The D-level sucker rod has good performances as good flexibility ,good tensile stress-resistanceSpecificatin (in) Length (m) Mechnical performance Tensile Strength ó b Mpa Yield Point ó b Mpa 200mm Elongation Reduction Of area Airy impact toughness AKV J Fatigue strength ó 0.1 Mpa cyc CYG5/8 CYG3/4 CYG7/8 CYG1 7.62 8.0 8.5 9.14 793~965 620 10 50 60.8 400 1 × 10
