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Honed Tube

Honed tube
Honed tube for hydraulic cylinders are obtained from high quality cold drawn tubes, available in a wide dimensional range, ranging from 40 mm ID to 250 mm ID

International Standards
EN 10305-1: E355
Werkstoff Nr. :1.0580
DIN 2391:St52-3
STAS:OL52-3
AFNOR:E36-4
BS :4360-50D
UNI EN 10025:Fe510
JIS :SM490A
GOST 19281-89 :17G1S
AISI / SAE / ASTM:1024

Quality specifications
Steel grade :E355 (EN 10305-1) / St52-3 (DIN 2391)
Heat treatment :+SR (EN 10305-1) / BK+S (DIN 2391)
Diameter range (metric) :from OD 40 x ID 30 mm to OD 300 x ID 250 mm(bigger dimensions: upon request)
Diameter range (imperial) :from OD 2 x ID 1 to OD 8 x ID 7(bigger dimensions: upon request)
Tolerance :ISO H8 (EN ISO 286-2)
Standard length :6000 8000 mm for ID 70 mm7000 9000 mm for ID >75 mm(upon request: special lengths)
Surface finish (ID) :Ra 0.20 m skived and roller burnished tubeRa 0.40 m honed tube
Straightness :max. 1 mm : 1000 mm
Total deviation- tubes with length 6 m: max. 3.5 mm : length
- tubes with length > 6 m: for each metre over 6 m
the tolerance must be increased by 0.5 mm
Eccentricity : 10% according to the standard EN 10305-1
Roundness :within the limits of the ID tolerances