BS EN 4570:2020 pdf free.Aerospace series – Heat resisting alloy X12CrNiCoMoW21 -20 – Solution treated- Forgings- De ≤100 mm.
BS EN 4570 1 Scope This document specifies the requirements relating to:  Heat resisting alloy X12CrNiCoMoW21-20 Solution treated Forgings De≤100mm for aerospace applications. ASD-STAN Designation: FE-PA4901.2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 4263, Aerospace series 一Heat resisting alloy FE-PA4901 (X12CrNiCoMoW21-20}- As forged一 Forging stock- a or D≤200 mm一690 MPas Rm S 960 MPa EN 4700-006, Aerospace series- Steel and heat resisting alloys 一- Wrought products 一Technical specification一Part 006: Pre-production and production forgings 3 Terms and definitions  No terms and definitions are listed in this document. ISO and IEC maintain terminological databases for use in standardization at the following addresses:●ISO Online browsing platform: available at http://www.iso.org/obp ●IEC Electropedia: available at http://www.electropedia.org/BS EN 4570 pdf download.