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HB360-level wear-resistant steel plate and preparation method thereof

A wear-resistant steel plate and a manufacturing method technology, applied in the field of wear-resistant steel, can solve the problems of unsuitability for welding, limit the wide application of wear-resistant steel, etc., and achieve the effects of good welding performance, excellent strength and toughness, and improved weldability.

Active Publication Date: 2013-07-10
BAOSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Some existing wear-resistant steel patents, such as Chinese patents CN1132264A, CN1189542A, CN1385549A, CN1865481A and CN1132263A, are all high-silicon and high-manganese composition systems, and contain more alloy elements, which are not suitable for welding, which limits the wear-resistant steel. Wide application in industry

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  • HB360-level wear-resistant steel plate and preparation method thereof
  • HB360-level wear-resistant steel plate and preparation method thereof
  • HB360-level wear-resistant steel plate and preparation method thereof

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Embodiment Construction

[0042] The technical solution of the present invention will be further elaborated below in conjunction with specific examples. It should be clear that these examples are only used to describe the specific implementation of the present invention, and are not intended to constitute any limitation on the protection scope of the present invention.

[0043] The wear-resistant steel plate of the following examples 1-10 and the steel plate of comparative example 1, the weight percent of its chemical composition is as shown in table 1; The manufacture method of the wear-resistant steel plate of embodiment 1-10 and the steel plate of comparative example 1 is: The corresponding smelting raw materials are carried out in sequence as follows: smelting→casting→heating→rolling→quenching→tempering, control the quality of the chemical elements of the steel plate in each embodiment and comparative example 1 (comparative example 1 is the embodiment in the patent CN1865481A). Distribution ratio; w...

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Abstract

The invention discloses an HB360-level wear-resistant steel plate and a preparation method thereof. The HB360-level wear-resistant steel plate comprises the following components in percentage by weight: 0.08%-0.20% of C, 0.10%-1.00% of Si, 1.00%-2.00% of Mn, not more than 0.015% of P, not more than 0.010% of S, not more than 1.20% of Cr, not more than 0.80% of Mo, not more than 1.00% of Ni, not more than 0.080% of Nb, 0.010%-0.100% of Al, 0.0005%-0.0040% of B, 0.005%-0.050% of Ti, 0.0010%-0.0080% of Ca, not more than 0.080% of N, not more than 0.0080% of O, not more than 0.0004% of H and the balance of Fe and inevitable impurities, wherein (Cr / 5+Mn / 6+50B) is not less than 0.20% and not more than 0.55%, (Mo / 3+Ni / 5+2Nb) is not less than 0.02% and not more than 0.45%, (Al+Ti) is not less than 0.01% and not more than 0.13%. The tensile strength of the steel plate is 1100MPa-1400MPa, the elongation of the steel plate is 14%-16%, the Brinell hardness of the steel plate is 360HB-440HB, the Charpy longitudinalV-shaped longidutional impact power at -40 DEG C is 80J-120J. The steel plate obtained by the components through each thermal treatment process is high in strength hardness, good in flexibility, easy to weld, excellent in mechanical machining performances and suitable for easy-wearing components in various mechanical devices.

Description

technical field [0001] The present invention relates to wear-resistant steel, in particular to a HB360 wear-resistant steel plate and its manufacturing method; its mechanical properties: tensile strength is 1100-1400MPa, elongation is 14-16%, Brinell hardness is 360-440HBW, -40℃ Charpy V-shaped longitudinal impact energy is 80-200J. Background technique [0002] Wear-resistant steel plates are widely used in mechanical products such as engineering, mining, agriculture, cement production, ports, electric power and metallurgy that require high strength and high wear resistance due to extremely harsh working conditions. Such as bulldozers, loaders, excavators, dump trucks and grabs, stackers and reclaimers, feeding bending structures, etc. [0003] Traditionally, austenitic high manganese steel is generally used to produce wear-resistant parts. Austenitic high-manganese steel can undergo strain-induced martensitic transformation under large impact loads to improve its wear re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/14C22C38/54C22C38/58C22C33/04C21D8/02
Inventor 李红斌姚连登阎继东
Owner BAOSHAN IRON & STEEL CO LTD
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