Q235b Light Square Tubing Trusses , Grey Metal Structural Beams For Surport

Q235b light square tube truss rafter frame structural steel beams

Project name: Sydney dunsteel steel structure truss

Client: Dunsteel

Content: Structural steel and Bracing

Quantity: 72Tons

Total value: 813,000 usd

Quality control

QC/Technical Support
Raw material quality control
Thickness tolerance <0.25mm
Yield and tension strength testing in-house
Third party inspection certificate
Supply traceable mill certificate

Structural steel fabrication quality control
100% testing dimension tolerance <1mm
20% sample welding line ultrasonic testing, no fault, full penetration.
20% magnetic powder testing, no bubble, no defect, Smooth and Full
Supply third-party inspection assistance.

Shot blasting and painting quality control
Shot blasting grade Sa. 2.5 Metal luster, no rust, no oil dirt, no welding spatter, Roughness >75um
Paint primer within 5 hours after shot blasting, Holiday-free coatings, smooth, No dust, Dry Film Thickness (DFT) >75UM

Pre-assembly testing the connection details.

Why us?

Qingdao KaFa Fabrication Co., Ltd. is a professional steel structure company who could provide you one-stop solution of the steel structure projects . We specialize in Design, Manufacture,Delivery and Installation of the steel structure building. The floor space is 23,000㎡, and the workshop area is 12,000㎡. We own the light/heavy H steel production line, BOX production line, C/Z purlin production line and various types of profiling steel sheet machines. Our products have been exported to Australia, South America, Southeast Asia, Middle East and Africa. We are proud of helping our customers to build their dream to reality.