摘要
论述了对20G锅炉管子材料中存在的带状组织进行了横向力学性能的研究。经研究发现，管子的横向抗拉强度比纵向抗拉强度低40～５０ ＭＰa，塑性指标大致相近。此外，S 等非金属夹杂物对横向性能影响很大，当S 含量小于0.02 %时一般不会发生早期失效。
： This paper describes the banded microstructure on horizontal properties of 20G boiler tube. The horizontal tensile strength is 40～５０MPa lower than parallely tensile strength, and elongation is approximatel equal. In addition, the effects of inclusions of Sulphur etc. on the horizontal properties is strong. When S≤0.02%, the normal working condition desn't failure early.
出处
《锅炉制造》
2000年第2期52-57,共6页
Boiler Manufacturing
关键词
锅炉管
横向力学性能
锅炉
钢管带状组织
boiler tube
horizontal mechanics property
nonmetal Inclusion
