Square Steel Pipe Manufacturer & Supplier in China

 

At Wuxi Chengxingchuang Metal Products Co., Ltd., we operate a 7,000 m² self-owned manufacturing facility equipped with advanced production lines and an ISO 9001 certified quality management system to supply precision square steel tubing worldwide.

 
  • ERW Square Steel Pipe

    ERW Square Steel Pipe is produced by high-frequency welding with accurate dimensions and stable quality, suitable for structural frames, machinery, and fabrication projects.

  • Cold Formed Square Steel Tube

    Cold Formed Square Steel Tube is manufactured by cold forming carbon steel or alloy steel strips into square sections with accurate dimensions and consistent mechanical performance. It is widely used

  • Black Square Steel Pipe

    Black Square Steel Pipe is made from high-quality carbon steel strip and manufactured through cold forming and high-frequency resistance welding (ERW) processes, resulting in excellent strength,

  • ZMA Square Steel Tube

    ZMA Square Steel Tube is produced from zinc-magnesium-aluminum coated steel strip using high-frequency welding, providing excellent corrosion resistance, consistent dimensional accuracy, and

  • Bright Square Steel Pipe

    Produced through precision cold drawing and bright finishing, Bright Square Steel Pipe offers tight dimensional tolerances, a smooth surface, and consistent mechanical properties, helping reduce

 

What Is Square Steel Pipe

 

 

Square Steel Pipe, also referred to as Square Steel Tube or Square Hollow Section (SHS), is a hollow structural steel product featuring four equal sides and uniform wall thickness.

 

Types
 

ERW Square Steel Pipe
Manufactured using high-frequency electric resistance welding, ERW Square Steel Pipe is widely used for steel structures, warehouses, storage racks, machinery frames, fencing, and general construction where reliable structural performance and efficient production are required.

 

Cold Formed Square Steel Tube
Cold Formed Square Steel Tube is produced through precision cold roll forming and is widely used in structural engineering, industrial equipment, machinery manufacturing, automation systems, and other applications requiring uniform sections and easy fabrication.

 

Black Square Steel Pipe
Black Square Steel Pipe features a natural mill finish without surface coating, making it an economical choice for indoor structures, machinery frames, furniture, equipment supports, and products that will be painted or powder coated after fabrication.

 

ZMA Square Steel Tube
Coated with a Zinc-Magnesium-Aluminum (ZMA) alloy, ZMA Square Steel Tube is designed for long-term outdoor use in solar mounting systems, greenhouses, fencing, agricultural facilities, and other environments exposed to moisture and weather.

 

Bright Square Steel Pipe
Bright Square Steel Pipe features a clean, smooth surface and is widely used in machinery, fitness equipment, furniture, automotive components, display systems, and decorative metal fabrication where surface appearance is important.

 

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Specifications

 

Technical Parameter

Specification Details

Product Name

Square Steel Pipe / Square Hollow Section (SHS)

Product Types

ERW, Cold Formed, Black, ZMA, Bright

Outer Size Range

10×10 mm – 200×200 mm

Wall Thickness

0.5 mm – 12.0 mm (Varies by product type and size)

Standard Lengths

3 m, 6 m, 9 m, 12 m, or Custom lengths

Material Grades

Q195, Q235, Q235B, Q345, Q345B, Carbon Steel, Alloy Steel, SPCC, S350GD, S450GD, S550GD

Surface Finishes

Black, Bright, ZMA Coated, Custom coatings

ZMA Coating Weight

40–600 g/m²

Manufacturing Process

ERW High-Frequency Welding / Cold Roll Forming

Value-Added Processing

Laser Cutting, Punching, Bending, End Beveling, Swaging, Welding

Compliance Standards

ASTM A500, EN 10219, JIS G3466, GB/T 6728, or custom standards

OEM & ODM Services

Fully Available

 

Buying Guide

 

Select the Product Type

Choose ERW for structural economy, Cold Formed for precision, Black for indoor painting, ZMA for harsh outdoor environments, or Bright for aesthetic applications.

01

Choose the Material Grade

Select Q195 for general light fabrication, Q235B for standard construction loads, or Q345B for high-strength load-bearing specifications.

02

Confirm Dimensions

Determine the exact outer dimensions, wall thickness, and length based on architectural and engineering load calculations.

03

Choose Surface Finish

Specify Black, Bright, or ZMA coating parameters depending on environmental exposure requirements.

04

Request Pre-Processing Services

Order customized cutting, punching, or bending prior to shipment to reduce on-site labor and handling expenses.

05

 

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FAQ

 

 

Q: What is your minimum order quantity (MOQ) for custom square steel pipe sizes?

A: Our standard MOQ typically starts at 3 tons per size, though we accommodate smaller trial orders depending on current production schedules.

Q: What are your standard payment terms for international B2B orders?

A: We generally require a 30% deposit via T/T upon order confirmation, with the remaining 70% balance payable against the copy of the Bill of Lading.

Q: Can you arrange third-party inspection prior to shipment?

A: Yes, we fully cooperate with third-party inspection agencies such as SGS, BV, or TUV appointed and paid for by the buyer.

Q: What is the typical production lead time for standard versus custom orders?

A: Standard stock items ship within 7 to 10 days, while custom production and processed orders typically require 15 to 25 days.

Q: How do you pack square steel pipes for international ocean freight container shipping?

A: Pipes are securely bundled with steel strips, wrapped in waterproof plastic film, and can be loaded into 20ft or 40ft containers or breakbulk vessels as requested.

Q: Do you offer free samples for quality evaluation before placing a bulk order?

A: Yes, we provide free short-length material samples, while international courier shipping freight costs are borne by the recipient.

Q: Are your square steel pipe products certified for European structural standards?

A: Yes, our products can be manufactured and tested to comply with strict European norms such as EN 10219 for cold-formed structural hollow sections.

Q: Can you stamp customer-specified logos or trace codes onto the pipe surface?

A: Yes, we offer inline inkjet printing services to display your company logo, standard designation, heat number, or size specifications on each pipe.

Q: What corrosion protection options are available for long-term ocean transit?

A: Besides standard plastic wrapping and protective bundling, we offer anti-rust oil application or waterproof woven bag packaging upon request.

Q: How do you handle dimensional tolerances for precision-cut square steel tubes?

A: Our advanced cutting equipment maintains length tolerances within ±0.5 mm and outer size tolerances strictly within international mill standards.

As one of the most professional square steel pipe manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to buy cheap square steel pipe for sale here from our factory. Welcome to contact us for customized service.

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We manufacture galvanized steel pipes, zinc-aluminum-magnesium steel pipes, precision bright steel tubes, black steel pipes, and custom cold-formed steel sections for diverse industrial applications.

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