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
25 days after receive ur deposits
Package
Through a bundle
According to customer’s requirement
Loading port
Tianjin/Xingang
What Benefits Do Customers Get
We are factory. (Our price will have an advantage over trading companies.)
Don't worry about the delivery date. We are sure to deliver the goods in time and quality to achieve customer satisfaction.
Product Detail
Thickness
Length
Diameter
Product photos
Zinc coating
diameter detail
Different From Other Factories
We applied for and received 3 patents (Groove pipe, Shoulder pipe, Victaulic pipe).
Port: Our factory is just 40 kilometers from Xingang port, the biggest port in the north of China.
Our manufacturing equipment includes 4 pre-galvanized product lines, 8 ERW steel pipe product lines, and 3 hot-dipped galvanized process lines.
Product Photos
Customer Case
Australian customer purchase powder coating pre galvanized steel square tube. After customers receives the goods for the first time. Customer tests adhesive strength between the powder and the surface of the square tube. Customers test powder and square surface adhesion is small. We have meetings with customers to discuss this problem and we do tests all the time. we polished the surface of the square tube. Send the polished square tube to the heating furnace for heating. We tests all the time and discuss with customer all the time. We keep finding ways. After many tests, the final customer is very satisfied with the products. Now customer purchase a large number of products from factory every month.
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 (FAQ)
What materials are available for the hollow section square tubes?
We support a wide range of steel materials including Q195 to Q345, 10#, 45#, S235JR, GR.B-D, STK500, BS1387, and custom specifications based on client needs.
What is the thickness tolerance of your square tubes?
The tolerance is based on thickness and is maintained within ±5% to ±8%. Wall thickness ranges from 0.7mm to 13mm.
What specifications of zinc coating do you offer for galvanized tubes?
We offer Pre-galvanized square tubes with a coating range of 40–220G/M², and Hot dip galvanized square tubes with a coating range of 220–350G/M².
What are the standard delivery times and loading ports?
Our standard delivery time is 25 days after receiving your deposits. The primary loading port is Tianjin/Xingang.
What payment terms do you support?
We accept a 30% T/T deposit in advance with the remaining 70% balance after the B/L copy. Alternatively, we accept 100% Irrevocable L/C at sight, or 100% Irrevocable L/C payable 20-30 days after receiving the B/L copy.
How are the square steel tubes packaged for delivery?
We package the tubes in secure bundles or prepare customized packaging configurations according to our customers' specific structural requirements.
Minjie Steel
