Material used for casting automobile exhaust manifold

• Main Authors: TIAN ZHONGQING, LYU PENGZHAN, WANG QINGSONG, TIAN LONG, ZHANG SHUPING
• Format: Patent
• Language: Chinese; English
• Published: 11.07.2017
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention discloses a material used for casting an automobile exhaust manifold. The material comprises, by weight percent, 0.30%-0.50% of C, 1.0%-2.5% of Si, smaller than or equal to 2.0% of Mn, smaller than or equal to 0.04% of P, smaller than or equal to 0.03% of S, 24.0%-27.0% of Cr, 10.0%-11.5% of Ni, smaller than or equal to 0.5% of Mo, smaller than or equal to 0.60% of W, 0.6%-0.8% of Nb, smaller than or equal to 0.12% of V, smaller than or equal to 0.25% of Cu and the balance Fe. The material is suitable for being used in an environment with the temperature reaching up to 1100 DEG C and has good high-temperature-resisting performance, the material can be used for replacing a D5S high-nickel material to cast and manufacture the exhaust manifold, and meanwhile the production cost is reduced. 本发明公开种用于铸造汽车排气歧管的材料，按重量百分比计，由以下成分组成：C 0.30～0.50%、Si 1.0～2.5%、Mn ≤2.0%、P ≤0.04%、S ≤0.03%、Cr 24.0～27.0%、Ni 10.0～11.5%、Mo ≤ 0.5%、W≤ 0.60%、Nb 0.6～0.8%、V ≤ 0.12、Cu ≤ 0.25%，余量为Fe。该材料适用于温度高达1100℃的环境中，具有良好的耐高温性能。可以替代D5S高