PSL2 X65Q管線用無縫鋼管力學性能分析

Analysis of Mechanical Properties of PSL2 X65Q Seamless Steel Linepipe

摘要: 對PSL2 X65Q管線用無縫鋼管產(chǎn)品的拉伸性能、沖擊性能、硬度及相關(guān)性能試驗數(shù)據(jù)進行了統(tǒng)計和分析。分析認為：PSL2 X65Q管線用無縫鋼管具有屈服強度波動范圍?。ā?00 MPa）、屈強比低（≤0.89）、塑性高、韌性好、硬度低、抗腐蝕性能好等特點，在滿足海洋管線苛刻要求的同時，可適用于抗大變形管線和卷管施工方式管線的生產(chǎn)。

Abstract: Conducted are statistics and analysis of experimental research data of PSL2 X65Q seamless steel linepipes as collected over the recent years, involving tensile property, impact property and hardness, etc.The result shows that the PSL2 X65Q seamless steel linepipe features small yield strength fluctuation range(≤ 100 MPa), low yield ratio(≤ 0.89), high plasticity, fine toughness, low hardness and satisfactory corrosion resistance, etc., being in compliance with the stringent requirements for marine pipeline, and being suitable for the anti-large deformation pipeline, and pipe-laying operation with coiling method.