GB/T 39989-2021 Translated English of Chinese Standard (GBT39989-2021): Superelastic titanium-nickel shape memory alloy bar and wire
www.ChineseStandard.net, 2021 M07 30 - 16 páginas
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.
accompanying documents allowed to inspect appearance quality automatically bounce back average grain bar and wire bending arm chemical composition chromium cobalt cut length cylindrical support axis Cylindrical support diameter diameter Parallel distance Dimensions and shape Fastening clamp block Figure A.1 hot-straightened inspection is nonconformity Inspection items inspection result length Cylindrical support lot of products manufacturing method mechanical properties meet the requirements memory alloy bar Microstructure and macrostructure nickel shape memory niobium number of samples offset distance Order form content packing Permissible variations Product designation product shall meet provisions of GB/T purchaser has requirements requirements of Table roll by roll/coil roll/coil by coil room-temperature superelasticity Sample length Cylindrical sample will automatically shape memory alloy starting position Stick by stick stick per lot stick roll superelastic titanium-nickel shape supplier is allowed supply Table A.1 Take 1 stick Take 1 transverse Tensile testing titanium and titanium titanium-nickel shape memory transverse sample Xi'an