China hollow Section Hot Dipped Galvanized Square Steel Pipe tube Supplier, Factory

Product Description

Product name	hollow section square tube
Wall Thickness	0.7mm--13mm
Length	1--14m According to customer requirements ...
Outer Diameter	20mm20mm---400mm400
Tolerance	Tolerance based on Thickness: ±5～±8%
Shape	square
Material	Q195---Q345, 10#, 45#, S235JR, GR.B-D, STK500, BS1387......
Surface treatment	Galvanized
Zinc coating	Pre-galvanized square tube: 40--220G/M2 Hot dip galvanized square tube: 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	1. Through a bundle 2. According to customer’s requirement
Loading port	Tianjin/Xingang

Customer's Benefits

Factory-Direct Pricing

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

Market-Aligned Updates

We will update the price regularly with customers according to the steel market price. Our suggestion is, when prices go down, customers purchase products. Customers can get high quality products at low prices and we can get orders.

Premium Service

Customers can get high quality products and efficient service.

Product Detail

Thickness

Length

Diameter

Product photos

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.

Strategic Port Location

Our factory is just 40 kilometers from Xingang port, which is the biggest port in the north of China.

Product Quality

No joint pipe and square cut, deburred.

Product Photos

Hot-dipped-Galvanized-Steel-Pipe-Square-Tube

Customer Case

Singapore Partnership

An inquiry has been received from a customer in Singapore. The customer needs steel pipes. After we gave the price to the customer, the customer said our price was high compared with other suppliers. However, they purchased 10 containers from our factory for the first time. Currently, we continue to supply goods to this customer every month. The customer is highly satisfied with the quality of our products and has visited 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.

Main Products

Frequently Asked Questions

What size specifications do you offer for your hollow section square tubes?

Our hollow section square tubes are available in outer diameters ranging from 20mm*20mm up to 400mm*400mm, with wall thicknesses starting from 0.7mm to 13mm. We also offer custom lengths ranging from 1 to 14 meters according to specific customer requirements.

What materials and industry standards do your square tubes comply with?

We manufacture products using high-grade materials including Q195 to Q345, 10#, 45#, S235JR, GR.B-D, STK500, and BS1387. Our production adheres fully to ASTM, DIN, JIS, and BS standards, and is supported by ISO, BV, CE, and SGS certifications.

What kind of surface finish and zinc coatings do you provide?

We specialize in galvanized square tubes. This includes pre-galvanized square tubes with a coating range of 40 to 220 G/M² and hot-dip galvanized square tubes with a robust coating range of 220 to 350 G/M² for maximum corrosion resistance.

What are your standard payment terms and estimated delivery times?

Our standard payment terms require a 30% T/T deposit in advance, with the 70% balance due after receiving the B/L copy. We also accept 100% Irrevocable L/C at sight, or 100% Irrevocable L/C payable 20-30 days after receiving the B/L copy. Delivery times are typically 25 days following the receipt of your deposit.

Where is the loading port located and what is your factory's advantage?

Our default loading port is Tianjin/Xingang. Our factory is conveniently situated just 40 kilometers from the Xingang port, which is the largest port in Northern China. This proximity enables faster transit times, optimized logistics, and competitive shipping rates.

Do you support third-party or customer inspections prior to dispatch?

Yes, we support and welcome inspections. Customers regularly visit our factory to review the products once production is finalized to verify dimensions, thickness, zinc coating quality, and overall finish before shipment.