Low-carbon low-boron low-chromium alloy steel, and preparation method thereof

A carbon-low-boron, alloy steel technology, applied in the field of low-carbon, low-boron, low-chromium alloy steel and its preparation, can solve the problems of high brittleness, poor toughness, and easy damage of alloy steel, and achieve increased hardness, increased strength, Effect of preventing temper brittleness

Inactive Publication Date: 2018-12-07
LESHAN TAIGANG SUNKOS MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The manufacturing method of the high-strength and high-toughness alloy steel disclosed in this patent document is produced with medium carbon steel. Although the hardness is high, the toughness is poor, and the prepared alloy steel is relatively brittle. When used to beat pebbles, the alloy steel is easily damaged.

Method used

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  • Low-carbon low-boron low-chromium alloy steel, and preparation method thereof
  • Low-carbon low-boron low-chromium alloy steel, and preparation method thereof
  • Low-carbon low-boron low-chromium alloy steel, and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0031] Low-carbon, low-boron, low-chromium alloy steel is composed of the following raw materials in weight percentage:

[0032]

Embodiment 2

[0034] Low-carbon, low-boron, low-chromium alloy steel is composed of the following raw materials in weight percentage:

[0035]

[0036]

[0037] The low-carbon, low-boron, low-chromium wear-resistant alloy steel composed of the above components has the best wear resistance and impact toughness.

Embodiment 3

[0039] Low-carbon, low-boron, low-chromium alloy steel is composed of the following raw materials in weight percentage:

[0040]

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Abstract

The invention discloses a low-carbon low-boron low-chromium alloy steel, and a preparation method thereof, and belongs to the technical field of alloy steel manufacturing. According to the preparationmethod, low-carbon low-boron low-chromium materials are combined with cerium rare earth, vanadium, tungsten, copper, tantalum, cobalt, niobium, and the like, technical target value determination, material preparation, melting, sampling adjusting, casting moulding, and heat treatment are carried out so as to obtain the low-carbon low-boron low-chromium alloy steel at last; the hardness is HRC42-52, the impact energy is as high as 11 to 20 joules. The preparation method is capable of guaranteeing the certain hardness of the alloy steel, and at the same time, improving the impact resistance, thetoughness, and the wear resistance greatly.

Description

technical field [0001] The invention relates to the technical field of alloy steel manufacture, in particular to a low-carbon, low-boron, low-chromium alloy steel with high toughness and wear resistance and a preparation method thereof. Background technique [0002] Alloy steel is an iron-carbon alloy formed by adding an appropriate amount of one or more alloying elements to ordinary carbon steel. According to the different elements added and appropriate processing technology, special properties such as high strength, high toughness, wear resistance, corrosion resistance, low temperature resistance, high temperature resistance, and non-magnetic properties can be obtained. According to the content of alloy elements in steel, it can be divided into low alloy steel, medium alloy steel and high alloy steel. The main alloying elements of alloy steel are silicon, manganese, chromium, nickel, molybdenum, tungsten, vanadium, titanium, niobium, zirconium, cobalt, aluminum, copper, b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/44C22C38/46C22C38/42C22C38/48C22C38/50C22C38/52C22C38/54C22C38/02C22C38/04C22C38/06C22C33/04C21D6/00
CPCC22C38/44C21D6/004C21D6/005C21D6/007C21D6/008C22C33/04C22C38/005C22C38/008C22C38/02C22C38/04C22C38/06C22C38/42C22C38/46C22C38/48C22C38/50C22C38/52C22C38/54
Inventor 陈章华陈瑾昱张昌华
Owner LESHAN TAIGANG SUNKOS MACHINERY MFG
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