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Standard Specification for Castings, Austenitic, for Pressure-Containing Parts (Includes all amendments And changes 5/6/2024).
Přeložit název
NORMA vydána dne 1.5.2018
Označení normy: ASTM A351/A351M-18e1
Poznámka: NEPLATNÁ
Datum vydání normy: 1.5.2018
Kód zboží: NS-968668
Počet stran: 7
Přibližná hmotnost: 21 g (0.05 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
austenitic stainless steel, pressure containing parts, stainless steel, steel castings,, ICS Number Code 77.140.80 (Iron and steel castings)
1. Scope | ||||||||||||||
1.1 This specification2 covers austenitic steel castings for valves, flanges, fittings, and other pressure-containing parts (Note 1). Note 1: Carbon steel castings for pressure-containing parts
are covered by Specification A216/A216M, low-alloy steel castings by
Specification A217/A217M, and
duplex stainless steel castings by Specification A995/A995M.
1.2 A number of grades of austenitic steel castings are included in this specification. Since these grades possess varying degrees of suitability for service at high temperatures or in corrosive environments, it is the responsibility of the purchaser to determine which grade shall be furnished. Selection will depend on design and service conditions, mechanical properties, and high-temperature or corrosion-resistant characteristics, or both. 1.2.1 Because of thermal instability, Grades CE20N, CF3A, CF3MA, and CF8A are not recommended for service at temperatures above 800 °F [425 °C]. 1.3 Supplementary requirements of an optional nature are provided for use at the option of the purchaser. The Supplementary requirements shall apply only when specified individually by the purchaser in the purchase order or contract. 1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. 1.4.1 This specification is expressed in both inch-pound units and in SI units; however, unless the purchase order or contract specifies the applicable M-specification designation (SI units), the inch-pound units shall apply. Within the text, the SI units are shown in brackets or parentheses. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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2. Referenced Documents | ||||||||||||||
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Poslední aktualizace: 22.12.2024 (Počet položek: 2 217 000)
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