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Hydrogen sulfide corrosion resistant low alloy material as well as preparation method and application thereof

A hydrogen sulfide-resistant, low-alloy technology, applied in metal rolling, metal rolling, metal processing equipment, etc., can solve problems such as poor performance, and achieve the effect of improving corrosion resistance, low production cost, and good corrosion resistance

Pending Publication Date: 2022-02-25
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to aim at the anti-H 2 The problem of poor corrosion performance of S provides an anti-H 2 S-corroded low-alloy material and its preparation method and application

Method used

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  • Hydrogen sulfide corrosion resistant low alloy material as well as preparation method and application thereof
  • Hydrogen sulfide corrosion resistant low alloy material as well as preparation method and application thereof
  • Hydrogen sulfide corrosion resistant low alloy material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] an anti-H 2 Low-alloy material corroded by S surface, the composition by mass percentage is: C 0.05%, Si0.22%, Mn 0.9%, Mo 0.22%, Al 0.02%, P 0.004, S 0.002%, Ti 0.03, Nb 0.03 , W0.03, the rest is Fe.

[0033] The continuous casting slab smelted in the blast furnace is transported to the heating furnace by means of hot charging and hot delivery for reheating. The heating temperature is 1160°C, and the temperature is kept at this temperature for 65 minutes. After heating, the continuously cast slab is transported to the high-speed wire rod rolling unit for hot rolling experiment by conveying rollers, and finally rolled into an intermediate billet with a circular cross section. The initial rolling temperature is 1120°C, and the final rolling temperature is 854°C. The wire rod coming out of the high-speed wire rod rolling mill is accelerated cooling with high-speed water, and the final water cooling temperature is 805°C. Subsequently, accelerated air is used for cooling,...

Embodiment 2

[0038] an anti-H 2 Low-alloy material corroded by S surface, the composition by mass percentage is: C 0.06%, Si0.23%, Mn 0.9%, Mo 0.22%, Al 0.02%, P 0.004, S 0.002%, Ti 0.07, Nb 0.05 , W0.05, the rest is Fe.

[0039]The continuous casting slab smelted in the blast furnace is transported to the heating furnace by means of hot charging and hot delivery for reheating. The heating temperature is 1178°C, and the temperature is kept at this temperature for 70 minutes. After heating, the continuous casting slab is transported to the high-speed wire rod rolling unit for hot rolling experiment by conveying rollers, and finally rolled into an intermediate billet with a circular cross section. The initial rolling temperature is 1130°C, and the final rolling temperature is 860°C. The wire rod coming out of the high-speed wire rod rolling mill is accelerated cooling with high-speed water, and the final water cooling temperature is 810°C. Subsequently, accelerated air is used for cooling,...

Embodiment 3

[0044] an anti-H 2 Low-alloy material corroded by S surface, the composition by mass percentage is: C 0.08%, Si0.25%, Mn 1%, Mo 0.25%, Al 0.02%, P 0.005, S 0.002%, Ti 0.09, Nb 0.07 , W 0.05, the rest is Fe.

[0045] The continuous casting slab smelted in the blast furnace is transported to the heating furnace for reheating by means of hot charging and hot delivery. The heating temperature is 1190 ° C, and the temperature is kept at this temperature for 72 minutes. After heating, the continuously cast slab is transported to the high-speed wire rod rolling unit for hot rolling experiment by conveying rollers, and finally rolled into an intermediate billet with a circular cross section. The initial rolling temperature is 1160°C, and the final rolling temperature is 875°C. The wire rod coming out of the high-speed wire rod rolling mill is accelerated cooling with high-speed water, and the final water cooling temperature is 815°C. Subsequently, accelerated air is used for cooling...

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Abstract

The invention discloses a hydrogen sulfide corrosion resistant low alloy material which comprises the following components in percentage by mass: 0.04-0.12% of C, 0.2-0.3% of Si, 0.8-1.1% of Mn, 0.2-0.3% of Mo, 0.01-0.04% of Al, less than or equal to 0.01% of P, less than or equal to 0.005% of S, 0.02-0.2% of Ti, 0.01-0.1% of Nb, 0.01-0.1% of W and the balance of Fe, and the total mass percentage being 100%. The microstructure of the material is tempered sorbite and carbide. The low alloy material shows excellent surface H2S corrosion resistance, and is low in comprehensive cost, simple in preparation process and high in feasibility. The invention further discloses a preparation method and application of the H2S corrosion resistant low alloy material.

Description

technical field [0001] The invention belongs to the technical field of metal materials and metallurgy, in particular to an anti-H 2 S-corroded low-alloy materials and their preparation methods and applications. Background technique [0002] Climate change is one of the important challenges facing mankind. Since the Industrial Revolution, human activities have burned a large amount of fossil energy and emitted a large amount of CO 2 gases into the atmosphere, thereby causing climate change. Carbon peaking refers to the process of the carbon emissions of countries, cities, enterprises and other entities in the world from rising to falling, and the highest point of carbon emissions is the carbon peak. Most developed countries have reached their carbon peaks, and their carbon emissions have entered a downward path. CCS technology, as a kind of technology that focuses on the research and development of separation, capture, transportation and storage of carbon dioxide, has rece...

Claims

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Application Information

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IPC IPC(8): C22C38/02C22C38/04C22C38/06C22C38/12C22C38/14C22C33/04C21D9/00B21B1/16B21B1/46B21B37/74B21B45/02B21B45/04
CPCC22C38/02C22C38/04C22C38/06C22C38/12C22C38/14C22C33/04C21D9/0068B21B1/463B21B37/74B21B45/0215B21B45/04B21B1/163C21D2211/009C21D2211/004B21B2045/0212
Inventor 刘珍光王一鸣潘楠郑传波
Owner JIANGSU UNIV OF SCI & TECH
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