TORICH INTERNATIONAL LIMITED
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Hydraulic Precision Steel Tube 0.5 - 10mm Thickness 10# - 45# Grade
Chemical Composition
| Steel grade | C max. | Si max. | Mn max. | P max. | S max. | Altot min. | |
| Name | Number | ||||||
| E215 | 1.0212 | 0.10 | 0.05 | 0.7 | 0.025 | 0.015 | 0.025 |
| E235 | 1.0308 | 0.17 | 0.35 | 1.2 | 0.025 | 0.015 | -- |
| E355 | 1.0580 | 0.22 | 0.55 | 1.6 | 0.025 | 0.015 | -- |
Tolerance
| Outer Diameter | Allowable tolerance | special tolerance | ||
| GB/T3639 | DIN2391 | OD | WT | |
| 4mm-20mm | ±0.10mm | ±0.08mm | ±0.05mm | ±0.05mm |
| 20mm-30mm | ±0.10mm | ±0.08mm | ±0.08mm | ±0.08mm |
| 31mm-40mm | ±0.15mm | ±0.15mm | ±0.10mm | ±0.08mm |
| 41mm-60mm | ±0.20mm | ±0.20mm | ±0.15mm | ±0.15mm |
| 61mm-80mm | ±0.30mm | ±0.30mm | ±0.20mm | ±0.20mm |
| 81mm-120mm | ±0.45mm | ±0.45mm | ±0.30mm | ±0.30mm |
Mechanical Properties
| Steel grade | Yield strengtha | Tensile strength | Elongation | |
| Name | Number | ReH | Rm | A |
| min. | min. | min. | ||
| MPa | MPa | % | ||
| E215 | 1.0212 | 215 | 290 to 430 | 30 |
| E235 | 1.0308 | 235 | 340 to 480 | 25 |
| E355 | 1.0580 | 355 | 490 to 630 | 22 |
Delivery Condition
| Designation | Symbol | Description |
| Cold finished (hard) | BK(+C) | Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high resistance to deformation |
| Cold finished (Soft) | BKW (+LC) | 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-relieved | BKS(+SR) | Heat treatment is applied 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(+A) | The last Cold forming process is followed by annealing in a controlled atmosphere. |
| Normalized | NBK(+N) | The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere. |
Quality assurance
1.Strictly according to DIN2391/EN10305
2.Sample: Sample is free for test.
3.Test:salt spray test/tensile test / Eddy current / chemical composition test according to customers' request
4.Certificate:IATF16949,ISO9001,SGS etc
Our services
1. MOQ: if the size is Metric, it's no MOQ, if the size is Inch, the MOQ is 1 ton per size
2. OEM: we can produce the tubes as client's demand
3. Good Quality: we strictly control every production process to ensure the high quality
4. After-sales service: we not only guarantee the precision tubes'
quality but also provide technical support
5. Fast delivery: if we have precision tubes in stock, will deliver the tubes after 5-15 days.
If we don't have the raw material, will deliver the tubes after 45-60 days according to the quantity.
FAQ
Q: Are you trading company or manufacturer ?
A: We are professional steel tube manufacture since 2003
Q:What certificates do you have ?
A:IATF16949,ISO9001,SGS
Q: How long is your delivery time?
A: According to quantity .Generally 50days after receive deposit ,
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
A: 30% T/T in advance ,balance before shipment .
Precision Compressive Strength Steel Pipe Tube