Europe Truck Cardan Drive Shaft Tube Yoke Proportion of Chemical Elements (%) Carbon C: 0.42～0.50; Chromium Cr: ≤0.25; Manganese Mn: 0.50～0.80; Nickel Ni: ≤0.25; Phosphorus P: ≤0.035; Sulfur S: ≤0.035; Silicon Si: 0.17～0.37 Mechanical Property σb\Mpa:≥600 σs\Mpa:≥355 δ5\%:≥16 ψ\%:≥40... https://www.driveshaft-parts.com...ive-shaft-tube-yoke.html