GB/T 4356-2025 PDF English
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GB/T 4356: Historical versions
| Standard ID | USD | BUY PDF | Delivery | Standard Title (Description) | Status |
| GB/T 4356-2025 | 290 | Add to Cart | Auto, 9 seconds. | Stainless steel wire rods | Valid |
| GB/T 4356-2016 | 225 | Add to Cart | Auto, 9 seconds. | Stainless steel wire rods | Valid |
| GB/T 4356-2002 | 519 | Add to Cart | 3 days | Stainless steel wire rods | Obsolete |
| GB/T 4356-1984 | 199 | Add to Cart | 2 days | Stainless steel wire rods | Obsolete |
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GB/T 4356-2025: Stainless steel wire rods
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT4356-2025GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.140.60 CCS H 44 Replacing GB/T 4356-2016, GB/T 39033-2020 Stainless Steel Wire Rods Issued on: AUGUST 29, 2025 Implemented on: MARCH 1, 2026 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... 6 4 Order Contents... 6 5 Manufacturing Process... 6 6 Technical Requirements... 7 7 Test Methods... 19 8 Inspection Rules... 20 9 Packaging, Marking and Quality Certificate... 21 Appendix A (Informative) Main Characteristics and Uses of Stainless Steel... 22 Appendix B (Informative) Recommended Heat Treatment Regimes for Austenitic- Ferritic Stainless Steel Grades... 31Foreword
This document was drafted in accordance with the rules provided in GB/T 1.1-2020 Directives for standardization - Part 1.Rules for the structure and drafting of standardizing documents. This document serves as a replacement of GB/T 4356-2016 Stainless steel wire rods and GB/T 39033-2020 Austenitic-ferritic duplex stainless steel wire rods. This document is primarily based on GB/T 4356-2016 and incorporates content from GB/T 39033-2020.In comparison with GB/T 4356-2016 and GB/T 39033-2020, apart from structural adjustments and editorial modifications, the main technical changes are as follows. a) The applicable scope of specifications has been changed (see Chapter 1; Chapter 1 of GB/T 4356-2016); b) 29 new grades have been added, including 20 austenitic grades, 3 austenitic-ferritic grades, 3 ferritic grades, 1 martensitic grade, and 2 precipitation-hardening grades (see Tables 2 to 6; Tables 1 to 5 of GB/T 4356-2016); c) The old grade designation method has been removed (see Tables 2 to 6; Tables 1 to 5 of GB/T 4356-2016); d) The unified numerical codes for some grades have been changed (see Tables 2 to 5; Tables 1 to 4 of GB/T 4356-2016); e) The naming method for some grades has been changed (see Tables 2 to 4; Tables 1 to 3 of GB/T 4356-2016; Table 2 of GB/T 39033-2020); f) The chemical composition of some grades has been changed (see Tables 3 to 5; Tables 2 to 4 of GB/T 4356-2016); g) The grade 06Cr19Ni9Cu2 has been removed (see Table 2; Table 1 of GB/T 4356- 2016); h) The PREN calculation formula and PREN value for grade 022Cr25Ni7Mo4WCuN have been changed (see Table 3; Table 2 of GB/T 39033-2020); i) The delivery condition has been changed (see Chapter 5; 5.2 of GB/T 4356-2016); j) The recommended heat treatment process for grade 14Cr17Ni2 has been changed (see Table 7; Table 7 of GB/T 4356-2016); k) The mechanical property requirements for newly added grades have been changed (see Table 8; Table 8 of GB/T 4356-2016); l) The surface quality requirements for wire rods have been changed (see 6.4.1, 6.4.2 and Table 9; 5.5 and Table 9 of GB/T 4356-2016); Stainless Steel Wire Rods1 Scope
This document specifies the order contents, manufacturing process, technical requirements, test methods, inspection rules, packaging, marking and quality certificate for stainless steel wire rods. This document is applicable to stainless steel round wire rods with a nominal diameter of 4.5 mm to 45.0 mm. This document is not applicable to stainless steel wire rods for welding purposes.2 Normative References
The contents of the following documents constitute indispensable clauses of this document through normative references in the text. In terms of references with a specified date, only versions with a specified date are applicable to this document. In terms of references without a specified date, the latest version (including all the modifications) is applicable to this document. GB/T 222 Permissible tolerances for chemical composition of steel products GB/T 223 (All parts) Methods for chemical analysis of iron, steel and alloy GB/T 226 Test method for macrostructure and defect of steel by etching GB/T 228.1 Metallic materials - Tensile testing - Part 1.Method of test at room temperature GB/T 231.1 Metallic materials - Brinell hardness test - Part 1.Test method GB/T 1979 Standard diagrams for macrostructure and defect of structural steels GB/T 2101 General requirement of acceptance, packaging, marking and certification for section steel GB/T 6394 Determination of estimating the average grain size of metal GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 10561 Determination of content of nonmetallic inclusions in steel - Micrographic method using standard diagrams GB/T 11170 Stainless steel - Determination of multi-element contents - Spark discharge atomic emission spectrometric method (Routine method) GB/T 13305 Method for determining content of the α-phase in stainless steels GB/T 14981-2009 Dimension, shape, mass and tolerance for hot-rolled round wire rod 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 Stainless steels - Designation and chemical composition GB/T 36164 High alloy steel - Determination of multi-element contents - X-ray fluorescence spectrometry (routine method)3 Terms and Definitions
This document contains no terms or definitions that require clarification.4 Order Contents
Contracts or orders placed according to this document shall include the following. a) Number of this document; b) Product name; c) Grade or unified numerical code; d) Weight (quantity) of delivery; e) Dimensions and shape; f) Delivery condition; g) Mechanical properties (unless otherwise specified, Group 2 shall apply); h) Special requirements.5 Manufacturing Process
The delivery condition of the wire rods shall comply with the provisions of Table 1.Other delivery conditions may be used upon agreement between the supply and demand sides and specified in the contract.6 Technical Requirements
6.1 Grades and Chemical Composition 6.1.1 The steel grades and chemical composition (melting analysis) shall comply with the provisions of Tables 2 to 6.According to the demander’s requirements and through negotiation between both parties, wire rods with other grades and chemical composition requirements may also be supplied. The main uses of the grades specified in this document are shown in Appendix A, and the comparison between the grades in this document and some foreign grades can be found in GB/T 20878. 6.1.2 The permissible deviations in the chemical composition of finished wire rods shall comply with the provisions of GB/T 222.The manufacturer shall only perform chemical composition analysis of finished products and report the analysis results of finished products in the quality certificate when required by the demander and specified in the contract. 6.2 Hardness For ferritic and martensitic stainless steel wire rods delivered in the annealed condition, the hardness shall comply with the provisions of Table 7, and the recommended annealing process is shown in Table 7. 6.3 Mechanical Properties The mechanical properties of solution-annealed austenitic and austenitic-ferritic stainless steel wire rods with a nominal diameter not exceeding 20 mm shall comply with the provisions of Table 8.Unless otherwise specified, Group 2 provisions shall apply. For grades not listed in Table 8, the mechanical properties of solution-annealed products shall be negotiated between ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
