Pipes & Tubes Material

Special-Shaped Carbon Steel Tubes

Custom special-shaped carbon steel tubes from Tenjan, including non-standard profiles with tight tolerances, controlled properties and full traceability. Confirm the material standard and acceptance requirements before ordering.

Custom grades & dimensionsFull quality traceabilityGlobal standards support

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Product details

Product Description

Precision Shaped Seamless Carbon Tubes for Industrial Applications

Custom Sizes OD10-108mm-ASTM/EN/DIN/JIS/GOST Certified-Small-Batch Friendly

Technical data

Product Specifications

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

Available materials

Shaped Seamless Steel Tube&Pipe - Steel Grade Availability

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

Applications

Industry-Specific Solutions

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

Why choose us

Custom Advantages

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, with dimensions, inspection requirements and application needs reviewed before production.

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 review the profile, material and applicable standard before confirming production.

High-Performance Special-Shaped Carbon Steel Tubes – Premium Quality at Competitive Prices

Review the required carbon steel grade and material condition before ordering. Discuss project-specific cost planning with regard to order quantity, profile tooling and downstream processing.

Key Advantages:

Cost-Effective Solutions: Balanced price-to-performance ratio for industrial applications

Material Flexibility: Carbon Steel & Alloy Steel

Quality Assurance: Strict ISO-controlled manufacturing processes

High-Performance Special-Shaped Carbon Steel Tubes – Reliable Quality with Advanced Manufacturing

Review billet heating and normalizing requirements for the ordered carbon steel tubes. Agree the following items before production:

✔ ±2°C temperature control – Confirm the temperature-control requirement

✔ Mechanical Property Review – Specify the required strength and delivery condition

✔ Batch Consistency Checks – Confirm heat and batch traceability