摘要
通过优化设计钢的化学成分,合理制定冶炼、连铸、轧制工艺中各项关键控制参数,成功开发了AISI4137H石油钻杆接头用钢。产品实物质量检验表明,钢材组织致密,中心疏松0.5~1.0级;晶粒细小,晶粒度7~8级;洁净度高、淬透性好、力学性能稳定,最小强度值高出标准要求30 MPa以上,-20℃低温冲击功84~108 J,满足钻杆接头用钢标准及使用要求。
By optimizing the chemical composition, rationally formulating the key control parameters of smelting, continuous casting and rolling process, AISI4137H steel for drill pipe joint was successfully developed. The product quality testing show that： the steel is compact in structure, the central porosis is grade 0.5-1.0, the grain size is fine between grade 7-8, the cleanliness is higher, hardenability is better and the mechanical properties is stable, the minimum strength value is higher than the standard requirement of 30 MPa or more, and the low temperature impact energy at -20 ℃ is 84-108 J, which meets the steel standard and application requirement of the drill pipe joint.
出处
《山东冶金》
CAS
2017年第6期19-21,26,共4页
Shandong Metallurgy
