Journal Published Online: 26 July 2024
Volume 52, Issue 5

High-Temperature Tensile Behavior of Structural Steel Grades with Varying Manganese Contents

CODEN: JTEVAB

Abstract

Three low-carbon (∼0.1 wt.% carbon) grades of structural steel with varying manganese content (0.75–1.5 wt.%) with ferrite-pearlite microstructure were used for the study. The 1.5 % manganese steel is a microalloyed steel with vanadium, niobium, and titanium content, which is strengthened by interphase precipitates. The steels were tensile tested at room temperature and in the temperature range between 200°C–700°C, at 100°C intervals. The elevated temperature flow strengths of the steels studied show higher strength values for the higher manganese steel. It was found that the manganese enhanced the strength at all ranges of test temperatures. The retention factor of the conventional structural steels was less than or equal to 0.50 against 0.66 for a fire-resistant steel grade. The study shows that the addition of elements such as chromium, molybdenum is required to achieve a higher retention factor to fulfill the requirement of fire resistance characteristics.

Author Information

Mohapatra, J. N.
Research & Development and Scientific Services, JSW Steel Limited, Toranagallu, Bellary, Karnataka, India
Dabbiru, Satish Kumar
Research & Development and Scientific Services, JSW Steel Limited, Toranagallu, Bellary, Karnataka, India
Balachandran, G.
Research & Development and Scientific Services, JSW Steel Limited, Toranagallu, Bellary, Karnataka, India
Pages: 15
Price: $25.00
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Details
Stock #: JTE20230502
ISSN: 0090-3973
DOI: 10.1520/JTE20230502