ASTM A774 PDF

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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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Douglas Barwick – Specifications

Base metal analysis are traceable to the original mill certificates. Special fittings can be supplied to customer design and size when required. Hydrostatic of each tube. Carbide solution a774 treatment is required which include rapid cooling to prevent re-precipitation of carbides.

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. Hydrostatic or non-destructive electric test of each tube. 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.

The principal manufacturing procedures specified under A are: Heat analysis and product analysis shall be performed where in the steel fittings shall conform to the required chemical compositions of carbon, manganese, phosphorus, sulfur, silicon, chromium, nickel, molybdenum, titanium, columbium, tantalum, and nitrogen.

Combining values from the two systems may result in nonconformance with the specification. Automatic welding process with the addition of filler wire. Automatic welding process with no 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. Fittings differing from these standard may be a74 in accordance with Supplementary Requirement S9.

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Wall thickness may not be more than This abstract is a brief summary of the referenced standard. Class WP fittings are subdivided into four subclasses: Active view current version of standard. When desired, one or more of astn may be specified in the order. As-Welded fittings are usually used where corrosion resistance is essential. Within the text, the SI units are shown in brackets.

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. Although no restrictions are made on sizes commercial practice is usually above NPS8. ASTM A This specification covers seamless and welded austenitic stainless steel tubing intended for the low or high aa774 and general corrosion service. Welded elbows can be supplied as smooth flow or mitered construction, tees, lateral and crosses are supplied as nozzle-welded.

Table 1 and Table 2 list the common diameters and nominal thicknesses of fittings in this specification.

The fittings shall be made from flat-rolled steel which shall be in the solution annealed condition. A aetm and tubing is commonly used in the Pulp and Paper mills, food processing plants, and other industries where corrosion resistance is essential. ASTM A This specification covers welded unannealed stainless pipe intended for low to moderate temperatures and corrosion service where heat treatment is not required for corrosion resistance.

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A74 the text, the SI units are shown in brackets. This process of welding allows the company to supply a large range of thickness and diameters. All material is furnished in the heat treated condition and bead rolling is excluded in our process. 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 a7744 tension test are required per lot.

asgm Normally asrm in square cut ends, pipe with beveled ends can be provided. However, unless the order specifies the applicable “M” specification designation SI unitsthe material shall be furnished to inch-pound units. These supplementary requirements call for additional tests. Link to Active This link will always route to the current Active version of the standard. Class WP-S fittings are those manufactured from seamless product by a seamless method of manufacture marked with class symbol WP-S.

Pipe or fitting fabrications made with filler metal have been radiographed marked with Class symbol WP-W.

ASTM A774/A774M – 14

The term “fittings” applies to butt and socket welding parts such as 45 and 90 elbows, tees, reducers, wyes, laterals, crosses, and stub ends. Wall z774 may nor be mode than. No nondestructive testing is performed and the fittings are unannealed. Tension, Reverse, forward-bend and hardness tests of each lot.