標準號：BS EN 10271-1999
中文標準名稱：電鍍鋅鎳涂覆鋼平板制品.技術(shù)交付條件
英文標準名稱：Electrolytically zinc-nickel (ZN) coated steel flat products. Technical delivery conditions
標準類型：H46
發(fā)布日期：1999/3/15 12:00:00
實施日期：1999/3/15 12:00:00
中國標準分類號：H46
國際標準分類號：77.140.50
適用范圍：1 This European Standard specifies requirements for continuously electrolytic zinc-nickel coated cold rolled flat products of low carbon steels suitable for cold forming according to Table 1 and Table 2 in rolled widths ≥ 600 mm and thicknesses from 0.35 mm up to and including 3 mm, delivered as strip (in coil form), sheet, slit strip or cut lengths obtained from slit strip or sheet.The coating is composed of Zn with a Ni-content of 10.5 % to 13 %. 2 This European Standard may also be applied to the coating requirements of continuously electrolytic zinc-nickel coated cold rolled flat products of: a) steels according to EN 10139 (cold rolled strip in rolled widths < 600 mm); b) other types of low carbon steel for cold forming; c) steels normally characterized by minimum yield strength values in addition to formability parameters, e.g: —steels with high yield strength and improved formability according to EN 10268 or other microalloyed steels; —rephosphorized steels and bake-hardening steels; —general purpose structural steels. 3 By special agreement at the time of ordering this European Standard may be applied to the coating requirements of continuously electrolytic zinc-nickel coated hot-rolled steel flat products (e.g. according to EN 10025, EN 10111, EN 10149-1 to EN 10149-3 etc.). 4 The coating masses, surface qualities and surface finishes are given in 5.9, 5.11 and Table 3. As the mass of the zinc-nickel coating applied is relatively small, the material is not intended to withstand outside exposure without further chemical treatment and painting. 5 This European Standard is not applicable to —hot-dip zinc coated steel strip and sheet (see EN 10142 and EN 10147); —electrolytically zinc coated cold rolled flat products (see EN 10152); —continuously hot-dip aluminium-silicon (AS) coated steel strip and sheet (see EN 10154); —continuously organic coated steel flat products (see EN 10169); —continuously hot-dip zinc-aluminium (ZA) coated steel strip and sheet (see EN 10214); —continuously hot-dip aluminium-zinc (AZ) coated steel strip and sheet (see EN 10215).