| Autor: |
Zikeev, V. N., Kornyushchenkova, Yu. V., Kotel'nikov, Yu. A. |
| Zdroj: |
Metal Science and Heat Treatment; February 1997, Vol. 39 Issue: 2 p45-48, 4p |
| Abstrakt: |
Apparatuses for complex preparation and processing of hydrogen sulfide-containing natural gas are commonly produced from carbon steels of the 20Yuch type. However, the strength level of these steels is low (σ0.2≥240 N/mm2). Low-alloy weldable steel 09G2S has a higher strength, namely, σ0.2≥300 N/mm2for rolled stock up to 32 mm thick and σ0.2≥275 N/mm2for rolled stock up to 80 mm thick. At the same time, steel 09G2S has a low cold strength (the semibrittleness temperatureT50≥−30°C) and a low resistance to hydrogen sulfide cracking (the threshold stress σth=0.6σ0.2). The present paper is devoted to the effect of the composition and structure on the set of properties of new low-alloy plate steel 09GSNBTs, which possesses elevated strength and is resistant to hydrogen sulfide cracking. |
| Databáze: |
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