Development of microalloyed thick plate for high-strength steel structural applications
- CANMET, Ottawa, Ontario (Canada). Metals Technology Labs.
- IPSCO Inc., Regina, Saskatchewan (Canada)
A pilot-scale development of weldable thick plate ({>=}0.75 in. (19 mm)) or high-strength steel structural applications has been conducted at Metals Technology Laboratories CANMET. Based on the findings of a literature survey and mathematical predictions, rolling schedule modifications were applied to develop improved thick-plate microstructure and mechanical properties in a Ti-N-Nb-microalloyed base composition steel. Subsequently, the effects on plate microstructure and mechanical properties of microalloying/alloying additions to the base composition were evaluated. This paper describes the processing and alloying development to achieve as-hot-rolled properties of YS >345 MPa, UTS 485-550 MPa and impact transition {>=}40 J at {minus}40 C in 0.75 in. and 1.5 in. (19 and 38 mm) thick plate.
- OSTI ID:
- 234238
- Report Number(s):
- CONF-951026-; ISBN 0-87170-555-9; TRN: IM9624%%279
- Resource Relation:
- Conference: Materials Week `95, Cleveland, OH (United States), 29 Oct - 2 Nov 1995; Other Information: PBD: 1995; Related Information: Is Part Of High performance structural steels: 1995 conference proceedings; Asfahani, R. [ed.]; PB: 321 p.
- Country of Publication:
- United States
- Language:
- English
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