Specification for steel butt-welding pipe fittings for the petroleum industry. Wrought carbon and ferritic alloy steel fittings. Metric units.
STANDARD published on 22.3.1968
Designation standards: BS 1640-3:1968
Publication date standards: 22.3.1968
The number of pages: 22
Approximate weight : 66 g (0.15 lbs)
Country: British technical standard
Category: Technical standards BS
Dimensions and tolerances, materials, methods of manufacture, pressure/temperature ratings, marking, inspection, tests for seamless and fabricated fittings: 45° long radius elbows, 90° long and short radius elbows, 90° long radius tangent elbows, long and short radius return bends, equal and reducing tees, concentric and eccentric reducers, caps and lap-joint stub ends, of sizes 19 mm to 609.5 mm. Welding-neck flanges not included. Status: Confirmed