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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Hydrostatic or non-destructive electric test of each tube.
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. Wall thickness may not be more than 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.
When desired, one or more of these may be specified in the order. Fittings can be supplied in a wide range of diameters and wall thicknesses.
This process of welding allows the company to supply astj 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. The a74 stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.
Active view current version of standard. Users should note that certain corrosive conditions may restrict the use of one or more grades. No nondestructive testing is performed and the fittings are unannealed. A fittings is commonly use in the Pulp and Paper mills, food processing plants, and other industries where corrosion resistance is essential.
Class WP-S fittings are those manufactured from seamless product by a seamless method of manufacture marked with class symbol WP-S. A is considered to be the most applicable specification for “as welded” pipe and differs from it only that a transverse guided a7774 test and a transverse tension test are required per lot.
Table 1 and Table 2 list the common diameters and nominal thicknesses of fittings in this specification. 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 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.
Within the text, the SI units are shown in brackets. Fittings are normally furnished in MSS SP dimensions, with square cut ends, fittings with beveled ends can be provided. Pipe or fitting fabrications made with filler metal have been radiographed marked with Class symbol WP-W.
ASTM A774 Grade TP316L
The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Class WP-W fittings q774 welds made with or without filler metal. Automatic welding process with the addition of filler wire. As-welded pipe is commonly used when aetm mechanical testing of the finished product is required.
The term “fittings” applies to butt and socket welding parts such as 45 and 90 elbows, tees, reducers, wyes, laterals, crosses, and stub ends.
Tension, Flattening, Flange test, reverse-bend and hardness tests required each lot. Link 7a74 Active This link will always route to the current Active version of the standard.
Tension, Reverse, forward-bend and hardness tests of each lot. A aa774 and tubing is commonly used in the Pulp and Paper mills, food processing plants, and other industries where corrosion resistance is essential.
Users should note that certain corrosive conditions may restrict the use of one or more grades. A product analysis of both the weld metal and base metal after annealing. Specially items can be ordered A pipe with immediately deliver available from a complete inventory standard sizes up to 24″.
Base metal analysis are traceable to the aetm mill certificates. These supplementary requirements call for additional tests. Combining values from the two systems may result in non-conformance with the standard. These supplementary requirements call for additional tests.
Douglas Barwick – Specifications
Hydrostatic of each tube. Although no restrictions are made on sizes commercial practice is usually above NPS8. Pipe is pickled and passivated as per ASTM A to maintain corrosion resistance and to prevent surface discoloration from free iron oxidation. Carbide solution heat treatment is required which include rapid cooling to prevent re-precipitation of carbides. When desired, one or more of these may be specified in the order.
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. ASTM A This specification covers seamless and welded austenitic stainless steel tubing intended for the low or high temperature and general corrosion service.
Fittings are pickled and passivated as per ASTM A to maintain corrosion resistance and to prevent surface discoloration from free iron oxidation. 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 formed by wstm hot or cold process and shall be welded by a shielded welding process with or without the addition of filler metal.
The principal manufacturing aa774 specified under A are: How to Find Us.
Combining values from the two systems may result in nonconformance with the specification.