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Quick Details

  • Standard: DIN, EN 10305-1, DIN 2391, ASTM A519 etc.
  • Standard2: DIN 2391, DIN EN 10305
  • Grade Group: Cr-Mo alloy, ST35-ST52
  • Grade: 15CrMo, 30CrMo, 34CrMo4, 35CrMo4, ST35, St35.4, St37, St37-2, ST37.4, St42-2, St45, St45-4, St52, St52.4, ST54
  • Thickness: 2 - 40 mm
  • Section Shape: Round
  • Outer Diameter(Round): 30 - 450 mm
  • Place of Origin: Hubei, China (Mainland)
  • Secondary Or Not: Non-secondary
  • Application: Mechanical Processing Purposes
  • Technique: Cold Rolled
  • Certification: UL
  • Surface Treatment: Bright
  • Special Pipe: Thick Wall Pipe
  • Alloy Or Not: Non-alloy
  • Brand: UST
  • Advantage: Alloy steel tube, Special specifications
  • Benefits: Good surface quality, Tight tolerances
  • Main markets: North and South American, South Africa, Europe, South East Asia, etc.
  • Production Technique: Cold Drawn, Cold Rolled, Hot rolled+Cold Drawn
  • Delivery Condition: Cold drawn, Cold rolled, Stress Relieved, Annealed, Normalized
  • Surface: Black, Smooth, Bright.
  • Keywords: Cold Finished Pipe Steel for Mechanical Parts

Packaging & Delivery

Packaging Details bundled and wrapped in plastic film and linen, or wooden case, or as per your requirement.
Delivery Time 10-25 days

High Precision Tube ST37.4 ST35 ST52 SAE 1020 1045 SAE 4140 4130 etc



High Precision Tube is used in automotive industry, and in the occasion where the high accuracy, brightness, cleanness of the tube are required.

Process:  Cold Drawn, Cold Rolled, honin, skiving, Hot rolled+Cold Drawn.

Standard: DIN2391. EN10305-1. GB3639.  ASTM A519, EN 10297 etc.

Steel Grade: ST35, ST37.4, St45, St52, E195, E235, E355, 30CrMo, 20Mn2, SAE 1010, 1020, 1030,1045, 4130, 4140, 8620, 4340, 52100 etc


Outer Diameter: 30-450 mm 

Wall Thickness:  2-40 mm

Length Random Length, Fixed Length, etc.

Dimension tolerance

I.D tolerance (mm)O.D tolerance (mm)I.D Roughness (µm)Straightness (mm/meter)

Delivery Condition: Cold drawn, Cold rolled, Stress Relieved,  Annealed( Bright Annealed, Spheroidize Annealed), Normalized, Quenched and Tempered.

Surface:  Black, Smooth, Bright.

Product Description


Package: bundled and wrapped in plastic film and linen, or wooden case, or as per your requirement.

Packaging & Shipping


Third Party inspection acceptable. such as SGS, BV etc.
Supplying financial support with usance L/C 180days after B/L date.

Our Services

Company Information


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