IS 9683 : 1980 Carbon and low alloy steel forgings for fired and unfired pressure vessels
UDC 669.14-134+669.15.194-134 : 621.642-986+621.18 | MTD 16 |
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Reaffirmed 2018 |
1 Scope
1.1 This standard covers six grades of carbon and low alloy steel forgingsused in the construction of fired and unfired pressure vessels.
1.1.1 The term forgings used in this standard shall include forgedfittings, covers, heads, component sections or complete vessels intended forcontainment of gaseous or liquid material under pressure.