China Galvanized Steel Pipe Schedule 80 Manufacturer, Suppliers

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China Galvanized Steel Pipe Schedule 80 Manufacturer, Suppliers

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Product Description

The Product Description

Product name	Hot Dip Galvanized Steel Pipe/Pre-Galvanized Steel Pipe
Wall Thickness	0.6mm--20mm
Length	1--14m According to customer requirements ...
Outer Diameter	1/2’’(21.3mm)---16’’(406.4mm)
Tolerance	Tolerance based on Thickness: ±5～±8%
Shape	Round
Material	Q195---Q345, 10#, 45#, S235JR, GR.B-D, STK500, BS1387......
Surface treatment	Galvanized
Zinc coating	Pre-galvanized steel pipe: 40--220G/M2; Hot dip galvanized steel pipe: 220--350G/M2
Standard	ASTM, DIN, JIS, BS
Certificate	ISO, BV, CE, SGS
Payment terms	30% T/T deposit in advance, 70% balance after B/L copy; 100% Irrevocable L/C at sight, 100% Irrevocable L/C after receive B/L copy 20--30days
Delivery times	25 days after receive ur deposits
Package	Through a bundle According to customer’s requirement
Loading port	Tianjin/Xingang

Customer's Benefit

Factory Direct Pricing: We are a factory, ensuring our prices offer a distinct advantage over trading companies.

Reliable Delivery: We guarantee on-time delivery and strictly controlled quality to achieve complete customer satisfaction.

Product Detail

Thickness

Length

Diameter

Pre-galvanized pipe zinc coating layer detail

GI pipe zinc coating

Hot dip galvanized pipe zinc coating layer detail

HDG pipe zinc coating

Steel pipe diameter specification illustration

Diameter detail

Different From Other Factories

Patented Technologies: We have applied for and received 3 patents (Groove pipe, Shoulder pipe, Victaulic pipe).

Strategic Location: Our production facility is located just 40 kilometers from Xingang port, the largest port in Northern China, optimizing logistics.

Advanced Manufacturing Capacity: Our production equipment includes 4 pre-galvanized lines, 8 ERW steel pipe lines, and 3 hot-dipped galvanized process lines.

Packing and Transport

Customer Case

"An Australian customer purchased powder-coated pre-galvanized steel square tubes. Upon receiving the initial shipment, the customer tested the adhesive strength between the powder and the square tube surface, and found the adhesion was low. We held meetings and ran continuous tests with the customer to resolve this issue. By polishing the square tube surface and passing it through a heating furnace before coating, we successfully optimized the process. After extensive testing, the customer was highly satisfied. Consequently, they now place large monthly volume orders with our factory."

Customer Photos

Customer discussing order details at the factory

The customer purchased steel pipes in our factory. After the goods were produced, the customer came to our factory for inspection.

Frequently Asked Questions (FAQ)

What are the zinc coating standards for your galvanized steel pipes?

Our pre-galvanized steel pipes have a zinc coating layer of 40 to 220 G/M², while our hot dip galvanized steel pipes feature a heavier coating ranging from 220 to 350 G/M² to ensure superior corrosion resistance.

What size range and wall thickness do you provide?

We produce steel pipes with an outer diameter range of 1/2’’ (21.3mm) to 16’’ (406.4mm) and wall thickness values from 0.6mm up to 20mm. The lengths can be customized between 1 to 14 meters according to your requirements.

Which materials and international standards do you conform to?

Our pipes are manufactured in compliance with international standards, including ASTM, DIN, JIS, and BS. We support standard structural steel grades such as Q195 to Q345, 10#, 45#, S235JR, GR.B-D, STK500, and BS1387.

What are your standard delivery timeframes and payment options?

Delivery takes approximately 25 days following the receipt of your deposits. We offer flexible payment terms: 30% T/T deposit in advance with the remaining 70% balance settled against the B/L copy, or 100% Irrevocable L/C at sight / 20-30 days post-B/L.

Where is your loading port located, and what is your factory setup?

All shipments are dispatched from the Tianjin/Xingang port, which is the largest port in Northern China. Our manufacturing facility is located just 40 km from the port and features 4 pre-galvanized lines, 8 ERW steel pipe lines, and 3 hot-dipped galvanized lines to ensure prompt processing.

Can you support custom post-processing requirements?

Yes. As a direct manufacturer, we work closely with clients to run trials and adjust our processing methods (such as polishing, pre-heating, and specialized coatings) to meet strict specifications like powder coating adhesion.