What standards do your Galvanized Steel Pipe products meet?

Our Galvanized Steel Pipe products comply with ASTM, BS, JIS, and GB international standards. All products come with mill test certificates and third-party inspection is available upon request.

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Standard

AISI (20)
ASME (233)
ASTM (625)
BS (225)
DIN (232)
EN (156)
GB (265)
JIS (93)

Type

Carbon Structural Steel (65)
Equal (162)
Heavy (292)
Light (141)
Plate (140)
Round (508)
Spring Steel Bar (57)
Steel Coil (71)

Grade

200 Series (16)
300 Series (38)
400 Series (87)
HRB400 (240)
Q195 (410)
Q235B (569)
Q345 (274)
SS400 - SS490 (119)

Applications

Boiler Plate (31)
Construction (406)
Container Plate (127)
Manufacturing (621)
Railway Rail (46)
Steel Fabricated House (146)
Steel Workshop (202)
Structure Pipe (152)

Galvanized Steel Pipe

Galvanized Steel Pipe Manufacturers & Galvanized Steel Tube Suppliers

carbon steel pipe

Steel pipes are ubiquitous which could be found within and underground laboratories, residential walls and industrial structures. Actually, these steel tubes are widely used for several purposes such as riveted, welded or bolded construction of buildings and bridges. When it comes to buying the steel tubes for any purposes, you can make your purchase from the best professional steel tube manufacturers and then use it for any applications. Before buying, you must consider some important factors such as materials, tolerances, dimensions and weights, lengths, straightness and mechanical tests and so on.

Galvanized steel pipe is simply steel coated with zinc. After going through a process called galvanizing, in which steel pipe is coated with zinc and a normal steel pipe becomes a galvanized steel pipe. This process is performed to avoid steel from rust and corrosion. Basically, the galvanized pipes we offer are used in the water application. We have an excellent experience in steel manufacturing so, the product we provide are best and durable. We aim to be the most successful international supplier of steel so; we offer world class products with best services. Client satisfaction is most essential to us so if you are facing any problem with our products feel free to contact us. We will sort out your problem as soon as possible.

Segsteel is one of the largest galvanized steel pipe and tube manufacturers and suppliers in China . Our all products are made with high quality materials that mostly used for the several purposes. Galvanized steel pipes, tubes are available in different size and shapes depend on the needs of the customers. The pipes and tubes we offer are made with galvanized steel that go best in the construction of a building. They are covered with a layer of zinc and cleaned with acid.

Galvanized steel pipe is carbon steel pipe coated with a protective zinc layer through hot-dip galvanizing, providing excellent corrosion resistance and extended service life. Sino East Steel Group is a leading galvanized steel pipe manufacturer in China, producing pipes compliant with BS1387, ASTM A53, and JIS G3444 standards. Our galvanized pipes range from 1/2 inch to 12 inches in diameter, with wall thickness from 0.8mm to 25mm, suitable for water supply, gas transportation, scaffolding, greenhouse construction, and structural applications. With over 15 years of export experience to 50+ countries across the Middle East, Africa, Southeast Asia, and South America, we offer factory-direct pricing with flexible MOQ.

✓ Hot-dip galvanized zinc coating 200-600 g/m²

✓ Threaded, plain-end, or grooved ends available

✓ Round, square, and rectangular profiles

✓ Length from 5.8m to 12m, custom cutting available

✓ Compliant with BS1387, ASTM A53, JIS G3444, EN 10255

Applications: Water pipeline, gas pipeline, scaffolding, greenhouse structure, fencing, fire protection, HVAC systems, and construction framing.

Request a Quote for Galvanized 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.