Honed Tube and Piston Rod



GradeST 52stainless steel, alloy steel, and special steel
Size range
Inside diameter: from 40 to 1000mm,
Max length:20 meters.


Straightness: 0.5 /1000
Tolerance EXT: DIN 2391
Tolerance INT: ISO H7, H8, H9
Roughness(Ra): 0.1 to 0.2
Impact test: -20, 27 J (only for special requirement)
Typecold drawing, normalizing treatment, honing.

ST 52 CHEMICAL COMPOSITION (%)
Si
(Max)
Mn
(Max)
C
(Max)
P
(Max)
S
(Max)
0.55
1.6
0.22
0.025
0.025


MECHANICAL PROPERTIES
Tensile strength
Min		 Yield Point
Min		 Elongation
% Min
580 N/mm2 420 N/mm2 10


Package:
Anti rust oiled coating on the inside and outside of the surface, plastic caps at both ends.
banding with steel/plactic strips, braiding parcel at outside.



Chrome Plate Rod

Material: CK45stainless steel, alloy steel and special steel.
Size range:
Outside diameter: from 12 to 500 mm
Max length: 16 meters

CK45 CHEMICAL COMPOSITION (%)
C Mn Si
Max		 S
Max		 P
Max
0.40-0.50 0.60-0.90 0.035 0.035 0.035

MECHANICAL PROPERTIES
UTS Min Y.S. Min E % Min CHARPY CONDITION
630 N/mm2 340 N/mm2 16 NORMALISED
600 N/mm2 400 N/mm2 16 41J HARDENED AND TEMPERED


Supply condition: Chrome plated
Chrome thickness: 20 TO 50 Micron
Surface roughness: Ra 0.2 Micron
Outer diameter tolerance: ISO f7
Ovality: Half of the tolerance ISO f7
Straightness: 0.1mm/m

Corrosion resistance: Test in natural salt spray according to ASTM B 117-72 hours.
Packing: Anti rust oil to be spread on rod surface and each rod to be packed in paper roll and then in wooden box or plactic bag.



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