Product Specification

Parameter	Details
Shape	Special-shaped
Surface Treatment	Shot Blasting, Bared, Black Painted, Galvanized, Oiled or to your requirements
Out diameter	10mm-600mm, other sizes negotiable
Wall Thickness	1.2mm-30mm, other sizes negotiable
Length	Up to 16m
Tolerance of OD	±0.2mm
Steel material	220#, Q355, Q390, Q420, Q460, Q500, Q620, Q690, 35#, 45#, 40Cr, 12CrMo, 30CrMO, 35CrMo, 42CrMo, S235JRH, S275J0H, S275J2H, S355J0H, S355J2H, S355K2H, S275NH, S275NLH, S355NH, S355NLH, S420NH, S420NLH, S460NH, S460NH, S460NLH, BJ780, BJ890, YG550, YGS70, YGS100, YGS100BJ, YGS130, YGS150, YG960, ETC.
Technical Standard	GB/T 3094-2012, GB/T 1591-2018, GB/T8162-2018, EN 10210
Technique	Cold draw
Supply Ability	5000 tons
Payments Term	T/T or L/C
MOQ	1 ton
Delivery condition	Annealed, Normalized, Tempered and quenched (Q&T)

Product Description

Special shaped seamless pipes refer to seamless steel tubes with non-circular cross-sections, such as oval, triangular, hexagonal, semicircular, and more. Based on customer drawings or specifications, we precisely manufacture various non-standard shaped tubes.

Using high-quality seamless round pipes as raw material, our shaped pipes are formed through cold drawing process. They feature uniform wall thickness, high strength, precise dimensions, and smooth surfaces. These pipes are widely used in structural parts, machinery, automotive components, customized furniture, rail transit, and special equipment.

Custom drawings, small batch production, and quick sampling are available to support your unique project needs.

Application

Construction & Structural Engineering	Structural frames, window & door profiles, architectural columns, handrails
Machinery & Equipment	Custom brackets, machine frames, rails, connecting parts
Automotive & Rail Transit	Seat supports, chassis structures, rail vehicle frames
Petrochemical & Piping Solutions	Special fluid channels, condenser structures, chemical frames
Agricultural & Environmental Equipment	Farm machinery frames, supporting arms, environmental devices

Available Mold

Customization

With in-house tooling, material sourcing, and technical support, we offer flexible customization to meet your specific needs:

Dimension Customization: Non-standard diameter, thickness, and length
Material Options: Carbon steel, stainless steel
Processing Services: Cutting, logo marking
Surface Treatment: Painting, shot blasting, oiling, galvanizing
Marking & Packaging: Custom logo, labels, and packaging options

We support drawing-based production, small batch trial orders, and fast sample delivery to help your projects start quickly.

Product Inspection

Inspect the outer diameter
Inspect the zine amount
Inspect the thickness
Mechanical property
Metallography testing
Chemical composition analysis
Non-destructive testing
Salt spray test

Testing Equipment

Universal Servo Tensile Testing Machine
Charpy Impact Testing Machine
Direct-Reading Spectrometer
Salt Spray Test Chamber
Vickers Hardness Tester
Metallurgical Microscope

Packaging & Delivery

We provide professional packaging and flexible delivery options based on your product and shipping needs:

Packaging Methods:
- Steel-strapped bundles with labels
- Plastic wrap + woven fabric cover
- Export-grade wooden cases or pallets
- Plastic end caps for tube protection
Delivery Options:
- Sea freight, truck transport, or rail shipment
Common ports:
- Shanghai, Changsha
Lead Time:
- Standard sizes: 7–15 days
- Custom orders: 30–45 days

Export documents such as CO, CQ, and third-party inspection reports are available upon request.

Why Choose Us?

Factory directly
Fine quality
Materials to enrich
Size precision
Strict quality inspection
Stable performance
Strong to fight
Support for custom

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FAQ Section

Q1: Can you provide customized sizes or special shapes?

A1: Yes. We can customize dimensions, shapes, wall thickness, and materials based on your drawings or samples. Special-shaped and non-standard pipes are our specialty.

Q2: What is your minimum order quantity (MOQ)?

A2: Our typical MOQ is 1 ton, but it may vary depending on product type and stock availability. Please contact us for details.

Q3: What about the lead time for mass production?

A3: Honestly, it depends on the order quantity and specification and the season you place the order.

Q4: Can you provide export documents?

A4:Absolutely. We provide documents such as Certificate of Origin (CO), packing list, invoice, quality report, HS code, and 3rd-party inspection certificates.

Q5: Can I get a sample?

A5: Yes. Some standard samples are free (freight collected). Customized samples may incur a fee.