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石油裂化管硬度指标
2019-7-16 11:22:16  来源:http://marvelfandom.com  作者:无锡钢动力钢铁有限公司

  石油裂化管硬度指标

  石油裂化管洛氏硬度试验同布氏硬度试验一样,都是压痕试验方法。不同的是,它是测量压痕的深度。洛氏硬度试验是当前应用很广的方法,其中HRC在钢管标准中使用仅次于布氏硬度HB。洛氏硬度可适用于测定由极软到极硬的石油裂化管众鑫棋牌下载材料,它弥补了布氏法的不是,较布氏法简便,可直接从硬度机的表盘读出硬度值。但是,由于其压痕小,故硬度值不如布氏法准确。

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