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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ASTM A774 Grade TP316L

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. These supplementary requirements call for additional tests.

Specially items can be ordered A pipe with immediately deliver available from a complete inventory standard sizes up to 24″. The A manufacturing process is suited to high-volume production and is generally limited to the diameters and schedule wall thickness shown in ANSI B These supplementary requirements call for additional tests. As-welded pipe is commonly used when no mechanical testing of the finished product is required.

Welded elbows can be supplied as smooth flow or mitered construction, tees, lateral and crosses are supplied as a74. Normally furnished in square cut ends, pipe with beveled ends can be provided. Hydrostatic of each tube.

Table 1 and Table 2 list the common diameters and nominal thicknesses of fittings in this specification. Tension, Flattening, Flange test, reverse-bend and hardness tests required each lot. The principal manufacturing procedures specified under A are: Base metal analysis are traceable to the original mill certificates.

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Class WP-S fittings are those manufactured from seamless product by a seamless method of manufacture marked with class symbol WP-S. Although no restrictions are made on sizes commercial practice is usually above NPS8. As-Welded fittings are usually used where corrosion resistance is essential. Active view current version of standard.

ASTM A Fittings This specification covers welded unannealed stainless fittings intended for low to moderate temperatures and corrosion service where heat treatment is not required for corrosion resistance. Hydrostatic or non-destructive electric test of each tube. a7774

Special fittings can be supplied to customer design and size when required. 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 aastm can be provided. With no nondestructive testing required. Automatic welding process with or without addition of filler wire. Users should note that certain corrosive conditions may restrict the use of one or more grades.

Within the text, the SI units are shown in brackets. Wall thickness may not be more than. 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.

Carbide solution heat treatment is required which include rapid cooling to prevent re-precipitation of carbides. Wall thickness may nor be mode than. This specification covers five grades of as-welded, wrought austenitic stainless steel adtm for low-pressure piping and for low and moderate temperatures z774 general corrosive service. 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.

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The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Automatic welding process with the addition of filler wire. Wall thickness may not be more than How to Find Us. 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. Pipe or fitting fabrications made with filler metal have been radiographed marked with Class symbol Sstm.

Within the text, the SI units are shown in brackets.

Douglas Barwick – Specifications

A fittings is commonly use in the Pulp and Paper mills, food processing plants, and other industries where corrosion resistance is essential. Class WP fittings are subdivided into four subclasses: 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.

When desired, one or more of these may be specified in the order. Fittings differing from these standard may be furnished in accordance with Supplementary Requirement S9. Combining values from the two systems may result in nonconformance with the specification. Class WP-W fittings contain welds made with or without filler metal. Combining values from the two systems may result in non-conformance with the standard.