Product Description   	 			1.Commodity:
 			30g 40g 50g 60g zinc steel rectangular gi metal iron square pipe tube / black iron galvanized square hollow section
 		
 			2. Side Length:
 			10mm*10mm-1200mm*1200mm
 		
 			3. Thickness:
 			0.6mm-60mm
 		
 			4. Length:
 			5m-14m,5.8m,6m,10m-12m,12m or as customer's actual reques
 		
 			5. Producing Standard:
 			ASTM A500,JG 178-2005,JIS G3466,EN10210
 			GB/T6728-2002,GB/T6725-2002, GBT3094-2000,or according to technical protocol
 		
 			6. Main Material:
 			ASTM A53,ASTM A106 ASTM A210,ASTM A283,ST33, ST37-2,ST52, DIN1626,DIN1629,STPY41,G3452,G3457, S235,S355, Q195-Q235,Q345,20#, alloy
 			steel etc
 		
 			7. Technology:
 			Seamless Or Welding
 		
 			8. Surface treatment:
 			Paint oil; Varnish; Hot galvanized; Cold galvanized;
 			Galvanize the raw strip steel Or according to customer's requirements.
 		
 			9. Package:
 			Tied with steel trips, then wrapped by plastic material.
 			Or according to customer's requirements.
 		
 			10. Usage:
 			Widely used in mechanical manufacture, construction field, metallurgy industry, farm vehicles, agriculture greenhouse, automotive
 			industry, railway, highway guardrail, container frame, furniture, decoration, steel structure etc
 		
  

Square Pipe size chart
Square Hollow Section	Thickness
2020 2525 30*30	1.2-3.0
4040 5050	1.2-4.75
60*60	1.2-5.75
7070 8080 7575 9090 100*100	1.5-5.75
120120 140140 150*150	2.5-10.0
160160 180180 200*200	3.5-12.0
400400 280280 450300 450200	5.0-20.0
250250 300300 400200 350350 350*300	4.5-15.75

Production process

Detailed Images

Packing&Delivery

PACKING

We will select the corresponding packaging method according to the different types of products. We will do our best to reduce the
 loss in transportation.

TRANSPORTATION

Before the shipment, there will be professional quality inspection personnel to carry out on-site testing of materials,
 specifications, etc, and photographed and archived. During the cargo transportation process, the customer can track and inquire
 about the progress of the logistics

INSPECTION

INSPECTION

Our products are checked through 16 processes at least , and have quality inspection reports from authoritative third
 parties.Professional inspection is provide to ensure that the weight of the goods is sufficient.

Gi Galvanized Steel Square Tube 4040 5050 1.2mm-4.75mm

Pre-galvanized Steel Pipe

Greenhouse Tunnels

Steel Pipe Processing

Greenhouse Tunnels Metal Parts

Sauna Door Hinges

Door Hinges

Door Handles

Flat Oval Steel Tube

Mechanical Processing Parts

Transmission Parts

Deutz Engine

Window Hinges

Corral Steel Pipe

Gi Galvanized Steel Square Tube 4040 5050 1.2mm-4.75mm

st52 galvanized steel tube

e355 galvanized steel tube

e235 e355 galvanized steel tube

1.Commodity:	30g 40g 50g 60g zinc steel rectangular gi metal iron square pipe tube / black iron galvanized square hollow section
2. Side Length:	10mm10mm-1200mm1200mm
3. Thickness:	0.6mm-60mm
4. Length:	5m-14m,5.8m,6m,10m-12m,12m or as customer's actual reques
5. Producing Standard:	ASTM A500,JG 178-2005,JIS G3466,EN10210 GB/T6728-2002,GB/T6725-2002, GBT3094-2000,or according to technical protocol
6. Main Material:	ASTM A53,ASTM A106 ASTM A210,ASTM A283,ST33, ST37-2,ST52, DIN1626,DIN1629,STPY41,G3452,G3457, S235,S355, Q195-Q235,Q345,20#, alloy steel etc
7. Technology:	Seamless Or Welding
8. Surface treatment:	Paint oil; Varnish; Hot galvanized; Cold galvanized; Galvanize the raw strip steel Or according to customer's requirements.
9. Package:	Tied with steel trips, then wrapped by plastic material. Or according to customer's requirements.
10. Usage:	Widely used in mechanical manufacture, construction field, metallurgy industry, farm vehicles, agriculture greenhouse, automotive industry, railway, highway guardrail, container frame, furniture, decoration, steel structure etc

Gi Galvanized Steel Square Tube 40*40 50*50 1.2mm-4.75mm

Pre-galvanized Steel Pipe

Greenhouse Tunnels

Steel Pipe Processing

Greenhouse Tunnels Metal Parts

Sauna Door Hinges

Door Hinges

Door Handles

Flat Oval Steel Tube

Mechanical Processing Parts

Transmission Parts

Deutz Engine

Window Hinges

Corral Steel Pipe

Gi Galvanized Steel Square Tube 40*40 50*50 1.2mm-4.75mm

st52 galvanized steel tube

e355 galvanized steel tube

e235 e355 galvanized steel tube

Gi Galvanized Steel Square Tube 4040 5050 1.2mm-4.75mm

Gi Galvanized Steel Square Tube 4040 5050 1.2mm-4.75mm