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Help CenterSeamless Precision Din2391 St52 Hydraulic Steel Tube
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Seamless Precision Din2391 st52 hydraulic steel tube
Yantai Xinpeng Steel Is professional supplier on hydraulic cylinder tubes,bored tubes, Honed tubes, Cold drawn tubes.Seamless steel tubes, Cold drawn weld tubes!
Specification:
Product name: Professional Supplier hydraulic cylinder Honed tube
1. MATERIAL SPECIFICATION AND REF. DOCUMENT
ST52,BK+S,DIN2391 OR Equivalent
2. CHEMICAL COMPOSITION (%)
| Grade Elements | C(max) | Si(max) | Mn | P | S(max) |
| ST35 | 0.17 | 0.35 | ≥0.40 | 0.025 | 0.025 |
| ST42 | 0.21 | 0.35 | ≥0.40 | 0.025 | 0.025 |
| ST52 | 0.22 | 0.55 | ≤1.60 | 0.025 | 0.025 |
3. MECHANICAL PROPERTIES
Elongation(Min) Y.S (Min.) UTS (Min.)
≥15 470 N/MM2 580 N/MM2
4. SUPPLY CONDITION
Cold drawn seamless steel tube, stress relieved and honed or skived roller burnished
5. SURFACE ROUGHNESS
Ra = 0.4~0.8Micron
6. TOLERANCES ON INNER DIA
ISO H8 H9
7. STRAIGHTNESS
≤ 0.5 mm/M
8. ID TOLERANCE
| SIZE of I.D | I.D.Tolerance | Tolerance of wall thickness | ||
| H8 | H9 | H10 | ||
| 30 | +0.0330 | +0.0520 | +0.0840 |
<120mm(O.D) ±5% ≥120mm(D.D) to 210mm ±7.5% >210mm ±10% |
| >30-50 | +0.0390 | +0.0620 | +0.1000 | |
| >50-80 | +0.0460 | +0.0740 | +0.1200 | |
| >80-120 | +0.0540 | +0.0870 | +0.1400 | |
| >120-180 | +0.0630 | +0.1000 | +0.1600 | |
| >180-250 | +0.0720 | +0.1150 | +0.185 | |
| >250-315 | +0.0810 | +0.1300 | +0.2100 | |
| >315-400 | +0.0890 | +0.1400 | +0.2300 | |
9. LENGTH AND CUT TOLERANCE
Length ≤ 500mm , +2mm
500mm <Length ≤ 2000mm, +3mm
2000mm <Length≤ 5000mm, +5mm
5000mm < Length≤ 7000mm, +10mm
10. TUBE ENDS
Tube ends shall be cut nominally square to the axis and free from burs
11. APPEARANCE
Tube shall have a smooth internal and external surface consistent with cold working
process, tube inner surface should be free from rust, scratches and other surface
irregularities.
12. CERTIFICATION
Material certificates will be send.
13. PACKING
Anti-rust oil to be applied on material. Ends closed by plastic cap . Bundled by steel strips,braiding parcel.
14. SCOPE
Hydraulic cylinder tube for swivel crane, injection machine and construction
15.Production Process:
- Pretreatment : Pickling—Phosphating—Saponification
- Cold drawn/cold rolled
- Annealing furnace——+SR
- Straightener—— Straightening
- Straightness inspecting
- Dimension inspecting
- Sawing
- Lathe
- Polishing
- Products inspecting
SRB or Honing
Xinpeng Have passed The ISO9001 2008
Xinpeng mold
Application:
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, forestry machinery, etc
.
Send Inquiry to This Supplier
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