High-strength corrosion-resistant stainless steel pipe fitting and machining process thereof

The invention discloses a high-strength corrosion-resistant stainless steel pipe fitting and a machining process thereof. The stainless steel pipe fitting is prepared from the following raw materials in percentage by mass: 0.03 to 0.05 percent of C, 14 to 16 percent of Cr, 8 to 10 percent of Mn, 0.8 to 1 percent of Si, less than or equal to 0.02 percent of P, less than or equal to 0.004 percent of S, 1 to 2 percent of Mo, 0.0001 to 0.002 percent of B, 4 to 5 percent of Ni, 0.03 to 0.08 percent of La and the balance of Fe and inevitable impurity elements. Under the component distribution, the stainless steel pipe fitting has excellent tensile strength and mechanical property. Meanwhile, the stainless steel pipe fitting is subjected to surface treatment, so that the surface strength and corrosion resistance of the stainless steel pipe fitting are improved. According to the high-strength corrosion-resistant stainless steel pipe fitting and the machining process thereof, the process design is reasonable, operatio