Qingdao KaFa Fabrication Co., Ltd.
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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.
Quality control system
· Purchase material from famous steel manufacturer, supply traceable mill certificate.
· Before we use the material, we will make a third-party inspection,
· During fabricating, we have 5 QC to inspect every piece member.
· Before we load the steel into the container, we will arrange all the managers to check the steel member.
· Project Supervisor from customer will be welcomed during our fabrication.
· Pre-assembly will be available to check the quality and connection.
Technology service
Help customer to replace the foreign material by chinese material , Modify the shop drawings by chinese material ( but need your qualified engineer check and confirm)
· Modify and optimise shop drawings to save time and money.
· Help you quote your project by free
· Answer your other technology questiones
Loading management
· Before loading we will arrange all the managers to check the goods ( quality and quantity).
· We will make the loading container list before our loading
· We have one manager to check the quantity during our loading containers
· Tie up all the member in case the damage during the sea transportation
· After loading containers, Every steel member ( serial no. from your drawings) will be marked in the loading container list, then we will send to you, you could check the container list to find every member.