850MPa旋挖机钻杆用管的材料特性分析

Dong Zhen,Mi Yong-feng,Jiang Hai-long,Yao Xiao-le,Sun Wen-xiu,Luo Zhong-hui,Xu Bo-chao

Science & Technology of Baotou Steel(Group) Corporation（2022）

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Abstract

通过对包钢钢管有限公司生产的850 MPa旋挖机钻杆用无缝管进行力学性能、显微组织、韧脆转变温度、扭转强度、弯曲疲劳等材料特性的测试分析,结果表明:产品的力学性能、非金属夹杂物含量、晶粒度尺寸级别、带状偏析级别等技术指标均能满足850 MPa高强高韧旋挖机钻杆用管的使用要求.同时,材料还具有韧脆转变温度低、抗扭强度大、抗弯曲疲劳性好等优点.

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