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ASTM A319-71(2015)
Standard Specification for Gray Iron Castings for Elevated Temperatures for Non-Pressure Containing Parts
Automaticky přeložený název:
Standardní specifikace pro šedé litiny pro zvýšené teploty pro netlakové díly obsahující
NORMA vydána dne 1.11.2015
Informace o normě:
Označení normy: ASTM A319-71(2015)
Poznámka: NEPLATNÁ
Datum vydání normy: 1.11.2015
Kód zboží: NS-620447
Počet stran: 2
Přibližná hmotnost: 6 g (0.01 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Kategorie - podobné normy:
Anotace textu normy ASTM A319-71(2015) :
Keywords:
 chemical composition, elevated temperature, gray iron, iron castings, non-pressure containing, tensile strength ,, ICS Number Code 77.140.80 (Iron and steel castings)
Doplňující informace
| 1. Scope | ||
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1.1 This specification covers three classes of gray iron suitable for castings exposed to temperatures encountered in such service as grate bars, stoker links, stoker parts, oil still furnace parts, firebox parts, ingot molds, glass molds, caustic pots, and metal melting pots. Note 1: This specification is general, covering cast irons
normally used for the above types of service, at temperatures as
high as 1400°F (760°C). It is not intended to imply that all three
classes are suitable throughout this entire temperature range
without regard to actual service stresses. Some are suitable for
long service at the lower temperatures only, unless low stresses
are involved.
1.2 The three classes of gray iron covered by this specification are as follows: 1.2.1 Class I, possessing superior resistance to thermal shock, 1.2.2 Class II, possessing average resistance to thermal shock and a moderately good tensile strength (tensile strengths above 30 000 psi (207 MPa) may be expected), and 1.2.3 Class III, possessing a higher tensile strength than either Classes I or II (tensile strengths as high as 40 000 psi (276 MPa) may be expected). 1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. |
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| 2. Referenced Documents | ||
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