Product Description1. Description: Honed tube is a kind
of smooth bore steel tube used to manufacture hydraulic cylinder
barrels that is the core part of a piece of hydraulic
cylinder. 2. Commodity: Cold drawn seamless honed tube
for hydraulic cylinder3. Size range: 40mm*30mm-580mm*500mm4.
Available steel grade: SAE/AISI: SAE1020, SAE1026,
SAE1045, SAE4130, SAE4140DIN: ST52, ST52.3,
ST52.4EN: E355, C45E, 25CrMo4, 42CrMo4, CK45, S45C, E410,
E470GB: 20#, 45#, 16Mn, Q345B, Q345C, Q345D, Q345E, 25Mn,
27SiMn, 5. Manufacture method: Cold rolled, hydraulic
cold drawn, hot rolled+deep hole boring6. Delivery
condition: BKBKWBKSGBKNBKQ+T+C+LC+SR+A+NCold rolledCold
drawnStress relievedAnnealedNormalizedQuenched+Tempered7. Bore
treatment: Honing, skiving&roller burnishing8. Bore
roughness control: Ra0.25um max or Ra0, 35um max for honed
tubes, Ra0.25um max for skived&roller burnished tubes. 9.
End finish: Plain ends with square cuts, free of burrs for
honed tubes. Little bevelled ends for skived&roller burnished
tubes. 10. Standard export packing: In bundles tied with
steel strips. Int&ext oil coating. End plastic caps. External
packing by PVC bags and knit bags. 11. Customized packing and
marking can be provided upon request. 12. H8
tolerance: ID rangeToleranceID rangeTolerance18<
d ≤30+0/+0.033180< d ≤250+0/+0.07230<
d ≤50+0/+0.039250< d ≤300+0/+0.08150<
d ≤80+0/+0.046300< d ≤315+0/+0.08180<
d ≤120+0/+0.054315< d ≤400+0/+0.089120<
d ≤180+0/+0.063400< d ≤500+0/+0.09713. Difference
between honed tube and skived&roller burnished tube: In
hydraulic cylinder industry, there are 2 solutions for bore
treatment: Honing, and skiving&roller burnishing. Honing or
skiving&roller burnishing leads to different internal surface
image, but both ensure good roughness. FAQ1.
MOQ: Generally Min Order Quantity can be 2-3 tons/size for
tubes with OD below 250mm, and 10 tons/size for tubes with OD above
250mm. Sometimes, it depends on steel grade you need. If you need
special grade like E410, E470 or alloy steel tube, MOQ should be 10
tons/size at least. 2. Delivery Time: Generally, our
delivery time for honed tubes is around 40-60 days depending on the
sizes and quantities. It will take us 15-30 days to get raw
material. For example, if you need 3 tons of small size honed
tubes 50mm*40mm with roughness of Ra0.25um max, it will take us at
least 30 days to hone this
size. 3. Warranty&Guarantee: Warranty&guarantee
period is 6 months since we deliver the tubes, and we are not
responsible for quality problem caused by wrong unloading or
storage after shipment. We welcome customer's inspection before
shipment. 4. Payment Method: We accept payment method
like T/T, L/C, or D/P, but it depends on our investigation about
customers. We have a solution to evaluate the credit of
customers from all over the world, and time and amount of D/P we
can release is determined by the evaluation. 5. Quality
Control: 90% of the tubes are made from hot rolled seamless
pipes. So, quality of raw material determined quality of finished
tubes. We purchase raw material from stable suppliers who are
leading steel mills, and we inspect the raw material as per the
specifications. During our production procedure, there is
inspection and quality control in every stage. Company
ProfileWe are a manufacturer of cold drawn, cold rolled, and
hydraulic cold drawn steel tubes with OD upto 356mm since 2002.
Covering an area of about 32000M2, we have 12 standard workshops
with 2 hydraulic cold drawing benches, 4 chain cold
drawing benches, and 2 ERW mills. Our facilities covers all
the production procedures from pickling, cold drawing, heat
treating, saw cutting, straightening, inspection, packing to
further machining &turning, cold drawing die fabrication, and
equipment repairation&maintenance. /* March 10,
2023 17:59:20 */!function(){function s(e,r){var
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