ASTM A774 PDF

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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This abstract is a brief summary of the referenced standard. How to Find Us. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Wall thickness may not be more than.

Douglas Barwick – Specifications

Class WP-W fittings contain welds made with or without filler metal. Active view current version of standard. Normally furnished in square cut ends, fittings with beveled ends can be provided. Specially items can be ordered A pipe with immediately deliver available from a complete inventory standard sizes up to 24″. Combining values from the two systems may result in nonconformance with the specification.

All material is furnished in the heat treated condition and bead rolling is excluded in our process. 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 The principal manufacturing procedures specified under A are: 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.

The term “fittings” applies to butt and socket welding parts such as 45 and 90 elbows, tees, reducers, wyes, laterals, crosses, and stub ends. Normally furnished in square cut ends, pipe with beveled ends can be provided.

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Although no restrictions are made on sizes commercial practice is usually above NPS8. Automatic welding process with or without addition of filler wire.

Special fittings can be supplied to customer design and size when required. Tension, Flattening, Flange test, reverse-bend and hardness tests required each lot.

Hydrostatic of each tube. With no nondestructive testing required. Table 1 and Table 2 list the common diameters and nominal thicknesses of fittings in this specification. A pipe and tubing is commonly used in the Pulp and Paper mills, food processing plants, and other industries where corrosion resistance is essential. The fittings shall be made from flat-rolled steel which shall be in the solution annealed condition. Combining values from the two systems may result in z774 with the standard.

Wall thickness may nor be mode than. Wall thickness may not be more than Pipe is 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.

Link to Active This link will always route to the current Active version of the standard. Class WP-S fittings are those manufactured from seamless product by aetm seamless method of manufacture marked with class symbol WP-S.

A fittings is commonly use in the Pulp and Paper mills, food processing plants, and other industries where corrosion resistance is essential. The values stated xstm each system may not be exact equivalents; asmt, each system shall be used independently of the other. Class WP fittings are subdivided into four subclasses: Historical Version s – view previous versions of standard.

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When desired, one or more of these may be specified in the order. These supplementary requirements call for additional tests.

ASTM A774 Grade TP316L

Fittings are asgm furnished in MSS SP dimensions, with square cut ends, fittings with beveled ends can be provided. Class WP-S fittings are those manufactured from seamless product by a seamless method of manufacture marked with class symbol WP-S ; Class WP-W fittings contain welds made with or without filler metal.

Heat analysis and product analysis shall be performed where in the steel fittings shall conform to the required chemical compositions of carbon, manganese, phosphorus, sulfur, silicon, chromium, nickel, molybdenum, titanium, columbium, tantalum, and nitrogen. Welded elbows can be supplied as smooth flow or mitered construction, tees, lateral and crosses are supplied as nozzle-welded.

As-welded pipe is commonly used when no mechanical testing of the finished product is required. Hydrostatic or non-destructive electric test of each tube.

Reducers are supplied as conical. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. The fittings shall be formed by a hot or cold process and shall be welded by a shielded welding process with or without the addition of filler metal. Fittings differing from these standard may be furnished in accordance with Supplementary Requirement S9.

A is considered to be the most applicable specification for “as welded” fittings. Within the text, the SI units are shown in brackets.