Failure Case Study Series Part Two: Failure Analysis of Roller Guides in a Wire Rod Rolling Mill
Abstract
The paper aims to present the root cause of failure of roller guides from the wire rod and coil rolling mill during normal operation. A comprehensive failure investigation was conducted following standard metallurgical procedures, including visual inspection, hardness testing, chemical analysis, optical microscopy, stereomicroscopy, scanning electron microscopy (SEM–EDS) characterization, and inclusion rating according to ASTM E45. The investigation concludes that the primary root cause of failure was the use of D3 tool steel, which is unsuitable for components subjected to severe thermal cycling, resulting in progressive thermal fatigue damage and eventual catastrophic fracture. Moreover, the election of D2 or other Mo-V alloyed hot‑work tool steels, combined with appropriate surface hardening, is recommended to enhance service life under rolling mill operating conditions.
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References
[2]. ***, Analysis of common failure causes and solutions for rolling guides, LMM Group, 2022.
[3]. ***, Failure Analysis and Solutions of Rolling Mill Gearbox Bearings in Special Steel High Speed Wire Rod Mill, ZHY Gear, 2025.
[4]. Pandey J. C., Failure of Tungsten Carbide Rolls from a Wire and Rod Mill, J. Fail. Anal. Prev., 2007.
[5]. Farrugia D., Investigations into Roll Thermal Fatigue in Hot Rolling, Int. J. Mater. Form, 2008.
[6]. ***, ASTM A681 24: Standard Specification for Tool Steels Alloy, ASTM International, 2024.
[7]. ***, AISI D2 vs D3 Cold Work Tool Steel – ASTM A681, Otai Special Steel, 2026.
[8]. ***, A681 Type D3 (UNS T30403), H2ABC Materials DB, 2024.
[9]. Ghio E., Effects of Multiple Quenching Treatments on O2, D2, and D3 Tool Steels, JMMP, 2025.
[10]. Dadou A., 15 Minutes Heat Treatment Effect on AISI D3 Tool Steel, J. Mater. Eng. Perf, 2026.
[11]. Reddy S., Sliding Wear Analysis of Thermal Sprayed Mo Coating on D2 Steel, JAER, 2023.
[12]. Mourad A.-H. I., Fatigue Life and Crack Growth Prediction of Metallic Structures: A Review, Structures, 2025.
[13]. Fayed A. S., Fatigue Crack Growth Correlations under Mixed Mode Loading: A Review, 2025.
[14]. ***, Guide – Roller guide design considerations, HKT International, 2025.
[15]. Arun K., Lubricant Failure Analysis of Roll Neck Bearings of Wire Rod Mill, IJAERS, 2025.
[16]. Okumoto T., Study on Fire Cracks of Slabbing Mill Rolls, ISIJ Overseas, 1980s reprint.
[17]. ***, ASTM A681 Tool Steels Alloy (D series classification), Fushun Special Steel, 2015.
[18]. ***, D3 Tool Steel: Properties and Applications, SteelPro Group, 2024.
[19]. ***, D2 vs D3 vs A2 Tool Steels – Comparative Metallurgy, AoboSteel, 2025.
[20]. ***, Tool Steel Resource Guide (A2, D2, H13…), KeyMetals, 2025.
[21]. Gurau L., Failure Case Study Series Part One: Analysis of Oxygen Compressor Shaft Breakage, The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, vol. 49, no. 1, p. 11-18, 2026.
