The invention relates to high-strength 40CrB steel and a production method and application thereof, and relates to the technical field of steelmaking. The high-strength 40CrB steel comprises the following components in percentage by weight: 0.36 to 0.40 percent of C, 0.15 to 0.25 percent of Si, 0.80 to 0.90 percent of Mn, 1.05 to 1.10 percent of Cr, 0.005 to 0.015 percent of Ti, 0.0005 to 0.0020 percent of B, 0.0030 to 0.0070 percent of N, 0.020 to 0.030 percent of Al, less than or equal to 0.020 percent of P, 0.015 to 0.025 percent of S, less than or equal to 0.10 percent of Cu, less than or equal to 0.10 percent of Ni, less than or equal to 0.05 percent of Mo and the balance of Fe. According to the method, great difficulty is overcome in the technical aspect, and the components and the dosage of the steel are controlled and adjusted, so that the production cost of the steel is greatly reduced while the mechanical performance of the steel is enhanced.

    本申请涉及一种高强度40CrB钢及其生产方法和应用,涉及炼钢技术领域。按重量百分比计,所述高强度40CrB钢包括以下成分:C:0.36‑0.40%,Si:0.15‑0.25%,Mn:0.80‑0.90%,Cr:1.05‑1.10%,Ti:0.005‑0.015%,B:0.0005‑0.0020%,N:0.0030‑0.0070%,Al:0.020‑0.030%,P:≤0.020%,S:0.015‑0.025%,Cu:≤0.10%,Ni:≤0.10%,Mo:≤0.05%,其余为Fe。本申请在技术方面克服了很大难度,对钢材的成分及用量进行控制和调整,从而在增强钢材机械性能的同时,大大降低了钢材的生产成本。


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    Title :

    High-strength 40CrB steel and production method and application thereof


    Additional title:

    一种高强度40CrB钢及其生产方法和应用


    Contributors:
    HUA LINGDONG (author) / PI PENGFEI (author) / BAI CHELIGEER (author) / XU MINGJIE (author) / LI JUNFENG (author) / CHANG JIANDONG (author)

    Publication date :

    2023-08-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    C22C Legierungen , ALLOYS / B60B VEHICLE WHEELS , Räder für Fahrzeuge / C21C Weiterverarbeiten von Roheisen, z.B. Feinen, Herstellen von Schweißeisen oder Stahl , PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL / C21D Veränderung der physikalischen Struktur von Eisenmetallen , MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS



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