Cold Drawn Precision Tube Chemical Composition:
Carbon (C): 0.10~0.15, Silicon (Si): 0.17~0.37, Manganese (Mn): 1.10~1.60, Sulfur (S): ≤0.035, Phosphorus (P): ≤0.035, Chromium (Cr): 0.90~1.30, Vanadium (V): 0.03~0.06, Molybdenum (Mo): 0.32~0.40, Boron (B): 0.002~0.006.
Cold Drawn Precision Tube Mechanical Properties:
Tensile Strength σb (MPa): 868 Yield Strength σ0.2 (MPa): 713 Elongation δ5 (%): 17 Elongation δ10 (%): 11 Section Reduction ψ (%): 62 Impact Toughness αku (J/cm2): 5 Sample Size: Certain material.
Cold DrawnPrecision TubeHeat Treatment Standards and Microstructure: Heat Treatment Standards: Normalizing at 900℃ and tempering at 600℃. Microstructure: Tempered Bainite + a small amount of tempered Sorbite.