CN107937808A - 一种热轧h型钢及其生产工艺 - Google Patents

一种热轧h型钢及其生产工艺 Download PDF

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CN107937808A
CN107937808A CN201711163045.0A CN201711163045A CN107937808A CN 107937808 A CN107937808 A CN 107937808A CN 201711163045 A CN201711163045 A CN 201711163045A CN 107937808 A CN107937808 A CN 107937808A
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章阳
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ANHUI KINGYOUNG STRUCTURAL METAL WORK Co Ltd
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ANHUI KINGYOUNG STRUCTURAL METAL WORK Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

本发明公开了一种热轧H型钢及其生产工艺，其材料的化学成分的质量百分含量包括：碳0.08～0.13％、硅0.15～0.35％、锰1.25～1.45％、钒0.10～0.20％、铜0.01～0.02％、铬0.008～0.01％、氮≤0.012％、磷≤0.01％、硫≤0.01％、铌0.03～0.05％、铊0.03～0.05％、钋0.03～0.05％、铽0.02～0.04％、镍0.01～0.02％，余量为铁和杂质元素。本发明生产的H型钢合金含量较低，终轧温度高，减小了轧机的负荷和能耗，提高了生产效率。

Description

一种热轧H型钢及其生产工艺
技术领域
本发明涉及冶金技术领域，具体是一种热轧H型钢及其生产工艺。
背景技术
钢材随时间的延长而表现出强度提高，塑性和冲击韧性下降的现象，称为时效。完成时效变形的过程可达数十年。因时效而导致性能改变的程度称为时效敏感性。时效敏感性愈大的钢材，经过时效以后，其冲击韧性和塑性降低显著，对于承载动载荷的结构物，如桥梁，海上船体结构用钢等，应选用时效敏感性小的钢材。通常以钢材应变时效前后冲击韧性降低的百分比来衡量钢材对应变时效敏感的程度，称为应变时效敏感性系数。加工成一定尺寸的成品试样，经5％永久变形，在炉内均匀加热到250±10℃，并在此温度下保温1h(模拟人工加速时效处理)，空冷到室温，然后取拉伸变形标距内的一段加工成夏比V型缺口试样，然后与没有进行时效的试样在需要的试验温度下做冲击试验。最后测定应变时效前后H型钢冲击值的降低率，未经受规定应变并人工时效后冲击吸收功的平均。
发明内容
本发明提供了一种热轧H型钢及其生产工艺，以解决上述技术问题。
一种热轧H型钢，其材料的化学成分的质量百分含量包括：
碳0.08～0.13％、硅0.15～0.35％、锰1.25～1.45％、钒0.10～0.20％、铜0.01～0.02％、铬0.008～0.01％、氮≤0.012％、磷≤0.01％、硫≤0.01％、铌0.03～0.05％、铊0.03～0.05％、钋0.03～0.05％、铽0.02～0.04％、镍0.01～0.02％，余量为铁和杂质元素。
优选的，还包含质量百分含量：Als≥0.015％。
一种热轧H型钢的生产工艺，轧制工艺参数为：加热温度1200℃、初轧开轧温度1000℃、精轧开轧温度960℃、精轧终轧温度860℃；
冷却工艺参数为：轧件以110℃/s冷却速度冷却到700℃区间相变，再回温至780℃，最后H型钢自然冷却到室温。
本发明的有益效果：
本发明的有益效果是：本发明生产的H型钢合金含量较低，终轧温度高，减小了轧机的负荷和能耗，提高了生产效率。
具体实施方式
以下对本发明的实施例进行详细说明，但是本发明可以由权利要求限定和覆盖的多种不同方式实施。
以下通过具体实施例对本发明进行详细描述。
实施例1
一种热轧H型钢，其材料的化学成分的质量百分含量包括：
碳0.08％、硅0.15％、锰1.25％、钒0.10％、铜0.01％、铬0.008％、氮0.008％、磷0.006％、硫0.06％、铌0.03％、铊0.03％、钋0.03％、铽0.02％、镍0.01％、Als 0.015％，余量为铁和杂质元素，余量为铁和杂质元素。
一种热轧H型钢的生产工艺，轧制工艺参数为：加热温度1200℃、初轧开轧温度1000℃、精轧开轧温度960℃、精轧终轧温度860℃；
冷却工艺参数为：轧件以110℃/s冷却速度冷却到700℃区间相变，再回温至780℃，最后H型钢自然冷却到室温。
实施例2
一种热轧H型钢，其材料的化学成分的质量百分含量包括：
碳0.08％、硅0.15％、锰1.25％、钒0.15％、铜0.015％、铬0.009％、氮0.010％、磷0.006％、硫0.06％、铌0.03％、铊0.03％、钋0.03％、铽0.02％、镍0.01％、Als 0.015％，余量为铁和杂质元素，余量为铁和杂质元素。
一种热轧H型钢的生产工艺，轧制工艺参数为：加热温度1200℃、初轧开轧温度1000℃、精轧开轧温度960℃、精轧终轧温度860℃；
冷却工艺参数为：轧件以110℃/s冷却速度冷却到700℃区间相变，再回温至780℃，最后H型钢自然冷却到室温。
实施例3
一种热轧H型钢，其材料的化学成分的质量百分含量包括：
碳0.08％、硅0.15％、锰1.25％、钒0.20％、铜0.02％、铬0.01％、氮0.012％、磷0.006％、硫0.06％、铌0.03％、铊0.03％、钋0.03％、铽0.02％、镍0.01％、Als 0.015％，余量为铁和杂质元素，余量为铁和杂质元素。
一种热轧H型钢的生产工艺，轧制工艺参数为：加热温度1200℃、初轧开轧温度1000℃、精轧开轧温度960℃、精轧终轧温度860℃；
冷却工艺参数为：轧件以110℃/s冷却速度冷却到700℃区间相变，再回温至780℃，最后H型钢自然冷却到室温。
以上所述的本发明实施方式，并不构成对本发明保护范围的限定,任何在本发明的精神和原则之内所作的修改、等同替换和改进等，均应包含在本发明的权利要求保护范围之内。

Claims (3)

1.一种热轧H型钢，其特征在于，其材料的化学成分的质量百分含量包括：
碳0.08～0.13％、硅0.15～0.35％、锰1.25～1.45％、钒0.10～0.20％、铜0.01～0.02％、铬0.008～0.01％、氮≤0.012％、磷≤0.01％、硫≤0.01％、铌0.03～0.05％、铊0.03～0.05％、钋0.03～0.05％、铽0.02～0.04％、镍0.01～0.02％，余量为铁和杂质元素。
2.根据权利要求1所述的耐低温韧性H型钢，其特征在于，还包含质量百分含量：A l s≥0.015％。
3.一种如权利要求1或2所述的热轧H型钢的生产工艺，其特征在于：
轧制工艺参数为：加热温度1200℃、初轧开轧温度1000℃、精轧开轧温度960℃、精轧终轧温度860℃；
冷却工艺参数为：轧件以110℃/s冷却速度冷却到700℃区间相变，再回温至780℃，最后H型钢自然冷却到室温。
CN201711163045.0A 2017-11-21 2017-11-21 一种热轧h型钢及其生产工艺 Pending CN107937808A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110577852A (zh) * 2018-06-11 2019-12-17 河北津西钢板桩型钢科技有限公司 一种具有防锈功能的h型钢组成成分
CN112593152A (zh) * 2020-11-26 2021-04-02 安徽金阳金属结构工程有限公司 一种装配式建筑用高强度h型钢及其生产工艺

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CN103589951A (zh) * 2013-11-01 2014-02-19 内蒙古包钢钢联股份有限公司 大断面h型钢及其生产方法
CN104018073A (zh) * 2014-06-19 2014-09-03 马钢(集团)控股有限公司 一种耐低温韧性h型钢及其生产工艺
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CN104053806A (zh) * 2012-01-26 2014-09-17 杰富意钢铁株式会社 高强度热轧钢板及其制造方法
CN104831164A (zh) * 2015-06-03 2015-08-12 马钢(集团)控股有限公司 一种h型钢及其生产方法
CN105018861A (zh) * 2015-08-10 2015-11-04 山东钢铁股份有限公司 一种低成本正火轧制热轧h型钢及其制备方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104053806A (zh) * 2012-01-26 2014-09-17 杰富意钢铁株式会社 高强度热轧钢板及其制造方法
CN103589951A (zh) * 2013-11-01 2014-02-19 内蒙古包钢钢联股份有限公司 大断面h型钢及其生产方法
CN104018073A (zh) * 2014-06-19 2014-09-03 马钢(集团)控股有限公司 一种耐低温韧性h型钢及其生产工艺
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CN104831164A (zh) * 2015-06-03 2015-08-12 马钢(集团)控股有限公司 一种h型钢及其生产方法
CN105018861A (zh) * 2015-08-10 2015-11-04 山东钢铁股份有限公司 一种低成本正火轧制热轧h型钢及其制备方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110577852A (zh) * 2018-06-11 2019-12-17 河北津西钢板桩型钢科技有限公司 一种具有防锈功能的h型钢组成成分
CN112593152A (zh) * 2020-11-26 2021-04-02 安徽金阳金属结构工程有限公司 一种装配式建筑用高强度h型钢及其生产工艺

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