Ke Tong | Scientific.Net
Abstract: The X80 girth welds were produced by solid-wire gas metal arc welding (GMAW) and shield metal arc welding (SMAW) using two welding consumables respectively, which contained different mass fraction of C, Mo and Ni. The tensile properties, notch
For Mild Steel and 490MPa High Tensile Strength Steel - Kobe Welding
X80 KOBE-8010S Filler and cap - LB-65D LB-98VS LB-98VS Weldability Stability of root pass Weld soundness Crack resistance Welding efficiency Groove size tolerance
Petrosadid: Electric Resistance/ Fusion Welded (ERW and …
The use of pre heat together with a carefully selected surface preparation and the use of low hydrogen, hydrogen tolerant consumable wire eliminate the risk of hydrogen cracking during welding. Post weld heat treatment is used to control the more significant problem of the transformation of the substrate to un-tempered martensitic structure during the process.
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Microstructure model for the heat-affected zone of X80 …
Microstructure model for the heat-affected zone of X80 linepipe steel Downloaded by [The University of British Coluia] at 09:25 04 March 2016 T. Garcin1, M. Militzer∗ 1, W. J. Poole1 and L. Collins2 An important aspect of the integrity of oil and gas pipelines
SSAW Pipe - CNPC
Steel Grade：X42-X80,API Spec 5L Specifiion：API 5L、GB/T9711、ISO3183 and additional technical requirement from the customer. The size of SSAW pipe
Advanced submerged arc welding processes for Arctic …
Multi-wire welding delivers exceptional penetration and is capable of operating at high travel speed. Moreover, as in multi-wire welding, the energy loss to the environment is comparatively smaller than in single-wire welding, and it can be expected that in multi-wire
Sharif Digital Repository / Sharif University of Technology …
The thermal simulated involved heating the X80 steel specimens to the peak temperature of 1400 C, with different cooling rates. The four-wire tandem submerged arc welding process, with different heat input values, was used to generate a welded microstructure.
15-Structure and properties of weld joints in X80, X90, …
(3) When welding longitudinal seams with high lin ear energy, for X80, K70, and X90 steel pipe, there is a high probability of sections whose hardness is lower (by HV 20) than in the basic metal. This results in slight nonuniformity of the strength within the weld.
Black Welding Lsaw Carbon Steel Pipe- CBD Steel
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PIPEWELD 78LH FLUX reduces out-gassing
Deceer 6, 2018 - ESAB Welding & Cutting Products introduced PIPEWELD 78LH FLUX, a low hydrogen flux for longitudinal or spiral welding of pipeline steel grades, such as X70 and X80, using multi-wire submerged arc welding processes.A new flux formulation
New Product Mix|Products & Services
Steel Name:Submerged-arc welding wire steel NGX80S/90S/100s for high-leveled pipeline(X80/90/100) Steel type: Welding wire steel Specifiion: Φ5.5～6.5mm
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to conditions and welding techniques over which HOBART has no control, including but not limited to plate chemistry, weldment design, fabriion methods, wire size, welding procedure, service requirements and the environment.
LARGE-DIAMETER WELDED PIPELINES - X80 / L555 - X70 …
(1) Raw materials are strip coils, welding wire, flux. Strict physical and chemical testing is required before input. (2) The steel head and tail are butt jointed, and the single wire or double wire submerged arc welding is used, and the automatic submerged arc welding is used after the steel pipe is rolled.