High Precision Seamless Tubing

Grade: 10#20#T11T12T22T91T92ST37, ST52

Standard: DIN2391, DIN2445, EN10305, ASTM A106, ASTM A179, NBK, GBK, BK, BKW, BKS

Outside Diameter: 8mm - 114.3mm

Producing Process: Cold-drawing/cold-rolling, Bright annealing, Polishing

Any other requirements, please talk with us

Grade Chemical Composition(%)
C. Max. Si. Max. Mn. P. Max. S. Max.
St 35 0.17 0.35 ≥ 0.40 0.025 0.025
St 45 0.21 0.35 ≥ 0.40 0.025 0.025
St 52 0.22 0.55 ≤ 1.60 0.025 0.025