介绍
国际标准化组织 (国际标准化组织) 是国家标准机构的全球联盟 (ISO成员机构). 国际标准的制定通常通过ISO技术委员会进行. 每个对已成立技术委员会的主题感兴趣的成员机构都有权在该委员会中派代表参加. 与 ISO 联络的国际政府和非政府组织也参与了这项工作. ISO 与国际电工委员会密切合作 (国际电工委员会) 关于电气标准化的所有问题.

用于开发本文件的程序以及用于进一步维护的程序在第 1 部分中进行了描述。 1 ISO/IEC 指令的. 尤其, 应注意不同类型ISO文件所需的不同批准标准. 本文件根据 ISO/IEC 指令部分的编辑规则起草 2 (请参阅 iso.org/directives).

请注意，本文档的某些元素可能受专利权保护. ISO 不负责识别任何或所有此类专利. 在文件准备过程中确定的任何专利权的详细信息将在 ISO 收到的专利声明的简介和/或列表中找到 (参见 iso.org/patents).

国际标准化组织 4998-2014 “用于结构质量的连续热浸镀锌和锌铁涂层碳钢板”

本文档中使用的任何商品名称都是为了方便用户而提供，并不构成认可.

与合格评定相关的特定 ISO 术语和表达的含义的描述, 以及有关 ISO 遵守 WTO 技术性贸易壁垒原则的信息 (技术性贸易壁垒), 请参阅以下网址: 前言 – 补充资料

负责本文件的委员会是 ISO/TC 17, 钢, 小组委员会SC 12, Flat Rolled Products for Continuous rolling mills.

The sixth edition cancels and replaces the technically revised fifth edition (国际标准化组织 4998:2011).

国际标准化组织 4998-2014 “用于结构质量的连续热浸镀锌和锌铁涂层碳钢板”

1 范围
1.1 This international standard specifies the structural quality of continuous hot-dip galvanized and zinc-iron alloy coated carbon steel plates.

1.2 The product is suitable for applications where the importance of corrosion resistance cannot be overstated.

1.3 Steel plates are available in a variety of grades, coating quality, ordering conditions and surface treatment.

1.4 This International standard does not include steels classified as commercial or tensile quality by ISO 3575[2].

2 规范性引用文件
本文件规范性引用了下列文件中的全部或部分内容，并作为其应用所必需的. 对于注明日期的参考文献, 仅引用的版本适用. 对于未注明日期的参考文献, 新版本的参考 (包括任何修订) 适用.

国际标准化组织 2178, Non-magnetic coatings on magnetic substrates – 涂层厚度测量 – Magnetic methods

国际标准化组织 3497, metallic coatings – 涂层厚度测量 – X-ray spectroscopy

国际标准化组织 6892-1, 金属材料 – Tensile testing – 部分 1: Test methods at room temperature

国际标准化组织 7438, 金属材料 – 弯曲试验

国际标准化组织 16163:2012, Continuous hot-dip coated steel plate products. Size and shape tolerances

国际标准化组织 4998-2014 “用于结构质量的连续热浸镀锌和锌铁涂层碳钢板”

3 术语和定义
就本文件而言, 以下术语和定义适用.

3.1 Continuous hot dip galvanized steel plate

Product obtained by hot dip coating of cold reduced sheet coil or hot rolled descaling sheet coil on a continuous galvanizing line

3.2 Common Coating

A coating formed as a result of the unrestricted growth of zinc crystals during normal solidification

笔记 1: This coating has a metallic luster and is of the type commonly used for a variety of applications. It can be supplied as S or N; 然而, its appearance can be varied and not suitable for decorative painting.

3.3 Minimal glitter coating

A coating obtained by limiting normal flash formation during zinc solidification

笔记 1: The surface appearance of the product may lack uniformity within or between coils.

国际标准化组织 4998-2014 “用于结构质量的连续热浸镀锌和锌铁涂层碳钢板”

3.4 Smooth surface treatment

Smooth coating produced by skin treatment of coating materials to achieve improved surface conditions compared to ordinary coated products

3.5 Zinc-iron alloy coating

A coating produced by machining galvanized steel plates so that the coating formed on the base material consists of a zinc-iron alloy

笔记 1: The product is named ZF, has no glitter, is usually dull in appearance, and for some applications can be painted immediately without further treatment in addition to normal cleaning. Zinc-iron alloy coatings are powdery during heavy molding.

3.6 Differentiated Coatings

A coating that has a specified coating quality name on one surface and a different coating quality name on another surface

国际标准化组织 4998-2014 “用于结构质量的连续热浸镀锌和锌铁涂层碳钢板”

3.7 Skin Pass

Light cold rolling of galvanized steel sheet

笔记 1: The purpose of the skin channel is to produce a higher degree of surface smoothness, thereby improving the appearance of the surface. Skin channels can also temporarily reduce surface conditions called Luder’s Lines or grooves that occur during the manufacturing of finished parts. Skin channels can also control and improve flatness. Skin passing results in increased hardness and loss of ductility.

3.8 A lot

Plates of the same grade under 50 tons are rolled to the same thickness and coating conditions

仅标准信息部分是公开的. 查看完整内容, 需要通过官方渠道购买标准.