – Specifications
When desired, one or a74 of these may be specified in the order. Carbide solution heat treatment is required which include rapid cooling to prevent re-precipitation of carbides. This specification covers two general classes, WP and CR, of wrought austenitic stainless steel fittings of seamless and welded construction covered by the latest revision of ANSI B Hydrostatic of each tube.
A is considered to be the most applicable specification for “as welded” fittings. Automatic welding process with no addition of filler wire. ASTM A This specification covers seamless and welded austenitic stainless steel tubing intended for the low or high temperature and general corrosion service. These supplementary requirements call for additional tests. Users should note that certain corrosive conditions may restrict the use of one or more grades.
Fittings are normally furnished in MSS SP dimensions, with square cut ends, fittings with beveled ends can be provided. The principal manufacturing procedures specified under A are: