X80M管线钢热轧板卷取温度的优化  

Coiling Temperature Optimization of Hot-Rolled X80M Pipeline Steel Plate

作　　者：程政[1] 缪成亮[2] 朱腾威[2] 杨孝鹤[1] 徐海卫[1] 陈一[1] 

机构地区：[1]首钢京唐钢铁联合有限责任公司,唐山063200 [2]首钢技术研究院,北京100043

出　　处：《机械工程材料》2018年第3期33-37,共5页Materials For Mechanical Engineering

摘　　要：在卷取温度分别为300,350,400,450℃下对18.4mm×1 550mm规格的X80M管线钢板进行卷取,研究了卷取温度控制的稳定性以及卷取后钢板的显微组织和力学性能,并对卷取温度进行了优化。结果表明:随着卷取温度的升高,实测卷取温度的稳定性逐渐增大;在300~450℃卷取后,试验钢的显微组织均为针状铁素体,力学性能满足技术要求,且强度、低温韧性均有一定的富余量;优化后的卷取温度为380℃,在该温度卷取后试验钢的各项力学性能良好。An X80 Mpipeline steel plate with specification of 18.4 mm×1 550 mm was coiled at different coiling temperatures of 300,350,400,450℃,respectively.The control stability of the coiling temperature and the microstructure and mechanical properties of the coiled steel plate were studied.The coiling temperature was optimized.The results show that the stability of the measured coiling temperatures increased with the coiling temperature rising.The microstructure of the tested steel consisted of acicular ferrite after coiling at 300-450 ℃;the mechanical properties met the technical requirements,with a certain allowance of both strength and lowtemperature toughness.The optimal coiling temperature was 380 ℃.The tested steel coiled at this temperature had good mechanical properties.

关 键 词：X80管线钢 卷取温度 显微组织 力学性能 

分 类 号：TG335.5[金属学及工艺—金属压力加工]