Thesetubes are manufactured according to DIN 73000, DIN2391. All aspects such asmechanical properties and dimension tolerances highly conform to therequirements of diesel engine tube. In view of oil tube special qualityrequirements, we use high quality tube blank from Xingcheng steel or Bao steelwhich is best in mechanical properties regarding elongation rate, tensilestrength, especially high pressure resistance. Standard: DIN 2391,EN10305-1
Grade:ST30Al, ST35, ST37, ST45, ST52, ST52.3
Specification:6 X 1.2 ,6 X 1.5 ,6 X 1.8 ,6 X 2 etc.
Surface:bright and smooth
Tube with zinc
Thepipes is apply to all kinds of Auto-oil piping, braking piping, boost-steeringgear piping.
Tubewith color zinc (A>=25%)
Tubewith white zinc (A>=25%)
Tubewith olive green zinc (A>=30%)
SIZES:
O.D4.76mm X 0.7+/-0.01mm
O.D6.00mm X 0.7+/-0.01mm
O.D6.35mm X 0.7+/-0.01mm
O.D8.00mm X 0.7+/-0.01mm
O.D9.52mm X 0.7+/-0.01mm
O.D10.00mm X 0.7+/-0.01mm
O.D12.00mm X 0.7+/-0.01mm
Mechanicalfunctions:
Rm>=290MPa
Rel>=180MPa
IDcleanliness: residuum <= 0.16g/m2
Saltspray test: no rusty on OD in 144hours for white zinc and color zinc tubes, andno rusty on OD in 216hours for olive green zinctubes.
CNG High pressuretube
Theproduct widely used in CNG fuel-auto and double fuel-auto, auto-braking system;auto-oil system, fuel system,etc.
Standard:DIN 2391
Grade:ST35, ST37
Specification:6*1 , 8*1
Surface:color zinc plated
Mechanicalproperty: normal utilization pressure:25-35MPa(250-350kg)
mostburst pressure:154MPa(1540kg)
