Honed tubes are used in the manufacture or repair of hydraulic cylinders, which are produced from our cold-drawn seamless steel tubes, with the inside diameter achieved by ID honing or SRB (Skinning and Rolling) machining. Honed tubes have precise ID tolerances and a smooth, bright surface finish. The production standards are in accordance with DIN 2391, EN10305, ASTM A519.GNEE Group can provide Honed Tubes in the following grades: ST52.3, E355, STKM13C, C20, CK45, 4140, 42CrMo and so on. If you need honed tube, please contact us.
Honed Cylinder Tube Specification
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Standard |
DIN2391, EN10305, JIS G3445, ASTM A519, GB/T 8713... |
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Material |
ST45, ST52, E355, E355SR, STKM13C, SAE1026, 20#, Q235B, CK45... |
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Heat treatment |
BK+S |
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Specification |
Outer diameter(mm) |
Inner diameter(mm) |
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50-300mm |
40-250 |
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I.D Tolerance |
H8-H9 |
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Length |
3-9m (Customers usually choose the 4~5.8m) |
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Straightness |
1/1000 |
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ID roughness |
RA 0.4micron(max) |
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Technology |
Honed & SRB(SKIVED AND ROLLER BURNISHED ) |
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FAQ
Q1: Are you a manufacturing company or a trading company?
We are manufacturer with 16 years of experience in manufacturing steel and exporting.
Q2: How do we ensure the quality?
We always make samples before mass production and final inspection before shipment;
Q3: What are your payment methods?
1. T/T: 30% deposit in advance, balance 70% before shipment.
2. 30% down payment, balance 70% payable at sight.
3.Negotiable
Q4: Can you provide material certificate?
Yes, we can provide Material Test Certificate (MTC).
Q5: Can you provide samples?
Yes, we can provide samples for you, but you need to pay the sample fee and shipping fee first. We will refund the sample fee after you place the order.
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