Welcome to visit Boai Steel Group Website!
Welcome to visit Boai Steel Group Website!
Welcome to visit Boai Steel Group Website!
Location:Product Center >> ERW Steel Pipe >> Firefighting Pipe
  • 产品名称: Firefighting Pipe
  • 产品编号: B012
  • Views : 45

Name of product: Firefighting Pipe
Standard: GB/T13793-2008
Grade of Steel: Q345B
Specification: Φ133×4.0×12000mm
Technical requirement
O.D. tolerance: PD.A≤±1.0%D;
Tolerance of Wall Thickness: PT.A≤±10.0%t;
Out of Roundness:≤0.75D;
Tolerance of Length : 0—+20mm;
Straightness: PS.A≤1.5mm/m;
Out of squareness: ≤3mm;
Outside bur: almost abreast with the base metal
Inside bur: -0.20—+0.50mm。
Hydrostatic Pressure Test≥5MPa   time holding test pressure≥5s