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Anti-corrosion stainless steel pipe for ship

A stainless steel pipe, anti-corrosion technology, applied in the direction of coating, furnace type, furnace, etc., can solve the problems of unsatisfactory corrosion resistance and prone to corrosion, improve corrosion resistance and oxidation resistance, and prevent intergranular corrosion , Improving the effect of high temperature oxidation resistance

Active Publication Date: 2021-02-12
安徽天康特种钢管有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The stainless steel pipes used in general ships are prone to corrosion due to long-term exposure to high moisture content environments. Therefore, the stainless steel pipes used in ships have higher requirements for their corrosion resistance. After anti-corrosion treatment, its corrosion resistance is still not ideal

Method used

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  • Anti-corrosion stainless steel pipe for ship
  • Anti-corrosion stainless steel pipe for ship
  • Anti-corrosion stainless steel pipe for ship

Examples

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Effect test

Embodiment 1

[0042] The present embodiment provides a kind of anti-corrosion marine stainless steel pipe, including anti-corrosion stainless steel pipe and the anti-corrosion coating applied on the surface of anti-corrosion stainless steel pipe, by mass percentage, anti-corrosion stainless steel pipe includes the following elements:

[0043] Chromium Cr: 14%;

[0044] Nickel Ni: 10%;

[0045] Titanium Ti: 0.1%;

[0046] Niobium Nb: 0.1%;

[0047] Molybdenum Mo: 1.5%;

[0048] Silicon Si: 0.8%;

[0049] Carbon C: 0.03%;

[0050] Sulfur S: 0.015%;

[0051] Nitrogen N: 0.01%.

[0052] The balance is Fe and other unavoidable impurities, and the sum of the mass percentages of the above-mentioned elements is 100%.

[0053] In this embodiment, the anti-corrosion coating adopts one of alcohol-soluble phenolic resin, modified phenolic resin, pure phenolic resin or polyurea elastic coating.

[0054] A preparation method of the anti-corrosion marine stainless steel pipe as described above, co...

Embodiment 2

[0072] The present embodiment provides a kind of anti-corrosion marine stainless steel pipe, including anti-corrosion stainless steel pipe and the anti-corrosion coating applied on the surface of anti-corrosion stainless steel pipe, by mass percentage, anti-corrosion stainless steel pipe includes the following elements:

[0073] Chromium Cr: 17%;

[0074] Nickel Ni: 15%;

[0075] Titanium Ti: 0.2%;

[0076] Niobium Nb: 0.2%;

[0077] Molybdenum Mo: 3.0%;

[0078] Silicon Si: 0.9%;

[0079] Carbon C: 0.05%;

[0080] Sulfur S: 0.025%;

[0081] Nitrogen N: 0.15%.

[0082] The balance is Fe and other unavoidable impurities, and the sum of the mass percentages of the above-mentioned elements is 100%.

[0083] In this embodiment, the anti-corrosion coating adopts one of alcohol-soluble phenolic resin, modified phenolic resin, pure phenolic resin or polyurea elastic coating.

[0084] A preparation method of the anti-corrosion marine stainless steel pipe as described above, co...

Embodiment 3

[0102] The present embodiment provides a kind of anti-corrosion marine stainless steel pipe, including anti-corrosion stainless steel pipe and the anti-corrosion coating applied on the surface of anti-corrosion stainless steel pipe, by mass percentage, anti-corrosion stainless steel pipe includes the following elements:

[0103] Chromium Cr: 20%;

[0104] Nickel Ni: 20%;

[0105] Titanium Ti: 0.3%;

[0106] Niobium Nb: 0.3%;

[0107] Molybdenum Mo: 4.0%;

[0108] Silicon Si: 1.0%;

[0109] Carbon C: 0.08%;

[0110] Sulfur S: 0.04%;

[0111] Nitrogen N: 0.3%.

[0112] The balance is Fe and other unavoidable impurities, and the sum of the mass percentages of the above-mentioned elements is 100%.

[0113] In this embodiment, the anti-corrosion coating adopts one of alcohol-soluble phenolic resin, modified phenolic resin, pure phenolic resin or polyurea elastic coating.

[0114] A preparation method of the anti-corrosion marine stainless steel pipe as described above, comp...

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Abstract

The invention relates to an anti-corrosion stainless steel pipe for a ship. The anti-corrosion stainless steel pipe comprises an anti-corrosion stainless steel pipe body and anti-corrosion paint smeared on the surface of the anti-corrosion stainless steel pipe body. The anti-corrosion stainless steel pipe body comprises, by mass percent, Cr, Ni, Ti, Nb, Mo, Si, C, S and N. According to the anti-corrosion stainless steel pipe, electrochemical corrosion can be effectively avoided through the Cr element; and through a coating formed after the anti-corrosion paint is dried and cured on the surfaceof the stainless steel pipe body, existence of a corrosive medium on the surface of the stainless steel pipe body is prevented, permeation of water, oxygen and ions to a paint film is obstructed, a compact protection function is achieved on the stainless steel pipe body, and the corrosion resistance and oxidation resistance of the stainless steel pipe body can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of stainless steel pipes, specifically an anti-corrosion marine stainless steel pipe and a preparation method thereof. Background technique [0002] The stainless steel pipes used in general ships are prone to corrosion due to long-term exposure to high moisture content environments. Therefore, the stainless steel pipes used in ships have higher requirements for their corrosion resistance. After anti-corrosion treatment, its corrosion resistance is still not ideal. In view of this, we propose a corrosion-resistant marine stainless steel pipe and its preparation method. Contents of the invention [0003] In order to make up for the above deficiencies, the present invention provides an anti-corrosion marine stainless steel pipe and a preparation method thereof. [0004] Technical scheme of the present invention is: [0005] A kind of anti-corrosion marine stainless steel pipe, comprising anti-corrosion st...

Claims

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Application Information

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IPC IPC(8): C22C38/50C22C38/48C22C38/44C22C38/02C21D9/08B05D5/00B05D7/24B05D7/14B05D1/38
CPCC22C38/50C22C38/48C22C38/44C22C38/02C22C38/001C21D9/08B05D5/00B05D7/24B05D7/14B05D7/544B05D7/546
Inventor 丁玉山殷世清赵建国
Owner 安徽天康特种钢管有限公司
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