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GB/T 4237-2015 English PDF (GBT4237-2015)

GB/T 4237-2015 English PDF (GBT4237-2015)

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GB/T 4237-2015: Hot rolled stainless steel plate, sheet and strip

This Standard specifies the classification, code, order content, dimension, shape, weight and allowable deviation, technical requirements, test methods, inspection rules, packaging, marking and product quality certificates of hot rolled stainless steel plates, sheets and strips.
GB/T 4237-2015
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 77.140.50
H 46
Replacing GB/T 4237-2007
Hot rolled stainless steel plate, sheet and strip
ISSUED ON. SEPTEMBER 11, 2015
IMPLEMENTED ON. JUNE 1, 2016
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 ... 5
2 Normative references ... 5
3 Classification and code ... 8
4 Order content ... 8
5 Dimension, shape, weight and allowable deviation ... 9
6 Technical requirements ... 15
7 Test methods ... 33
8 Inspection rules ... 36
9 Packing, marking and quality certificate ... 37
Annex A (informative) Comparing table of stainless steel grades in different countries ... 38
Annex B (informative) Characteristics and uses of stainless steels ... 43 Annex C (informative) Heat treatment system of stainless steels ... 57
Foreword
This Standard is drafted according to the rules given in GB/T 1.1-2009. This Standard replaces GB/T 4237-2007 ?€?Hot rolled stainless steel plate, sheet and strip?€?. Compared with the GB/T 4237-2007, the main technical changes are as follows. - ADD ?€?edge state?€? in the order content;
- ADD the width range and its corresponding dimension precision of steel plates; - ADD the thickness range and its corresponding dimension precision of wide steel coils;
- MODIFY the allowable deviation of thick steel plates and wide steel strips?€? width; - ADD 23 steel grades and related technical requirements;
- ADJUST the chemical composition of 5 steel grades;
- REVISE the mechanical properties of 13 steel grades;
- CHANGE the original steel grade, 022Cr18NbTi, TO 022Cr18Nb;
- ADD the grain size requirement for 4 steel grades of in the special requirements; - MODIFY the reinspection and determination rules;
- ADD the mechanical properties and rules of rounding off for chemical composition test results;
- ADD the informative Annex A ?€?Comparing table of stainless steel and heat- resistant steel grades in different countries?€?.
This Standard is proposed by the China Iron and Steel Association.
The Standard shall be under the jurisdiction of the National Technical Committee on Steel of the Standardization Administration of China (SAC/TC 183).
Main drafting organizations of this Standard. Shanxi Taigang Stainless Steel Co., Ltd., Baosteel Stainless Steel Co., Ltd., Metallurgical Industry Information Standards Research Institute, Sichuan Southwest Stainless Steel Co., Ltd., Shandong Taishan Iron and Steel Group Co., Ltd.
Main drafters of this Standard. Liu Hongtao, Wu Qiang, Xu Zhongjie, Dong Li, Wang Jun, Chen Peidun, Zhang Jiansheng, Wang Xiaohu, Zhang Li, Li Liuyi, Li Xiongfei, Luan Yan, Zhang Weixu.
Hot rolled stainless steel plate, sheet and strip
1 Scope
This Standard specifies the classification, code, order content, dimension, shape, weight and allowable deviation, technical requirements, test methods, inspection rules, packaging, marking and product quality certificates of hot rolled stainless steel plates, sheets and strips.
This Standard applies to corrosion-resistant hot-rolled thick stainless steel plates (hereinafter referred to as thick steel plates), corrosion-resistant hot-rolled wide stainless steel strips (hereinafter referred to as wide steel strips) and their roll-cutting specified-length steel plates (hereinafter referred to as roll-cutting steel plates) and slitting wide steel strips, also applies to corrosion-resistant hot-rolled narrow stainless steel strips (hereinafter referred to as narrow steel strips) and their roll-cutting specified-length steel strips (hereinafter referred to as roll-cutting steel strips). 2 Normative references
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this document. For undated references, the latest edition (including all amendments) applies 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 223.4 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 aluminium content
GB/T 223.9 Iron steel and alloy - Determination of aluminium 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 ??- 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 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 and expression and judgement 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 preparatio...

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