Anticorrosive steel for outdoor cabinets

A technology for outdoor cabinets and steel plates, applied in the direction of coating, etc., can solve the problems of sensitivity to intergranular corrosion, poor pitting corrosion resistance, poor low temperature toughness, etc., and achieve the effect of reasonable composition, excellent performance, and improved bonding strength.

Inactive Publication Date: 2017-06-16
ENG EQUIP CO LTD SUZHOU SAI SIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it can achieve high strength, there are also many shortcomings, such as: coarse grains, poor low temperature toughness, sensitive to intergranular corrosion, poor pitting corrosion resistance, poor processability, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] An anti-corrosion steel for an outdoor cabinet provided in this embodiment is characterized in that the mass percentage of its chemical composition is: C: 0.041%, Cr: 12.5%, Si: 0.25%, Mn: 1.76%, Ni: 0.35% , Re: 0.25%, Al: 0.024%, Zr: 0.31%, Se: 0.21%, W: 0.15%, Ti: 0.13%, Ca: 0.35%, Pd: 0.12%, Co: 0.41%, B: 0.031, Mo: 0.13%, S≤0.03%, P≤0.02%, rare earth metal: 0.37%, the balance is Fe;

[0028] The chemical composition mass percent of the rare earth metal is: Pm: 11%, Pr: 8%, Lu: 5%, Dy: 7%, Gd: 8%, Sm: 5%, Ho: 9%, and the balance is La .

[0029] The surface of the steel plate in this embodiment is sprayed with an anti-icing adhesion emulsion, and the mass percentage components of the anti-icing adhesion emulsion are: 4-methylcyclohexyl isocyanate: 6.7%, urethane: 10.5%, α - Linolenic Acid: 4.3%, Ethoxylated Bisphenol A Dimethacrylate: 2.3%, Trimethylolpropane Trimethacrylate: 5.5%, Benzoyl Peroxide: 2.2%, Butyl Acrylate: 1.3% , 2-hydroxy-1,2-diphenylethanone: 5.7%...

Embodiment 2

[0031] The anti-corrosion steel for outdoor cabinet provided in this embodiment is characterized in that the mass percentage of its chemical composition is: C: 0.042%, Cr: 12.6%, Si: 0.27%, Mn: 1.76%, Ni: 0.38% , Re: 0.27%, Al: 0.028%, Zr: 0.32%, Se: 0.22%, W: 0.17%, Ti: 0.14%, Ca: 0.37%, Pd: 0.28%, Co: 0.43, B: 0.032%, Mo: 0.17%, S≤0.03%, P≤0.02%, rare earth metal: 0.41%, the balance is Fe;

[0032] The chemical composition mass percent of the rare earth metal is: Pm: 15%, Pr: 10, Lu: 6%, Dy: 9%, Gd: 10%, Sm: 6%, Ho: 11%, and the balance is La.

[0033] The surface of the steel plate in this embodiment is sprayed with an anti-icing adhesion emulsion, and the mass percentage components of the anti-icing adhesion emulsion are: 4-methylcyclohexyl isocyanate: 6.9%, urethane: 10.7%, α - Linolenic Acid: 4.5%, Ethoxylated Bisphenol A Dimethacrylate: 2.5%, Trimethylolpropane Trimethacrylate: 5.7%, Benzoyl Peroxide: 2.4%, Butyl Acrylate: 1.5% , 2-hydroxy-1,2-diphenylethanone: 5.9%, ...

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Abstract

The invention discloses an anticorrosive steel for outdoor cabinets. The anticorrosive steel comprises the following chemical components by mass percentage: 0.041-0.043% of C, 12.5-13.7% of Cr, 0.25-0.29% of Si, 1.76-1.77% of Mn, 0.35-0.42% of Ni, 0.25-0.29% of Re, 0.024-0.035% of Al, 0.31-0.33% of Zr, 0.21-0.23% of Se, 0.15-0.19% of W, 0.13-0.15% of Ti, 0.35-0.47% of Ca, 0.12-0.38% of Pd, 0.41-0.45% of Co, 0.031-0.033% of B, 0.13-0.21% of Mo, less than or equal to 0 .03% of S, less than or equal to 0.02% of P, 0.37-0.42% of rare earth metal, and the balance Fe. The Co, Mo, Cr and Ti elements of alloy steel provided by the invention can improve the temper resistance of martensite, and inhibit dislocation substructure recovery; Ni can improve the toughness of ferrite matrix and refine grains, also can improve the plasticity and toughness of steel, and reduce cleavage; and Co can improve Mo2C nucleation driving force, and promote the precipitation of fine and dispersed Mo-containing compounds.

Description

technical field [0001] The invention relates to an anti-corrosion steel, in particular to an anti-corrosion steel for an outdoor cabinet, belonging to the technical field of metal smelting and treatment. Background technique [0002] The reason why stainless steel has excellent rust resistance and corrosion resistance is that Cr on the surface of stainless steel easily forms Cr with oxygen in the atmosphere. 2 o 3 The dense passive oxide film blocks the water vapor and oxygen in the atmosphere and protects the substrate from being corroded by oxidation. Even if the material itself is damaged by external force or chemical methods, Cr 2 o 3 It can also regenerate rapidly. In addition to corrosion resistance, stainless steel also has the advantages of heat resistance, high temperature corrosion resistance, and high temperature strength. On the other hand, although the mechanical properties of stainless steel are not as good as carbon steel, the work hardening phenomenon is h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/58C22C38/02C22C38/06C22C38/60C22C38/44C22C38/50C22C38/52C22C38/54C09D4/02C09D4/06C09D7/12
CPCC22C38/58C09D4/06C09D7/61C09D7/63C09D7/65C22C38/002C22C38/005C22C38/02C22C38/06C22C38/44C22C38/50C22C38/52C22C38/54C22C38/60
Inventor 钱燕华陈平
Owner ENG EQUIP CO LTD SUZHOU SAI SIDE
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