冷拔精密無縫鋼管

Jiangyin Zhengbang Tube-making Co., Ltd
high pressure hydraulic tube
Product Information:
Synopsis of Process Routing：Quality carbon steel 、cold rolling 、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：inner and outer walls of tube have high accuracy, excellent brightness, no oxidization after heat treatment, and high cleanness inside tube. 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: bright white, with high metallic luster.
Main Application：used in automotive industry, and in the occasion where the high accuracy, brightness, cleanness of the tube are required.
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Jiangyin Zhengbang Tube-making Co., Ltd.)
Norm DIN2391 EN10305,High quality carbon steel St35,St37.4,St52,cold drawing,bright heattreatmentwithoutoxidization(NBKstatus),non-destructivetesting,cleaing,phosphating,anti-rust oil dipping.This precision seamless tube with high accuracy and brightness features.
Mechanical properties:These tubes can be bent at any angel and bear the impact of high pressure,cold bending,flaring,and tensile force without cracks and breaks,oxidized residual substances on either inner or outer surface of tubes.Additionally,blockage to pneumatic,hydraulic and oil routes shall never occur.the elongation rate and tensile strength are in high standard.
our products used in industries of engineering machinery,machine tools,hydraulic machinery,shipbuilding ,automobile,heavy duty automobile,special automobile,railway locomotive,heavy duty machine,compressor,diesel engine,die casting machine,compressor,power station and boiler equipment etc