Properties and weldability of high-strength low-alloy S1100QL steel
aandrej.skumavc@acroni.si
- DOI: https://doi.org/10.5937/zzk2104168S
- Article Type: Professional paper
- Language: English/Serbian
- Received: September 2021
- Accepted: --
Abstract
The high-strength low-alloy steel S1100QL is used in the most demanding mechanical engineering applications. Typical structures made of this steel are hydraulically extendable pallet cranes in mobile lifting machinery, which require a high strength-to-weight ratio. The high yield strength and toughness of S1100QL steel are achieved through proper chemical composition, hot rolling, and heat treatment. Those factors also have a strong effect on the weldability of this steel: the welded joint should have the properties required by EN ISO 15614-1. In this paper, the main properties of the S1100QL steel are shown. In addition, WPQR was performed on a 15 mm thick plate using the GMAW process. Analyzed properties such as tensile test, impact toughness, hardness, and microstructure are compared to the requirements of the international standards from the field of arc welding.
Keywords
high-strength low-alloy S1100QL steel, weldability, EN ISO 156141, welding procedure qualification record, strength-to-weight ratio
Acknowledgements
The paper was originally published in the Proceedings of the 31st Conference with International Participation Welding 2020, held in Kladovo, Serbia, from October 13 to 16, 2021.
References
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