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建筑屋面和幕墙用冷轧不锈钢钢板和钢带
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GBT 34200-2017
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标准编号: GB/T 34200-2017 (GB/T34200-2017)
中文名称: 建筑屋面和幕墙用冷轧不锈钢钢板和钢带
英文名称: Cold rolled stainless steel plate, sheet and strip for construction roof and curtain
行业: 国家标准 (推荐)
中标分类: H46
字数估计: 10,122
发布日期: 2017-09-07
实施日期: 2018-06-01
起草单位: 宝钢不锈钢有限公司、冶金工业信息标准研究院、宁波宝新不锈钢有限公司、山东泰山钢铁集团有限公司
归口单位: 全国钢标准化技术委员会(SAC/TC 183)
提出机构: 中国钢铁工业协会
发布机构: 中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会
GB/T 34200-2017: 建筑屋面和幕墙用冷轧不锈钢钢板和钢带
GB/T 34200-2017 英文名称: Cold rolled stainless steel plate, sheet and strip for construction roof and curtain
1 范围
本标准规定了建筑屋面和幕墙用冷轧不锈钢钢板和钢带的订货内容、尺寸、外形、重量、技术要求、试验方法、检验规则、包装、标志及质量证明书。
本标准适用于厚度0.3mm~4.0mm的建筑屋面和幕墙用不锈钢冷轧宽钢带(以下简称宽钢带)及
其卷切定尺钢板(以下简称卷切钢板)、纵剪冷轧宽钢带(以下简称纵剪宽钢带)。
2 规范性引用文件
下列文件对于本文件的应用是必不可少的。凡是注日期的引用文件,仅注日期的版本适用于本文
件。凡是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 222 钢的成品化学成分允许偏差
GB/T 223.3 钢铁及合金化学分析方法 二安替比林甲烷磷钼酸重量法测定磷量
GB/T 223.5 钢铁 酸溶硅和全硅含量的测定 还原型硅钼酸盐分光光度法
GB/T 223.11 钢铁及合金 铬含量的测定 可视滴定或电位滴定法
GB/T 223.16 钢铁及合金化学分析方法 变色酸光度法测定钛量
GB/T 223.18 钢铁及合金化学分析方法 硫代硫酸钠分离-碘量法测定铜量
GB/T 223.25 钢铁及合金化学分析方法 丁二酮肟重量法测定镍量
GB/T 223.26 钢铁及合金 钼含量的测定 硫氰酸盐分光光度法
GB/T 223.28 钢铁及合金化学分析方法 α-安息香肟重量法测定钼量
GB/T 223.36 钢铁及合金化学分析方法 蒸馏分离-中和滴定法测定氮量
GB/T 223.40 钢铁及合金 铌含量的测定 氯磺酚S分光光度法
GB/T 223.53 钢铁及合金化学分析方法 火焰原子吸收分光光度法测定铜量
GB/T 223.58 钢铁及合金化学分析方法 亚砷酸钠-亚硝酸钠滴定法测定锰量
GB/T 223.68 钢铁及合金化学分析方法 管式炉内燃烧后碘酸钾滴定法测定硫含量
GB/T 223.69 钢铁及合金 碳含量的测定 管式炉内燃烧后气体容量法
GB/T 228.1-2010 金属材料 拉伸试验 第1部分:室温试验方法
GB/T 230.1 金属材料 洛氏硬度试验 第1部分:试验方法(A、B、C、D、E、F、G、H、K、N、T标尺)
GB/T 231.1 金属材料 布氏硬度试验 第1部分:试验方法
GB/T 232 金属材料 弯曲试验方法
GB/T 247 钢板和钢带的包装、标志及质量证明书的一般规定
GB/T 708-2006 冷轧钢板和钢带的尺寸、外形、重量及允许偏差
GB/T 2975 钢及钢产品 力学性能试验取样位置及试样制备
GB/T 3280-2015 不锈钢冷轧钢板和钢带
GB/T 4340.1 金属材料 维氏硬度试验 第1部分:试验方法
GB/T 8170 数值修约规则与极限数值的表示和判定
GB/T 10125 人造气氛腐蚀试验 盐雾试验
GB/T 11170 不锈钢 多元素含量的测定 火花放电原子发射光谱法(常规法)
GB/T 14203 火花放电原子发射光谱分析法通则
GB/T 17505 钢及钢产品 交货一般技术要求
GB/T 20066 钢和铁 化学成分测定用试样的取样和制样方法
GB/T 20123 钢铁 总碳硫含量的测定 高频感应炉燃烧后红外吸收法(常规方法)
GB/T 20124 钢铁 氮含量的测定 惰性气体熔融热导法(常规方法)
GB/T 20125 低合金钢 多元素含量的测定 电感耦合等离子体原子发射光谱法
GB/T 24195 金属和合金的腐蚀 酸性盐雾、“干燥”和“湿润”条件下的循环加速腐蚀试验
GB/T 20878-2007 不锈钢和耐热钢 牌号及化学成分
3 订货内容
3.1 按本标准订货的合同或订单应包括下列内容:
a) 标准编号;
b) 产品名称;
c) 牌号;
d) 尺寸及精度;
e) 边缘状态;
f) 表面加工类型;
g) 交货状态;
h) 交货重量(数量)。
3.2 如订货合同中未注明尺寸及不平度精度、边缘状态、包装方式,则按普通的尺寸和不平度精度、不切边状态交货,并按供方提供的包装方式包装。
4 尺寸、外形、重量
4.1 尺寸范围
钢板和钢带的公称尺寸范围见表1,推荐的公称尺寸应符合GB/T 708-2006中5.2的规定。根据
需方要求,经供需双方协商,可供应其他尺寸的产品。
4.2 尺寸、外形及允许偏差
钢板和钢带尺寸、外形及允许偏差应符合GB/T 3280-2015的规定。
4.3 重量
4.3.1 钢板按理论或实际重量交货。按理论重量交货时,理论计重所采用的厚度为允许的最大厚度和最小厚度的算术平均值,宽度和长度采用公称尺寸值。钢的密度见GB/T 20878-2007的附录A,未规定时,由供需双方协商确定。
4.3.2 钢带按实际重量交货。
5 技术要求
5.1 牌号及化学成分
5.1.1 钢的牌号及化学成分(熔炼分析)应符合表2~表4的规定。各牌号推荐使用的地区参见附录
A,本标准与相关标准相近牌号对照参见附录B。
5.1.2 钢的成品化学成分允许偏差应符合GB/T 222的规定。
5.2 冶炼方法
钢宜采用粗炼钢水加炉外精炼。
5.3 交货状态
钢板和钢带经冷轧后,可经热处理及酸洗或类似处理后交货,必要时可进行矫直、平整或研磨。
5.4 力学性能和工艺性能
5.4.1 经固溶处理的奥氏体不锈钢的力学性能应符合表5的规定。
5.4.2 经固溶处理的奥氏体·铁素体不锈钢的力学性能应符合表6的规定。
5.4.3 经退火处理的铁素体不锈钢的力学性能和工艺性能应符合表7的规定。
5.4.4 对于几种硬度试验,可根据钢板和钢带的不同尺寸和状态按其中一种方法试验。
5.4.5 弯曲试验时,试样弯曲后的外表面不准许有目视可见的裂纹。
5.6 表面加工及表面质量
钢板和钢带的表面加工类型见表8,需方应根据使用需求指定钢板和钢带表面加工类型,经供需双
方协商,并在合同中注明,可提供表8以外的表面加工类型。
5.6.2 钢板和钢带表面质量
5.6.2.1 钢板不应有影响使用的缺陷。可有个别深度小于厚度公差之半的轻微麻点、擦划伤、压痕、凹坑、辊印和色差等不影响使用的缺欠。允许局部修磨,但应保证钢板最小厚度。
5.6.2.2 钢带不应有影响使用的缺陷。但成卷交货钢带由于一般没有除掉缺陷的机会,允许带有少量不正常的部分。对不经抛光的钢带,允许有个别深度小于厚度公差之半的轻微麻点、擦划伤、压痕、凹坑、辊印和色差等不影响使用的缺陷。
5.6.2.3 钢带边缘应平整,切边钢带边缘不应有深度大于宽度公差之半的切割不齐和大于钢带厚度公差的毛刺。不切边钢带不应有大于宽度公差的裂边。
5.7 特殊要求
根据需方要求,可对钢板和钢带的化学成分、力学性能、非金属夹杂物、耐腐蚀性能等作特殊要求,具体内容由供需双方协商确定。
6 试验方法
6.2 钢板和钢带公称厚度小于3mm时,拉伸试样推荐采用GB/T 228.1-2010中P5试样;钢板和钢
带公称厚度不小于3mm时,拉伸试样推荐采用GB/T 228.1-2010中P14试样。
6.3 钢板和钢带检验项目和试验方法应符合表9规定。
7 检验规则
7.1 钢板和钢带的检验由供方质量检验部门进行。
7.2 钢板和钢带应成批验收。每批应由同一牌号、同一炉号、同一厚度和同一热处理制度的钢板或钢带组成。
7.3 钢板和钢带取样数量、取样方法及部分应符合表9规定。
7.4 钢板和钢带的复验和判定应符合GB/T 17505的规定。
7.5 力学性能和化学成分试验结果应采用修约值比较法进行修约,修约规则按GB/T 8170的规定
8 包装、标志及质量证明书
钢板和钢带的包装、标志、运输、贮存及质量证明书应符合GB/T 247的规定。
GB/T 34200-2017
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.140.50
H 46
Cold rolled stainless steel plate, sheet and
strip for construction roof and curtain
ISSUED ON. SEPTEMBER 7, 2017
IMPLEMENTED ON. JUNE 1, 2018
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People’s Republic of China;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Ordering content ... 6
4 Dimension, shape, and weight ... 7
5 Technical requirements ... 8
6 Test methods ... 12
7 Inspection rules ... 12
8 Package, marking, and quality certificate ... 13
Annex A (Informative) Recommended regions for each designation ... 14
Annex B (Informative) Comparison table for similar designations of this
Standard and relevant standards ... 15
Cold rolled stainless steel plate, sheet and
strip for construction roof and curtain
1 Scope
This Standard specifies the ordering content, dimension, shape, weight,
technical requirements, test methods, inspection rules, package, marking, and
quality certificate of cold rolled stainless steel plate, sheet and strip for
construction roof and curtain.
This Standard is applicable to the wide cold-rolled steel strip for construction
roof and curtain with a thickness of 0.3mm to 4.0mm (hereinafter referred to as
wide steel strip) as well as its coil slitting cut-to-size steel plate and sheet
(hereinafter referred to as coil slitting steel plate and sheet), and wide cold-
rolled steel strip with longitudinal shear (hereinafter referred to as wide steel
strip with longitudinal shear).
2 Normative references
The following documents are essential to the application of this document. For
dated references, only the editions with the dates indicated are applicable to
this document. For undated references, only the latest editions (including all the
amendments) are applicable to this document.
GB/T 222 Permissible tolerances for chemical composition of steel products
GB/T 223.3 Methods for chemical analysis of iron, steel and alloy -- The
diantipyrylmethane phosphomolybdate gravimetric method for the
determination of phosphorus content
GB/T 223.5 Steel and iron -- Determination of acid-soluble silicon and total
silicon content -- Reduced molybdosilicate spectrophotometric method
GB/T 223.11 Iron, steel and alloy -- Determination of chromium content --
Visual titration or potentiometric titration method
GB/T 223.16 Methods for chemical analysis of iron, steel and alloy -- The
chromotropic acid photometric method for the determination of titanium
content
GB/T 223.18 Methods for chemical analysis of iron, steel and alloy -- The
sodium thiosulfate separation iodimetric method for the determination of
copper content
GB/T 223.25 Methods for chemical analysis of iron, steel and alloy -- The
dimethylglyoxime gravimetric method for the determination of nickel content
GB/T 223.26 Iron, steel and alloy -- Determination of molybdenum content -
- The thiocyanate spectrophotometric method
GB/T 223.28 Methods for chemical analysis of iron, steel and alloy -- The α-
benzoin oxime gravimetric method for the determination of molybdenum
content
GB/T 223.36 Methods for chemical analysis of iron, steel and alloy -- The
neutral titration method for the determination of nitrogen content after
distillation separation
GB/T 223.40 Iron, steel and alloy -- Determination of niobium content by the
GB/T 223.53 Methods for chemical analysis of iron, steel and alloy -- The
flame atomic absorption spectrophotometric method for the determination of
copper content
GB/T 223.58 Methods for chemical analysis of iron, steel and alloy -- The
sodium arsenite-sodium nitrite titrimetric method for the determination of
manganese content
GB/T 223.68 Methods for chemical analysis of iron, steel and alloy -- The
potassium iodate titration method after combustion in the pipe furnace for the
determination of sulfur content
volumetric method after combustion in the pipe furnace
GB/T 228.1-2010 Metallic materials -- Tensile testing -- Part 1. Method of test
at room temperature
GB/T 230.1 Metallic materials -- Rockwell hardness test -- Part 1. Test
method (scales A, B, C, D, E, F, G, H, K, N, T)
GB/T 231.1 Metallic materials -- Brinell hardness test -- Part 1. Test method
GB/T 232 Metallic materials -- Bend test
GB/T 247 General rule of package mark and certification for steel plates
(sheets) and strips
General-purpose
polishing on one or both
sides
Discontinuous
linear texture, and
reflective
USE 150# to 320# abrasive belt for
grinding and leveling
HL surface Cold rolling, pickling, leveling, and grinding
abrasion pattern
USE 150# to 320# abrasive belt for
polishing and leveling, so that the
surface shows continuous abrasion
pattern.
BA surface Cold rolling, and bright annealing
Smooth, bright,
and reflective
Bright annealing is performed in a
cold rolling. Dry hydrogen or a
mixture of dry hydrogen and dry
nitrogen is generally used to
prevent oxidation during annealing.
It is also a commonly used surface
processing for post-process
reprocessing.
5.6.2 Surface quality of steel plates, sheets and strips
5.6.2.1 The steel plates and sheets shall not have defects that will affect their
half of the thickness tolerance, scratches, indentations, pits, roll marks,
chromatic aberrations, and other defects that do not affect the use. Partial
grinding is allowed, but the minimum thickness of the steel plate and sheet shall
be guaranteed.
5.6.2.2 The steel strips shall not have any defects that will affect their use.
However, the delivered steel strips in coil generally do not have the opportunity
to remove defects, allowing for a small number of abnormalities. For steel strips
that are not polished, it is allowed to have minor pitting of which the individual
depth is less than half of the thickness tolerance, scratches, indentations, pits,
5.6.2.3 The edge of the steel strip shall be smooth. The edge of the trimming
strip shall not have uneven cutting of which the depth is greater than half the
width tolerance and burrs of which the depth is greater than the thickness
tolerance of the steel strip. The un-trimming steel strips shall not have raw
edges that are greater than the width tolerance.
5.7 Special requirements
According to the requirements of the demander, special requirements can be
made on the chemical composition, mechanical properties, non-metallic
inclusions, corrosion resistance, etc. of steel plates, sheets and strips. The
batch shall consist of steel plates (sheets) or strips of the same designation,
same furnace number, same thickness, and same heat treatment system.
7.3 The sample size, sampling methods and parts of steel plates, sheets and
strips shall comply with the provisions of Table 9.
7.4 The retesting and determination of steel plates, sheets and strips shall
comply with the provisions of GB/T 17505.
7.5 The test results of mechanical properties and chemical compositions shall
be rounded off using the rounding off comparison method. The rules for
rounding off shall comply with the provisions of GB/T 8170.
The package, marking, transportation, storage, and quality certificate of steel
plates, sheets and strips shall comply with the provisions of GB/T 247.
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