TORICH INTERNATIONAL LIMITED
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Seamless Precision Tube EN10305-4 Cold Drawn Hydraulic Pneumatic Power Pipe
EN10305-4 are used for seamless cold drawn precision steel tube for htdraulic and pneumatic power systems.
1.Brief introduction of seamless precision tube:
Manufacturing: The tubes shall be manufactured from hot finished seamless hollows bu cold drawing. The seamless precision tubes shall be delieved in the delivery condition +N whcih means that after the final drawing operation the tubes are normalized in a controlled atmosphere.
Appearance: The tubes shall have smooth outer ans inner surfaces with a roughness Ra≤4um.
Length: standard length of 6m (+50mm -0mm)
exact length of 6m (+10mm -0mm)
Straightness: OD＞15mm, in length greater than 1000mm, straightness of any tube length L shall not exceed 0.0015L. Over any one meter length, straightness shall not exceed 3mm.
2.Chemical composition:
| Steel name | C max % | Si max % | Mn max % | P max % | S max % | Al min% |
| E215 | 0.1 | 0.05 | 0.7 | 0.025 | 0.015 | 0.025 |
| E235 | 0.17 | 0.35 | 1.2 | 0.025 | 0.015 | 0.015 |
| E355 | 0.22 | 0.55 | 1.6 | 0.025 | 0.015 | 0.020 |
3.Mechanical Properties:
| Steel name | Tensile strength Rm MPa | Yield strength ReH min Mpa | Elongnation min % |
| E215 | 290-430 | 215 | 30 |
| E235 | 340-480 | 235 | 25 |
| E355 | 490-630 | 355 | 22 |
4.Seamless precision steel tube product display:
Q: Are you trading company or manufacturer ?
A: A professional steel pipes materials inventor, manufacturer and solution provider
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples of carbon seamless steel tube ? 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: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
Q:Do you have agent or distributor in our country?
A:We are recruiting area agent and distributor all over the world, welcome to send us your mail or call us for detail discussion.
Q:How is your production capability?
A:1.2000 tons monthly production capacity, 5000 tons monthly trading capability
2.Prompt and Timely shipment
Q:How to get the sample?
A:1.You are requested to pay for sample charges and courier charges from China to your country; and the free sample is according the product like size, steel grade and quantity, please consult our sales for details
2.Sample charges will be refunded when order is placed.
QUALITY CONTROL:
1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking