GI A53 Galvanized Steel Pipe for Water, Gas & Structural Piping | China Factory
In the construction of industrial and mining enterprises, galvanized steel pipes are used for liquid transportation: water supply and drainage (including industrial and civil cooling water).
| Item | Description |
| Standard | ASTM A53 / A53M |
| Type | Type F (Furnace Welded), Type E (ERW), Type S (Seamless) |
| Grade | Grade A, Grade B |
| Manufacturing Process | Seamless / Electric Resistance Welded (ERW) |
| Surface Treatment | Hot-Dip Galvanized |
| Outside Diameter | 1/8" – 26" (10.3mm – 660mm) |
| Wall Thickness | Sch 10, Sch 40, Sch 80, STD, XS, XXS |
| Length | 5.8m, 6m, 12m or Custom |
| End Type | Plain End / Beveled End / Threaded with Coupling |
| Zinc Coating | Typically 400–600 g/m² (customizable) |
| Inspection | Hydrostatic Test, NDT, Dimension Inspection |
| Certification | Mill Test Certificate (MTC), Third-party inspection available |
| Grade | Yield Strength (min) | Tensile Strength (min) |
| Grade A | 205 MPa | 330 MPa |
| Grade B | 240 MPa | 415 MPa |
| Grade | C | Mn | P | S | Cu* |
| Grade A | 0.25 | 0.95 | 0.05 | 0.045 | 0.4 |
| Grade B | 0.3 | 1.2 | 0.05 | 0.045 | 0.4 |
1️⃣ Structural Steel Solutions
A53 galvanized steel pipe is commonly used in the structural load-bearing frames of warehouses, factories, commercial buildings, and agricultural buildings.
Reasons for Application:
High tensile strength (up to 415 MPa for Grade B)
Good weldability and workability
The galvanized coating provides rust protection and a service life of over 20 years.
Suitable for columns, supports, secondary structures, and support modules.
Especially in the United States, it is used in prefabricated steel structure buildings and industrial workshops.
2️⃣ System Scaffolding
Galvanized A53 steel pipe is ideal for scaffolding systems because it is strong, durable, and can be exposed to outdoor environments.
Advantages:
Good load-bearing capacity
Rust-resistant, reusable outdoors
Threaded connections for easy and quick assembly
Easy to maintain, long service life
Widely used in high-rise buildings, bridge construction, and civil engineering.
3️⃣ Gas and Water Piping
A53 galvanized steel pipe is widely used in low-pressure water and gas pipelines.
Key Advantages:
Excellent internal pressure resistance
Galvanized coating prevents rust caused by moisture
Easy installation: Reliable threaded or welded connections
Suitable for municipal, residential, and small commercial applications
Also widely used in building water supply and drainage, compressed air, and municipal engineering.
4️⃣ Fire Protection Systems
Galvanized steel pipes are widely used in fire sprinkler and fire extinguishing systems due to their high durability and pressure resistance.
Advantages:
Strong pressure resistance
Corrosion resistant and reliable over time
Suitable for threaded and grooved connections
Complies with building safety and fire regulations
Commonly used in public buildings such as warehouses, shopping malls, and factories
5️⃣ Mechanical and Industrial Piping
ASTM A53 galvanized steel pipes are widely used in industrial applications for conveying air, water, oil (low-pressure and non-corrosive fluids only), and other non-corrosive fluids.
Applications include:
Compressed air piping
Equipment support piping
Cooling water circulation systems
Mechanical connection piping
They are strong, durable, and suitable for harsh factory environments.
6️⃣ Electrical Conduit Systems
ASTM A53 galvanized steel conduit can even protect electrical wiring in commercial and industrial buildings.
Advantages:
Provides superior mechanical protection for cables
Fire-resistant metal structure
Corrosion resistant, ensuring long-term safety
Suitable for indoor and outdoor applications
Widely used in power plants, commercial buildings, factories, as well as roads and bridges!
Zinc coating thickness ranges from 30g to 550g, and hot-dip galvanizing steel pipes, electro-galvanizing steel tube, and pre-galvanizing steel tube are available. Zinc coating production support is available after inspection reports are received. Thickness is produced according to contract specifications. Our company's process thickness tolerance is within ±0.01mm. Laser-cut nozzles ensure a smooth and neat finish. Straight seam welded pipe with a galvanized surface. Cutting lengths are 6-12 meters, with standard US lengths of 20ft and 40ft available. Alternatively, we can customize product lengths, such as 13 meters. With a warehouse producing over 5000 tons of goods daily, we can offer the fastest delivery times and competitive prices.
1. What are your prices?
Our prices are subject to change depending on supply and other market factors. We will send you an updated price list after your company contact
us for further information.
2. Do you have a minimum order quantity?
Yes, we require all international orders to have an ongoing minimum order quantity. If you are looking to resell but in much smaller quantities, we recommend you check out our website
3. Can you supply the relevant documentation?
Yes, we can provide most documentation including Certificates of Analysis / Conformance; Insurance; Origin, and other export documents where required.
4. What is the average lead time?
For samples, the lead time is about 7 days. For mass production, the lead time is 5-20 days after receiving the deposit payment. The lead times become effective when
(1) we have received your deposit, and (2) we have your final approval for your products. If our lead times do not work with your deadline, please go over your requirements with your sale. In all cases we will try to accommodate your needs. In most cases we are able to do so.
5. What kinds of payment methods do you accept?
30% in advance by T/T, 70% will be before shippment basic on FOB; 30% in advance by T/T, 70% against the copy of BL basic on CIF.
