Precision steel tube DIN2391/EN10305

Application
Cold drawn or cold rolled precision seamless steel tubes for hydraulic pressure and pneumatic services.

For Auto. Use, machinery use, oil cylinder tube, motorcycle shock reducer use, auto shock reducer inner cylinder, etc.

Size
O. D.: 6.0-650.0mm W. T.: 1.0-65mm Length: Max. 12000mm

Steel Grade and Chemical Composition(%)
Standard   Grade   C??   Si??   Mn   P??   S??
DIN17175   St35   0.17   0.35   ??0.40   0.025   0.025
St45   0.21   0.35   ??0.40   0.025   0.025
St52   0.22   0.55   ??1.60   0.025   0.025

Mechanical Properties
Rm: Tensile Strength(Mpa) ReH: Yield Point(Mpa) A%: Elongation Mpa=N/mm
Standard   Grade   BK   BKW   BKS   GBK   NBK
Rm??   A%??   Rm??   A%??   Rm??   ReH??   A%??   Rm??   A%??   Rm   ReH??   A%??
DIN2391   St35   480   6   420   10   420   315   14   315   25   340-470   235   25
St45   580   5   520   8   520   375   12   390   21   440-570   235   21
St52   640   4   580   7   580   420   10   490   22   490-630   355   22

Steel Grade and Chemical Composition(%)
Standard   Grade   C??   Si??   Mn??   P??   S??   Al
EN10305   E215   0.10   0.05   0.70   0.025   0.025   ??0.025
E235   0.17   0.35   1.20   0.025   0.025   /
E355   0.22   0.55   1.60   0.025   0.025   /

Mechanical Properties For EN10305
Rm: Tensile Strength(Mpa) ReH: Yield Point(Mpa) A%: Elongation Mpa=N/mm
Grade   Minimum values for the delivery condition(Exclude +N Rm)
+C   +LC   +SR   +A   +N
Rm   A%   Rm   A%   Rm   ReH   A%   Rm   A%   Rm   ReH   A%
E215   430   8   380   12   380   280   16   280   30   290-430   215   30
E235   480   6   420   10   420   350   16   315   25   340-480   235   25
E355   640   4   580   7   580   450   10   450   22   490-630   355   22