标准编号:	GB/T 5156-2022
中文名称:	镁及镁合金热挤压型材
英文名称:	Magnesium and magnesium alloy extruded profiles
行业分类:	GB    国家标准
ICS分类:	77.120.20 77.120.20    镁和镁合金 77.120.20
发布机构:	国家市场监督管理总局 国家标准化管理委员会
发布日期:	2022-03-09
实施日期:	2022-10-1
标准状态:	即将实施
替代旧标准:	GB/T 5156-2013 镁合金热挤压型材
翻译语言:	英文
文件格式:	PDF
中文字符数:	15000 字
翻译价格(元):	950.00 元
交付时间:	付款后 1~2 个工作日

Foreword

This document is drafted in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardized documents".

This document replaces GB/T 5156-2013 "hot extruded magnesium alloy profiles", compared with GB/T 5156-2013, in addition to structural adjustments and editorial changes, the main technical changes are as follows

Compared with GB/T 5156-2013, in addition to structural adjustment and editorial changes, the main technical changes are as follows.

a) Added Mg9999, VW75M, M1C, M2S, ZE20M, ZK60A, ZM51M grades (see 4.1).

b) Added quality assurance requirements for ingots for profiles (see Chapter 5).

c) Changed the requirement of twist degree (see 6.2.2.6, 3.3.5 of 2013 version)

d) Added mechanical properties of VW75M, M1C, M2S, ZE20M, ZK60A, ZM51M alloys (see 6.4).

e) The diagram of the slope of the cut has been added (see 7.2.6).

f) Added Rockwell hardness, Brinell hardness and Vickers hardness test methods for profiles (see 7.4).

g) changed the sampling (see 8.4, 2013 version of 5.4).

h) changed the requirements for packaging, marking, transport and storage of magnesium and magnesium alloys (see Chapter 9, Chapter 6 of the 2013 edition).

Please note that some of the contents of this document may relate to patents. The issuer of this document does not assume responsibility for identifying patents.

This document is presented by the China Nonferrous Metals Industry Association.

This document is attributed to the National Technical Committee for Standardization of Non-ferrous Metals (SAC/TC243).

The successive versions of this document and the document it replaces were issued as follows.

--- This document was first issued in 1985, the first revision in 2003, the second revision in 2013, this is the third revision.

Magnesium and magnesium alloy hot extrusion profiles

1 Scope

This document specifies the classification of magnesium and magnesium alloy hot extrusion profiles, quality assurance, requirements, test methods, inspection rules and signs, packaging, transportation, storage and quality certification and ordering,

Transportation, storage and quality certificate and order form (or contract) content.

This document applies to magnesium and magnesium alloy hot extrusion profiles (hereinafter referred to as profiles).

2 normative reference documents

The content of the following documents through the normative references in the text and constitute the essential provisions of this document. Among them, note the date of the cited documents, only

The date corresponds to the version applicable to this document; do not note the date of the referenced documents, the latest version (including all the change orders) applicable to this document.

GB/T 230.1 Rockwell hardness test for metallic materials Part 1: Test method

GB/T 231.1 Brinell hardness test for metallic materials Part 1: Test method

GB/T 3499 primary magnesium ingot

GB/T 4297 Deformed magnesium alloy low times the organization test method

GB/T 4340.1 Vickers hardness test for metallic materials Part 1: Test method

GB/T 5153 Deformed magnesium and magnesium alloy grades and chemical composition

GB/T 8170 numerical modification rules and limit values of the representation and determination

GB/T 13748 (all parts) magnesium and magnesium alloy chemical analysis methods

GB/T 16865 deformation of aluminum, magnesium and its alloy processing products with tensile test specimens and methods

GB/T 17432 deformed aluminum and aluminum alloy chemical composition analysis sampling method

GB/T 32792 magnesium alloy processing products packaging, marking, transportation, storage

YS/T 627 deformed magnesium and magnesium alloy round cast ingot



3 Terminology and definitions

This document does not need to define the terms and definitions.

4 Classification

4.1 Product classification

The grade and state of the profile should be in accordance with the provisions of Table 1. When other grades and states are required, the supply and demand sides should consult and specify in the order form (or contract).

4.2 Product markings

The marking of the profile in accordance with the product name, standard number, grade, state, size, specification order.

5 Quality Assurance

The dimensional deviation, low-frequency organization and appearance quality of the ingots used in the production of profiles shall conform to the provisions of YS/T 627.

6 Requirements

6.1 Chemical composition

The chemical composition of Mg9999 shall conform to the provisions of GB/T 3499, and the chemical composition of other grades shall conform to the provisions of GB/T 5153.

6.2 Dimensional deviation

6.2.1 General requirements

The allowable deviation of the profile dimensions shall conform to the provisions of the technical drawings signed between the supply and demand sides or refer to the "Aluminum and Aluminum and Magnesium Alloy Extrusion Profiles Atlas".

If the dimensional deviation is not specified in the technical drawings or "Aluminum and Aluminum and Magnesium Alloy Extrusion Profiles Catalogue", the dimensional deviation of the profile shall conform to the provisions of 6.2.2.

If the demand side has special requirements on dimensional deviation, both sides shall consult and specify in the order form (or contract).

6.2.2 Other requirements

6.2.2.1 Deviation of cross-sectional dimensions

The deviation of cross-sectional dimensions shall conform to the provisions of Table 2.

6.2.2.2 Angular deviation

The allowable deviation of angle is ±2°.

6.2.2.3 Plane clearance

6.2.2.3.1 The plane gap of solid profile shall not be greater than 2% of the plane width of the inspected profile, but the maximum gap value shall not exceed 1mm.

6.2.2.3.2 The plane gap between the semi-hollow profile and the hollow profile shall not be greater than 2.5% of the plane width of the inspected profile, but the maximum gap value shall not exceed 2mm.

6.2.2.4 Curvilinear clearance

When the curved surface clearance is required, the demander shall provide the inspection sample, and the clearance shall not be more than 1% of the arc length. The demand side does not provide the sample plate can not be tested.

6.2.2.5 Bend

Curvature should be in accordance with the provisions of Table 3.

6.2.2.6 Twisting degree

The twisting degree of each meter shall not be more than 5% of the nominal width of the profile, and the twisting degree of the whole length shall not be more than 12% of the nominal width of the profile.

6.2.2.7 Radius of rounded corners

The deviation of the radius of the rounded corners shall conform to the provisions of Table 4.

6.2.2.8 Length

6.2.2.8.1 The allowable deviation shall be +20mm for the profile delivered in fixed length or double length, and in the case of delivery in double length, 5 mm of sawing shall be left for each double length.

6.2.2.8.2 The delivery length of profiles not delivered in fixed length shall be 1000mm~6000mm.

6.2.2.9 Cutting slope

Both ends of the profile shall be cut flush, and the slope of the cut shall not exceed 3°.

6.2.2.10 Waviness

Profile wave height should not exceed 1mm, not more than 1 wave per meter length, but the height of less than 0.2mm waves are not counted.

6.3 Room temperature tensile mechanical properties

Room temperature tensile mechanical properties of the profile should be consistent with the provisions of Table 5, the demand side has other special requirements, should be negotiated between the supply and demand, and in the order

The bill of lading (or contract) in the specified.

6.4 Hardness

If the demander has hardness requirements or the profile cannot be tested for room temperature tensile mechanical properties, both the supplier and the demander shall negotiate and specify the hardness value in the order form (or contract).

The hardness value requirement and test method shall be specified in the order form (or contract).

7 Test methods

7.1 Chemical composition

7.1.1 Analysis and arbitration of the chemical composition of the profile according to GB/T 13748 (all parts) method, sampling should be consistent with the provisions of GB/T 17432.

7.1.2 Analysis of the value of the determination should be used to modify the comparison method, the value of the rules of modification according to the relevant provisions of GB / T 8170, the number of modifications should be

GB / T 3499 and GB / T 5153 in the limit of the number of consistent.

7.2 Dimensional deviation

7.2.1 Deviation of cross-sectional dimensions

Measurement should be used when the accuracy of not less than 0.02mm gauges.

7.2.2 Plane clearance

When the profile is placed on the inspection platform and the profile is stabilized by its own weight, the maximum clearance between the profile and the platform is measured along the width direction

(Tp), as shown in Figure 1, which is the plane clearance of the profile (Tp).

7.2.3 Curvilinear clearance

As shown in Fig. 2, the standard sample is pressed against the curved surface of the profile, and the maximum clearance value (Tq) between the curved surface of the profile and the standard sample is measured, which is

is the surface clearance of the profile (Tq).

7.2.4 Twisting degree

7.2.4.1 When measuring the twist degree, the profile is placed on the inspection platform and one end of the profile is pressed against the platform, and when the profile is stabilized by its own weight, the twist degree is measured.

When the profile is stabilized by its own weight, the clearance value between the profile buckling and the platform is measured. Calipers, stoppers or special tools can be used for testing.

7.2.4.2 When measuring the full-length twist degree of the profile, as shown in Figure 3, the difference between T1 and T2 is the difference between T2 and T1, which is the full-length twist degree of the profile.

The difference between T2 and T1 is the full-length twist degree of the profile.

7.2.4.3 To measure the twist degree of any one meter, the ends of any one meter are selected as points A and B on the profile, as shown in Fig. 3, and the full-length twist degree is measured by the method of

Using the method of measuring the twist degree, determine the height of warping at point A and point B respectively, and calculate the difference between the twist degree of point A and point B as the twist degree of the meter.

7.2.5 Round corner radius

The radius (R1, R2) of the rounded corners of the profile should be measured by using the angle ruler and other gauges, as shown in Figure 4.

7.2.6 Slope of cut

When measuring, the profile is placed on the inspection platform, and after the profile is stabilized, the angle (β) between the end face of the profile and the inflection ruler is measured with the inflection ruler, and the measurement method is shown in Figure 5.

The measurement method is shown in Figure 5.

8 Inspection rules

8.1 Inspection and acceptance

8.1.1 The profile shall be inspected by the supplier to ensure that the product quality conforms to the provisions of this document and the order form (or contract), and fill in the quality certificate.

8.1.2 The demander shall retest the received products according to the provisions of this document. The results of the re-inspection and the provisions of this document and the order form (or contract)

If it is not in conformity with the provisions of this document and the order form (or contract), it shall be put forward in writing to the supplier, and the supply and demand sides shall negotiate to solve the problem. Objections belonging to the appearance quality and dimensional deviation shall be raised within one month from the date of receipt of

Within one month from the date of receipt of the product, other performance objections should be raised within three months from the date of receipt of the product. For arbitration, the supply and demand

Both parties shall jointly conduct arbitration sampling at the demand side.

8.2 Group Batch

Profiles shall be submitted in batches for acceptance, and each batch shall be composed of the same alloy grade, state, and specification, with unlimited batch weight.

8.3 Inspection items

Each batch of profiles shall be factory inspected, and the inspection items shall be chemical composition, dimensional deviation, room temperature tensile mechanical properties, hardness, low-frequency organization

and appearance quality inspection.

8.4 Sampling

Sampling of profiles shall conform to the provisions of Table 6.

Extrusion tail, each batch (or heat treatment furnace) by the number of roots to take 10%, not less than 2, each taking a sample

8.5 Determination of test results

8.5.1 If the chemical composition of any specimen fails, the profile can distinguish the melting time, the melting time represented by the specimen is judged to be unqualified, and the other melting time is judged to be unqualified.

The profiles will be tested in turn and judged one by one. If the profile cannot be distinguished from the molten one, the batch of profiles shall fail.

8.5.2 If the dimensional deviation of any product fails to pass, the profile is judged to be unqualified.

9 Sign, packaging, transportation, storage and quality certificate

9.1 Marking

9.1.1 The following marks shall be put on the front end of the accepted profiles (or the label with the following marks shall be hung).

a) Inspection seal of the technical supervision department of the supplier.

b) batch number.

c) Qualified grade.

d) the state of supply.

9.1.2 The width of the flat part of the profile is less than 40mm or the shape of the front of the profile is inconvenient to print two tags per batch (or per box).

The label should be marked with the alloy number, supply status, batch number and inspection mark of the technical supervision department of the supplier.

9.1.3 The packaging box of the profile should be marked with reference to the provisions of GB/T 32792.

9.2 Packaging, transportation and storage

9.2.1 Profiles should be oiled packaging, if there are special requirements, should be determined by mutual agreement between the supply and demand, and indicated in the order form (or contract).

9.2.2 Profile packaging, transportation, storage of other requirements refer to the provisions of GB / T 32792.

9.3 Quality certificate

Each batch of profiles should be accompanied by a product quality certificate, which states.

a) Name of the supplier.

b) Product name.

c) Brand.

d) Condition.

e) Size and specification.

f) Product lot number.

g) Net weight and number of pieces.

h) Analytical test results of each item.

i) Inspection seal of the supplier's quality inspection department.

j) This document number.

k) packaging date (or factory date).

10 Order form (or contract) content

Order form (or contract) for the products listed in this document should include the following.

a) Product name.

b) Brand number.

c) Status.

d) Size and specification.

e) Weight (or number of pieces).

f) Special requirements of the demander.

---Special dimensional deviation requirements.

---Special room temperature tensile properties requirements.

---Special hardness requirements.

---Special appearance quality requirements.

---Special packaging requirements.

---Other special requirements.

g) This document is numbered.

Foreword
1 Scope
2 normative reference documents
3 Terminology and definitions
4 Classification
5 Quality Assurance
6 Requirements
7 Test methods
8 Inspection rules
9 Sign, packaging, transportation, storage and quality certificate
10 Order form (or contract) content

前言
本文件按照GB/T 1.1-2020《标准化工作导则 第1部分:标准化文件的结构和起草规则》的规定起草。
本文件代替GB/T 5156-2013《镁合金热挤压型材》,与GB/T 5156-2013相比,除结构调整和编
辑性改动外,主要技术变化如下:
a) 增加了 Mg9999、VW75M、M1C、M2S、ZE20M、ZK60A、ZM51M牌号(见4.1);
b) 增加了型材用铸锭质量保证要求(见第5章);
c) 更改了扭拧度要求(见6.2.2.6,2013年版的3.3.5)
d) 增加了VW75M、M1C、M2S、ZE20M、ZK60A、ZM51M合金的力学性能(见6.4);
e) 增加了切斜度示意图(见7.2.6);
f) 增加了型材洛氏硬度、布氏硬度、维氏硬度检验方法(见7.4);
g) 更改了取样(见8.4,2013年版的5.4);
h) 更改了镁及镁合金包装、标志、运输、贮存的要求(见第9章,2013年版的第6章)。
请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任。
本文件由中国有色金属工业协会提出。
本文件由全国有色金属标准化技术委员会(SAC/TC243)归口。
本文件及其所代替文件的历次版本发布情况为:
--- 本文件于1985年首次发布,2003年第一次修订,2013年第二次修订,本次为第三次修订。
镁及镁合金热挤压型材
1 范围
本文件规定了镁及镁合金热挤压型材的分类、质量保证、要求、试验方法、检验规则和标志、包装、
运输、贮存及质量证明书与订货单(或合同)内容。
本文件适用于镁及镁合金热挤压型材(以下简称型材)。
2 规范性引用文件
下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中,注日期的引用文件,仅
该日期对应的版本适用于本文件;不注日期的引用文件,其最新版本(包括所有的修改单)适用于本文件。
GB/T 230.1 金属材料 洛氏硬度试验 第1部分:试验方法
GB/T 231.1 金属材料 布氏硬度试验 第1部分:试验方法
GB/T 3499 原生镁锭
GB/T 4297 变形镁合金低倍组织检验方法
GB/T 4340.1 金属材料 维氏硬度试验 第1部分:试验方法
GB/T 5153 变形镁及镁合金牌号和化学成分
GB/T 8170 数值修约规则与极限数值的表示和判定
GB/T 13748(所有部分) 镁及镁合金化学分析方法
GB/T 16865 变形铝、镁及其合金加工制品拉伸试验用试样及方法
GB/T 17432 变形铝及铝合金化学成分分析取样方法
GB/T 32792 镁合金加工产品包装、标志、运输、贮存
YS/T 627 变形镁及镁合金圆铸锭
3 术语和定义
本文件没有需要界定的术语和定义。
4 分类
4.1 产品分类
型材的牌号、状态应符合表1的规定。需要其他牌号、状态时,应由供需双方协商,并在订货单(或合同)中注明。
4.2 产品标记
型材的标记按照产品名称、标准编号、牌号、状态、尺寸、规格的顺序表示。
5 质量保证
型材生产用铸锭尺寸偏差、低倍组织及外观质量应符合YS/T 627的规定。
6 要求
6.1 化学成分
Mg9999的化学成分应符合GB/T 3499的规定,其他牌号的化学成分应符合GB/T 5153的规定。
6.2 尺寸偏差
6.2.1 一般要求
型材尺寸允许偏差应符合供需双方签订的技术图纸的规定或参见《铝及铝、镁合金挤压型材图册》,
技术图纸或《铝及铝、镁合金挤压型材图册》中未规定尺寸偏差时,型材尺寸偏差应符合6.2.2的规定。
需方对尺寸偏差有特殊要求时,应由供需双方协商,并在订货单(或合同)中注明。
6.2.2 其他要求
6.2.2.1 截面尺寸偏差
截面尺寸偏差应符合表2的规定。
6.2.2.2 角度偏差
角度允许偏差为±2°。
6.2.2.3 平面间隙
6.2.2.3.1 实心型材平面间隙不应大于被检型材平面宽度的2%,但最大间隙值不应超过1mm。
6.2.2.3.2 半空型材与空心型材平面间隙不应大于被检型材平面宽度的2.5%,但最大间隙值不应超过2mm。
6.2.2.4 曲面间隙
曲面间隙有要求时,由需方提供检验样板,其间隙不大于弧长的1%。需方未提供样板可不检验。
6.2.2.5 弯曲度
弯曲度应符合表3的规定。
6.2.2.6 扭拧度
每米长度上的扭拧度不应大于型材公称宽度的5%,全长上的扭拧度不应大于型材公称宽度的12%。
6.2.2.7 圆角半径
圆角半径偏差应符合表4的规定。
6.2.2.8 长度
6.2.2.8.1 定尺或倍尺交货的型材,允许偏差应为+20mm,倍尺交货时,每个倍尺应留5mm锯口。
6.2.2.8.2 非定尺交货的型材,交货长度应为1000mm~6000mm。
6.2.2.9 切斜度
型材两端应切齐,切斜度不应超过3°。
6.2.2.10 波浪度
型材波浪高度不应超过1mm,每米长度上不应多于1处波浪,但高度小于0.2mm的波浪不计在内。
6.3 室温拉伸力学性能
型材的室温拉伸力学性能应符合表5的规定,需方有其他特殊要求时,应由供需双方协商,并在订
货单(或合同)中注明。
6.4 硬度
需方有硬度要求或型材无法进行室温拉伸力学性能试验时,应由供需双方协商,并在订货单(或合
同)中注明硬度值要求及试验方法。
7 试验方法
7.1 化学成分
7.1.1 型材的化学成分分析及仲裁按 GB/T 13748(所有部分)规定的方法进行,取样应符合GB/T 17432的规定。
7.1.2 分析数值的判定应采用修约比较法,数值修约规则按GB/T 8170的有关规定进行,修约数位应
与GB/T 3499及GB/T 5153中规定的极限数位一致。
7.2 尺寸偏差
7.2.1 截面尺寸偏差
进行测量时,应采用精度不低于0.02mm的量具。
7.2.2 平面间隙
将型材放置在检查平台上,型材借自重达到稳定时,沿宽度方向测量型材与平台之间的最大间隙值
(Tp),如图1所示,该值即为型材的平面间隙(Tp)。
7.2.3 曲面间隙
如图2所示,将标准样板紧贴在型材的曲面上,测量型材曲面与标准样板之间的最大间隙值(Tq),该值即
为型材的曲面间隙(Tq)。
7.2.4 扭拧度
7.2.4.1 扭拧度测量时,将型材置于检查平台上,并使其一端紧贴平台,型材借助自重达到稳定时,测量
型材翘起与平台间的间隙值。可用卡尺、塞尺或专用工具进行检测。
7.2.4.2 测量型材全长扭拧度时,如图3所示,测量型材翘起高度T1 和T2,T2 与T1 的差值即为型材
的全长扭拧度。
7.2.4.3 测量任意一米扭拧度时,在型材上选定任一米两端为A 点及B 点,如图3所示,采用测定全长
扭拧度方法,分别测定A 点及B 点的翘起高度,并计算A 点和B 点的扭拧度差值即为该米扭拧度。
7.2.5 圆角半径
测量应使用角度尺等量具测量型材存在圆角处的半径(R1、R2),测量方法如图4所示。
7.2.6 切斜度
测量时,将型材置于检查平台,待型材稳定后,使用拐尺配合测量型材端面与拐尺间角度(β),测量
方法如图5所示。
8 检验规则
8.1 检查和验收
8.1.1 型材应由供方进行检验,保证产品质量符合本文件及订货单(或合同)的规定,并填写质量证明书。
8.1.2 需方应对收到的产品按本文件的规定进行复验。复验结果与本文件及订货单(或合同)的规定
不符时,应以书面形式向供方提出,由供需双方协商解决。属于外观质量及尺寸偏差的异议,应在收到
产品之日起一个月内提出,属于其他性能的异议,应在收到产品之日起三个月内提出。如需仲裁,供需
双方应在需方共同进行仲裁取样。
8.2 组批
型材应成批提交验收,每批应由同一合金牌号、状态、规格组成,批重不限。
8.3 检验项目
每批型材应进行出厂检验,检验项目应为化学成分、尺寸偏差、室温拉伸力学性能、硬度、低倍组织
及外观质量检验。
8.4 取样
型材的取样应符合表6的规定。
挤压尾端,每批(或热处理炉)按根数取10%,不少于2根,每根取1个试样
8.5 检验结果的判定
8.5.1 任一试样的化学成分不合格时,型材能区分熔次的,判该试样代表的熔次型材不合格,其他熔次
型材依次检验,逐个熔次判定。不能区分熔次的判该批型材不合格。
8.5.2 任一产品的尺寸偏差不合格时,判该根型材不合格。
9 标志、包装、运输、贮存及质量证明书
9.1 标志
9.1.1 在验收合格的型材前端应打上下列印记(或挂有下列印记的标牌):
a) 供方技术监督部门的检印;
b) 批号;
c) 合格牌号;
d) 供应状态。
9.1.2 平面部分的宽度小于40mm的型材或形状不便打印的型材前端每批(或每箱)拴挂两个标牌。
标牌上应打上合金牌号、供应状态、批号和供方技术监督部门的检印。
9.1.3 型材的包装箱标志参照GB/T 32792的规定执行。
9.2 包装、运输和贮存
9.2.1 型材宜涂油包装,如有特殊要求时,应由供需双方协商确定,并在订货单(或合同)中注明。
9.2.2 型材的包装、运输、贮存的其他要求参照GB/T 32792的规定执行。
9.3 质量证明书
每批型材应附有产品质量证明书,其上注明:
a) 供方名称;
b) 产品名称;
c) 牌号;
d) 状态;
e) 尺寸规格;
f) 产品批号;
g) 净重及件数;
h) 各项分析检验结果;
i) 供方质检部门的检印;
j) 本文件编号;
k) 包装日期(或出厂日期)。
10 订货单(或合同)内容
订购本文件所列产品的订货单(或合同)内应包括下列内容:
a) 产品名称;
b) 牌号;
c) 状态;
d) 尺寸规格;
e) 重量(或件数);
f) 需方的特殊要求:
---特殊的尺寸偏差要求;
---特殊的室温拉伸力学性能要求;
---特殊的硬度要求;
---特殊的外观质量要求;
---特殊的包装要求;
---其他特殊要求;
g) 本文件编号。​​​​