Galvanized Steel Pipe for Construction - Mill Direct

Zhonghe Building Materials Co., Ltd.

Verified Custom manufacturer · 3 yrs ·

China

galvanized steel pipe for construction use

Customizable Rock-bottom price

$680 1-49 ton Base price

$650 50-99 ton 4.4% off

$635 ≥100 ton 6.6% off

Price validity: subject to market conditions

Supplier's customization ability

Drawing-based customization
Sample-based customization
Full customization

Quantity

Minimum order quantity: 1 ton

Shipping total: To be negotiated

Subtotal of goods US$ 680.00

Start order request

Payment and delivery

Payment:: by contract — deposit, balance after your inspection
Lead time:: confirmed with the quotation
Packaging:: standard export packing
Samples:: available on request

Product details

Technical Specifications of Galvanized Steel Pipe for Construction Use

Property	Parameter	Description
Product Name	Galvanized Steel Pipe for Construction Use	Hot-dip or electro-galvanized welded/seamless steel pipe used in structural and construction applications
Material Grade	Q235B / Q355B (GB); S235JR / S355JR (EN); ASTM A53 Gr.A / Gr.B	International equivalents: S235JR ≈ Q235B; S355JR ≈ Q355B; ASTM A53 Gr.B ≈ Q345B
Standard Compliance	GB/T 3091, ASTM A53, EN 10255, JIS G3442	GB/T 3091: Low-pressure fluid welded steel pipe; ASTM A53: Standard specification for pipe, steel, black and hot-dipped zinc-coated
Chemical Composition (C)	≤ 0.25% (Q235B); ≤ 0.20% (A53 Gr.B)	Carbon content controls weldability and strength
Chemical Composition (Mn)	≤ 1.40% (Q355B); ≤ 1.20% (A53 Gr.B)	Manganese enhances tensile strength and toughness
Chemical Composition (P / S)	P ≤ 0.045%; S ≤ 0.045%	Phosphorus and sulfur limits per GB/T 3091 and ASTM A53 to ensure ductility
Tensile Strength	≥ 415 MPa (A53 Gr.B); ≥ 470 MPa (Q355B per GB/T 3091)	Minimum tensile strength ensuring structural load-bearing capacity
Yield Strength	≥ 240 MPa (Q235B); ≥ 355 MPa (Q355B); ≥ 240 MPa (A53 Gr.B)	Minimum yield strength for construction structural requirements
Elongation	≥ 21% (Q235B); ≥ 20% (A53 Gr.B)	Minimum elongation at fracture indicating material ductility
Outer Diameter (OD)	DN15 – DN600 (15 mm – 630 mm OD)	Available in standard nominal bore sizes per GB/T 3091, ASTM A53, and EN 10255
Wall Thickness	1.8 mm – 20 mm	Schedule 20, 40, 80 (ASTM); Light / Medium / Heavy series (GB/EN)
Length	4 m – 12 m (customizable)	Standard random lengths; fixed lengths available upon request
Zinc Coating (Hot-Dip)	≥ 45 µm (average); ≥ 600 g/m² (ASTM A53)	Hot-dip galvanizing per ASTM A123 / GB/T 13912 for superior corrosion resistance
Surface Finish	Hot-Dip Galvanized (HDG) / Electro-Galvanized	Uniform zinc coating; smooth finish; free from cracks, blisters, and flux inclusions
Application	Scaffolding, structural framing, water supply lines, HVAC, fire protection systems, fencing	Widely used in residential, commercial, and industrial construction projects
Certification	ISO 9001, CE Marking, API, SGS, BV	Third-party inspection and mill test certificates (MTC) available per EN 10204 3.1
Packaging	Bundled with steel strips; both ends capped; waterproof paper or plastic wrapping	Bundle weight: 1–3 MT; custom labeling and marking available
MOQ	5 Metric Tons	Lower MOQ negotiable for mixed specifications; spot stock available for standard sizes

Galvanized Steel Pipe for Construction - Mill Direct

Galvanized steel pipe for construction use stands as one of the most reliable structural materials in modern building projects, delivering a proven combination of load-bearing strength and long-term corrosion resistance. Whether you are developing residential frameworks, commercial scaffolding systems, or large-scale infrastructure networks, these pipes provide the structural integrity that demanding construction environments require. The hot-dip galvanizing process bonds a zinc coating—typically ranging from 45 µm to 85 µm in thickness—directly to the steel substrate, forming a metallurgical barrier that actively shields against moisture, oxidation, and chemical exposure. This protective mechanism extends service life well beyond that of uncoated alternatives, reducing maintenance costs and replacement cycles over the lifespan of a structure. Engineers and procurement managers across the globe specify galvanized construction pipe precisely because it balances performance, code compliance, and overall project economy in ways that few other materials can match.

What is Galvanized Steel Pipe for Construction Use?

Galvanized steel pipe for construction use is a carbon or low-alloy steel tube that has undergone hot-dip or electro-galvanizing treatment to apply a protective zinc layer across its interior and exterior surfaces. Produced in round, square, and rectangular profiles, these pipes serve critical roles in structural columns, handrails, water supply lines, conduit systems, and scaffolding frameworks on construction sites worldwide. The zinc coating provides cathodic protection, meaning the zinc sacrificially corrodes before the base steel is affected, ensuring structural integrity even in harsh outdoor or high-humidity environments.

galvanized steel pipe for construction use supplier

Galvanized Steel Pipe for Construction Use Technical Specifications

Our galvanized steel pipes for construction meet ASTM A53, EN 10255, and BS 1387 standards, with an outer diameter range of 15 mm to 508 mm and wall thicknesses from 1.8 mm to 12.7 mm. Base steel yield strength reaches a minimum of 205 MPa, with tensile strength of 415 MPa minimum per ASTM A53 Grade A. Zinc coating weight is certified at 305 g/m² (Class A) to 610 g/m² (Class B) per ASTM A123, ensuring corrosion protection exceeding 50 years in moderate atmospheric exposure. Lengths are available from 6 m to 12 m in standard or custom cuts, with hydrostatic testing performed at pressures up to 5 MPa per unit.

galvanized steel pipe for construction use manufacturer

Get a Competitive Quote for Galvanized Steel Pipe for Construction

Sourcing galvanized steel pipe for construction directly from our mill eliminates intermediary markups, giving your project access to cost-effective, certified material with fast lead times. Our team is ready to match your exact specifications and volume requirements with a tailored proposal delivered within 24 hours.

galvanized steel pipe for construction use wholesale

24/7 customer support available
Free samples for quality evaluation
Competitive pricing for bulk orders
Professional technical consultation

Contact us today to get your free quote within 24 hours!

Ratings & Reviews

4.5

Based on 8 reviews

5 5

4 2

3 1

2 0

1 0

Ahmed R.

UAE

2025-02-01

Initial coating query raised — resolved promptly, product now confirmed acceptable

We ordered 40 MT of 48.3 mm and 60.3 mm OD galvanized scaffolding pipe for a construction project in Dubai. On arrival, our QC team flagged that coating thickness readings on roughly 8% of pipes in one bundle measured closer to 42 µm rather than the 45 µm minimum specified. We raised this with the supplier immediately. They responded within four hours, reviewed our measurement report, and arranged a partial replacement shipment at no additional cost within 12 days. The replacement batch fully conformed. Issue was handled professionally and we would consider ordering again with tighter pre-shipment inspection agreed upfront.

Fiona M.

United Kingdom

2025-02-22

Solid product at a fair price — freight coordination could be smoother

Purchased 55 MT of BS 1387 galvanized pipe in mixed sizes from 21.3 mm to 114.3 mm OD for a utilities project in Manchester. The pipe itself was well within spec — wall thickness tolerances tight, zinc coating uniform with no bare spots on visual inspection. Pricing reflected genuine mill-direct savings versus UK distribution. Freight coordination with our forwarding agent took a couple of extra exchanges to finalise, which added a day or two. Not a major issue, but worth mentioning. Product quality and price are the main reasons we'd order again.

David H.

United States

2025-03-16

Good value on large volume — minor documentation delay at the start

Ordered 200 MT of 168.3 mm OD ASTM A53 galvanized pipe for water supply line installation on a municipal project in Ohio. Pricing was competitive for this volume and the pipe quality — yield strength, coating weight — met spec throughout. Only reason for 4 stars is that the initial mill certificate package took an extra three days to arrive, which briefly held up our submittal process. Once resolved, everything moved smoothly. Overall a strong supplier for bulk construction pipe requirements and we would use them again.

Know your supplier

Zhonghe Building Materials Co., Ltd.

3 yrs on Sinoali.com

Located in China

Company information More goods

FAQ

Q: What is the zinc coating weight of your galvanized steel?

A: Common zinc coating includes Z60, Z80, Z100, Z120, Z180, Z275, and we can also provide custom coating as required.

Q: What types of galvanized steel do you supply for construction?

Q: What is the difference between GI and PPGI?

Q: Do you offer customized sizes and lengths?

Q: How do you package galvanized steel to prevent rust during shipment?

Q: Can you provide mill test certificates (MTC) for galvanized steel?

Product display

Zhonghe Building Materials Co., Ltd. is a professional industrial manufacturer and supplier focusing on high-quality building materials. We specialize in a full range of steel building materials, covering reinforcing steel bars, galvanized steel products, corrugated steel sheets, structural steel pipes and other related metal construction materials.

Equipped with advanced production lines and precision testing equipment, the company implements strict full-process quality control and holds authoritative industry qualification certificates. We maintain sufficient spot inventory, adopt standardized export packaging, and ensure stable delivery cycles to meet global customer demands.

Our products are widely applied in construction engineering, machinery manufacturing, shipbuilding, energy and infrastructure projects. Adhering to the principle of quality first and customer-oriented service, we are committed to providing reliable building material solutions and long-term stable cooperation for global clients.