Seamless hydraulic precision steel tubes DIN2391 ST37.4 High precision

M Seamless hydraulic precision steel tubes DIN2391  ST37.4 High precision

Seamless hydraulic precision steel tubes DIN2391  ST37.4 High precision

Production method:Quality carbon steel--Cold drawing--Bright heat treatment without oxidization (NBK status)--nondestructive testing,In the wall honing and inside flushing under the high pressure--Antirust oiling outside surface--plastic capping on both ends.

Main features:High accuracy,excellent brightness,no oxidization on the outer and inner walls after heat treatment.high cleaness inside wall.The steel tube is able to stand high pressure.No deformation after cold bending,no crack after flaring and flattening,The complicated geometrical forming and machining can be realized.Color of tube: gray with white.

Application: to be used in hydraulic system,automobile and in the occasion where the high precision,brightness,cleanness and mechanical properties of the tube are required.

ST37 ST35 St37.4 St52 E235 E255 E355 etc material is avaliable.

Delivery condition:BK(+C),BKS(+SR),BKW(+LC),GBK(+A),NBK(+N).

Spec: OD4-114.3mm

WT0.5-15mm

Pls feel free contact if any special requests on material and sizes.

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