ASTM A333 Black Steel Round Pipe Specification:
NPS 1/4″ – 42″
Schedules 10 through 160, STD, XH and XXH
Scope
ASTM A333 Black Steel Pipe can be seamless and welded carbon and alloy steel pipe. ASTM A333 Black Steel Pipe is intended for use at low temperatures. Several grades of ferritic steel are included. Some product sizes may not be available under this specification because heavier wall thicknesses have an adverse affect on low-temperature impact properties.
ASTM A333 Black Steel Pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation.
Heat Treatment Requirements
All seamless and welded pipe shall be treated to control their microstructure by the following methods: Normalizing per A 333/A 333M-05 section 4.2.1.1; section 4.2.1.2 or section 4.2.1.3 Quenched and Tempered per A 333/A 333M – 05 section 4.2.2.1 Double Normalized and Tempered per A 333/A 333M – 05 section 4.2.2.2
ASTM A333 Black Steel Pipe Lengths required shall be specified on order. If no definite lengths required, following practice applies: Single Random — 17′ ~ 24′ lengths Double Random — 36′ ~ 44′ lengths.
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