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High-strength saw blade steel and production method thereof

A production method and strength technology, applied in the field of metallurgy and metal materials

Pending Publication Date: 2022-05-10
BAOTOU IRON & STEEL GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is currently impossible to meet the above multiple needs at the same time.

Method used

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  • High-strength saw blade steel and production method thereof
  • High-strength saw blade steel and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Chemical Composition of Finished Steel

[0036] Table 9 Chemical Composition %

[0037]

[0038] Rail properties: the structure is pearlite; the hardness is 304HB; the mechanical properties are: the tensile strength Rm is 1042MPa, the yield strength Rp0.2 is 698MPa, and the elongation A is 12.5%.

Embodiment 2

[0040] Chemical Composition of Finished Steel

[0041] Table 10 Chemical Composition of Rails %

[0042]

[0043] Rail properties: the structure is pearlite; the tread hardness is 318HB; the mechanical properties are: the tensile strength Rm is 1184MPa, the yield strength Rp0.2 is 732MPa, and the elongation A is 14%.

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Abstract

The invention discloses high-strength steel for saw blades. The high-strength steel comprises the following chemical components in percentage by weight: 0.74-0.81% of C, 0.55-0.75% of Si, 0.80-1.00% of Mn, 0.04-0.12% of V, less than or equal to 0.01% of Al, less than or equal to 0.01% of P, less than or equal to 0.01% of S and the balance of Fe. P: < = 0.040%, and S: < = 0.040%; and the balance of Fe and inevitable impurities thereof. The invention further discloses a production method. The high-strength saw blade steel has the advantages of being high in hardness and strength, high in strength, good in toughness and plasticity, low in cost and the like.

Description

technical field [0001] The invention relates to the fields of metallurgy and metal materials, in particular to a high-strength saw blade steel and a production method thereof. Background technique [0002] Steel for saw blades requires general steel to have high hardness and strength, and has the advantages of high strength, good toughness and plasticity, and low cost. However, it is currently impossible to meet the above multiple requirements at the same time. Contents of the invention [0003] The purpose of the present invention is to provide a high-strength steel for saw blades and its production method, with hardness ≥ 280HB, tensile strength ≥ 980MPa, elongation ≥ 10%, and no precious metal elements such as Cr, which have high strength, ductility and plasticity. Good, low cost and other advantages. [0004] In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions: [0005] A high-strength sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/06C22C38/12C22C33/06B22D11/00C21C7/00C21C7/06
CPCC22C38/02C22C38/04C22C38/06C22C38/12C22C33/06B22D11/001C21C7/0006C21C7/06C21C7/0075
Inventor 郑瑞边影苏航王慧军
Owner BAOTOU IRON & STEEL GRP