GB/T 24238-2025Hot-rolled steel wire rod for prestressed steel wire and strand (English PDF)
预应力钢丝及钢绞线用热轧盘条
Open the GB/T 24238-2025 preview as PDF
This is a limited preview
Buy now to download the full PDF (15 pages)
Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
March 28, 2025
Implementation date
October 1, 2025
Scope
GB/T 24238-2025 is the English-translated version of 预应力钢丝及钢绞线用热轧盘条.
GB/T 24238-2025 is the Chinese national standard covering the rod that is drawn down into prestressing wire and strand — the designation and the chemical composition, the tensile strength and reduction of area measured after ageing, the depth of the decarburised layer, the sorbite content that the drawing depends on, the surface quality with no shrinkage cavity, delamination or inclusion left at the cut ends, the dimensions, and the batch inspection rules. A prestressing strand carries load near its strength for the life of the structure, and the rod it was drawn from decides whether it gets there. It replaces GB/T 24238-2017, under the China Iron and Steel Association. In force from 1 October 2025. Issued on 28 March 2025, it has been in force since 1 October 2025, replacing GB/T 24238-2017.
Document preview — GB/T 24238-2025
National Standard of the People's Republic of China
- ICS
- 77.140.60
- Classification
- H 44
- Replacing
- GB/T 24238-2017
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword3
- 1 Scope5
- 2 Normative References5
- 3 Terms and Definitions7
- 4 Designation Representation Method7
- 5 Ordering Content7
- 6 Manufacturing Process8
- 7 Technical Requirements8
- 8 Test Methods12
- 9 Inspection Rules12
- 10 Packaging, Marking and Quality Certificate13
- Appendix A (informative) Recommended Aging Period for Wire Rod14
1 Scope
This document specifies the designation representation method, ordering content, manufacturing process, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of hot-rolled wire rod for prestressed steel wire and strand.
This document applies to hot-rolled wire rod for prestressed steel wire and strand (hereinafter referred to as the “wire rod”).
2 Normative References
GB/T 222
GB/T 223.5
GB/T 223.12
GB/T 223.14
GB/T 223.19
GB/T 223.23
GB/T 223.37
GB/T 223.59
GB/T 223.60
GB/T 223.63
GB/T 223.82
GB/T 223.85
GB/T 223.86
3 Terms and Definitions
This document does not have terms or definitions that need to be defined.
4 Designation Representation Method
The designation of steel consists of the first letter of the Chinese pinyin representing “stress” (capitalized), the average carbon content and the manganese content or the silicon element symbol.
5 Ordering Content
The contract or order for goods placed under this document shall include the following contents.
6 Manufacturing Process
6.1 Smelting Method
Steel is smelted in a converter or electric furnace, and shall be refined outside the furnace.
7 Technical Requirements
7.1 Designations and Chemical Composition
7.1.1 The designations and chemical composition (melting analysis) of steel for the wire rod shall comply with the provisions of Table 1.
7.2 Mechanical Properties
7.2.1 The tensile strength Rm and reduction of cross-sectional area Z of wire rod after aging shall comply with the provisions of Table 2 and Table 3.The recommended aging period for wire rod is shown in Appendix A. After negotiation between the supply-side and the demand- side, and statement in the contract, adjustments can be made based on the mechanical properties indicators in Table 2 and Table 3.
7.3 Decarburization Layer
The wire rod shall be inspected for the depth of decarburization layer. The depth of the total decarburization layer (ferrite + transition layer) on one side of the wire rod shall not be greater than 1.0%D (D represents the nominal diameter of the wire rod).
7.4 Microstructure
7.4.1 The metallographic structure of the wire rod shall be mainly sorbite, and the sorbite content shall comply with the provisions of Table 4.
7.5 Surface Quality
7.5.1 The harmful defective parts at the head and tail of the wire rod shall be cut off, and its cross section shall not have shrinkage holes, delamination or inclusions.
7.6 Dimensions, Shape and Weight
7.7 Special Requirements
8 Test Methods
8.1 The inspection items, sampling methods and test methods for each batch of wire rod shall comply with the provisions of Table 7.
8.2 Chemical analysis methods shall comply with the general methods, such as. GB/T 4336, GB/T 20213 and GB/T 20214, or GB/T 223.5, GB/T 223.12, GB/T 223.14, GB/T 223.19, GB/T 223.23, GB/T 223.37, GB/T 223.59, GB/T 223.60, GB/T 223.63, GB/T 223.82, GB/T 223.85 and GB/T 223.86.
9 Inspection Rules
9.1 Inspection and Acceptance
The inspection and acceptance of the wire rod shall be carried out by the supply-side’s technical supervision department. The supply-side shall ensure that the wire rod delivered complies with the provisions of this document, and the demand-side has the right to inspect and accept in accordance with the provisions of this document.
9.2 Batch Rules
The wire rods shall be accepted in batches. Each batch consists of wire rods of the same designation, same heat number, same specifications and same delivery status.
9.4 Re-inspection and Determination
The re-inspection and determination of the wire rod shall be carried out in accordance with the provisions of GB/T 2101.
10 Packaging, Marking and Quality Certificate
10.1 The packaging and marking of the wire rod shall be in accordance with the contract requirements. When the demand-side does not specify them, they shall be determined by the supply-side.
10.2 The quality certificate of the wire rod shall comply with the provisions of GB/T 2101.
Appendix A Appendix A
(informative) Recommended Aging Period for Wire Rod The recommended aging period for the wire rod is shown in Table A.1. ......
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 222Steels and alloys - Permissible deviations of product analyzed chemical composition
- GB/T 223.23Iron, steel and alloy - Determination of nickel content - The dimethylglyoxime spectrophotometric method
- GB/T 223.59Iron,steel and alloy - Determination of phosphorus content - Bismuth phosphomolybdate blue spectrophotometric method and antimony phosphomolybdate blue spectrophotometric method
- GB/T 223.82Steel and iron—Determination of hydrogen content—Thermal conductivity/infrared method after fusion under inert gas
GB/T 223.5 · GB/T 223.12 · GB/T 223.14 · GB/T 223.19 · GB/T 223.37 · GB/T 223.60 · GB/T 223.63 · GB/T 223.85 · GB/T 223.86
Editions of GB/T 24238
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 24238-2025 | Hot-rolled steel wire rod for prestressed steel wire and strand | current edition | Current |
| GB/T 24238-2017 | Hot-Rolled Wire Rod for Prestressed Steel Wire and Strand | previous edition | In force |
| GB/T 24238-2009 | Hot rolled wire rod for prestressed steel | previous edition | Obsolete |
This page sells the current edition, GB/T 24238-2025. Earlier editions are listed for reference only.
How to Buy GB/T 24238-2025
- 1Add to cart. Click the "Buy GB/T 24238-2025" button on this page. You can add more standards before checkout.
- 2Checkout. Enter your email and billing details. Payment is processed securely by Stripe (cards, Apple Pay, Google Pay supported).
- 3Instant delivery (0–9 sec). Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
- 4Invoice included. A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.
Related Standards
GB/T 222-2025 — Steels and alloys - Permissible deviations of product analyzed chemical composition
GB/T 22200.1-2025 — Reliability of low-voltage apparatus - Part 1: General rules
GB/T 22200.2-2025 — Reliability of low-voltage apparatus - Part 2: Reliability test method for moulded case circuit-breakers
Secure payment via Stripe
Payments accepted
GB/T 24238-2025
$200.00