Structure and Performance of Developed SA-516Gr65 HIC-Resistant Steel Plate for Pressure Vessel in Petrochemical Industry

Special Steel ›› 2022, Vol. 43 ›› Issue (1): 86-89.

Special Issue: 钢板

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Structure and Performance of Developed SA-516Gr65 HIC-Resistant Steel Plate for Pressure Vessel in Petrochemical Industry

Zheng Jianping¹, Wu Riming²，Xiang Shaosong²

1 Department of Technology and Quality, Nanjing Iron & Steel Co Ltd, Nanjing 210035;
2 School of Material and Engineering, Shanghai University of Engineering Science, Shanghai 201600

Received:2021-05-27 Online:2022-01-25 Published:2022-03-18

开发的石油化工抗 HIC 容器用 SA-516Gr65 钢板的组织和性能

郑建平¹，吴日铭²，项少松²

1 南京钢铁股份有限公司科技质量部，南京 210035 ;
2 上海工程技术大学材料工程学院，上海 201600

作者简介:郑建平(1981-)，男，硕士(2009 年安徽工业大学)，高级工程师，2006 年安徽工业大学(本科)毕业，特殊容器品种研发和管理。

Abstract

Abstract: The developed 12. 70 ~ 58. 58 mm SA-516Gr65 steel plate ( /% ： 0. 13C, 0. 26Si, 0. 89Mn, 0. 006P, 0.000 7S,0. 33Ni,0. 062Alt ) is produced by 150 t BOF-LF-RH-CC-TMCP flow sheet. Results show that of the steel plate normalized at 880 ~910 ℃, the yield strength 344 ~417 MPa, tensile strength 485 - 500 MPa, -50 ℃： impact energy 167 ~292 J, to meet the requirement of specification. The non-metallic inclusions in steel are mainly consisted of spherical oxide inclusions, and the size is less than 10 μm. After hydrogen induced cracking ( HIC ) test, no cracks are observed on the specimen, and the average values of CLR ( cracking length ratio ), CTR ( cracking thickness ratio ) and CSR ( cracking sensitivity ratio ) are zero, it is up to the MESC SPE 74/125 technical specification. The main microstructure of the steel plate is pearlite and ferrite, and the grains are refined and dispersed uniformly.

摘要： 开发的SA-516Gr65钢板(12.70～28.58 mm)(/%:0.13C,0.26Si,0.89Mn,0.006P,0.000 7S,0.33Ni,0.062Alt)经150 t BOF-LF-RH-CC-TMCP流程生产。结果表明,经880～910℃正火后钢板屈服强度344～417 MPa,抗拉强度485～500 MPa,-50℃冲击功167～292 J,满足标准要求。钢中非金属夹杂物主要为球状氧化物,大小在10μm内;氢致开裂敏感性试验后,未观察到裂纹,其裂纹长度百分比(CLR)、裂纹厚度百分比(CTR)、裂纹敏感百分比(CSR)平均值均为0,满足MESC SPE 74/125标准;钢板显微组织主要为珠光体+铁素体,晶粒均匀细小。

关键词: SA-516Gr65抗HIC钢板, 屈服强度, 氢致开裂, 显微组织

Zheng Jianping, Wu Riming, Xiang Shaosong. Structure and Performance of Developed SA-516Gr65 HIC-Resistant Steel Plate for Pressure Vessel in Petrochemical Industry[J]. Special Steel, 2022, 43(1): 86-89.

郑建平, 吴日铭, 项少松 . 开发的石油化工抗 HIC 容器用 SA-516Gr65 钢板的组织和性能[J]. 特殊钢, 2022, 43(1): 86-89.

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Structure and Performance of Developed SA-516Gr65 HIC-Resistant Steel Plate for Pressure Vessel in Petrochemical Industry

开发的石油化工抗 HIC 容器用 SA-516Gr65 钢板的组织和性能

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