Versatile Precision Tubes for Mechanical Structures
Machinery and general engineering cover a broad set of structural and functional tube needs. Dingxin supplies cold-drawn seamless tubes in low-carbon and alloy grades, with the dimensional flexibility, cut-to-length service and consistent properties that equipment builders rely on.
Material & Specification
| Grade | Standard | Typical OD x WT (mm) | Delivery Condition | Key Properties |
|---|---|---|---|---|
| E215 | EN 10305-1 | 10-120 x 1-10 | Cold drawn | Low-carbon, high-precision |
| E235 | EN 10305-1 | 10-150 x 1-12 | Cold drawn | General mechanical structures |
| E355 | EN 10305-1 | 20-150 x 3-15 | Cold drawn | Higher-strength structures |
| 34CrMo4 | EN 10083-3 | 30-150 x 4-20 | Quenched & tempered | Alloy, high strength |
| 42CrMo4 | EN 10083-3 | 30-150 x 4-20 | Quenched & tempered | Very high strength |
Typical Applications & Parts
Mechanical Structural Tube
Frames, booms and load-bearing members in industrial equipment.
Hydraulic Accessories
Manifolds, adapters and auxiliary lines for hydraulic systems.
Drive Shaft & Spindle
Rotating members where straightness and balance are important.
General Engineering
Custom tubes for jigs, fixtures, rollers and special machinery.
Key Technical Requirements
Dimensional flexibility across a wide OD and wall range
Cut-to-length service to reduce downstream machining
Consistent mechanical properties for predictable design
Good machinability for drilling, turning and welding
Surface quality suitable for coating or plating
Dingxin Manufacturing Capability
Wide Grade Range
From low-carbon E215/E235 to alloy 34CrMo4/42CrMo4, covering most machinery needs.
Custom Dimensions
Tailor-made OD, wall thickness and length built to your drawing and reference standard.
Cut-to-Length
Saws and straightening support the lengths your production line needs.
One-Stop Supply
Integrated plant means shorter lead times and single-source accountability.
Frequently Asked Questions
Build Your Machinery Tubes With Us
Send your drawing or specification. We will recommend the right grade, tolerance and length for your mechanical or engineering application.
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