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1.1 This specification contains various requirements that, with the exception of Sections 5 and 10, are mandatory requirements to the following ASTM nickel and nickel alloy, seamless pipe and tube specifications:

Title of Specification ASTM Designation 2 Nickel Seamless Pipe and Tube B 161 Seamless Nickel and Nickel Alloy, Condenser and B 163 Heat Exchanger Tubes Nickel-Copper Alloy (UNS N04400) Seamless Pipe and Tube B 165 Nickel-Chromium-Iron Alloys (UNS N06600, N06601, and B 167 N06690) Seamless Pipe and Tube Nickel-Iron-Chromium Alloy Seamless Pipe and Tube B 407 Nickel-Iron-Chromium-Molybdenum-Copper Alloy (UNS B 423 N08825 and N08221) Seamless Pipe and Tube Nickel-Chromium-Molybdenum-Columbium Alloys (UNS B 444 N06625) Pipe and Tube Nickel-Chromium-Iron-Columbium-Molybdenum-Tungsten B 445 Alloy (UNS N06102) Seamless Pipe and Tube Nickel-Iron-Chromium-Silicon Alloys (UNS N08330 and B 535 UNS N08332) Seamless Pipe Copper-Beryllium Alloy Forgings and Extrusion B 570 3 Seamless Nickel and Nickel-Cobalt Alloy Pipe and B 622 Tube UNS N08028 Seamless Tubes B 668 UNS N08904, UNS N08925 and UNS N08926 Seamless Pipe B 677 and Tube Iron-Nickel-Chromium-Molybdenum Alloys (UNS N08366 B 690 and UNS N08367) Seamless Pipe and Tube Ni-Cr-Mo-Co-W-Fe-Si Alloy (UNS N06333) Seamless Pipe B 722 and Tube Seamless UNS N08020, UNS N08026, and UNS N08024 B 729 Nickel-Alloy Pipe and Tube

1.2 One or more of the test requirements of Section 5 apply only if specifically stated in the product specification or in the purchase order.

1.3 In case of conflict between a requirement of the product specification and a requirement of this general specification, only the requirement of the product specification needs to be satisfied.

1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

1.5 The following safety hazards caveat pertains only to the test requirements portion, Section 5, of this specification: This standard does not purport to address all of the safety concerns, 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 the applicability of regulatory limitations prior to use.