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研究了轧制工艺对不同成分的非调质油井管钢组织与性能的影响 ,并分析了不同组织对韧性的影响。结果表明 ,中碳铁素体—珠光体型非调质钢完全满足 N- 80油井管的要求 ,在 95 0～ 85 0℃大压下量终轧有利于获得较高的韧性
The effects of rolling technology on the microstructure and properties of non-tempering oil well steel with different compositions were studied. The effects of different structures on the toughness were also analyzed. The results show that medium-carbon ferrite-pearlite non-quenched and tempered steel fully meets the requirements of the N-80 oil well pipe. The finish rolling at a large pressure of 95 0-85 0 ° C is favorable for obtaining higher toughness