Effect of Multi-Stand Pipe Mill Rolling and Sizing Process on Structure and Property of N80 Non-Quenching and Tempering Steel 36-40Mn2V for Oil Well Pipe
方剑, 李阳华, 邹喜洋, et al. Effect of Multi-Stand Pipe Mill Rolling and Sizing Process on Structure and Property of N80 Non-Quenching and Tempering Steel 36-40Mn2V for Oil Well Pipe[J]. Special Steel, 2012, 33(3): 53-56.
方剑, 李阳华, 邹喜洋, et al. Effect of Multi-Stand Pipe Mill Rolling and Sizing Process on Structure and Property of N80 Non-Quenching and Tempering Steel 36-40Mn2V for Oil Well Pipe[J]. Special Steel, 2012, 33(3): 53-56.DOI:
The effect of 340 multi-stand pipe mill (MPM) continuous rolling process (at 950 ~ 1 100 °C with strain 0. 5 ~ 0. 8
strain rate 1. 0 s _ 1
water or 3 °C/s cooling) and sizing process ( at 800 ~ 950 °C
with strain 0. 1 ~ 0. 3
strain rate 0. 5 s
-1
air cooiing) on structure
and hardness of steel 36Mn2V and 40Mn2V has been simulated by using Gleeble-1500 thermal simulation machine. Results show that with MPM deformation temperature being higher than 1 050 °C at strain 0. 5
the complete dynamic recrystallization of steel 36Mn2V and 40Mn2V occurs
the grains are fine and the comprehensive properties are improved; As sizing strain of steel 36Mn2V is 0. 3 and sizing strain of steel 40Mn2V is 0. 2
as the sizing temperature is controlled higher than 835 °C