GB/T 39989-2021 Translated English of Chinese Standard (GBT39989-2021): Superelastic titanium-nickel shape memory alloy bar and wire
www.ChineseStandard.net, 30 juil. 2021 - 16 pages
This document specifies the technical requirements, test methods, inspection rules, marking, packing, transporting, storing, accompanying documents and order form content for superelastic titanium-nickel shape memory alloy bar and wire. This document is applicable to round and rectangular superelastic titaniumnickel shape memory alloy bar and wire used for making spectacle frames, orthopedic wires, guide wires, communication antennas, and for construction industry and power industry, etc.
acceptance accompanying documents accordance appearance quality average grain bar and wire bending arm carried chemical analysis chemical composition conformity corresponding cut length cylindrical support defects delivered Determination diameter Dimensions and shape drawing rod elements Figure A.1 hard hot-straightened indicated Industry Inspection items inspection result lot of products macrostructure manufacturing method marking mechanical properties meet the requirements memory alloy bar Metals Microstructure and macrostructure nonconformity offset distance order form packing performance Permissible variations Product designation product shall meet provisions of GB/T purchaser has requirements remove requirements of Table roll by roll/coil roll/coil by coil ruler shape memory alloy specifications starting position Stick by stick stick per lot stick roll storing superelastic titanium-nickel shape supplier is allowed supply surface Table A.1 Take 1 stick Take 1 transverse technical Tensile Test methods titanium alloys titanium and titanium titanium-nickel shape memory transporting transverse sample variety