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Quick Details

  • Standard: DIN
  • Standard2: DIN 2391, DIN EN 10305
  • Grade Group: ST35-ST52
  • Grade: ST35, ST37.4, St45, St52
  • Thickness: 0.5 - 40 mm
  • Section Shape: Round
  • Outer Diameter(Round): 6 - 426 mm
  • Place of Origin: Jiangsu, China (Mainland)
  • Secondary Or Not: Non-secondary
  • Application: Structure Pipe
  • Technique: Cold Drawn
  • Certification: UL
  • Surface Treatment: Optional
  • Special Pipe: Thick Wall Pipe
  • Alloy Or Not: Non-alloy
  • Production Technique: Cold Drawn, Cold Rolled
  • Cross-sectional shape: Round, oval, square, hexagon, octagon, plum blossom, etc
  • Delivery Condition: BK, BKW, BKS, GBK NBK
  • Surface: Black, Smooth, Bright.
  • Length: Not more than 12 m
  • Advantage: Alloy steel tube, Special specifications
  • Keywords: Precision Steel Tube
  • Brand: UST
  • Main Markets: North and South American, Europe, South East Asia, etc.
  • Skype: samsonhuang22

Packaging & Delivery

Packaging Details Hexagonal bundles of max 3,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips.
Delivery Time 10-25 days

Din 2391 Seamless Precision Steel Tube


Specializing in Custom Sizes and Shapes

cold drawn(or cold finished) mechanical tubing possesses exceptional strength-to-weight ratios, excellent surface quality and dimensional accuracy, and is available in carbon and alloy grades to meet your varying mechanical properties.

Every order we produce is custom made based on your specifications and requirements, and we offer carbon as well as alloy grades. Some of our most popular grades are the 10XX and 15XX carbon as well as 41XX, 43XX and 86XX alloy. Our expert team can also develop custom chemistries to fit your specific application.



Our Precision Steel Tube is available in a wide variety of shapes, including round, square and hexagon, and can be ordered as:

 Outside Diameter x Wall thickness.

 Inside Diameter x Wall thickness. 

 Outside Diameter x Inside Diameter.

 Nominal Wall.

 Minimum Wall Special tolerances are available.


MST produces mechanical tubes for many industries, including: 

 Automotive, Transportation and Heavy Truck.

 Aerospace and Aircraft.

 Heavy Equipment and Agriculture.

 OCTG Mining and Construction. 


Our Advantages:

1. Large Inventory.

2. Non-standard sizes and made-to-order.

3. Economical Pricing.

4. Quality confirming to International Standards.

5. Material Test Certificates for Quality Assurance.

6. Technical Qualified After Sales.

7. Excellent Delivery Conditions.


Common steel grades of Precision Steel Tube: 

1. Carbon grades: 10xx, 11xx, 15xx.

2. Alloy Grades: 41xx, 43xx, 48xx, 50xx, 51xx, 61xx, 63xx, 86xx, 93xx.

3. Germany standard, European standard and Japanese standard can also be provided.


Contact Us: 

Skype: samsonhuang22

Email: samsonhuang(at)shunitesteel.com

Web: shunitesteel.com

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