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ASTM A351/A351M-12b
Standard Specification for Castings, Austenitic, for Pressure-Containing Parts (Includes all amendments And changes 5/29/2013).
Automaticky přeložený název:
Standardní specifikace pro odlitky , austenitické , pro tlak - díly obsahující
NORMA vydána dne 1.11.2012
Informace o normě:
Označení normy: ASTM A351/A351M-12b
Poznámka: NEPLATNÁ
Datum vydání normy: 1.11.2012
Kód zboží: NS-2175
Počet stran: 5
Přibližná hmotnost: 15 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Anotace textu normy ASTM A351/A351M-12b :
Keywords:
austenitic stainless steel, pressure containing parts, stainless steel, steel castings, ICS Number Code 77.140.80 (Iron and steel castings)
Doplňující informace
| 1. Scope | ||||||||||||||
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1.1 This specification2 covers austenitic steel castings for valves, flanges, fittings, and other pressure-containing parts (Note 1). 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. |
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| 2. Referenced Documents | ||||||||||||||
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