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Standard Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use
Automaticky přeložený název:
Standardní specifikace pro osazení investice , oceli a slitiny , společných požadavků, pro průmyslové použití
NORMA vydána dne 1.6.2005
Označení normy: ASTM A957-05
Poznámka: NEPLATNÁ
Datum vydání normy: 1.6.2005
Kód zboží: NS-5000
Počet stran: 8
Přibližná hmotnost: 24 g (0.05 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
casting, investment casting, master heat, steel, sub-heat, ICS Number Code 77.100 (Ferroalloys)
1. Scope | ||||||||||||||||||||||||||
1.1 This specification covers a group of requirements that are mandatory for castings produced by the investment casting process to meet the metallurgical requirements of the following steel casting specifications issued by ASTM.
1.2 This specification also covers a group of supplementary requirements that may be applied to the above specifications as indicated therein. These are provided for use when additional testing or inspection is desired and apply only when specified individually by the purchaser in the order. 1.3 When investment castings are ordered, the requirements stated in this specification form an integral part of the material specification. In cases of conflict, the requirements of this specification shall take precedence over the individual material specification requirements. 1.4 The values stated in either inch-pound or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. Inch-pound units are applicable for material ordered to Specification A 957 and SI units for material ordered to Specification A 957M. |
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