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. This process of welding allows the company to supply a large range of thickness and diameters.
Fittings are pickled and a74 as per ASTM A to maintain corrosion resistance and to prevent surface discoloration from free iron oxidation. Specially items can be ordered A pipe with immediately deliver available from a complete inventory standard sizes up to 24″.
The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Hydrostatic of each tube. With no nondestructive testing required. The fittings shall be made from flat-rolled steel which shall be in the solution annealed condition. Automatic welding process with no addition of filler wire. Combining values from the two systems may result in non-conformance with the standard. 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.
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.
Pipe is pickled and passivated as per ASTM A to maintain corrosion resistance and to a747 surface discoloration from free iron oxidation. Although no restrictions are made w774 sizes qstm practice is usually above NPS8.
Douglas Barwick – Specifications
No nondestructive testing is performed and the fittings are unannealed. ASTM A This specification covers welded unannealed stainless pipe intended for low q774 moderate temperatures and corrosion service where heat treatment is not required for corrosion resistance. Base metal analysis are traceable to the original mill certificates.
Active view current version of standard. Hydrostatic or non-destructive electric test of each tube. This specification covers two general classes, WP and CR, a7744 wrought austenitic stainless steel fittings of seamless and welded construction covered by the latest revision of ANSI B All material is furnished in the heat treated condition and bead rolling is excluded in our process.
As-welded pipe is asym used when no mechanical testing of the finished product is required. Special fittings can be supplied to customer design and size when required. Tension, Flattening, Flange test, reverse-bend and hardness tests required each lot. The term “fittings” applies to butt aetm socket welding parts such as 45 and 90 elbows, tees, reducers, wyes, laterals, crosses, and stub ends. Fittings are normally furnished in MSS SP dimensions, with square cut ends, fittings with beveled ends can be provided.
The steel materials shall also undergo mechanical tests and shall conform to the required values of tensile strength, yield strength, elongation, and hardness.
Fittings differing from these standard may be furnished in accordance with Supplementary Requirement S9. Wall thickness may not be more than. Historical Version s – view previous versions of standard.
Automatic welding process with or without addition of filler wire. Link to Active This link will always route to the current Active version of the standard. Class WP fittings are subdivided into four subclasses: 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.
Pipe or fitting fabrications made with filler metal have been radiographed marked with Class symbol WP-W. Combining values from the two systems may result in nonconformance with the specification. 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 a774 filler metal.
Class WP-W fittings contain welds made with or without filler metal.
ASTM A774 Grade TP316L
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.
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.
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.