TECHNICAL LIBRARY · ASTM NICKEL AND NICKEL-COBALT TUBULARS
ASTM B622-23 — Seamless Nickel and Nickel-Cobalt Alloy Pipe and Tube
Procurement reference for the seamless nickel and nickel-cobalt alloy pipe and tube families listed by ASTM B622.
Edition control: ASTM B622-23 is the active edition identified in the official ASTM catalogue checked on 31 August 2026. Confirm the authorised publication and purchase-order requirements before use.
Scope in Procurement
ASTM B622 covers seamless pipe and tube in the nickel and nickel-cobalt alloy UNS families expressly listed by the specification. Exact alloy identification is essential because the document covers many distinct compositions.
RFQ and Product Controls
- Exact UNS alloy and ASTM B622-23 edition
- Pipe or tube form, manufacturing condition and required heat treatment
- Nominal size or outside diameter, wall basis, wall thickness, length, ends and tolerances
- Surface condition, straightness and descaling or atmosphere-control route
- Chemical and mechanical requirements for the selected UNS alloy
- Tension, hydrostatic and nondestructive electric examination requirements
- Inspection-document type, heat and lot traceability, marking, packaging and destination
The material identity must remain traceable from the producing heat and lot through manufacture, testing, inspection documentation, marking and final release.
Scope Boundary
ASTM B622 groups many different alloys under one tubular-product route. It does not make those alloys equivalent, and it does not by itself confirm corrosion resistance, design-code acceptance or suitability for a particular process.
Related MNK Technical Pages
Official Publication and Access Policy
Check the official record for ASTM B622-23. This page is an original procurement-oriented summary. Protected grade tables, property values, tolerances, dimensions and test clauses are not reproduced on this website.
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Send the Exact Nickel-Alloy Tubular Requirement
Related Welded Nickel-Alloy Routes
B619/B619M and B626 are welded product routes. They must not be treated as interchangeable with the B622 seamless specification.
High-Strength and General Seamless-Tubular References
Verified procurement references for active specialty and high-strength nickel-alloy tubular specifications:
Related Pure-Nickel Seamless Route
Use the current product specification, exact UNS designation and authorised edition when preparing an inquiry.