Q235b light square tube truss rafter frame structural steel beams
Project name: Sydney dunsteel steel structure truss
Content: Structural steel and Bracing
Total value: 813,000 usd
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
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
· 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
· Pre-assembly will be available to check the quality and
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
· 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
· Tie up all the member in case the damage during the sea
· 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