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26.05.2025

Enhancing Surface Quality of HFW Pipes by Adjusting Extrusion Roller Parameters

Abstract This study analyzes the causes of surface defects in high-frequency welded pipe billets, specifically, linear indentations and molten metal pits caused by the upper extrusion rollers. To address...
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OCTG Pipe
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Carbon Steel API 5CT K55 Casing Pipe, 94 PPF, 20 IN, R3, BCT
Carbon Steel API 5CT K55 Casing Pipe, 94 PPF, 20 IN, R3, BCT
Seamless Casing, API 5CT C90, R3 Length, TTGM-3 Connection
Seamless Casing, API 5CT C90, R3 Length, TTGM-3 Connection
OCTG Tubing Pipe, API 5CT Grade J55, K55, N80, C90, C95, P110
OCTG Tubing Pipe, API 5CT Grade J55, K55, N80, C90, C95, P110
API 5DP DZ50, E75, R780, X95, G105, S135 Drill Pipes
API 5DP DZ50, E75, R780, X95, G105, S135 Drill Pipes
High Strength Sucker Rod, 4130 Steel, API 11B Gr.C, 9.14M, DN16
High Strength Sucker Rod, 4130 Steel, API 11B Gr.C, 9.14M, DN16
API 11B Gr.C Welding Sucker Rod, AISI 4138, Black, DN32, 8M
API 11B Gr.C Welding Sucker Rod, AISI 4138, Black, DN32, 8M
AISI 4720 Welding Sucker Rod, API 11B Gr.D, 8 Meters, DN19, Black
AISI 4720 Welding Sucker Rod, API 11B Gr.D, 8 Meters, DN19, Black
Oilfield Sucker Rod, API 11B Gr.K, AISI 4142, DN25, 9.14M, Black
Oilfield Sucker Rod, API 11B Gr.K, AISI 4142, DN25, 9.14M, Black
Oilfield Sucker Rod, AISI 4330, API 11B Gr.C, 7.62M, DN22
Oilfield Sucker Rod, AISI 4330, API 11B Gr.C, 7.62M, DN22
API Spec 11B Gr.D Sucker Rod, AISI 3130, DN19, 9.14 Meters, Black
API Spec 11B Gr.D Sucker Rod, AISI 3130, DN19, 9.14 Meters, Black
API Spec 11B Sucker Rod, Gr.D, AISI 4130, DN16, 8M, Black
API Spec 11B Sucker Rod, Gr.D, AISI 4130, DN16, 8M, Black
AISI 4130 Hammer Union 1502, DN127, NPT, Blue & Red
AISI 4130 Hammer Union 1502, DN127, NPT, Blue & Red
L80 Casing Pup Joint, API 5CT, DN60 EU, 4.7 PPF
L80 Casing Pup Joint, API 5CT, DN60 EU, 4.7 PPF
API 5CT J55 SMLS Casing, DN140, R3, 17.00 BL/FT
API 5CT J55 SMLS Casing, DN140, R3, 17.00 BL/FT
G105 Drill Pipe, API SPEC 5DP, NC38, 88.9mm, WT 9.35mm
G105 Drill Pipe, API SPEC 5DP, NC38, 88.9mm, WT 9.35mm
NC31-LH Drill Pipe, G105, 73mm, WT 9.19mm
NC31-LH Drill Pipe, G105, 73mm, WT 9.19mm
S135 Drill Pipes, NC26, 60.3mm, WT 7.11mm
S135 Drill Pipes, NC26, 60.3mm, WT 7.11mm
NC50 Heavy Weight Drill Pipe, AISI 4145H, 127*9.3mm, W.T 25.4mm
NC50 Heavy Weight Drill Pipe, AISI 4145H, 127*9.3mm, W.T 25.4mm
Seamless Tubing, API 5CT, N80Q, 4-1/2IN, Painted Surface Treatment
Seamless Tubing, API 5CT, N80Q, 4-1/2IN, Painted Surface Treatment
Seamless Casing, API 5CT, N80Q, 9-5/8 Inch, Black Painted Treatment
Seamless Casing, API 5CT, N80Q, 9-5/8 Inch, Black Painted Treatment
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