China Hot Dip Galvanizing Gi Square Pipe 30x30 Manufacturer, Suppliers

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	25days after receive ur deposits
Package	Through a bundle According to customer’s requirement
Loading port	Tianjin/Xingang

Customer's Benefit

We are factory. (Our price will have an advantage over trading companies.)

We will update the price regularly with customers according to the steel market price.

Customers can get high quality products and efficient service.

Product Detail

Thickness

Length

Diameter

GI Pipe Zinc Coating

HDG Pipe Zinc Coating

Diameter Detail

Different From Other Factories

Delivery date We discussed the delivery date with the customer.
Prompt reply After work, we will check the email in time. We will deal with emails from customers in time. Solve problems for customers in time. We provide efficient service.
Port Our factory just 40 kilometers from Xingang port, is biggest port in the north of China.

Packing and Transport

Customer Case

An inquiry has been received from a customer in Singapore. The customer needs steel pipes. After we give the price to the customer, the customer says our price is high. Customers are compared with other suppliers. The customer purchased 10 containers in our factory for the first time. Now per month we are still supplying goods to this customer. The customer is satisfied with the quality of our products. Customers to our factory to establish long-term relations of cooperation.

Customer Photos

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 is the difference between Hot Dip Galvanized and Pre-Galvanized steel pipes?

Hot dip galvanized pipes are dipped into a molten zinc bath after production, yielding a thicker zinc layer (220-350G/M²) for superior corrosion resistance. Pre-galvanized pipes are formed from steel sheets that are already galvanized, offering a thinner zinc layer (40-220G/M²) and a smoother surface finish.

What specifications and sizes of galvanized steel pipes can you provide?

We supply pipes with an outer diameter range of 1/2'' (21.3mm) to 16'' (406.4mm), wall thickness from 0.6mm to 20mm, and lengths customizable from 1m up to 14m according to your requirements.

Which standards and certifications do your steel pipes meet?

Our products meet ASTM, DIN, JIS, and BS standards, and are fully certified by leading global inspection authorities such as ISO, CE, SGS, and BV.

What are your payment terms and delivery time?

We typically accept a 30% T/T deposit in advance with the remaining 70% balance due against the B/L copy, or 100% Irrevocable L/C at sight. Delivery typically takes about 25 days after the deposit is received.

How are the steel pipes packaged for shipment?

Pipes are packaged either securely in bundles or tailored according to the specific packaging requests of our customers to ensure safety during transit.