BS EN 3666:2020,Aerospace series – Heat resisting alloy NI-PH2601 – Solution treated and cold worked – Bar for forged fasteners – D ≤ 50 mm – 1 550 MPa ≤ Rm ≤ 1 830 MPa.BS EN 3666:2020 pdf free download.
This document is part of the series of EN metallic material standards for aerospace applications. The
general organization of this series is described in EN 4258.
This document has been prepared in accordance with EN 4500-003.
2 Normative references
EN 4700-002, Aerospace series – Steel and heat resisting alloys – Wrought products – Technical specification-Part 002: Bars and sections )