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GB/T 24587-2009 English PDF (GBT24587-2009)

GB/T 24587-2009 English PDF (GBT24587-2009)

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GB/T 24587-2009: Hot-rolled wire rods for prestressing steel bars of concrete

This Standard specifies the content of order, dimension, form, weight and permissible deviations, technical requirements, test methods, inspection rules, package, marking and quality certificates etc. for hot-rolled wire rods for prestressing steel bars of concrete.
GB/T 24587-2009
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 77.140.60
H 44
Hot-rolled wire rods for
prestressing steel bars of concrete
ISSUED ON. OCTOBER 30, 2009
IMPLEMENTED ON. MAY 01, 2010
Issued by.
General Administration of Quality Supervision, Inspection
and Quarantine of the PEOPLE Republic of China;
Standardization Administration of the PEOPLE Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Content of Order ... 6
4 Dimension, Form, Weight and Permissible Deviations ... 6
5 Technical Requirements ... 7
6 Test Methods ... 8
7 Inspection Rules ... 8
8 Package, Marking and Quality Certificate ... 9
Foreword
This Standard was proposed by China Iron and Steel Association.
This Standard shall be under the jurisdiction of Technical Committee on Steel of Standardization Committee of China.
Drafting organizations of this Standard. Tianjin Iron and Steel Co., Ltd., Tianjin Yinlong Prestressing Steel Products Group Co., Ltd., Tangshan Iron and Steel Co., Ltd., Xingtai Iron and Steel Corp., Ltd., China Metallurgical Information and Standardization Institute. Main drafters of this Standard. Wu Bo, Gong Wenxu, Zhao Yuxiu, Yu Jingqi, Xie Zhiqin, Deng Cuiqing, Sun Xiaoling , Han Weiqi, Wang Lingjun, Dai Shifeng.
Hot-rolled wire rods for
prestressing steel bars of concrete
1 Scope
This Standard specifies the content of order, dimension, form, weight and permissible deviations, technical requirements, test methods, inspection rules, package, marking and quality certificates etc. for hot-rolled wire rods for prestressing steel bars of concrete. This Standard applies to hot-rolled wire rods for prestressing steel bars of concrete. 2 Normative references
The articles contained in the following documents have become part of this Standard when they are quoted herein. For the dated documents so quoted, all the modifications (excluding corrections) or revisions made thereafter shall not be applicable to this Standard. For the undated documents so quoted, the latest editions shall be applicable to this Standard.
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 223.11 Iron steel and alloy - Determination of chromium content - Visual titration or potentiometric titration method (GB/T 223.11-2008, ISO 4937.1986, MOD) GB/T 223.12 Methods for chemical analysis of iron, steel and alloy - The sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium 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 223.23-2008, ISO 4939.1984, MOD)
GB 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 223.54 Methods for chemical analysis of iron, steel and alloy - The flame atomic absorption spectrophotometric method for the determination of nickel 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 223.59 Iron steel and alloy - Determination of phosphorus content - Bismuth phosphomolybdate blue spectrophotometric method and antimony phosphomolybdate blue spectrophotometric method
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 223.62 Methods for chemical analysis of iron, steel and alloy - The butyl acetate extraction photometric method for the determination of phosphorus content GB/T 223.63 Methods for chemical analysis of iron, steel and alloy - The sodium (potassium) periodate photometric method for the determination of manganese content GB/T 223.64 Iron steel and alloyed - Determination of manganese content - Flame atomic absorption spectrometric method
GB/T 223.67 Iron steel and alloy - Determination of sulfur content -Methylene blue spectrophotometric method (GB/T 223.67-2008, ISO 10701.1994, IDT)
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 223.69-2008, JISG 1211.1986, MOD)
GB/T 223.71 Methods for chemical analysis of iron, steel and alloy - The gravimetric method after combustion in the pipe furnace for the determination of carbon content GB 224 Determination of depth of decarburization of steel (GB 224-1987, eqv ISO 3887-1976)
GB/T 228 Metallic materials - Tensile testing at ambient temperature (GB/T 228-2002, eqv ISO 6892.1998)
GB/T 2101 General requirements of acceptance, packaging, marking, and certification for section steel
GB/T 4336 Standard test method for spark discharge atomic emission spectrometric analysis of carbon and low-alloy steel (routine method)
GB/T 10561-2005 Steel-Determination of content of nonmetallic inclusions - Micrographic method using standards diagrams (GB/T 10561-2005, ISO 4967.1998, IDT)
GB/T 13298 Metal - Inspection method of microstructure
GB/T 14981 Dimensions, shape, mass and tolerances for hot-rolled wire rods GB/T 20066 Steel and iron-Sampling and preparation of samples for the determination of chemical composition (GB/T 20066-2006, ISO 14284.1996, IDT)
3 Content of Order
Contracts or orders signed in accordance with this Standard shall include. a) Number of standard;
b) Name of product;
c) Grades;
d) Specifications;
e) Grade of dimension accuracy;
f) Weight (or quantity);
g) Condition of delivery;
h) Other special requirements.
4 Dimension, Form, Weight and Permissible Deviations
4.1 The dimension, form, weight and permissible deviations of wire rods shall comply with GB/T 14981.
4.2 Any special requirements for the dimension, form and weight of wire rods shall be mutually agreed upon between the seller and the buyer, and indicated in the contract.

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