Standard Specification for GRAY IRON CASTINGS FOR VALVES, FLANGES, AND PlPE FI1TINGS
|Publication Date:||1 January 1966|
|ICS Code (Flanges, couplings and joints):||23.040.60|
|ICS Code (Metal fittings):||23.040.40|
These specifications carver the foi- owing three classes of gray iron for casb- Bgs such as valve bodies, fittings, langea, including parts to be assembled into valves, manufactured in advance ind Supplied for sale from stock by the jnamifacturer, jobber, or other dealer:
Class A.-Regular gray iron,
Class B.-Higher-strength gray iron including the so-called scmisteels used in valves and fitting
Class C.-High-test ca6t iron whether | regular or alloy composition.