Evaluation Methods for Banding Structure of SA210C Seamless Medium Carbon Steel Tubes
摘 要
在锅炉厂的产品验收工作中,锅炉和过热器用SA210C无缝中碳钢管带状组织的评定比较重要。但GB/T 13299-1991中对带状组织评级的描述比较模糊,实际应用存在困难,试验结果为界限值时易出现争议。而ASTM E1268-01(2016)的方法尽管计算复杂,但能够定量评定材料的带状程度,在遇到争议时使用该方法可有效减少误判。SA210C为ASME(美国机械工程师学会)钢种,在实际工作中选用ASTM E1268-01(2016)作为检验标准更为准确。但考虑到推广困难,可在日常工作中采用先依据GB/T 13299-1991对带状组织进行评级,遇到争议时再依据ASME E1268-01(2016)进行验证的方法。
Abstract
In the product acceptance work of boiler factories, the evaluation of banding structure of SA210C seamless medium carbon steel tubes used for boilers and superheaters was relatively important. But in GB/T 13299-1991, the description of banding evaluation was ambiguous, and difficulties existed in the practical application. The controversy was prone to occur when the test results were boundary values. But in ASTM E1268-01(2016), although the calculation was complex, the method could evaluate the banding degree of materials quantitatively. It could reduce the misjudgment in the face of controversy. SA210C was one type of ASME (American Society of Mechanical Engineers) steels, thus selecting ASTM E1268-01(2016) as an inspection standard was more accurate in the actual work. But in consideration of difficulties in popularization, GB/T 13299-1991 could be used to evaluate the banding structure in daily work, and ASME E1268-01(2016) could be used to verify the results in face of controversy.
中图分类号 TG115.2 DOI 10.11973/lhjy-wl201705005
所属栏目 试验技术与方法
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收稿日期 2016/9/5
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备注蔡煜(1984-),女,工程师,主要从事金相化学分析工作,cai_caiyu2001@163.com
引用该论文: CAI Yu,ZHANG Wei,DAI Minming,GE Qiang. Evaluation Methods for Banding Structure of SA210C Seamless Medium Carbon Steel Tubes[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2017, 53(5): 322~324
蔡煜,张伟,戴敏明,葛强. SA210C无缝中碳钢管带状组织的评定方法[J]. 理化检验-物理分册, 2017, 53(5): 322~324
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参考文献
【1】GB/T 13299-1991钢的显微组织评定方法[S].
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