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High-strength heat-resistant steel submerged arc welding wire

A technology of submerged arc welding wire and heat-resistant steel, which is applied in the direction of welding medium, welding equipment, welding/cutting medium/material, etc. It can solve the problems of complex composition design, increased smelting difficulty, heat resistance, etc., and achieves simple and good design. Welding process performance, good high temperature resistance effect

Inactive Publication Date: 2008-12-31
CHENGDU XINDAYANG WELDING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The composition design is relatively complicated and messy, which increases the difficulty of smelting; the cost is also high, and it is not heat-resistant

Method used

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  • High-strength heat-resistant steel submerged arc welding wire

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Embodiment Construction

[0027] Its composition and mass percentage of high-strength heat-resistant steel submerged arc welding wire of the present invention are:

[0028] C 0.10~0.16%,

[0029] Mn 0.60~1.10%,

[0030] Si 0.30~0.60%,

[0031] S ≤ 0.025%,

[0032] P ≤ 0.025%,

[0033] Cu≤0.35%,

[0034] Cr 1.10~1.85%,

[0035] Ni≤0.50%,

[0036] Mo 0.50~0.80%,

[0037] The balance is Fe.

[0038] Further, the preferred range of Cr is 1.30-1.80%, the preferred range of Ni is 0.30-0.50%, and the preferred range of S and P is ≤0.020%.

[0039] Embodiment of the present invention sees table 1

[0040] The finished product chemical composition (%) of table 1 embodiment welding wire

[0041] Numbering

C

Si

mn

Cu

Cr

Ni

Mo

S

P

1

0.11

0.31

0.62

0.30

1.10

0.15

0.51

0.010

0.010

2

0.12

0.50

0.75

0.12

1.52

0.21

0.53

0.010

0.012 ...

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Abstract

The invention provides a high-intensity and heat-resisting steel submerged arc welding wire which comprises the following components and weight percentages: 0.10 - 0.16% of C, 0.60 - 1.10% of Mn, 0.30 - 0.60% of Si, not more than 0.025% of S, not more than 0.025% of P, not more than 0.35% of Cu, 1.10 - 1.85% of Cr, not more than 0.50% of Ni, 0.50 - 0.80% of Mo, and sufficient Fe. The high-intensity and heat-resisting steel submerged arc welding wire of the invention has simple design components, the obtained deposited metal and welding joint have good high-temperature and high-pressure resistance performance, and can reduce the occurrence of embrittlement resulted from long-time use under high temperature conditions and have good comprehensive properties particularly under high temperature working conditions; the high-intensity and heat-resisting steel submerged arc welding wire can ensure that the obtained deposited metal and welding joint have enough creep strength, endurance strength, persistent plasticity, good high-temperature structural stability and heat resistance and good obdurability, and good welding process property.

Description

technical field [0001] The invention belongs to the field of welding materials, and in particular relates to a heat-resistant steel submerged arc welding wire. Background technique [0002] Existing submerged arc welding wires such as the patent "High Toughness Welding Wire Suitable for Low Carbon Microalloyed Steel" proposed by Yanshan University disclosed in Chinese Patent Application No. 02119591.9. The chemical composition formula of welding wire is as follows: C: 0.01~0.12%, Si: 0.10~0.40%, Mn: 0.60~2.30%, Cr: 0.01~0.22%, Mo: 0.08~0.60%, V: 0.004~0.06%, Cu : 0.01-0.50%, Ni: 0.01-0.60%, Al: 0.01-0.06%, Nb: 0.02-0.08%, Ti: 0.01-0.20%, B: 0.0001-0.01%, Re: 0.001-0.5%. [0003] This welding wire contains Cu, Cr, Ni, Mo, Nb, V, Ti, B, Re and other alloying elements. The composition design is relatively complicated and messy, which increases the difficulty of smelting; the cost is also high, and it is not heat-resistant. Contents of the invention [0004] The purpose of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30
Inventor 刘兴诚毛天平
Owner CHENGDU XINDAYANG WELDING MATERIAL
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