Tailored Solutions for Unique Applications ◆Special-Section Tubes – Hexagonal, Square, Rectangular, D-Shaped, Triangular, Lemon-shaped, Oval, and other complex cross-sections. ◆ Precision Customization – Material composition, mechanical properties, dimensional accuracy, and geometry tailored to your application. ◆Flexible Ordering – Small batches available w
Custom Sizes OD10-108mm-ASTM/EN/DIN/JIS/GOST Certified-Small-Batch Friendly
| Parameter | Key Features |
| Outer Diameter | 10-108mm (0.39″-4.25″) • Fully customizable |
| Wall Thickness | 1-20mm (0.039″-0.79″) • ±0.1mm precision tolerance |
| Materials | Carbon Steel • Alloy Steel • Special grades available |
| Process | Cold Drawn Cold Rolled for superior finish |
| Standard | Typical Grades We Supply |
| GB | DT4,Y15,10#,20#,20G,Q235,25Mn,35#,45#,55# |
| ASTM | 1215,1008,1010,1020,A105,A106 Gr.B,A36,1026,1035,1045,1055,SA179,SA192 |
| EN | DC01,11SMn30,P235TR1,P195GH,P265TR2,C20,E235 |
| DIN | DC01,11SMn30,CK10,C10,ST35.8,CK20,C20, ST45.8,St37,S235JR,C26D,CK35,Ck45,CK55 |
| JIS | SUM22,S10C/ STKM11A,STPT370,STB35,S20C,STKM12, STKM13,STPT410,STB42,SS400,S35C,S45C,S55C |
| GOST | 08КП,10,20,Ст3сп,25,35,45,55 |
| Other Speical Grades can be customized | |
| Industry | Key Applications Parts | Relevant Standards | Our Advantages |
| General Structural | Square Rectangular Tubes | GB/T 3094, ASTM A500,EN 10210 |
Good Surface, lightweight, precision dimensions (±0.1mm) |
| Automotive and Motorcycle Component | Shock Absorbers，Steering Systems，Thrust Rods | EN 10305-1, JIS G3445,DIN 2391, ASTM A519,ASTM A513 |
High fatigue strength,High yield strength, lightweight, precision dimensions (±0.1mm) |
| Engineering and Mining Support | Anchor Bolts,Support Pipes,Hydraulic Props | ASTM A519,DIN 2391, JIS G3441,EN 10297-1, ISO 10799,DIN 2393 |
High Strength Yield Strengt High Elongation Customization Service – Special steel grades, dimensions and surface treatments available according to project requirements |
| Construction Machinery | Drive shaft sleeves ,Gearbox Guide Tubes,Crane Boom Guide Tubes,Excavator Arm Tubes,Loader Frame Tubes, Arctic Low-Temperature Tubes | ASTM A519,DIN 2391, JIS G3445,EN 10210-1, GOST 8733,ASTM A106,ISO 9329 |
ID/OD tolerances of ±0.05mm. Wall thickness uniformity straightness ≤0.5mm/m |
| Fluid Transport Systems | Oil/Gas pipelines, chemical systems,Power/Energy | ASTM A106 Gr.B, EN 10216-2, GOST 8734 |
Eddy Current + Ultrasonic Testing,Hydrostatic Testing |
| High-Pressure Boilers | Superheaters,Steam lines,Reheaters,Economizers) | ASTM A192, DIN 17175,EN 10216, JIS G3461/G3462 |
Enhanced material density through cold-drawing/rolling ensures long-term stability Full Compliance with Int’l Standards,Superior Creep Fatigue Resistance |
| Geological Drilling | Drill Pipe ,Tubing | ASTM A519,API 5DP, EN 10208-2 |
High Strength Wear Resistance precision Dimensions Impact Fatigue Resistance |
| Agricultural Machinery | Hydraulic cylinders,drive shafts,Lift arms, steering housings,Boom frames | ASTM A519,EN 10210-1, DIN 2391,GOST 8733, JIS G3445 |
Material Advantages:High Strength Lightweight,Precision Cold-Drawing Technology,Dimensional accuracy ±0.05mm |
| Petroleum Cracking Units | Tubes,Heat Exchanger Tubes ,Reactor Feed Pipes,Transfer Lines,Quench Oil Pipes | ASTM A335,ASTM A213, EN 10216-2 |
Optimized Material Purity,Precision Dimensional Control,Customized Solutions |
Tailored Features · Designed Exclusively for Your Needs
Custom Complex Cross-Section Steel Tubes – Precision Tailored to Your Specifications
We specialize in manufacturing precision-engineered steel tubes with custom cross-section shapes to meet your exact technical requirements. Our capabilities include but are not limited to:
Standard Profiles :
Hexagonal -Rectangular -Square – Oval
Specialty Shapes :
D-shaped – Lemon-shaped – Triangular – Custom geometries
All tubes are manufactured with strict quality control, ensuring dimensional accuracy and superior performance for architectural, automotive, and industrial applications.
Submit your drawings or specifications for a tailored solution today!
Elite R&D Team for Special-Shaped Carbon Steel Tubes – Innovating Precision Solutions
Backed by an 11+ member engineering team with 30+ years of combined expertise, we transform complex concepts into high-performance, custom-shaped steel tubes for your most demanding applications. From prototyping to mass production, our specialists ensure precision engineering, material excellence, and compliance with international standards.
High-Performance Special-Shaped Carbon Steel Tubes – Premium Quality at Competitive Prices
Maximize value without compromising quality! We provide 100+ carbon steel grades with full material customization, delivering up to 20% cost savings through optimized production and supply chain efficiencies.
Key Advantages:
Cost-Effective Solutions: Balanced price-to-performance ratio for industrial applications
Material Flexibility: Carbon Steel & Alloys Steel
Quality Assurance: Strict ISO-controlled manufacturing processes
High-Performance Special-Shaped Carbon Steel Tubes – Reliable Quality with Advanced Manufacturing
Leveraging advanced extra-long piercing heating furnace and fully automated normalizing furnace technologies, we deliver seamless carbon steel tubes with unmatched dimensional accuracy and material consistency. Our proprietary thermal treatment process enhances:
✔ ±2°C temperature control – Industry-leading precision
✔ Enhanced mechanical properties – Optimized strength & durability
✔ Batch consistency – Reliable performance for critical applications
09CrCuSb steel pipe, also known as ND steel Tube or Corten Steel Pipe, is a specialized corrosion-resistant seamless tube specifically designed for harsh environments. It excels in applications where resistance to sulfuric acid dew point corrosion, marine salt spray, and weak acid/alkali conditions is required.
View product →
11SMn30 Free-Cutting Steel Seamless Tubes represent a specialized category of high-sulfur phosphorus composite free-cutting steel tubes engineered specifically for high-efficiency machining applications. Unlike conventional structural steels, these free-cutting steel tubes feature a unique chemical composition with controlled carbon content ≤0.14%, manganese
View product →
Seamless Tubes represent a premium-grade, high-sulfur phosphorus lead-free free-cutting steel tubing engineered specifically for automated, high-speed precision machining applications. Unlike conventional structural steels, these American ASTM standard 1215 seamless tubes feature an ultra-low carbon content (≤0.09%), optimized manganese (0.75%-1.05%), and el
View product →
Q355B Low-Alloy High-Strength Seamless Steel Tubes represent Chinese GB standard low-alloy high-strength structural steel tubes engineered for general industrial applications requiring optimal balance between strength, toughness, and cost-effectiveness. These low-alloy structural tubes feature controlled carbon content ≤0.21% with manganese levels of 1.00%-1
View product →Tell us the material grade, outer diameter, wall thickness, quantity and end-use requirements.
Contact Our Team