特钢技术
特鋼技術
특강기술
Special Steel Technology
2015年
3期
32-35
,共4页
S30815%奥氏体%耐热钢%铈的控制
S30815%奧氏體%耐熱鋼%鈰的控製
S30815%오씨체%내열강%시적공제
S30815%Austenitic%Heat-resistant steel%Control of Se
在试制S30815(1Cr21Ni11Si2NCe)含铈奥氏体耐热钢管时，技术难度大。由于该钢含铈且有上、下限控制，而铈作为主要活泼元素之一，冶炼时不能及时分析，收得率波动大(5%~40%)，易产生成分废品。试制结果表明，化学成分控制、室温性能等质量指标满足用户技术要求，工艺成熟。
在試製S30815(1Cr21Ni11Si2NCe)含鈰奧氏體耐熱鋼管時，技術難度大。由于該鋼含鈰且有上、下限控製，而鈰作為主要活潑元素之一，冶煉時不能及時分析，收得率波動大(5%~40%)，易產生成分廢品。試製結果錶明，化學成分控製、室溫性能等質量指標滿足用戶技術要求，工藝成熟。
재시제S30815(1Cr21Ni11Si2NCe)함시오씨체내열강관시，기술난도대。유우해강함시차유상、하한공제，이시작위주요활발원소지일，야련시불능급시분석，수득솔파동대(5%~40%)，역산생성분폐품。시제결과표명，화학성분공제、실온성능등질량지표만족용호기술요구，공예성숙。
From viewpoint of technical process, it is difficult to produce austenitic heat-resistant steel S30815 (1Cr21Ni11Si2NCe) in trial scale. The steel contains Se, and has upper and lower limit for it. As an active element, Se can not be analyzed in time and its yield rate fluctuate greatly(5%-40%), which easily result in unqualified products due to failing to meet the composition requirement. The results of trial production showed that the chemical composi?tion and room-temperature property of the said steel could meet the technical requirements of the customer.
