Austenitic stainless steel submerged arc welding wire

A technology of austenitic stainless steel and submerged arc welding wire, applied in the direction of welding medium, welding equipment, welding/cutting medium/material, etc., can solve problems such as difficult control, achieve difficult selective deformation, stable chemical composition, The effect of excellent mechanical properties

Inactive Publication Date: 2017-05-31
KUSN GINTUNE WELDING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many factors affecting welding. C and N in the deposited metal composition are easily changed by welding conditions and protective atmosphere, and it is difficult to accurately control

Method used

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  • Austenitic stainless steel submerged arc welding wire
  • Austenitic stainless steel submerged arc welding wire
  • Austenitic stainless steel submerged arc welding wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0101] In order to achieve the purpose of the present invention, an austenitic stainless steel submerged arc welding wire includes submerged arc welding wire and deposited metal. The submerged arc welding wire in this embodiment is marked as submerged arc welding wire 1, and the chemical composition of submerged arc welding wire 1 is Concrete percentage by weight is as follows table 1:

[0102] The chemical composition weight percent (%) of table 1 submerged arc welding wire 1

[0103]

[0104] The sum of the weight percentages of the chemical components of the submerged arc welding wire 1 is 100%, and the rest is Fe.

[0105] The deposited metal in this embodiment is marked as deposited metal 1, and the specific weight percentages of the chemical components of deposited metal 1 are as follows in Table 2:

[0106] The specific weight percentage (%) of the chemical composition of table 2 deposited metal 1

[0107]

[0108] The sum of the weight percentages of the chemic...

Embodiment 2

[0114] In order to achieve the purpose of the present invention, an austenitic stainless steel submerged arc welding wire includes submerged arc welding wire and deposited metal. The submerged arc welding wire in this embodiment is marked as submerged arc welding wire 2, and the chemical composition of submerged arc welding wire 2 is Concrete percentage by weight is as follows table 4:

[0115] The chemical composition weight percent (%) of table 4 submerged arc welding wire 2

[0116]

[0117] The sum of the weight percentages of the chemical components of the submerged arc welding wire 2 is 100%, and the remainder is Fe.

[0118] The deposited metal in this embodiment is marked as deposited metal 2, and the specific weight percentage of the chemical composition of deposited metal 2 is as follows in Table 5:

[0119] The specific weight percentage (%) of the chemical composition of table 5 deposited metal 2

[0120]

[0121] The sum of the weight percentages of the ch...

Embodiment 3

[0127] In order to achieve the purpose of the present invention, an austenitic stainless steel submerged arc welding wire includes submerged arc welding wire and deposited metal. The submerged arc welding wire in this embodiment is marked as submerged arc welding wire 3, and the chemical composition of submerged arc welding wire 3 Concrete weight percent is as follows table 7:

[0128] The chemical composition weight percent (%) of table 7 submerged arc welding wire 3

[0129]

[0130] The sum of the weight percentages of the chemical components of the submerged arc welding wire 3 is 100%, and the remainder is Fe.

[0131] The deposited metal in this embodiment is marked as deposited metal 3, and the specific weight percentage of the chemical composition of deposited metal 3 is as follows in Table 8:

[0132] The specific weight percentage (%) of the chemical composition of table 8 deposited metal 3

[0133]

[0134] The sum of the weight percentages of the chemical co...

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Abstract

The invention discloses an austenitic stainless steel submerged arc welding wire. The austenitic stainless steel submerged arc welding wire comprises a submerged arc welding wire and deposited metal, and is characterized in that the submerged arc welding wire consists of the following chemical components in percentages by weight: C, Si, Mn, P, S, Cr, Ni, Mo, Ti, N and Fe; the deposited metal consists of the following chemical components in percentages by weight: C, Si, Mn, P, S, Cr, Ni, Mo, Ti, N and Fe; and the weight percentage of the chemical components of the submerged arc welding wire is regulated and controlled, the weight percentage of the chemical components of the deposited metal is regulated and controlled, the weight percentage of the chemical components including Si, Mo and Ti in the deposited metal is also regulated and controlled, so that the chemical components of the deposited metal of a welded joint are stable, and the mechanical properties of the submerged arc welding wire are excellent. The austenitic stainless steel submerged arc welding wire has the advantage that the welded joint cannot deform selectively when in a bending test.

Description

technical field [0001] The invention relates to the field of welding materials, in particular to an austenitic stainless steel submerged arc welding wire. Background technique [0002] Austenitic stainless steel SUS304 has excellent corrosion resistance, good mechanical properties such as tensile strength and low temperature impact toughness, and is especially suitable for LNG (liquefied natural gas) storage tanks and building structures. Rolled austenitic stainless steel SUS304 has high tensile strength, generally 620MPa-660MPa. However, the tensile strength of 308 series welding materials commonly used at present is relatively low, generally 540MPa-590MPa. This difference in strength will cause selective deformation of welded joints during bending tests, resulting in cracking. [0003] Japanese bulletin No. 8-267282 mentions that the above problems can be solved by adjusting the alloy composition C+N in an appropriate amount and increasing the strength of the weld metal. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30B23K35/36
CPCB23K35/3086B23K35/36
Inventor 蔡鸿祥郑伊洛吴俊锋
Owner KUSN GINTUNE WELDING
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