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

An alloy steel, carbon and low boron technology, applied in the field of alloy steel, can solve the problems of difficult control, high process requirements, and difficult civilian promotion, and achieve the effects of easy process control, good uniformity and low smelting cost

Inactive Publication Date: 2018-12-04
LESHAN TAIGANG SUNKOS MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high-strength and high-toughness alloy steel disclosed in this patent document adopts a low-carbon multi-alloy ratio, which has high smelting costs, high difficulty in control, high process requirements, and high cost.

Method used

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

Examples

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Effect test

Embodiment 1

[0063] As a preferred embodiment of the present invention, with reference to the accompanying drawings, this embodiment discloses:

[0064] Low-carbon, low-boron, high-chromium alloy steel consists of the following raw materials in weight percentage:

[0065] Carbon 0.05%;

[0066] Silicon 1%;

[0067] Manganese 0.8%;

[0068] Phosphorus 0.01%

[0069] Sulfur 0.02%;

[0070] Chromium 8%;

[0071] Nickel 0.5%;

[0072] Molybdenum 0.1%;

[0073] Boron 0.03%;

[0074] Aluminum 0.1%;

[0075] Tin 0.05%;

[0076] Vanadium 0.3%;

[0077] Tungsten 0.1%;

[0078] Copper 0.05%;

[0079] Tantalum 0.005%;

[0080] Cobalt 0.05%;

[0081] Niobium 0.05%;

[0082] Ce 0.8%;

[0083] The rest is iron and unavoidable impurities.

Embodiment 2

[0085] As another preferred embodiment of the present invention, with reference to the accompanying drawings, this embodiment discloses:

[0086] The low-carbon, low-boron, high-chromium alloy steel is characterized in that it consists of the following raw materials by weight percentage:

[0087] Carbon 0.1%;

[0088] Silicon 2%;

[0089] Manganese 1%;

[0090] Phosphorus 0.02%

[0091] Sulfur 0.02%;

[0092] Chromium 10%;

[0093] Nickel 1%;

[0094] Molybdenum 0.3%;

[0095] Boron 0.15%;

[0096] Aluminum 0.2%;

[0097] Tin 0.12%;

[0098] Vanadium 0.5%;

[0099] Tungsten 0.5%;

[0100] Copper 0.15%;

[0101] Tantalum 0.01%;

[0102] Cobalt 0.1%;

[0103] Niobium 0.15%;

[0104] Ce 1%

[0105] Titanium 0.05%;

[0106] The rest is iron and unavoidable impurities.

Embodiment 3

[0108] As another preferred embodiment of the present invention, with reference to the accompanying drawings, this embodiment discloses:

[0109] The low-carbon, low-boron, high-chromium alloy steel is characterized in that it consists of the following raw materials by weight percentage:

[0110] Carbon 0.30%;

[0111] Silicon 3.0%;

[0112] Manganese 1.3%;

[0113] Phosphorus 0.03%

[0114] Sulfur 0.01%;

[0115] Chromium 13%;

[0116] Nickel 2.5%;

[0117] Molybdenum 0.8%;

[0118] Boron 0.25%;

[0119] Aluminum 0.3%;

[0120] Tin 0.2%;

[0121] Vanadium 1.0%;

[0122] Tungsten 1.5%;

[0123] Copper 0.3%;

[0124] Tantalum 0.015%;

[0125] Cobalt 0.15%;

[0126] Niobium 0.25%;

[0127] Cerium 2%

[0128] Titanium 0.08%;

[0129] The rest is iron and unavoidable impurities.

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Abstract

The invention discloses low carbon, low boron, and high chromium alloy steel and a preparation method thereof which relates to the technical field of alloy steel. The low carbon, low boron, and high chromium alloy steel includes, by weight, 0.05-0.30% of carbon, 1-3.0% of silicon, 0.8-1.3% of manganese, <0.04% of phosphorus, <0.04% of sulfur, 8-13% of chromium, 0.5-2.5% of nickel, 0.1-0.8% of molybdenum, 0.03-0.25% of boron, 0.1-0.3% of aluminum, 0.05-0.2% of tin, 0.3-1.0% of vanadium, 0.1-1.5% of tungsten, 0.05-0.3% of copper, 0.005-0.015% of tantalum, 0.05-0.15% of cobalt, 0.05-0.25% of niobium, 0.8-2.0% of cerium, 0-0.08% of titanium, with the balance being iron and unavoidable impurities. The alloy steel of the invention enables high toughness and impact resistance performance to be ensured, enables wear resistance and hardness to be improved, is easy to control in process, and is suitable for civilian use and promotion.

Description

technical field [0001] The invention relates to the technical field of alloy steel, and more specifically relates to a low-carbon, low-boron, high-chromium alloy steel suitable for civil use and popularization 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. [0003] 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, alu...

Claims

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Application Information

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IPC IPC(8): C22C38/02C22C38/04C22C38/34C22C38/44C22C38/54C22C38/06C22C38/46C22C38/42C22C38/48C22C38/52C22C38/50C22C33/04C21C7/06C21D1/18C21D6/00
CPCC21C7/0006C21C7/06C21D1/18C21D6/004C21D6/005C21D6/007C21D6/008C21D2211/002C21D2211/008C22C33/04C22C38/005C22C38/008C22C38/02C22C38/04C22C38/06C22C38/34C22C38/42C22C38/44C22C38/46C22C38/48C22C38/50C22C38/52C22C38/54Y02P10/20
Inventor 陈章华程精涛张昌华习红梅
Owner LESHAN TAIGANG SUNKOS MACHINERY MFG
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