Precision Cold Rolled Seamless St52 Honed Tube
Introduction: Hydraulic cylinder tube st52 din2391 is a kind of after cold rolling processing of a kind of high precison steel tube, full name cold rolled precision seamless steel tube. Precision seamless steel tube wall inside and outside the precision seamless steel pipe seamless steel pipe without oxidation layars, under high pressure without lea, high precision, high finish, cold bending deformation, flaring, flattening without cracks,etc, it is mainly used to produce pneumatic or hydraulic components products, such as a cylinder or cylinder, are made seamless tube. the chemical composition of precision seamless steel tube with carbon sulfur C,Si, Mn, S, P, Cr.
The difference between precision steel pipe and seamless pipe:
1. the seamless steel tube with obvioue difference is that dimensional accuracy, can be up to 0.1mm.
2. high precision steel pipe diameter surface finish, the customer without processing can be used directly and ordinary seamless steel tube to the customer and lather, polishing processing.
Features:
Hydraulic cylinder tube st52 din2391 inside and outside the wall without oxidation layer, under high pressure, no leakage, high precision, high finish, cold bending deformation, flaring, flattening without cracks, surface rust proffing.
1. The smaller outer diameter
2. High precision to do small batch production
3. Cold drawn finished products of high precision, good surface quality
4.The steel pipe transverse area is more complex
5. Steel pipe is superior performance, dense metal
1. Implementation of standards: DIN2391-1, GB/T3639, EN10305.
2. Material: Steel No. ST35(E235), ST37, ST24(E255), ST52(E355), 10#, 20#, 35#, 45#
3. Specification:
A. Precision Hydraulic Cylinder Seamless Tube Od 5-120mm
B. Wall Thicknes From 0.8-15mm
C. Tube Length Fixed or Random
4. Certificate: SGS, TUV SUD, BV, ISO 9001-2011
5. Packing:
A..With Steel Belt in Bundle
B. Oiled and Packing by Pvc Film or Plastic Bags
6. Tolerance in Dimension:
| OD | GB/T3639(GB8713) | DIN2391(EN10305) | Our Tolerence |
| 4-30mm | ±0.10mm | ±0.08mm | ±0.05mm |
| 31-40mm | ±0.15mm | ±0.15mm | ±0.05mm |
| 41-50mm | ±0.20mm | ±0.20mm | ±0.05mm |
| 51-60mm | ±0.25mm | ±0.25mm | ±0.08mm |
| 61-70mm | ±0.30mm | ±0.30mm | ±0.10mm |
| 71-160mm | ±0.30mm | ±0.30mm | ±0.10mm |
| Tolerance in WT | ±0.12mm | ±0.10mm | ±0.05mm |
| Process | Diameter | Length | Precision |
| Cold Rolled | 30-100mm | ≤12 m | H8-H10 |
| Cold Draw | 30-250mm | ≤12 m | H8-H10 |
| Honing | 40-500mm | ≤12 m | H8-H9 |
| Rolling | 40-400mm | ≤7 m | H8 |
| Inner Diameter | H8 | H9 | H10 |
| 30mm | ±0.033 | ±0.052 | ±0.084 |
| 30-50mm | ±0.039 | ±0.062 | ±0.100 |
| 50-80mm | ±0.046 | ±0.074 | ±0.120 |
| 80-120mm | ±0.054 | ±0.087 | ±0.140 |
| 120-180mm | ±0.063 | ±0.100 | ±0.160 |
| 180-250mm | ±0.072 | ±0.115 | ±0.185 |
| 250-315mm | ±0.081 | ±0.130 | ±0.210 |
| 315-400mm | ±0.089 | ±0.140 | ±0.230 |
7. Mechanical Properties: | Condition | Materail Grade | T.S (MPa) | Y.S (MPa) |
| BKS | ST35 (10#) | ≥420 | ≥315 |
| BKS | ST45(20#) | ≥520 | ≥375 |
| BKS | ST52(16Mn) | ≥580 | ≥420 |
| GBK | ST35 (10#) | ≥315 |
|
| GBK | ST45(20#) | ≥390 |
|
| GBK | ST52(16Mn) | ≥490 |
|
| NBK | ST35 (10#) | 340-470 | ≥235 |
| NBK | ST45(20#) | 440-570 | ≥255 |
| NBK | ST52(16Mn) | 490-630 | ≥335 |
8. Application: Hydraulic cylinder tube st52 din2391 widely used in hydraulic system with precision steel tube, injection molding machine with precision steel tube, hydraulic press with precision steel tube, shipbuilding with steel tube, EVA foaming, hydraulic machinery, hydraulic cutting machine, shoe making machinery, hydraulic equipment, high pressure tubing, hydraulic tubing, card sets of joints, pipe joints, rubber machinery, forging machinery, casting machinery, engineering machinery, automotive high pressure steel pipe concrete pump, sanitation vehicle, automobile industry, shipbuilding industry, metal processing, military industry, diesel engine, the internal combustion engine, air compressor, construction machinery, forestrymachinery, etc.
Preicision Hydraulic Cylinder Seamless Honed Tubes Size List| OD (mm) | Thickness (mm) | OD (mm) | Thickness (mm) | OD (mm) | Thickness (mm) | OD (mm) | Thickness (mm) |
| Φ13.1 | 1.5-3 | Φ35.5 | 1.5-7 | Φ46.1 | 1.5-10 | Φ93 | 1.5-15 |
| Φ19.25 | 1.5-5 | Φ35.9 | 1.5-7 | Φ47.8 | 1.5-10 | Φ19-Φ160 | 1.5-15 |
| Φ22 | 1.5-5 | Φ36.6 | 1.5-7 | Φ49.2 | 1.5-10 |
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| Φ22.2 | 1.5-5 | Φ38 | 1.5-8 | Φ49.5 | 1.5-10 |
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| Φ25 | 1.5-6 | Φ38.4 | 1.5-8 | Φ52.3 | 1.5-10 |
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| Φ26.3 | 1.5-6 | Φ40 | 1.5-10 | Φ53.8 | 1.5-10 |
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| Φ27 | 1.5-6 | Φ40.2 | 1.5-10 | Φ57 | 1.5-10 |
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| Φ28 | 1.5-6 | Φ40.9 | 1.5-10 | Φ59 | 1.5-10 |
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| Φ30 | 1.5-6 | Φ41.3 | 1.5-10 | Φ60 | 1.5-11 |
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| Φ30.25 | 1.5-6 | Φ41.6 | 1.5-10 | Φ62.5 | 1.5-11 |
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| Φ30.9 | 1.5-6 | Φ42 | 1.5-10 | Φ74 | 1.5-11 |
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| Φ31 | 1.5-7 | Φ43 | 1.5-10 | Φ75 | 1.5-11 |
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| Φ32 | 1.5-7 | Φ44.5 | 1.5-10 | Φ76 | 1.5-11 |
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| Φ35 | 1.5-7 | Φ45.8 | 1.5-10 | Φ89 | 1.5-15 |
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Qingdao Rehond Precision Tube Co., Ltd. A professional manufacturer of precision cold drawn/rolled seamless steel tubes, ERW steel pipe and fence panel, located at Jimo City, Qingdao China.
We specialized in producing cold drawn/rolled seamless steel tube according to ASTM, JIS, DIN, EN and GB standard with material of carbon steel and alloy steel, we have electric heat treating line, can supply BK, BKW, GBK, NBK and BKS. The products are widely used in the automotive industry, agricultural machinery, engineering machinery, shipping industry, etc. Such as Auto part, Auto liners, soil tank of jack\oil tank of lifting, electrical Crust\liquid tank of compressor, tunnel and machinery project, heat exchanger and condenser etc.
The output of our company is 10, 000 tons per year. We can produce all kinds of seamless steel tubes with the OD from 19mm to 121mm and WT from 1mm to 15mm according to the standards of GB3639, EN10305, DIN2391, DIN2393, ASTM A519, ASTM A179, ASTM A106. Also passed the ISO9001-2008 quality system authentication.
About ERW pipe can produce almost 200 types of products in 14 series in accordance with GB/T 13793-1992, ASTM A500, DIN 2394, BS 1387 and JIS 3445, all of which are used for fitness equipment, medical equipment, bicycles, steel furniture, display stands, shelves and motorcycles, with an annual production capacity of 120, 000 tons. What's more, our products have been available in Mexico, Australia, Southeast Asia, Western Europe, Korea, and so on,
And we will continue to win markets with high quality products, Our expertise in this field will bring you high value and great success and we are ready anytime to team up with you in tubular solution.
