This general specification contains the mandatory requirements to the ASTM standards listed herein for longitudinally welded piping made from nickel and nickel alloys. In case of conflict, the requirements listed in the particular product specification takes precedence over those listed here.

1.1 This specification contains various requirements that, with the exception of Section 5 and Section 10, are mandatory requirements to the following ASTM nickel and nickel alloy, longitudinally welded piping specifications:2

Title of Specification

ASTM
Designation2

Welded UNS N08020 Alloy Pipe

B464/B464M

Welded Nickel-Iron-Chromium Alloy Pipe

B514

Welded Nickel-Chromium-Iron-Alloy (UNS N06600,
 UNS N06603, UNS N06025 and UNS N06045) Pipe

B517

Welded Nickel and Nickel-Cobalt Alloy Pipe

B619/B619M

UNS N08904, UNS N08925, and UNS N08926 Welded Pipe

B673

UNS N08367 Welded Pipe

B675

Nickel-Alloy (UNS N06625, N06219, and N08825) Welded  Pipe

B705

Ni-Cr-Mo-Co-W-Fe-Si Alloy (UNS N06333) Welded Pipe

B723

Welded Nickel (UNS N02200/UNS N02201) and Nickel
 Copper Alloy (UNS N04400) Pipe

B725

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 either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

1.5 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 become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and determine the applicability of regulatory limitations prior to use.

1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.