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Austenitic stainless steel bare welding wire for sodium cooled fast reactor and application of austenitic stainless steel bare welding wire

A technology of austenitic stainless steel and sodium-cooled fast reactor, which is applied in welding medium, welding equipment, welding equipment, etc., can solve the problems of dependence on imports, and achieve the effects of small spatter, stable process and good process performance

Active Publication Date: 2018-01-09
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problem that there is no certified welding wire for sodium-cooled fast stacking among the existing stainless steel welding wires in China, and it has been dependent on imports, the purpose of the present invention is to provide an austenitic stainless steel light welding wire for sodium-cooled fast stacking and its application, the welding wire is suitable for the welding of key structural components in sodium-cooled fast reactors

Method used

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  • Austenitic stainless steel bare welding wire for sodium cooled fast reactor and application of austenitic stainless steel bare welding wire
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  • Austenitic stainless steel bare welding wire for sodium cooled fast reactor and application of austenitic stainless steel bare welding wire

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Embodiment 1

[0019] The basic chemical composition of the stainless steel wire is (weight ratio):

[0020] C: 0.042%, Cr: 18.84%, Ni: 12.6%, Mo: 2.49%, N: 0.063%, Mn: 1.59%, Si: 0.42%, Nb≤0.005%, P: 0.004%, S: 0.0007%, The remaining ingredients are iron and unavoidable impurities.

Embodiment 2

[0022] The basic chemical composition of the stainless steel wire is (weight ratio):

[0023] C: 0.058%, Cr: 18.79%, Ni: 12.7%, Mo: 2.45%, N: 0.069%, Mn: 1.59%, Si: 0.47%, Nb≤0.005%, P: 0.004%, S: 0.0007%, The remaining ingredients are iron and unavoidable impurities.

Embodiment 3

[0025] The basic chemical composition of the stainless steel wire is (weight ratio):

[0026] C: 0.043%, Cr: 18.97%, Ni: 12.6%, Mo: 2.48%, N: 0.052%, Mn: 1.57%, Si: 0.43%, Nb≤0.005%, P: 0.004%, S: 0.0015%, The remaining ingredients are iron and unavoidable impurities.

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Abstract

The invention discloses an austenitic stainless steel bare welding wire for a sodium cooled fast reactor and application of the austenitic stainless steel bare welding wire, and belongs to the technical field of welding materials. The chemical components of the welding wire include, by weight, 0.03-0.08% of C, 18.0-20.0% of Cr, 11.5-13.5% of Ni, 2.00-2.60% of Mo, 0.04-0.08% of N, 1.40-2.40% of Mn,0.30-0.70% of Si and the balance iron and unavoidable impurities. The welding wire is suitable for welding of the sodium cooled fast reactor, and is small in splashing, stable in process and good intechnological property when welding is conducted. By adopting the stainless steel welding wire, a welding joint conforming to required properties can be obtained, and the stainless steel welding wirecan replace an imported welding wire.

Description

technical field [0001] The invention relates to the technical field of welding materials, in particular to an austenitic stainless steel light welding wire for sodium-cooled fast stacking and its application. The welding wire is applied to sodium-cooled fast stacking welding. Background technique [0002] The structure of the sodium-cooled fast reactor is welded by different components (such as inner and outer containers, support structures in the reactor, grid headers, core barrels, heat shields, etc.). Due to the large structure size and compact and complex design of the fast reactor, the welding process is complicated and the welding volume is large. During the operation of the fast reactor, the structural materials in the reactor are exposed to high temperature, high corrosion, and high radiation environment for a long time, and the working conditions are extremely harsh. The neutron dose borne by the inner support is about 1018n / cm 2 ; The neutron dose borne by the co...

Claims

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Application Information

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IPC IPC(8): B23K35/30B23K9/167
Inventor 陆善平魏世同李依依
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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