Key Technology of Seamless Steel Pipe

June 29, 2022

Numerical simulation of cold drawing of steel tubes with straight internal rifling

17th International Conference on Metal Forming, Metal Forming 2018, 16-19 September 2018, Toyohashi, Japan Numerical simulation of cold drawing of steel tubes with straight internal rifling Peter Bellaa,*, Roman Durcika, Martin Ridzona, Ludovit Parilak Numerical simulation of cold drawing of steel tubes with straight  
June 29, 2022

PERFORMANCE OF Nb/Cu CLAD SEAMLESS SC CAVITY MADE FROM A PIPE BY HOT&COLD ROLLING AND DEEP-DRAWING

PERFORMANCE OF Nb/Cu CLAD SEAMLESS SC CAVITY MADE FROM A PIPE BY HOT&COLD ROLLING AND DEEP-DRAWING   I. Itoh, Nippon Steel Co., 20-1 Shintomi Futtsu-shi, Chiba-ken, Japan K.Saito, H.Inoue, KEK Accelerator Lab., 1-1 Oho Tsukuba-shi, Ibaraki-ken, Japan W.Singer, DESY, 22603 Hamburg, Germany   Abstract Nippon Steel Co. has successfully developed […]
June 29, 2022

The influence of the processing parameters on the performance of the two-roll piercing operation

The influence of the processing parameters on the performance of the two-roll piercing operation Article in Journal of Mechanical Working Technology · September 1987 Abstract Over the past decade, the demand for higher quality oil-country tubular goods has been increasing and to meet this demand, seamless-pipe mills have been active […]
June 29, 2022

Effect of Groove Designs on Residual Stress and Transverse Shrinkage in GMAW and PGMAW of A333 Seamless Steel Pipes

The e®ectiveness of weld joints primarily depends on the fusion of base metal, minimum heat- a®ected zone (HAZ) and lesser residual stresses. The severity of thermomechanical e®ects e.g. weld shrinkages and residual stresses is signi¯cantly minimized by narrow gap welding tech- nique over the traditional welding. This work describes the […]
July 8, 2022

Part 1. How to control the deformation of precision seamless tubes during the cold drawing process

This paper deals with the deformation of precision seamless tubes during the cold drawing process, using Finite Element Methods. The value of strain obtain by stereology measurement of degree grain boundaries deformation are compared with simulation result for each drawing pass. The material chosen was the E235 and E355 steel […]
July 17, 2022

Ultrasonic testing of seamless steel pipes with matrix arrays

Seamless pipes are demanding and high-technology products. Especially in the oil and gas industry, but also in power plants, they are subject to the most stringent quality requirements. Ultrasonic NDT benches are ideal to detect potential inhomogeneities at industrial speed in rough environments. Using Phased-Array technology with additional Paint-Brush technique […]
August 19, 2022

Differences between the characteristics of different grades of alloy steel pipes, and application cases

Differences between the characteristics of different grades of alloy steel pipes, and application cases 12CrlMoV This steel has the characteristics of creep limit and lasting strength values are similar, in the long-term stretch, it has high plasticity, its oxidation resistance and thermal strength are higher than 2CrMoV, and the workmanship […]