A691 2-1/4CR specification covers carbon and alloy steel pipe, electrofusion welded with added filler metal, suitable for high temperature and pressure service.
A691Gr2-1/4CrCL22 is a CR-MO heat-resistant steel. Its basic ingredients are 2.25% CR and 1% MO, which is equivalent to SA-335P22.
Heat-resistant steel pipes can be divided into three categories: low-alloy heat-resistant steel pipes, medium-alloy heat-resistant steel pipes and high-alloy heat-resistant steel pipes according to the mass fraction of their alloy components.
A691 2-1/4CR welded steel pipe covers pipes with an outside diameter of 16 inches [400 mm] and wall thicknesses up to 3 inches [75 mm]. Pipe with other dimensions may be supplied provided it complies with all other requirements of this code.
Specification : ASTM A691 / ASME SA691
Dimensions : ASTM, ASME and API
Outside Diameter : 6-2500mm; WT:1-200mm
Wall thickness : 0.3mm – 50 mm
Size : 1/8"NB TO 30"NB IN
Type : ERW / Welded Pipes
Form : Round, Square, Rectangular, Oval, Hydraulic Etc
Length : Single Random, Double Random & Required Length
End : Plain End, Beveled End, Treaded
Schedules : SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules
electric resistance welded tube
Why Choose GNEE
GNEE has 14 steel production lines, 10 processing equipment for processing, bending, coating, heat treatment, cutting, drilling, beveling, tempering, surface treatment, etc., complete testing equipment and strong technical force. The annual production capacity is more than 60,000 tons.
We warmly welcome customers at home and abroad to visit our company and give us valuable suggestions. We are willing to establish long-term cooperation with customers from all over the world on the basis of mutual benefit and common development.
