ST35.8 seamless steel pipe belongs to cold rolled precision tube. Precision tube is a kind of seamless steel tube with high precision and high brightness produced by cold drawing or cold rolling process. The internal and external diameter of ST35.8 seamless steel pipe can be accurate to within 0.2mm. When the bending and torsional strength are the same, the weight of precision tube is lighter.

The chemical composition of ST35.8 seamless steel pipe:
Carbon (C) 0.17, Silicon (Si) 0.10-0.35, Manganese (Mn) 0.4-0.8, Phosphorus (P) ≤ 0.02, Sulfur (S) ≤ 0.025, Nickel (Ni) ≤--, Chromium (Cr) ≤--, Copper (Cu) ≤--, Molybdenum (Mo) --, vanadium (V)--.

The mechanical properties of ST35.8 seamless steel pipe:
ST35.8 seamless steel pipe tensile strength: 360-480 MPA
ST35.8 seamless steel pipe yield strength: ≥225-235 MPA
ST35.8 seamless steel pipe elongation: ≥25 %

ST35.8 seamless steel pipe is used to manufacture mechanical structure, hydraulic equipment, auto parts, steel sleeve, and also used to produce all kinds of conventional weapons, barrels, shells, etc.