| Model: | Iron-c |
|---|---|
| Brand: | ironsteel |
| Origin: | - |
| Category: | Construction & Decoration / Pipe, Tube & Parts / Steel Pipe & Tube |
| Label: | seamless steel pipe , cold roll steel pipe , precision steel pipe |
| Price: |
US $600
/ ton
|
| Min. Order: | 5 ton |
| Last Online:23 Sep, 2015 |
We are professional manufacturer of cold drawn seamless steel pipe in China. Our seamless steel pipe with very high precision of size
Standard: GB/T8162, GB/T8163, GB/T3639, DIN2391-2
Steel material: 20#(AISI 1020/DIN1.0402 C22), 45#(ASTM 1045,DIN45), 20Cr, Q345B, etc
Technique: Cold rolling
OD: 21mm~416mm
Wall thickness: 0.8mm~20mm
Toleraance of size: ±0.05mm(outer diameter).
Usage: widely used for mechanical processing, Automobile industry, hydraulic equipments
Advantages of our high precision seamless steel pipe:
1. Smaller caliber
2. Accept small qty order
3. Good surface treatment
4. The pipe with superior performance, suitable for mechanical making
Accurate size
Perfect surface treatment
Anti-corrosion Packing
Final Supply Conditions
| Designation | Symbol | Description |
| Cold finished (hard) | BK | Tubes do not undergo heat treatment following the final cold forming and,thus, have a rather high resistance to deformation |
| Cold finished (soft) | BKW | The final heat treatment is followed by cold drawing involving limited deformation.Appropriate further processing allows a certain degree of cold forming(e.g. bending expanding). |
| Cold finished and stress-relleved | BKS | Heat treatment is applled following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree |
| Annealed | GBK | The last cold forming process is followed by annealing in a controlled atmosphere |
| Normalized | NBK | The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere |
Preicision Seamless Tube 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-Φ121 | 1.5-15 |
| Φ22 | 1.5-5 | Φ36.6 | 1.5-7 | Φ49.2 | 1.5-10 | ||
| Φ22.2 | 1.5-5 | Φ38 | 1.5-8 | Φ49.5 | 1.5-10 | ||
| Φ25 | 1.5-6 | Φ38.4 | 1.5-8 | Φ52.3 | 1.5-10 | ||
| Φ26.3 | 1.5-6 | Φ40 | 1.5-10 | Φ53.8 | 1.5-10 | ||
| Φ27 | 1.5-6 | Φ40.2 | 1.5-10 | Φ57 | 1.5-10 | ||
| Φ28 | 1.5-6 | Φ40.9 | 1.5-10 | Φ59 | 1.5-10 | ||
| Φ30 | 1.5-6 | Φ41.3 | 1.5-10 | Φ60 | 1.5-11 | ||
| Φ30.25 | 1.5-6 | Φ41.6 | 1.5-10 | Φ62.5 | 1.5-11 | ||
| Φ30.9 | 1.5-6 | Φ42 | 1.5-10 | Φ74 | 1.5-11 | ||
| Φ31 | 1.5-7 | Φ43 | 1.5-10 | Φ75 | 1.5-11 | ||
| Φ32 | 1.5-7 | Φ44.5 | 1.5-10 | Φ76 | 1.5-11 | ||
| Φ35 | 1.5-7 | Φ45.8 | 1.5-10 | Φ89 | 1.5-15 |
Chemical Composition of seamless steel pipe
| Material | Chemical composition (%) | ||||||
| C | Mn | P | S | Si | Ni | Cu | |
| 20#
AISI 1020 |
0.17~0.23 | 0.35~0.65 | ≤0.035 | ≤0.035 | 0.17~0.37 | ≤0.3 | ≤0.25 |
| 45#
ASTM1045, DIN45 |
0.42~0.5 | 0.5~0.8 | ≤0.04 | ≤0.045 | 0.17~0.37 | ≤0.25 | ≤0.25 |
Mechanical Properties of seamless steel pipe
| Steel material | Tensile Strength Mpa | Yield strength Mpa | Elongation
% |
Hardness | Straightness |
| 20# | ≥510 | ≥245 | ≥25 | ≤156HB | 0.3~1.0 |
| 45# | ≥647 | ≥355 | ≥16 | ≤HRC62 | 0.3~1.0 |
