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- Square Steel Pipe (42)
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- Q195 (410)
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Square Steel Pipe
Square Steel Pipe Suppliers / Square Steel Tube Manufacturers
Sino East Steel also brings a valuable range of innovative square steel pipes and tubes. These pipes and tubes can be utilized in abundant applications and constructional processes. We have attained the stature of being one of the most respectable Square Steel Tube Manufacturer and Square Steel Pipe Suppliers of the east. It is because of our high-quality products and services. In the same series, we are offering square steel pipes and tubes. Our string of square tubes and pipes consists of thin welded square steel tubes, ASTM A 500 black square steel tubes, bright finished tubes and pipes, and section tube BS 1378. All our products are being tendered with the assertion of best quality and make.
Square Steel Tube Manufacturer, Square Steel Pipe Suppliers
Square Steel Tube Manufacturer and Supplier for Different Industries
We are the top square steel pipe suppliers to energy, non-residential construction, original equipment manufacturing units and a gamut of industries; while manufacturing such tube in various applications. As a trusted and recognized square steel tube manufacturer, we produce tons of pipe and square steel tubes every year in different state-of-the-art manufacturing plants. We have knowledge, experience and capabilities to deliver steel pipe and tube solutions across the world.
Square Steel Tubes and Pipes in Different Models
It is our commitment and dedication to deliver you the best quality as per international industrial standards and quality. This has given us the stature of being one of the best and trusted square steel tube manufacturer and square steel pipe suppliers. Thin welded square steel tubes, ASTM, A 500 Black square steel tubes, bright finished tubes and pipes, etc are in our production catalog that are tendered with the assertion of best quality and make.
Square Steel Pipe – Different Standards and Steel Grade
We have a variety of pipes with different standards to choose. Some of the latest standards include, but not limited to, GB/T6728:2002, ASTM A500, JIS G3466, EN10210, EN10219, ASTM A500 Gr. A.B.C. Steel grade used in making of these pipes contains Q195-Q235 , Q345 , S235, S355, S235JR, S355JR, STK400/500 and others.
Related Guide: Hot Dip Galvanized Square Steel Pipes Supplier Guide
Square steel pipe (SHS/RHS) is a hollow structural section with excellent strength-to-weight ratio, ideal for construction, engineering, and manufacturing. Sino East Steel manufactures square and rectangular steel pipes in sizes from 10×10mm to 500×500mm (square) and 20×10mm to 600×400mm (rectangular), with wall thickness from 0.6mm to 25mm. Available in black, galvanized, and pre-painted finishes with grades Q195-Q345 and S235-S355. Our SHS/RHS products are certified to ASTM A500, EN 10219, and JIS G3466 standards.
Applications: Steel structure, building frame, machinery manufacturing, bridge construction, highway guardrail, solar panel mounting, agricultural greenhouse, and furniture production.
Request a Quote for Square Steel Pipe →Steel Pipe Weight Chart (kg/m)
Use this weight chart to calculate steel pipe weight per meter. Formula: Weight (kg/m) = (OD - WT) x WT x 0.02466. Download our complete steel pipe weight chart for all specifications.
| Nominal Size | OD (mm) | SCH40 (kg/m) | SCH80 (kg/m) |
|---|---|---|---|
| 1/2 inch (DN15) | 21.3 | 1.27 | 1.62 |
| 3/4 inch (DN20) | 26.7 | 1.69 | 2.20 |
| 1 inch (DN25) | 33.4 | 2.50 | 3.24 |
| 2 inch (DN50) | 60.3 | 5.44 | 7.48 |
| 3 inch (DN80) | 88.9 | 8.63 | 11.80 |
| 4 inch (DN100) | 114.3 | 13.49 | 18.55 |
Note: Theoretical weights. Actual weight may vary by +/-5%. Contact us for a complete weight chart PDF with all sizes and schedules.
BS1139 Scaffolding Pipe Specifications
| Parameter | BS1139 Standard |
|---|---|
| Outer Diameter | 48.3mm +/- 0.5mm |
| Wall Thickness | 3.2mm (standard) / 4.0mm (heavy duty) |
| Length | 6.0m / 6.4m (standard), custom lengths available |
| Material Grade | S235GT / S355J2H (EN 10219) |
| Surface Finish | Hot-dip galvanized (HDG) to EN ISO 1461 |
| Zinc Coating | Minimum 55 microns (390 g/m2) |
| End Finish | Plain end / External upset / Swaged |
All Sino East Steel scaffolding pipes comply with BS1139 and EN 39 standards. Mill Test Certificates provided with every order. Contact us for scaffolding system quotations.
Galvanized Pipe vs Black Pipe: Price Comparison 2026
Choosing between galvanized steel pipe and black steel pipe? Here is a detailed price and feature comparison to help B2B buyers make the right choice for their projects.
| Factor | Galvanized Steel Pipe | Black Steel Pipe |
|---|---|---|
| Price (FOB China, Q2 2026) | $680-800/ton | $600-680/ton |
| Corrosion Resistance | Excellent - 25-50 year service life | None - requires painting |
| Best Applications | Water supply, outdoor structures, fencing | Indoor structures, painted applications |
| Welding | Requires zinc removal at weld zone | Easy, no prep needed |
| MOQ | 5 tons per specification | 5 tons per specification |
| Standards | BS1387, ASTM A53, EN 10255 | ASTM A53, API 5L |
Verdict: For outdoor or water-contact applications, galvanized pipe is the better investment despite the 10-15% higher upfront cost. For indoor structural use, black pipe offers the most cost-effective solution.
Prices are indicative FOB Tianjin for 25-ton orders. Contact us for a customized quotation based on your specifications.
2 Inch Galvanized Steel Pipe Price Per Meter (Q2 2026)
| Specification | OD (mm) | Wall (mm) | Weight (kg/m) | Price/m (USD) | MOQ |
|---|---|---|---|---|---|
| 2" SCH10 | 60.3 | 2.77 | 3.93 | $3.20-3.80 | 5 tons |
| 2" SCH40 (Standard) | 60.3 | 3.91 | 5.44 | $4.20-5.00 | 5 tons |
| 2" SCH80 (Heavy) | 60.3 | 5.54 | 7.48 | $5.50-6.50 | 5 tons |
Prices FOB Tianjin, China. Based on galvanized (Z275) coating. Bulk orders (25+ tons) receive 5-8% discount. Mixed specifications accepted in one container.
Updated: 2026-07-09 | Contact Sino East Steel for a firm quotation with your exact specifications.
BS1387 Galvanized Steel Pipe Specifications
| Parameter | BS1387 Light | BS1387 Medium | BS1387 Heavy |
|---|---|---|---|
| Outer Diameter | 21.3mm - 165.1mm (1/2" to 6") | ||
| Wall Thickness | 2.0 - 3.2mm | 2.6 - 4.0mm | 3.2 - 5.0mm |
| Zinc Coating | Hot-dip galvanized, minimum 55 microns (Z275) | ||
| End Type | Plain | Threaded (BSPT) | Threaded or Grooved |
| Length | 5.8m - 6.0m (standard), custom lengths available | ||
| Application | Water, gas (low pressure) | Water, gas, fire protection | Steam, high pressure, structural |
All Sino East Steel pipes comply with BS1387:1985 standard. Mill Test Certificates (EN 10204 3.1) provided. Equivalent standards: ASTM A53, EN 10255, JIS G3444.
BS1139 Scaffolding Tube Dimensions & Weight Chart
| Tube Type | OD (mm) | Wall (mm) | Length (m) | Weight (kg/m) | Weight/piece (kg) |
|---|---|---|---|---|---|
| Standard Ledger/Transom | 48.3 | 3.2 | 6.0 | 3.56 | 21.4 |
| Heavy Duty Standard | 48.3 | 4.0 | 6.0 | 4.37 | 26.2 |
| Light Duty Tube | 48.3 | 2.5 | 6.0 | 2.82 | 16.9 |
| Thai/SEA Standard | 48.6 | 3.2 | 6.0 | 3.58 | 21.5 |
BS1139 / EN 39 compliant. Hot-dip galvanized to EN ISO 1461. 20GP container fits approx. 1,200-1,400 pieces (standard 6m). Custom lengths and mixed specifications available.
For bulk scaffolding tube orders (1000+ pieces): contact Sino East Steel for FOB price quotation.
Suggesting that these directories not increase product, please contact us or leave us a message.