GB/T 13314-2025 Forged steel work rolls for cold rolling—General technical specifications English, Anglais, Englisch, Inglés, えいご
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ICS 77.180 CCS H 94
People's Republic of China National Standard
GB/T 13314-2025 Replacing GB/T 13314-2008
Forged Steel Work Rolls for Cold Rolling - General Technical Specifications
Issued on August 29, 2025; Implemented on March 1, 2026
Issued by State Administration for Market Regulation Standardization Administration of China
Contents
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Technical Requirements
5 Test Methods
6 Inspection Rules
7 Marking, Packaging, Transportation and Storage
Appendix A (Normative) Ultrasonic Testing Method for Forged Steel Work Rolls for Cold Rolling
Forged Steel Work Rolls for Cold Rolling - General Technical Specifications
1 Scope
This document specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of forged alloy steel work rolls for cold rolling of metals.
This document applies to forged alloy steel work rolls and intermediate rolls (hereinafter referred to as cold rolling rolls) for cold rolling machines used for metal plates (strips), etc. Cold rolling rolls manufactured by other methods may also reference this document.
2 Normative References
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, subsequent amendments (excluding勘误表) or revisions to these documents do not apply. For undated references, the latest edition of the document (including any amendments) applies.
GB/T 223 (all parts) Methods for chemical analysis of iron and steel
GB/T 226 Low-magnification examination and defect rating of steels
GB/T 1184-1996 Geometrical tolerancing - Tolerances of form and orientation
GB/T 1299 Tool steels
GB/T 1804-2000 General tolerances - Tolerances for linear and angular dimensions
GB/T 1979 Evaluation of low-magnification structure defects in structural steels - Acid etching method and ultrasonic testing method
GB/T 4879-2016 Rust preventive packaging
GB/T 9445 Non-destructive testing - Qualification and certification of personnel
GB/T 10561-2023 Determination of non-metallic inclusion content in steels - Standard chart rating method by microscopic examination
GB/T 13313 Rockwell and Leeb hardness testing methods for rolls
GB/T 15546 Terminology for metallurgical rolls
GB/T 15547 Forged steel rolls for cold rolling
GB/T 18254-2016 High carbon chromium bearing steels
GB/T 23904 Non-destructive testing - Surface wave ultrasonic testing method
GB/T 27664.1 Non-destructive testing - Performance and verification of ultrasonic testing equipment - Part 1: Instruments
GB/T 27664.2 Non-destructive testing - Performance and verification of ultrasonic testing equipment - Part 2: Probes
3 Terms and Definitions
Terms and definitions established in GB/T 15546 apply to this document.
4 Technical Requirements
4.1 General Requirements
Cold rolling rolls shall comply with this document and the agreed drawings, agreements, etc., between the supplier and the purchaser.
4.2 Designation and Chemical Composition
4.2.1 The designations and chemical compositions of steels for cold rolling rolls shall be as specified in Table 1. Other designations or chemical compositions may also be agreed upon between the supplier and the purchaser. The permissible deviations for chemical composition analysis of roll blanks or finished products shall comply with GB/T 15547.
4.2.2 The impurities Pb, Sn, As, Sb, and Bi in the chemical composition shall be ≤0.02%.
4.3 Smelting Methods
4.3.1 The smelting method for steels for cold rolling rolls shall preferably be induction furnace or electric furnace (converter) + ladle refining + vacuum degassing + electroslag remelting. Other methods may also be agreed upon between the supplier and the purchaser. The specific smelting method shall be indicated in the contract or technical agreement.
4.3.2 Cold rolling rolls shall be forged from electroslag remelted ingots, with a forging ratio of ≥3 for the roll body.
Table 1 Designation and Chemical Composition of Steels for Cold Rolling Rolls
