In the modern industrial field, the application of high-performance alloy steel pipe is more and more extensive, of which 10Cr9Mo1VNbN alloy steel pipe with its unique performance characteristics, plays an irreplaceable role in a number of key areas. This article will introduce the material characteristics, performance advantages, application fields and manufacturing process of 10Cr9Mo1VNbN alloy steel pipe in detail, so that readers can have a more comprehensive understanding of this high-performance material.
10Cr9Mo1VNbN Alloy steel pipe 10Cr9Mo1VNbN Seamless steel pipe for high pressure boilers
Implementation standard: GB/T5310 seamless steel pipe for high-pressure boilers
Chemical composition of 10Cr9Mo1VNbN alloy steel pipe: Carbon: 0.07~0.14, Silicon: 0.20~0.50, manganese: 0.30~0.60, Chromium: 8.0~9.5, molybdenum: 0.85~1.05, vanadium: 0.18~0.25, nickel: ≤0.40, aluminum: ≤0.040, Copper: ≤0.20, niobium :0.06~0.10, nitrogen: 0.30~0.070, phosphorus: no more than 0.020, sulfur no more than 0.010
Mechanical properties: tensile strength ≥585, yield strength >415, elongation after fracture: longitudinal >20, transverse >18, impact work: longitudinal >40, transverse >27, Brinell hardness <250, Vickers hardness <265, Rockwell hardness <25
Product specifications: Outer diameter 21.3mm~762mm, wall thickness: 2.0~150mm
The product shall comply with: TSG D7002 pressure pipeline element type test rules.
Production method: hot rolling, cold drawing, forging, steel pipe to heat treatment state delivery: normalizing and tempering: normalizing temperature 1040 ℃ ~ 1080℃; Tempering temperature 750℃ ~ 780 ℃. The steel pipe with wall thickness >70mm can be quenched and tempered, and the quenching temperature is not lower than 1040℃. Tempering temperature 750 ℃ ~ 780℃
