Standard Specification for Wrought Ferritic, Ferritic/Austenitic, and Martensitic Stainless Steel Piping Fittings (Includes all amendments and changes 10/21/2024).
NORMA vydána dne 1.7.2024
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Designation standards: ASTM A815/A815M-24a
Publication date standards: 1.7.2024
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: American technical standard
Kategorie: Technické normy ASTM
This specification covers two general classes, WP and CR, of wrought ferritic, ferritic/austenitic, and martensitic stainless steel fittings of seamless and welded construction. Class WP fittings are subdivided into four subclasses: Classes WP-S, WP-W, WP-WX, and WP-WU. The material for fittings shall consist of forgings, bars, plates, or seamless or welded tubular products. The steel shall be melted by electric furnace, vacuum furnace, or electric furnace followed by vacuum or electroslag-consumable remelting. Forging or shaping operations shall be performed by hammering, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding, machining or by combination of two or more of these operations. The materials shall undergo heat treatment and shall follow the required cooling process and tempering temperature. Chemical and product analyses shall be performed and shall conform to the required chemical composition in carbon, manganese, phosphorus, silicon, sulfur, nickel, chromium, molybdenum, copper, nitrogen, and titanium. The mechanical properties of the fitting material shall conform to the required values in yield strength, tensile strength, elongation, and hardness.
Keywords:
corrosive service applications, ferritic/austenitic stainless steel, ferritic stainless steel, martensitic stainless steel, pipe fittings-steel, piping applications, pressure containing parts, stainless steel fittings ,, ICS Number Code 23.040.40 (Metal fittings)