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A technology of manual argon arc welding and welding wire steel, which is applied in the field of metallurgy, can solve problems such as increasing product costs, and achieve the effects of ensuring performance, meeting welding requirements, and stable quality
Active Publication Date: 2019-10-29
TANGSHAN NORMAL UNIV +1
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[0003] However, according to statistics, currently in the welding consumables market, most of the welding 690MPa low-alloy high-strength steels use the Mn-Ni-Mo alloy system. Since Ni is a precious metal, adding too much will inevitably increase the product cost
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Embodiment 1
[0028] Welding wire steel for manual argon arc welding, the mass percentage composition is: C is 0.03%, Mn is 1.15%, Si is 0.80%, S is 0.005%, P is 0.010%, Cr is 0.25%, Mo is 0.25%, Ni is 0.15%, Microalloy: 0.015% Ti, 0.025% Nb, 0.010% Zr, 97.305% Fe and unavoidable impurity elements.
Embodiment 2
[0030] Welding wire steel for manual argon arc welding, the mass percentage composition is: C is 0.06%, Mn is 1.50%, Si is 0.70%, S is 0.010%, P is 0.020%, Cr is 0.10%, Mo is 0.20%, Ni is 0.20%, Microalloy: 0.010% for Ti, 0.020% for Nb, 0.010% for Zr, 97.170% for Fe and unavoidable impurity elements.
Embodiment 3
[0032]Welding wire steel for manual argon arc welding, the mass percentage composition is: C is 0.04%, Mn is 0.80%, Si is 0.70%, S is 0.005%, P is 0.015%, Cr is 0.05%, Mo is 0.10%, Ni is 0.10%, microalloying: Ti is 0.005%, Nb is 0.010%, Zr is 0.010%, Fe and unavoidable impurity elements are 98.165%.
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Abstract
The invention discloses welding wire steel for manual argon arc welding. The welding wire steel comprises, by mass, 0.0001%-0.08% of C, 0.80%-1.50% of Mn, 0.70%-0.95% of Si, 0.0001%-0.010% of S, 0.0001%-0.020% of P, 0.0001%-0.40% of Cr, 0.10-0.30% of Mo, 0.0001%-0.40% of Ni, and the balance Fe and inevitable impurity elements. The welding wire steel is low in cost, high in welding seam strength and toughness, stable in quality and good in welding performance, and can meet the use requirements of welding wire manufacturers. According to the welding wire steel, the welding performance of the low-alloy high-strength welding wire is improved in a limited mode while the high-strength of weld metal is ensured, the occurrence of cold cracks is controlled, the splashing rate is small, and the welding requirements of the low-alloy high-strength steel are met.
Description
technical field [0001] The invention relates to the technical field of metallurgy, in particular to a welding wire steel for manual argon arc welding. Background technique [0002] At present, with the rapid development of energy, petroleum, chemical industry, hydropower and other industries, engineering structures are becoming more and more large-scale and lightweight, and the demand for steel plates is also increasing, such as large crude oil storage tanks, large spherical Tanks, offshore oil production platforms, long-span bridge dyeing, large pipelines, etc. Low-alloy high-strength steel has good weldability, excellent formability and low manufacturing cost, so it is widely used in pressure vessels, vehicles, bridges, construction, construction machinery, mining machinery, textile machinery, marine structures and other fields. Among them, 690MPa low-alloy high-strength steel has been widely used. With the development of modern industry, the welding structure is developi...
Claims
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