High-strength non-quenched and tempered steel for automobile front axle and production method thereof

CN117626118BActive Publication Date: 2026-07-24SHANDONG IRON & STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG IRON & STEEL CO LTD
Filing Date
2023-10-27
Publication Date
2026-07-24

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Abstract

The application belongs to the technical field of steel metallurgy, and particularly relates to a high-strength non-quenched and tempered steel for automobile front axle and a production method thereof. The high-strength non-quenched and tempered steel for automobile front axle has the following chemical components and mass percentages: C: 0.23-0.28%, Si: 0.6-0.8%, Mn: 1.8-2.1%, Cr: 0.80-1.20%, Nb: 0.02-0.03%, Ti: 0.02-0.03%, Al: 0.010-0.030%, B: 0.004-0.006%, P: <=0.025%, S: 0.045-0.065%, lanthanide: 0.0003-0.0005%, N: 0.009-0.0130%, and the rest is Fe and inevitable impurities. The high-strength non-quenched and tempered steel for automobile front axle has low alloy cost of components, has cost advantages, and is beneficial to large-scale popularization and application.
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Citation Information

Patent Citations

  • High-strength non-quenched and tempered steel front axle for heavy-duty vehicles and its manufacturing process

    CN115074634B

  • High strength hot forged non-heat treated steel having excellent fatigue limit ratio and toughness

    JP2008127595A