High-strength wear-resistant corrosion-resistant antimagnetic stainless steel

A high-strength, stainless steel technology, applied in the field of alloy materials, can solve problems such as strength and wear resistance not meeting the requirements of use, insufficient corrosion resistance, and affecting the appearance quality of the drum.

Inactive Publication Date: 2014-02-26
LESHAN LIDUN CAST STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the strength and wear resistance of this material cannot meet the requirements during use, especially when working in a marine environment, its corrosion resistance is significantly insufficie

Method used

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  • High-strength wear-resistant corrosion-resistant antimagnetic stainless steel

Examples

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Example Embodiment

[0058] Example one:

[0059] 1. Processing corrosion-resistant and anti-magnetic steel: add scrap steel and pig iron to the melting furnace to heat up and melt. The melting furnace is an intermediate frequency induction furnace. The melting temperature is generally around 1450°C-1550°C. After fully melting (20 minutes before tapping), go to the melting furnace Add nickel plate, ferromanganese, ferrochrome, ferromolybdenum, ferrovanadium and ferroniobium in sequence, and the diameter of the material block is preferably 50-80mm. The mass percentage control of the above chemical components is as follows: C: 0.25%, Si: 0.70%, Mn: 0.50%, Cr: 17.00%, Ni: 11.00%, Mo: 2.00%, V: 0.45%, Nb: 0.10%. After melting, when the furnace temperature reaches 1550-1580℃, deoxidize, dehydrogenate, and denitrify. The deoxidizer adopts aluminum wire and Si-Ca alloy. The deoxidizer is pressed to the depth of the furnace, and then ferro-titanium (with a diameter of 3 -5mm is appropriate) Ti: 0.13%, the ...

Example Embodiment

[0063] Embodiment two:

[0064] 1. Processing corrosion-resistant and anti-magnetic steel: add scrap steel and pig iron to the melting furnace to heat up and melt. The melting furnace is an intermediate frequency induction furnace. The melting temperature is generally around 1450°C-1550°C. After fully melting (20 minutes before tapping), go to the melting furnace Add nickel plate, ferromanganese, ferrochrome, ferromolybdenum, ferrovanadium and ferroniobium in sequence, and the diameter of the material block is preferably 50-80mm. The mass percentage control of the above chemical components is as follows: C: 0.35%, Si: 1.00%, Mn: 1.50%, Cr: 19.00%, Ni: 13%, Mo: 2.5%, V: 0.55%, Nb: 0.15%, melting After cleaning, when the furnace temperature reaches 1550-1580°C, deoxidation, dehydrogenation, and denitrification are required. Aluminum wire and Si-Ca alloy are used as the deoxidizer. The deoxidizer is pressed to the depth of the furnace, and then ferro-titanium (with a diameter of 3 ...

Example Embodiment

[0068] Embodiment three:

[0069] 1. Processing corrosion-resistant and anti-magnetic steel: add scrap steel and pig iron to the melting furnace to heat up and melt. The melting furnace is an intermediate frequency induction furnace. The melting temperature is generally around 1450°C-1550°C. After fully melting (20 minutes before tapping), go to the melting furnace Add nickel plate, ferromanganese, ferrochrome, ferromolybdenum, ferrovanadium and ferroniobium in sequence, and the diameter of the material block is preferably 50-80mm. The mass percentages of the above chemical components are controlled as follows: C: 0.32%, Si: 0.85%, Mn: 1.20%, Cr: 18.50%, Ni: 12.00%, Mo: 2.32%, V: 0.50%, Nb: 0.13%. After melting, when the furnace temperature reaches 1550-1580℃, deoxidation, dehydrogenation and denitrification are required. Aluminum wire and Si-Ca alloy are used as the deoxidizing agent. The deoxidizing agent is pressed to the depth of the furnace, and then ferro-titanium (diamet...

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Abstract

The invention discloses high-strength wear-resistant corrosion-resistant antimagnetic stainless steel belonging to the field of alloy materials. The stainless steel comprises the following components in percentage by weight: 0.25-0.35% of C, 0.7-1.00% of Si, 0.50-1.50% of Mn, 17.00-19.00% of Cr, 11.00-13.00% of Ni, 2.00-2.50% of Mo, 0.45-0.55% of V, 0.13-0.18% of Ti, 0.10-0.15% of Nb, 0.13-0.18% of RE and 61.59-67.74% of Fe. The stainless steel disclosed by the invention is new non-magnetic steel which is non-magnetic and resistant to marine corrosion and has high strength and hardness.

Description

technical field [0001] The invention belongs to the field of alloy materials, and in particular relates to materials for offshore oil exploration, in particular to marine corrosion-resistant and anti-magnetic steel for offshore oil exploration drilling vehicle drums. Background technique [0002] At present, the rollers of oil industry logging trucks, logging skids and other equipment at home and abroad are all made of ZG3Mn19Cr4 non-magnetic steel. The smelting and processing technology of non-magnetic steel is very mature in China. However, the strength and wear resistance of this material cannot meet the requirements during use, especially when working in a marine environment, its corrosion resistance is significantly insufficient, which not only affects the appearance quality of the drum, but also greatly affects the quality of the drum. service life, leading to an increase in the replacement frequency of logging truck drums. Contents of the invention [0003] The pur...

Claims

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Application Information

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IPC IPC(8): C22C38/50
Inventor 马玉川
Owner LESHAN LIDUN CAST STEEL
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