{"id":69717,"date":"2026-05-17T17:27:47","date_gmt":"2026-05-17T17:27:47","guid":{"rendered":"https:\/\/evgroupchina.com\/encyclopedia-of-metal\/en-10215\/"},"modified":"2026-05-19T15:30:42","modified_gmt":"2026-05-19T15:30:42","slug":"en-10215","status":"publish","type":"wiki","link":"https:\/\/evgroupchina.com\/en\/encyclopedia-of-metal\/en-10215\/","title":{"rendered":"EN 10215"},"content":{"rendered":"

Technical regulations and scope of the EN 10215 standard<\/h2>\n

The European standard EN 10215 defines strict requirements for flat steel products obtained by continuous hot-dip coating in an aluminum-zinc alloy. The EV Group China product range includes low-carbon steels optimized for cold forming processes (see Table 1), as well as structural steels (see Table 2) with a nominal thickness of up to 3.0 mm. The thickness values specified in the specifications correspond to the final state of the finished product after the application of the protective layer.<\/p>\n

Mechanical properties of low-carbon steels for cold forming<\/h3>\n\n\n\n\n\n\n\n\n
Steel Grade<\/th>\nSteel Number<\/th>\nCoating Type<\/th>\nYield Strength, Re<\/sub>, N\/mm2, max<\/th>\nTensile Strength, Re<\/sub>, N\/mm2, max<\/th>\nElongation, %, min<\/th>\n<\/tr>\n<\/thead>\n
DX51D<\/td>\n1.0226<\/td>\n+AZ<\/td>\n–<\/td>\n500<\/td>\n22<\/td>\n<\/tr>\n
DX52D<\/td>\n1.0350<\/td>\n+AZ<\/td>\n300<\/td>\n420<\/td>\n26<\/td>\n<\/tr>\n
DX53D<\/td>\n1.0355<\/td>\n+AZ<\/td>\n260<\/td>\n380<\/td>\n30<\/td>\n<\/tr>\n
DX54D<\/td>\n1.0306<\/td>\n+AZ<\/td>\n220<\/td>\n350<\/td>\n36<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Table 1<\/i><\/p>\n

Characteristics of structural steels with aluminum-zinc coating<\/h3>\n\n\n\n\n\n\n\n\n\n
Steel Grade<\/th>\nSteel Number<\/th>\nCoating Type<\/th>\nYield Strength, Re<\/sub>, N\/mm2, max<\/th>\nTensile Strength, Re<\/sub>, N\/mm2, max<\/th>\nElongation, %, min<\/th>\n<\/tr>\n<\/thead>\n
S250GD<\/td>\n1.0242<\/td>\n+AZ<\/td>\n250<\/td>\n330<\/td>\n19<\/td>\n<\/tr>\n
S280GD<\/td>\n1.0244<\/td>\n+AZ<\/td>\n280<\/td>\n360<\/td>\n18<\/td>\n<\/tr>\n
S320GD<\/td>\n1.0250<\/td>\n+AZ<\/td>\n320<\/td>\n390<\/td>\n17<\/td>\n<\/tr>\n
S350GD<\/td>\n1.0529<\/td>\n+AZ<\/td>\n350<\/td>\n420<\/td>\n16<\/td>\n<\/tr>\n
S550GD<\/td>\n1.0531<\/td>\n+AZ<\/td>\n550<\/td>\n560<\/td>\n–<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Table 2<\/i><\/p>\n

The standard applies to strip steel of any width, as well as sheet products cut from coils with a width of 600 mm or more. The standard chemical composition of the protective alloy includes 55% aluminum, 1.6% silicon, and the remainder is zinc. EV Group China products of this type are in demand for projects requiring exceptional corrosion resistance of the steel substrate.<\/p>\n

This standard does not regulate:<\/strong><\/p>\n

    \n
  • Products with zinc-aluminum (ZA) coating according to EN 10214.<\/li>\n
  • Sheet products with hot-dip galvanizing according to EN 10142.<\/li>\n
  • Structural galvanized steel according to EN 10147.<\/li>\n
  • Electrolytically galvanized flat products according to EN 10152.<\/li>\n
  • Steel products with organic protective coatings.<\/li>\n<\/ul>\n

    Coating mass parameters<\/h2>\n\n\n\n\n\n\n\n\n
    Coating<\/th>\nMinimum coating mass<\/th>\n<\/tr>\n
    Triple spot test<\/th>\nSingle test<\/th>\n<\/tr>\n<\/thead>\n
    100<\/td>\n100<\/td>\n85<\/td>\n<\/tr>\n
    150<\/td>\n150<\/td>\n130<\/td>\n<\/tr>\n
    185<\/td>\n185<\/td>\n160<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    When ordering from EV Group China, it is possible to agree on non-standard coating parameters depending on the specifics of the part’s forming and weldability. It should be noted that a significant increase in coating thickness may reduce ductility and complicate the welding process.<\/p>\n

    Surface quality classification<\/h2>\n

    Supplied products are classified into three categories:<\/strong><\/p>\n

      \n
    • Category A:<\/strong> Minor defects are allowed, such as spangle heterogeneity, dark spots, passivation marks, or slight scratches.<\/li>\n
    • Category B:<\/strong> Surface after additional skin-passing. Tool marks, dents, and scratches are acceptable, but pitting (pits) is excluded.<\/li>\n
    • Category C:<\/strong> Top-quality surface for demanding decorative or engineering tasks.<\/li>\n<\/ul>\n","protected":false},"featured_media":0,"template":"","meta":[],"wiki_category":[114],"class_list":["post-69717","wiki","type-wiki","status-publish","hentry","wiki_category-en"],"_links":{"self":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki\/69717","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki\/69717\/revisions"}],"wp:attachment":[{"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/media?parent=69717"}],"wp:term":[{"taxonomy":"wiki_category","embeddable":true,"href":"https:\/\/evgroupchina.com\/en\/wp-json\/wp\/v2\/wiki_category?post=69717"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}