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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All material is furnished in the heat treated condition and bead rolling is excluded in our process. A product analysis of both the weld metal and base metal after annealing.
The steel materials shall also undergo mechanical tests and shall conform to the required values of tensile strength, yield strength, elongation, and hardness. Class WP-W fittings contain welds made with or without filler metal.
Fittings can be supplied in a wide range of diameters z774 wall thicknesses. Welded elbows can be supplied as smooth flow or mitered construction, tees, lateral and crosses are supplied as nozzle-welded. Active view current version of standard.
Tension, Flattening, Flange test, reverse-bend and hardness tests required each lot.
Special fittings can be supplied to customer design and size when required. Automatic welding process asm the addition of filler wire. A fittings is commonly use in the Pulp and Paper mills, food processing plants, and other industries where corrosion resistance is essential.
ASTM A774/A774M – 14
Specially items can be ordered A pipe with immediately deliver available from a complete inventory standard sizes up to 24″. Wall thickness may nor be mode than. Automatic welding process with or without addition of filler wire. Z774 or fitting fabrications made with filler metal have been radiographed marked with Class symbol WP-W.
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. However, unless the order specifies the applicable “M” specification designation SI unitsthe material shall be furnished to inch-pound units.
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 a747 stainless fittings intended for low to moderate temperatures and corrosion service where heat treatment is not required for corrosion resistance.
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. 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. Fittings differing from these standard may be furnished in accordance with Supplementary Requirement S9. Fittings are normally furnished in MSS SP dimensions, with square cut ends, fittings with beveled ends can be provided.
Wall thickness may not be more than As-Welded fittings are usually used where corrosion resistance is essential. ASTM A This specification covers seamless and welded austenitic stainless steel tubing intended for the low or high temperature and general corrosion service.
When desired, one or more of these may astn specified in the order. How to Find Us. Users should note that certain corrosive conditions may restrict the use of one or more grades.
Douglas Barwick – Specifications
The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other.
Although no restrictions are made on sizes commercial practice is usually above NPS8. Class WP fittings are subdivided into four subclasses: 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.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Hydrostatic of each tube. Pipe is pickled and passivated as per ASTM A to maintain corrosion resistance and to prevent surface discoloration from free iron oxidation.