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Precision Steel Tubes

Precision Steel Tubes

Grace BaoSteel is a professional manufacturer and exporter of steel pipe materials. The company specialized in steel tubes, which holds the factories of Seamless Steel Tubes with Carbon and Alloy Steel Grade, Welded Precision Steel Tubes, DOM Steel Tubes, and Seamless & Welded Alloy Steel Grade.
Our tube mill is based in China, India & Malaysia. What’s unique about us as a manufacturer is that we have the capability to manufacture both precision seamless and welded tubes, in a wide range of Heat Exchanger Tubes, Drawn Over Mandrel Tubes (DOM), and Hydraulic Tubes. This gives our customers great product flexibility with the choice between straight lengths. Whatever application you have in mind, we’ll do our utmost to meet and surpass your expectations.


Bright Annealed/Semi-Bright Tubes

Specification Grades
DIN: ST-35, ST-45, ST-52, ST-30Al ST-37, ST-44, ST-52 ST-37.4, ST-44.4, ST-52.4
EN: E 215, E-235, E-355, E-255 E 215, E-235, E-355 P195 (TR 1, TR 2), P235 (TR 1, TR 2)
JIS G3445: STKM 11A, 12(A, B, C), 13(A, B, C), 14(A,B,C), 15(A,C), 16(A,C)
IS: CDS-1, CDS-2, CDS-3, CDS-4, CDS-5 CDS-160, CDS-210, CDS-240, CDS-310, CDS-370, CDS-430, CDS-540
ASTM A519: 1008, 1009, 1010, 1012, 1015, 1016, 1017, 1018, 1019, 1020, 1021, 1025, 1026, 1030, 1033, 1035, 1040, 1045

Dimensions of standard precision tubes

  • OUTER DIAMETER (OD) 4.0 – 125.0 mm (1/4 – 4 3/4)
  • WALL THICKNESS (WT)  0.5 – 50.0 mm (0,020 – 0,454)

Products Application:

  • Oil Cylinders
  • Air Cylinder
  • Automotive Cylinder Liners
  • Boilers, Pressure Vessels
  • Shell & Heat Exchangers
  • Jack Lifting
  • Telescopic Systems
  • Pneumatic Cylinders
  • Agricultural Machineries
Our steel pipes cover the following ranges:
  • Seamless Precision Steel Pipes
  • Welded Precision Steel Pipes, with DOM production
  • Seamless Heat Exchanger Steel Pipe
  • Seamless Boiler Steel Pipes
  • Seamless Structural Steel Pipes
  • Seamless Mechanical Steel Pipes
  • Seamless Alloy Steel Tubes & Pipes