ASTM B804 / ASME SB804 UNS N08367 and UNS N08926 Welded Pipe supplier & distributor in India

ASTM B-804

SPECIFICATION FOR UNS N08367 AND UNS N08926 WELDED PIPE
UNS N08367 AND UNS N08926

All products furnished under the SB specification are intended for application under the rules of Section III of the ASME Boiler and Pressure Vessel Code. Manufacture of such products is limited to manufacturers who hold the appropriate ASME Certificate of Authorization and Code Symbol Stamp. In addition to conforming to this specification, the manufacturer shall meet all applicable requirements of Section III of the Code. The plate used to fabricate the pipe shall conform to SB-688. The joints shall be full penetration butt welds as obtained by double welding or by ther means, which will obtatin the same quality of deposited and weld metal on the inside and outside. Welds using metal backing strips which remain in place are excluded. The product is subject to all requirements of Section III of the Code including welding, heat treatment, nondesturctive examinarequirements of Section III of the Code including welding, heat treatment, nondestructive examination, authorized inspection at the point of manufacture, and application of the Code Symbol Stamp. The applicable ASME Partial Data Report Form signed by an Authorized Inspector and a certified mill test report shall be furnished for each lot of pipe. The term "lot" applies to all pipe of the same mill heat of material and wall thickness which ish heat treated in one furnace charge. For pipe that is not heat treated in a batch-type furnace that is automatically controlled within a 50? range and isequipped with recording pyrometers so that the heating records are available, a lot may be defined the same as for continuous furmaces. Each length of pipe shall be marked in such a manner as to identify each such piece with the lot adn the certified mill test repot.

1.Scope

1.1 This specification covers UNS N08367 and UNS N0926 welded pipe for general corrosion applications. (Althoug no resrictions are placed on the sizes of pipe that may be furnished under this specification, commercial practice is commonly limited to sizes no less than 8 in. nominal diameter.)

1.2 Six class of pipe are coverd as follows:

1.2.1 Class 1 pipe shall be double welded by processes employing filler metal in all passes and shall be completely radiographed.

1.2.2 Class 2 pipe shall be double welded by processes employing fillermetal in all passes. No radiography is required.

1.2.3 Class 3 pipe shall be double welded by processes employing fillermetal in all passes except the inside root weld may be made without the addition of filler metal. Welds are to be completely radoigraphed.

1.2.4 Class 4 pipe shall be double welded by processes employing fillermetal in all passes except the inside root weld may be made without the addition of filler metal. No radiography is required.

1.2.5 Class 5 pipe shall be double welded by processes employing filler metal in all passes except that the pass exposed to the inside pipe surface may be made without the addition of filler metal. welds are to be completely radiographed.

1.2.6 Class 6 pipe shall be single welded by processes employing filler metal in all passws except that the pass exposed to the inside pipe surface may be made without the addition of filler metal. No radio graphy is required.

1.3 The values stated in inch-pound nits are to be regarded as the standard. The values given in parentheses are for infotmation only.

1.4 The following safety hazards caveat pertains only to the test method portion, Section 12, of this standard: This standard does not purport to address all of tne safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine tne applicability of regulatry limitations prior to use.

TABLE1 MECHANICAL PROPERTY REQUIREMENTS

	Tensile Strength, min.		Yield Strength,[Note(1)]min.		Elongation in 2 in. or 50.8mm, min., %
	ksi	Mpa	ksi	MPa	Elongation in 2 in. or 50.8mm, min., %
UNS NO 8367	95	655	45	310	30
UNS NO 8926	94	650	43	295	35

NOTE: (1) Yield strength shall be determined by the offset method at 0.2% limiting permanent set in accordance with Test Methods E 8. An alternative method of determing yield strength may bebased o a total extension under load of 0.5%. 6.2 Transverse Guided Weld Bend Test Requirements - Bends made in accordance with Fing. 1 shall be acceptable if no cracks or other imperfections exceeding 1/8 in. (3.2 mm) in any direction are present in the weld metal or between the weld and the pipe metal after bending. Cracks that originate along the edges of the speciement during testing, and that are less than 1/4 in. (6.3 mm) measured in any direction, shall not be considered.

Specime Preparation The test specimens required by this specification shall conform to those described in Test Mthods and Definitions A 370. The transverse tension and bend test specimens shall be flattened cold before final machining to size if flattening is required. Tension and bend test specimens shall be the full thickness of the material as rolled and shall be machined to the form and dimensions.

Product successfully added to your shopping cart

There are 64 items in your cart. There is 1 item in your cart.

Categories

Surplus stock of Steel Pipes & Tubes:

Specialist in:

Offering best price on:

Widest inventory of:

ASTM B804 / ASME SB804 UNS N08367 and UNS N08926 Welded Pipe supplier & distributor in India

Steel pipe & tube ready inventory: