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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Combining values from the two systems may result in nonconformance with the specification. Automatic welding process with or without addition of filler wire. Hydrostatic or non-destructive electric test of each tube.
ASTM A774/A774M – 14
However, unless the order specifies the applicable “M” specification designation SI unitsthe material shall be furnished to inch-pound units. Within the text, the Atsm units are shown in brackets. Tension, Flattening, Flange test, reverse-bend and hardness tests required each lot.
Class WP-S fittings are those manufactured from seamless product by a seamless method of manufacture marked with class symbol WP-S.
Douglas Barwick – Specifications
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 a77 are required per lot. ASTM A This specification covers welded unannealed stainless pipe intended for low to moderate temperatures and corrosion service where heat treatment is not sstm for corrosion resistance.
The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Tension, Reverse, forward-bend and hardness tests of each lot. 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.
Wall thickness may nor be mode than.
Pipe is pickled and passivated as per ASTM A to maintain corrosion resistance and to prevent surface discoloration from free iron oxidation. 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.
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 This abstract is a brief summary of the referenced standard. Reducers are supplied as conical. Base metal analysis are traceable to the original mill certificates. The steel materials shall also undergo mechanical tests and shall conform to the required values axtm tensile strength, yield strength, elongation, and hardness.
Class WP fittings are subdivided into four subclasses: Although no restrictions are made on sizes commercial practice is usually above NPS8. 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. Wall thickness may not be more than ASTM A This specification covers seamless axtm welded austenitic stainless steel tubing intended for the low or high temperature and general corrosion service. No nondestructive testing is performed and the fittings are unannealed.
ASTM A774 Grade TP316L
The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.
These supplementary requirements call for additional tests. The principal manufacturing procedures specified under A are: Hydrostatic of each aatm. A is considered to be the most applicable specification for “as welded” fittings.
How to Find Us. 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. Active view current version of standard. Special fittings can be supplied to customer design and size when required. Link to Active This link will always route to the current Active version of the standard.
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 non-conformance with the standard.
Fittings differing from these standard may be furnished in accordance with Supplementary Requirement S9.