ASME SA-213M对正火回火态T22钢管硬度上限规定的合理性探讨

doi:10.13251/j.issn.0254-6051.2021.03.046

金属热处理 ›› 2021, Vol. 46 ›› Issue (3): 239-242.DOI: 10.13251/j.issn.0254-6051.2021.03.046

ASME SA-213M对正火回火态T22钢管硬度上限规定的合理性探讨

赖仙红^1,2, 曾辉^1,2, 杨华春^1,2, 张玮^1,2

1.东方电气集团东方锅炉股份有限公司, 四川自贡 643001;
2.机械工业高温高压材料与焊接工程实验室, 四川自贡 643001

收稿日期:2020-11-22 出版日期:2021-03-25 发布日期:2021-05-08
作者简介:赖仙红(1982—),男,高级工程师,硕士,主要研究方向为锅炉、压力容器金属材料应用及标准化,E-mail:laixh@dbc.com.cn

Reasonableness discussion on hardness upper limit of normalized and tempered T22 steel tubes specified in ASME SA-213M

Lai Xianhong^1,2, Zeng Hui^1,2, Yang Huachun^1,2, Zhang Wei^1,2

1. Dongfang Boiler Group Co., Ltd., Zigong Sichuan 643001, China;
2. Laboratory for High Temperature-High Pressure Material & Welding Engineering of China Machinery Industry Federation, Zigong Sichuan 643001, China

Received:2020-11-22 Online:2021-03-25 Published:2021-05-08

摘要/Abstract

摘要： 对T22钢管进行了不同参数的正火加回火模拟热处理试验。结果表明,正火加回火态T22钢管硬度很容易超过ASME SA-213M标准规定的硬度上限(163 HBW/170 HV/85 HRB),即便采取特定的热处理参数使其勉强降低到硬度上限之下,则球化组织又很难避免,认为应考虑将正火加回火态T22钢管的硬度上限进行适当提升。同时,也对提升幅度进行了讨论,建议将SA-213M中规定的正火加回火态T22钢管硬度上限由163 HBW/170 HV/85 HRB提升为179 HBW/190 HV/89 HRB。

关键词: T22钢, ASME SA-213M标准, 硬度上限, 探讨

Abstract: Simulated normalized and tempered tests with different parameters for T22 steel tubes were performed. The results show that it is very easy for hardness of normalized and tempered T22 steel tubes to exceed the hardness upper limit (163 HBW/170 HV/85 HRB) specified in ASME SA-213M standard, and it is difficult to avoid the spheroidizing microstructure even if the hardness constrainedly reduced to below the hardness upper limit according to special heat treatment parameters, and it is believed that the raising of hardness upper limit for normalized and tempered T22 steel tubes shall be considered. Meanwhile, the suitable raising extent of hardness upper limit is discussed, and further suggestions are that the hardness upper limit for normalized and tempered T22 steel tube specified in SA-213M should be raised from 163 HBW/170 HV/85 HRB to 179 HBW/190 HV/89 HRB.

Key words: T22 steel, ASME SA-213M standard, hardness upper limit, discussion

中图分类号:

TG142.1⁺2

赖仙红, 曾辉, 杨华春, 张玮. ASME SA-213M对正火回火态T22钢管硬度上限规定的合理性探讨[J]. 金属热处理, 2021, 46(3): 239-242.

Lai Xianhong, Zeng Hui, Yang Huachun, Zhang Wei. Reasonableness discussion on hardness upper limit of normalized and tempered T22 steel tubes specified in ASME SA-213M[J]. Heat Treatment of Metals, 2021, 46(3): 239-242.

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ASME SA-213M对正火回火态T22钢管硬度上限规定的合理性探讨

Reasonableness discussion on hardness upper limit of normalized and tempered T22 steel tubes specified in ASME SA-213M

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