通化硕抠家具有限公司

    高級(jí)檢索

    回火溫度對(duì)26CrMo4s/2鋼鉆桿用管性能的影響

    Influence by Tempering Temperature on Performance of 26CrMo4s/2 Drill Pipe Blank

    • 摘要: 測(cè)定了26CrMo4s/2鋼鉆桿用管在回火溫度上升時(shí)的相變點(diǎn),重點(diǎn)研究了不同回火溫度對(duì)材料的拉伸強(qiáng)度、夏比沖擊功的影響。研究結(jié)果表明,回火溫度的提高會(huì)導(dǎo)致強(qiáng)度指標(biāo)下降,塑性和韌性指標(biāo)上升,當(dāng)回火溫度超過(guò)620℃時(shí),材料強(qiáng)度降幅加大;26CrMo4s/2鋼熱處理后可以滿(mǎn)足ANSI/API Spec 5DP—2009標(biāo)準(zhǔn)中E、X、G等3個(gè)鋼級(jí)的要求;選擇合適的回火溫度后,沖擊功達(dá)到100J以上(7.5mm×10mm,21℃)。

       

      Abstract: The phase transition point of the 26CrMo4s/2 drill pipe blank is measured, when the tempering temperature is going up. The study focus is on the influence by variation of the tempering temperature on tensile strength and Charpy impact of the material. The study reveals that along with the increase of the tempering tem- perature, the strength of the material goes down, whereas its plasticity and toughness get up. And when the tempering temperature gets higher than 620 ℃, the strength of the material is getting down more obviously than before. After being heat treated properly, the 26CrMo4s/2 steel will be satisfactory to the requirements for the three steel grades, i.e., E, X and G as specified in ANSI/API Spec 5DP—2009. And after being tempered with appropriate temperature, impact value of the material will go up above 100 J(7.5 mm×10 mm, 21 ℃).

       

      • HTML全文

    /

    返回文章
    返回