Main Norm:
DIN2391-94/C DIN1630 EN10305 DIN2445 ASTMA179 SAE J524 JIS G3454
Main Steel Grade:
ST35/E235 ST37.4 ST45/E255 ST52/E355
Delivery Condition:
NBK(+N) BK(+C) GBK(+A) BKW(+LC) BKS(+SR)
Synopsis of Process Routing:
High quality carbon steel, cold drawn, bright heat treatment without oxidization (NBK status),nondestructive testing, The inner wall of the steel tube is washed with special equipment and washed under 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 cleanness 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.
Main Application:
Used in hydraulic system, automobile and in the occasion where the high precision, brightness, cleanness and mechanical properties of the tube are required.