Hydraulic Galvanized Steel Pipe

Hydraulic steel tube
Standard		Material	Delivery	Surface	Sizes
DIN	2391/1630/2445	ST37.4 ST52.4	NBK	1) BA 2)Black phosphating 3) Galvanizing	OD2 -60mm × WT0.3 -10mm
EN	10305-4	E235 E355	(+)N	1) BA 2)Black phosphating 3) Galvanizing
BS	3602	CFS 360		Zinc Layer thickness more than 8um
Other steel grades also available upon request

Standard		Material	Delivery	Surface	Sizes
DIN	2391/1630/2445	ST37.4 ST52.4	NBK	1) BA 2)Black phosphating 3) Galvanizing	OD2 -60mm × WT0.3 -10mm
EN	10305-4	E235 E355	(+)N	1) BA 2)Black phosphating 3) Galvanizing
BS	3602	CFS 360		Zinc Layer thickness more than 8um
Other steel grades also available upon request

SIZE TOLERANCE
NAME	Scope (mm)	GB Series (mm)	DIN series (mm)	Enterprise internal control standards (mm)	Special high-precision (mm)
Out diameter	2-30	±0.10	±0.08	±0.05	±0.03
	31-40	±0.15	±0.15	±0.05	±0.03
	41-50	±0.20	±0.20	±0.08	±0.03
	51-60	±0.25	±0.25	±0.08	±0.03
Wall thickness	0.3-10	±10%; MIN±0.15	±10%	±10%; MIN±0.05	±10%; MIN±0.03