GB/T 4237-2015 in English

《GB/T 4237-2015不锈钢热轧钢板和钢带》由TC183（全国钢标准化技术委员会）归口，TC183SC6（全国钢标准化技术委员会钢板钢带分会）执行，主管部门为中国钢铁工业协会。
本标准规定了不锈钢热轧钢板和钢带的分类、代号、订货内容、尺寸、外形、重量及允许偏差、技术要求、试验方法、检验规则、包装、标志及产品质量证明书。
本标准适用于耐腐蚀不锈钢热轧厚钢板(以下称厚钢板)、耐腐蚀不锈钢热轧宽钢带(以下称宽钢带)及其卷切定尺钢板(以下称卷切钢板)、纵剪宽钢带,也适用于耐腐蚀不锈钢热轧窄钢带(以下称窄钢带)及其卷切定尺钢带(以下称卷切钢带)。

1 Scope

This standard specifies the classification, codes, ordering information, dimension, shape, weight, permissible deviation, technical requirements, test methods, inspection rules, packaging, marking and product quality certificate of hot rolled stainless steel plate, sheet and strip.
This standard is applicable to corrosion-resistant stainless hot-rolled thick steel plate (hereinafter referred to as thick steel plate), corrosion-resistant stainless steel hot rolled wide strip (hereinafter referred to as wide steel strip) and its rolled cut-to-length steel plate (hereinafter referred to as coil cut steel plate) and longitudinally trimmed wide steel strip. It is also applicable to corrosion-resistant stainless steel hot rolled narrow steel strip (hereinafter referred to as narrow steel strip) and its coiled cut-to-length steel strip (hereinafter referred to as coil cut steel strip).

2 Normative References

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the normative document (including any amendments) applies.
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 223.4 Alloyed Steel - Determination of Manganese Content - Potentiometric or Visual Titration Method
GB/T 223.5 Steel and Iron - Determination of Acid-soluble Silicon and Total Silicon Content - Reduced Molybdosilicate Spectrophotometric Method
GB/T 223.8 Methods for Chemical Analysis of Iron, Steel and Alloy - the Sodium Fluoride Separation-EDTA Titration Method for the Determination of Aluminum Content
GB/T 223.9 Iron Steel and Alloy - Determination of Aluminum Content - Chrom Azurol S Photometric 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 223.19 Methods for Chemical Analysis of Iron, Steel and Alloy - The Neocuproine-chloroform Extraction Photometric Method for the Determination of Copper Content
GB/T 223.23 Iron, Steel and Alloy - Determination of Nickel Content - The Dimethylglyoxime Spectrophotometric Method
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-denzoinoxime Gravimetric Method for the Determination of Molybdenum Content
GB/T 223.33 Methods for Chemical Analysis of Iron, Steel and Alloy - The Chlorophosphonazo mA Photometric Method for the Determination of Cerium Content after Extraction Separation
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 Sulphochlorophenol S Spectrophotometric Method
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 223.60 Methods for Chemical Analysis of Iron, Steel and Alloy - The Perchloric Acid Dehydration Gravimetric Method for the Determination of Silicon Content
GB/T 223.61 Methods for Chemical Analysis of Iron, Steel and Alloy - The Ammonium Phosphomolybdate Volumetric Method for the Determination of Phosphorus 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
GB/T 223.69 Iron Steel and Alloy - Determination of Carbon Contents - Gas-volumetric Method after Combustion in the Pipe Furnace
GB/T 228.1 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 Acceptance, Package, Mark and Certification for Steel Plates (Sheets) and Strips
GB/T 709-2006 Dimension, Shape, Weight and Tolerances for Hot-rolled Steel Plates and Sheets
GB/T 2975 Steel and Steel Products - Location and Preparation of Test Pieces for Mechanical Testing
GB/T 4334 Corrosion of Metals and Alloys - Test Methods for Intergranular Corrosion of Stainless Steels
GB/T 4340.1 Metallic Materials-Vickers Hardness Test - Part 1: Test Method
GB/T 6394 Metal-methods for Estimating the Average Grain Size
GB/T 8170 Rules of Rounding Off for Numerical Values & Expression and Judgment of Limiting Values
GB/T 11170 Stainless Steel - Determination of Multi-Element Contents - Spark Discharge Atomic Emission Spectrometric Method (Routine Method)
GB/T 17505 Steel and Steel Products: General Technical Delivery Requirements
GB/T 20066 Steel and Iron-Sampling and Preparation of Samples for the Determination of Chemical Composition
GB/T 20123 Steel and Iron - Determination of Total Carbon and Sulfur Content Infrared Absorption Method after Combustion in an Induction Furnace (Routine Method)
GB/T 20124 Steel and Iron - Determination of Nitrogen Content - Thermal Conductimetric Method After Fusion in a Current of Inert Gas (Routine Method)
GB/T 20878-2007 Stainless and Heat-resisting Steels - Designation and Chemical Composition

3 Classification and Codes

3.1 Classification according to edge state:
a) Edge cut, EC,
b) Edge maintained, EM.
3.2 Classification according to dimension and shape precision grade:
a) General thickness precision: PT.A;
b) Higher thickness precision: PT.B;
c) General unevenness grade: PF.A;
d) Higher unevenness grade: PF.B.

4 Ordering Information

The contract or order of products ordered according to this standard shall cover the following contents:
a) Standard No.;

Foreword I
1 Scope
2 Normative References
3 Classification and Codes
4 Ordering Information
5 Dimension, Shape, Weight and Permissible Deviation
6 Technical Requirements
7 Test Methods
8 Inspection Rules
9 Packaging, Marking and Quality Certificate
Appendix A (Informative) Designation Comparison Table for Stainless Steels of All Countries
Appendix B (Informative) Characteristic and Purpose of Stainless Steel
Appendix C (Informative) Heat Treatment System of Stainless Steel