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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Wall thickness may not be more than Ashm to Find Us. A fittings is commonly use in the Pulp and Paper mills, food processing plants, and other industries where corrosion resistance is essential. Within the text, the SI units are shown in brackets. ASTM A This specification covers seamless and welded austenitic stainless steel tubing intended for the low or high temperature and general corrosion service.

a74 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 made from flat-rolled steel which shall be in the solution annealed condition. Automatic welding process with the addition of filler wire. With no nondestructive testing required. Automatic welding process with no addition of filler wire.

However, unless the order specifies the applicable “M” specification designation SI unitsthe material shall be furnished to inch-pound units. When desired, one or more of these may be specified in the order.

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A is considered to be the most applicable specification for “as ast, pipe and differs from it only that a transverse guided bend test and a transverse tension test are required per lot. Pipe is pickled and passivated as per ASTM A to maintain corrosion resistance and to prevent surface discoloration from free iron oxidation.

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This process of welding allows the company to supply a large range of thickness and diameters. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

Reducers are supplied as conical. Within the text, the Z774 units are shown in brackets. Specially items can be ordered A pipe with immediately deliver available from a complete inventory standard sizes up to 24″. Historical Version s – view previous versions of standard. No nondestructive testing is performed and the fittings are unannealed. Welded elbows can be supplied as smooth flow or mitered construction, tees, lateral and crosses are supplied as nozzle-welded.

Carbide solution heat treatment is required which include rapid cooling to prevent re-precipitation of carbides. A pipe and tubing is commonly used in aa774 Pulp and Paper mills, food processing plants, and other industries where corrosion resistance is essential. Fittings can be supplied in a wide range of diameters and wall thicknesses.

When desired, one or more of these may be specified in the order. Class WP-W fittings contain welds made with or without filler metal.

Hydrostatic of each tube. This specification covers five grades of as-welded, wrought austenitic stainless steel fittings for low-pressure satm and for low and moderate temperatures and general corrosive service. 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.

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Tension, Flattening, Flange test, reverse-bend and hardness tests required each lot.

ASTM A774/A774M – 14

The term “fittings” applies to butt and socket welding parts such as 45 and 90 elbows, tees, reducers, wyes, laterals, crosses, and stub ends.

Link to Active This link will always route to the current Active version of the standard. 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 Fittings are normally furnished in MSS SP dimensions, with square cut ends, fittings with beveled ends can be provided.

ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. A is considered to be the most applicable specification for “as welded” fittings.

ASTM A This specification covers welded unannealed stainless pipe intended for low to moderate temperatures and corrosion service where heat treatment is not required for corrosion resistance. 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.

This abstract is a brief summary of the referenced standard. These supplementary requirements call for additional tests.

Wall thickness may nor be mode than.