A kind of anti-corrosion steel plate for shelf heavy beam and its preparation method

A heavy-duty beam and anti-corrosion technology, which is applied in the field of steel plates and its preparation, can solve the problems of low-temperature toughness of steel plates, increased storage costs, and broken storage equipment

Inactive Publication Date: 2016-09-21
SUZHOU JIN YUAN OIL MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Especially when it is used to store some corrosive goods, the storage equipment often breaks in a short time due to the corrosion of the steel plate, which increases the storage cost; High, often cause storage equipment to break in a short time

Method used

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  • A kind of anti-corrosion steel plate for shelf heavy beam and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] This embodiment is a kind of anti-corrosion steel plate used for the heavy beam of the shelf, the composition and mass percentage of the steel plate are: C: 0.7%, Mn: 0.1%, Si: 0.07%, P: 0.006%, S: 0.002 %, Nb: 0.043%, V: 0.07%, Ti: 0.5%, Al: 0.13%, N: 0.006%, H: 0.00020%, Cu: 0.07%, Cr: 3.7%, Mo: 0.43%, Lanthanum: 0.07 %, cerium: 0.03%, praseodymium: 0.05%, the balance is Fe and unavoidable impurities;

[0048] The first phase in the steel plate is ferrite, the second phase is pearlite, the volume percentage of the second phase from the surface to 1 / 4 thickness is 3.1%, and the volume percentage of the second phase from 1 / 4 thickness to the center is 7.3%, And there is no band structure; the average grain diameter of ferrite from the surface to 1 / 4 thickness of the steel plate is 5.5 μm, the average diameter of pearlite clusters is 4.0 μm, and the average grain diameter of ferrite from 1 / 4 thickness to the center is 6.0 μm, and the average diameter of pearlite cluster...

Embodiment 2

[0059] This embodiment is a corrosion-resistant steel plate used for heavy beams of shelves. The composition and mass percentage of the steel plate are: C: 0.8%, Mn: 0.2%, Si: 0.08%, P: 0.007%, S: 0.003%, Nb: 0.044%, V: 0.08%, Ti: 0.6%, Al: 0.14%, N: 0.001%, H: 0.0001%, Cu: 0.08%, Cr: 3.8%, Mo: 0.44%, Lanthanum: 0.08%, Cerium: 0.04%, Praseodymium: 0.06%, the balance is Fe and unavoidable impurities;

[0060] The first phase in the steel plate is ferrite, the second phase is pearlite, the volume percentage of the second phase from the surface to 1 / 4 thickness is 3.2%, and the volume percentage of the second phase from 1 / 4 thickness to the center is 7.4%, And there is no band structure; the average grain diameter of ferrite from the surface to 1 / 4 thickness of the steel plate is 5.6 μm, the average diameter of pearlite clusters is 4.1 μm, and the average grain diameter of ferrite from 1 / 4 thickness to the center is 6.1 μm, and the average diameter of pearlite clusters is 8.1 μm...

Embodiment 3

[0071] This embodiment is a corrosion-resistant steel plate used for heavy beams of shelves. The composition and mass percentage of the steel plate are: C: 0.9%, Mn: 0.3%, Si: 0.09%, P: 0.008%, S: 0.004%, Nb: 0.045%, V: 0.09%, Ti: 0.7%, Al: 0.15%, N: 0.002%, H: 0.00015%, Cu: 0.09%, Cr: 3.9%, Mo: 0.45%, Lanthanum: 0.09%, Cerium: 0.05%, Praseodymium: 0.07%, the balance is Fe and unavoidable impurities;

[0072] The first phase in the steel plate is ferrite, the second phase is pearlite, the volume percentage of the second phase from the surface to 1 / 4 thickness is 3.3%, and the volume percentage of the second phase from 1 / 4 thickness to the center is 7.5%, And there is no band structure; the average grain diameter of ferrite from the surface to 1 / 4 thickness of the steel plate is 5.7 μm, the average diameter of pearlite clusters is 4.2 μm, and the average grain diameter of ferrite from 1 / 4 thickness to the center is 6.2 μm, and the average diameter of pearlite clusters is 8.2 μ...

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Abstract

The invention discloses an anti-corrosion steel plate for a shelf heavy beam. The anti-corrosion steel plate is prepared from the following components: 0.7-0.9 percent of C, 0.1-0.3 percent of Mn, 0.07-0.09 percent of Si, 0.006-0.008 percent of P, 0.002-0.004 percent of S, 0.043-0.045 percent of Nb, 0.07-0.09 percent of V, 0.5-0.7 percent of Ti, 0.13-0.15 percent of Al, smaller than or equal to 0.006 percent of N, smaller than or equal to 0.00020 percent of H, 0.07-0.09 percent of Cu, 3.7-3.9 percent of Cr, 0.43-0.45 percent of Mo, 0.07-0.09 percent of lanthanum, 0.03-0.05 percent of cerium, 0.05-0.07 percent of praseodymium and the balance of Fe. The anti-corrosion steel plate is strong in corrosion resistance, high in plasticity and excellent in low-temperature toughness and has the transverse yield strength to be larger than or equal to 220 MPa.

Description

technical field [0001] The invention relates to a steel plate and a preparation method thereof, in particular to a corrosion-resistant steel plate used for a heavy beam of a shelf and a preparation method thereof. Background technique [0002] Storage equipment refers to the technical devices and tools that can meet the needs of storage and storage of goods. Storage equipment is the main symbol of the level of storage and logistics technology. Modern storage equipment reflects the development of modern storage and logistics technology. Shelves in storage equipment are relatively commonly used equipment. Due to the storage needs of special materials, the use conditions and environment of shelves are becoming more and more harsh, and the thickness of steel plates is required to be thicker and thicker. Correspondingly, the technology of steel plates used in storage equipment The requirements are also constantly increasing. Especially when it is used to store some corrosive goo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/28C21D8/02
Inventor 李琪
Owner SUZHOU JIN YUAN OIL MACHINERY
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