The design service life of scaffold tubes (scaffolding steel pipes) is 50 years, but it is generally not achieved. The life span ratio is shown in the following table:

Steel Consumption, Load-bearing Capacity, Project Investment, Construction Efficiency, Assembly Costs, Service Life

Connector Pipe Fitting  100%  40%  100%  50%  100%  60%

Adjustable Heavy Duty Gate Frame Pipe 60% 100% 60% 100% 40% 90%

Bolt-Connect Steel Pipe Frame              75%          90%          85%          85%          50%          90%

T楔盘式架管 70% 90% 75% 100% 45% 100%

There is no specific service life at present; as long as the scaffold tubes (steel pipes for scaffolding) do not rust, degrade, or bend, they can be used for a long time.