GB/T 24588-2019 English PDF (GBT24588-2019)

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GB/T 24588-2019: Stainless steel spring wires
GB/T 24588-2019
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.140.65
H 49
Replacing GB/T 24588-2009
Stainless steel spring wires
ISSUED ON: JUNE 04, 2019
IMPLEMENTED ON: MAY 01, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 5 
2 Normative references ... 5 
3 Terms and definitions ... 7 
4 Order content ... 7 
5 Designation and group ... 8 
6 Size, shape, weight and allowable deviation ... 8 
7 Technical requirements ... 9 
8 Test methods ... 15 
9 Inspection rules ... 15 
10 Packaging, marks and quality certificate ... 17 
Annex A (informative) Comparison between designations of this Standard and
designations home and abroad ... 18 
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard replaces GB/T 24588-2009 “Stainless steel wires for spring”.
Compared with GB/T 24588-2009, main technical changes are as follows:
- tightened requirements for allowable diameter deviation of steel wires (see
6.2 of this Edition, 6.2 of Edition 2009);
- added 4 designations: 07Cr19Ni10, 06Cr18Ni11Ti, 12Cr18Mn12Ni2N and
04Cr12Ni8Cu2TiNb as well as relevant requirements (see Table 1, Table
4, Table 5, Table 6 and Table 7 of this Edition, Table 1, Table 4 and Table
5 of Edition 2009);
- modified representation modes for some designations: modified 06Cr19Ni9
to 06Cr19Ni10, 06Cr19Ni9N to 06Cr19Ni10N, 12Cr17Mn8Ni3Cu3N to
12Cr16Mn8Ni3Cu3N (see Table 1, Table 4, Table 5 of this Edition, Table
1, Table 4, Table 5 of Edition 2009);
- tightened nitrogen content of 12Cr18Mn9Ni5N and 12Cr16Mn8Ni3Cu3N,
from 0.05%~0.30% to 0.05%~0.25% (see Table 4 of this Edition, Table 4
of Edition 2009);
- expanded size range of steel wire twist test; modified nominal diameter from
0.50mm~4.00mm to 0.50mm~6.00mm (see 7.5.1 of this Edition, 7.5.1 of
Edition 2009);
- modified requirements for surface state of steel wires (see 7.2.2 of this
Edition, 7.2.2 of Edition 2009);
- added technical requirements and methods for intergranular corrosion test
of austenitic stainless steel (see 7.7 and Table 8 of this Edition);
- added comparison between different editions of designations of this
Standard (see Annex A of this Edition).
This Standard was proposed by China Iron and Steel Association.
This Standard shall be under the jurisdiction of National Technical Committee
on Steels of Standardization Administration of China (SAC/TC 183).
The drafting organizations of this Standard: Northeast Special Steel Group Co.,
Ltd., Jiangyin Falsheng Shengsheng Stainless Steel Products Co., Ltd.,
Jiangsu Shenyuan Group Co., Ltd., Zhejiang Qingshan Iron and Steel Co., Ltd.,
Zhejiang Tenglong Fine Line Co., Ltd., Jiangsu Xinghuo Special Steel Co., Ltd.,
Stainless steel spring wires
1 Scope
This Standard specifies terms and definitions, order content, designations and
groups, size, shape, weight and allowable deviation, technical requirements,
test methods, inspection rules, packaging, marks and quality certificate for
stainless steel spring wires.
This Standard is applicable to Austenitic and precipitation-hardening stainless-
steel spring wires that are used to make springs (hereinafter referred to as steel
wires).
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 referenced document (including any
amendments) applies.
GB/T 222, Method of sampling steel for determination of chemical
composition and permissible variations for product analysis
GB/T 223.4, Alloyed steel - Determination of manganese content -
Potentiometric or visual titration method
GB/T 223.5, Methods for chemical analysis of iron, steel and alloy - The
reduced molybdosilicate spectrophotometric method for the determination of
acid-soluble silicon content
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 223.11, Iron, Steel and Alloy - Determination of Chromium Content -
Visual Titration or Potentiometric Titration Method
GB/T 223.17, Methods for chemical analysis of iron, steel and alloy - The
diantipyrylmethane 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 223.23, 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-
benzoinoxime 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 Sulphochlorophenol S Spectrophotometric Method
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 223.64, Iron, Steel and Alloy - Determination of Manganese Content -
Flame Atomic Absorption Spectrometric Method
GB/T 223.85, Steel and iron - Determination of sulfur content - Infrared
absorption method after combustion in an induction furnace
GB/T 223.86, Steel and iron - Determination of total carbon content - Infrared
absorption method after combustion in an induction furnace
GB/T 228.1, Metallic materials - Tensile testing - Part 1: Method of test at
room temperature
GB/T 238, Metallic materials - Wire - Reverse bend test
GB/T 239.1, Metallic materials - Wire - Part 1: Simple torsion test
GB/T 342-2017, Dimension, shape, mass and tolerance of cold-drawn round
square and hexagonal steel wires
GB/T 2103-2008, General requirements for acceptance, packing, marking
and quality certification of steel wire
GB/T 2976, Metallic materials - Wire - Wrapping test
GB/T 4240, Stainless steel wires
GB/T 4334-2008, Corrosion of metals and alloys - Test methods for
intergranular corrosion of stainless steels
GB/T 4356, Stainless steel wire rods
GB/T 11170, Stainless steel - Determination of multi-element contents -
Spark discharge atomic emission spectrometric method (Routine method)
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
GB/T 20878, Stainless and heat-resisting steels - Designation and chemical
composition
3 Terms and definit...