X70

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1.
Salt concentration difference macrocell corrosion of X70 steel in yellow pebble soil was studied by means of EIS and weight loss method.
利用电化学阻抗法和失重法，研究了X70钢在卵石黄泥土中的盐浓差宏电池腐蚀。
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2.
The relationship between deep desulfurization, controlling nitrogen and controlling inclusions of X70 pipeline steel were analyzed.
分析了X70低硫管线钢的深脱硫、控氮及夹杂物控制之间的关系。
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3.
It also looks forward to the application prospect of laser welding technology in pipeline welding of X70 pipeline steel.
展望了激光焊接技术在管道焊接中尤其X70管线钢时的应用前景。
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4.
The difference of the hot ductility of X65 and X70 pipeline casting blank is mainly discussed.
讨论了X65、X70管线钢铸坯不同温度区间高温延塑性的差异。
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5.
The results showed that corrosion process of X70 steel in weak acidic solution with SO2 was controlled by anode reaction.
结果表明，X70钢在含有SO2的弱酸性溶液中的腐蚀反应过程是受阳极控制的；
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6.
X70 pipeline steels, microalloyed steel and low carbon produced by TMCP process, possess high strength and good toughness.
X70管线钢是控轧控冷的低碳微合金钢，具有高强高韧性。
paper.pet2008.cn
7.
First, microstructure of four steels is observed by SEM. The results show that, X70 steel is composed by ferrite and pearlite structure;
首先，对四种钢的金相显微组织进行了观察，发现X70管线钢由铁素体、珠光体组成。
paper.pet2008.cn