Specifications
H7 H8 H9 H10 CK45 honned tube
1.ID30-250mm
2.Technology:Cold Drawn
3.Better Roughness
4.Top quality
H7 H8 H9 H10 CK45 honned 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!
RECISION TUBE ,WITH CHINESE STANDARD GB3639-2000,SIZE FROM 40MM-800MM LENGTH 14METERS MAX , YEARLY CAPACITY 2800TONS, THE TUBE USE FOR ENGINEERING INDUSTRY, METALLURGY INDUSTRY, PLASTIC INDUSTRY,, MINER INDUSTRY,,AND SO ON.
Pressure pneumatic cylinder size and precision |
Processing | Diameter(mm) | Long(m) | Straight(mm/m) | Diamet accuracy | Thickness | roughness(μm) | Drawing | 40-320 | ≤12M | 0.2-0.5 | H8-H10 | ±5% | 0.8-1.6 | Rolling | 30-100 | ≥12M | 0.2-0.5 | H8-H10 | ±5% | 0.8-1.2 | Drawing-May | 40-500 | 8M | 0.2-0.3 | H7-H9 | ±5% | 0.2-0.8 | Drawing-roll | 40-400 | 7M | 0.2-0.3 | H8-H9 | ±5% | 0.2-0.4 | Deep-hole | 320-500 | 8M | 0.2-0.3 | H7-H9 | ±8% | 0.2-0.8 | Deep-rolling | 320-500 | 7M | 0.2-0.3 | H8-H9 | ±8% | 0.2-0.4 |
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Mechanical Properties |
Steel | Tensile StrengthσbN/mm2 | YieldσsN/mm2 | Elongationσs% | Hardness HB | 20# | 530 | 505 | 12 | 175 | 35# | 610 | 575 | 8.5 | 190 | 45# | 660 | 630 | 6 | 207 | 16Mn | 595 | 570 | 9 | 190 | 27SiMn | 840 | 805 | 7.5 | 230 |
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Diameter tolerance GB1801-79 |
Inner Diameter(mm) | Diameter deviation | H7 | H8 | H9 | H10 | 30 | +21 0 | +33 0 | +52 0 | +84 0 | >30-50 | +25 0 | +39 0 | +62 0 | +100 0 | >50-80 | +30 0 | +46 0 | +74 0 | +120 0 | >80-120 | +35 0 | +54 0 | +87 0 | +140 0 | >120-180 | +40 0 | +63 0 | +100 0 | +160 0 | >180-250 | +46 0 | +72 0 | +115 0 | +185 0 | >250-315 | +52 0 | +81 0 | +170 0 | +210 0 | >315-400 | +57 0 | +89 0 | +140 0 | +230 0 |
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Production Process:
- Pretreatment : Pickling—Phosphating—Saponification
- Cold drawn/cold rolled
- Annealing furnace——+SR
- Straightener—— Straightening
- Products inspecting
- Skiving and Roller Burnishing
- SGS test
- Finished Products
Xinpeng Have passed The ISO9001 2008
If any requirement or question , please feel free to contact us!