1. product name: Best quality BHG1 steel made of cng pipe
2. standard and Material: ISO15500, BHG-1 or as the customers' requirement to choose the material
3. Treatment: Soft annealed, hot dipped galvanized; Air-tight test 30MPa
4. Product usage: CNG high pressure tube is used for LPG , CNG sequential injection system conversion kits.
5. Tube surface with 5-8 um zinc coated, which can keep 72-100 hour salt spray Test without red rust.
6. Both ends of tube without rag, corner processing, smooth, absence of istortion.
7. Steel tube is welding tube with annealing treatment before zinc plating.
8. Inside of tube should be no rust
9.Bending tube with tools of 25mm radius, bending torsion should no more than 11NM
10. Packing: in carton case
11. PVC package requirement

Steel tube should be covered with PVC after zinc plating, single wall thickness is 0.65±0.2mm.
There is 20-50mm naked tube without PVC at the roll ends. Both ends are fit with white plastic jacket.

Chemical composition and mechanical property

Chemical Composition 

Size tolerance(mm)

Mechanical Property 

Package standard

Carton box

A. Pack 20 rolls of the length 6 m tube

B. Pack 20 rolls of the length 5.5 m tube

C. Pack 20 rolls of the length 4.5 m tube