A672 B65 Carbon Steel EFW Pipe

A672 B65 carbon steel welded pipe is a high-strength carbon steel pipe, suitable for high-temperature environments, commonly used as boiler tubes.

A672 B65 Pipe Specification

A672 EFW Pipe Mechanical Properties

1 Tension Test:
1.1 Requirements--Transverse tensile properties of the welded joint shall meet the minimum requirements for ultimate tensile strength of the specified plate material. In addition for Grades Dxx,Hxx,Jxx,and Nxx in Classes 3x,4x,and 5x transverse tensile properties of the base plate, shall be determined on specimens cut from the heat-treated pipe. These properties shall meet the mechanical test requirements of the plate specification.
1.2 Number of Tesfs-One test specimen shall be made to represent each lot of finished pipe.
1.3 Test Specimen Location and Orientation-The test specimens shall be taken transverse to the weld at the end of the finished pipe and may be fattened cold before final machining to size.
1.4 Test Method--The test specimen shall be made in accordance with QW-150 in Section IX of the ASME Boiler and Pressure Vessel Code. The test specimen shall be tested at room temperature in accordance with Test Methods and Definitions A 370.
2 Transverse-Guided-Weld-Bend Tests:
2.1 Requirements-The bend test shall be acceptable if no cracks or other defects exceeding / in.(3.2 mm) in any direction are present in the weld metal or between the weld and the base metal after bending. Cracks that originate along the edges of the specimen during testing, and that are less than V in. (6.4 mm) measured in any direction shall not be considered
2.2 Number of Tesrs--One test (two specimens) shall be made to represent each lot of finished pipe.
2.3 Test Specimen Location and Orientation--Two bend test specimens shall be taken transverse to the weld at the end of the finished pipe. As an alternative by agreement between the purchaser and the manufacturer, the test specimens may be taken from a test plate of the same material as the pipe, the test plate being attached to the end of the cylinder and welded as a prolongation of the pipe longitudinal seam.
2.4 Tesr Method-The test requirements of Test Methods and Definitions A 370, paragraph A2.5.1.7 shall be met. For wall thickness over % in. (9.5 mm) but less than in.(19.0 mm) side-bend tests may be made instead of the face and root-bend tests. For wall thicknesses 4 in. and over both specimens shall be subjected to the side-bend test.
3. Pressure Test--Classes X2 and X3 pipe shall be tested in accordance with Specification A 530/A 530M. Section 20.

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