Seamless Precision Steel Tube for Motorcycle and Automotive Shock Absorber
Seamless Precision Steel Tube for Motorcycle and Automotive Shock Absorber
Chemical Composition and Mechanical Performance:
| Table 1- Chemical composition | ||||||
| Steel Grade | C% | Si% | Mn% | P% | S% | AL% |
| E215 | ≤0.10 | ≤0.05 | ≤0.7 | ≤0.025 | ≤0.025 | ≥0.025 |
| E235 | ≤0.17 | ≤0.35 | 0.4-1.2 | ≤0.025 | ≤0.025 | |
| E255 | ≤0.21 | ≤0.35 | 0.4-1.1 | ≤0.025 | ≤0.025 | |
| E355 | ≤0.22 | ≤0.55 | ≤1.6 | ≤0.025 | ≤0.025 | |
| Table 2 - Mechanical properties at room temperature | |||||||||
| Delivery Condition | BK | BKW | GBK | NBK (N) | |||||
| Steel Grade | Rm | A % | Rm | A % | Rm | A % | Rm | ReH | A % |
| Mpa (Min) | (Min) | Mpa(Min) | (Min) | Mpa(Min) | (Min) | Mpa(Min) | Mpa(Min) | (Min) | |
| E215 | 430 | 8 | 380 | 12 | 280 | 30 | 290~430 | 215 | 30 |
| E235 | 480 | 6 | 420 | 10 | 315 | 25 | 340~480 | 235 | 25 |
| E255 | 580 | 5 | 520 | 8 | 390 | 21 | 440~570 | 255 | 21 |
| E355 | 640 | 4 | 580 | 7 | 450 | 22 | 490~630 | 355 | 22 |
Other Specification:
| End Shape | Beveled end, plain end, vanished, or adding plastic caps to protect the two ends as per customer's requirements | |
| Surface Treatment | Oiled, Galvanized, Phosphate etc | |
| Technique | Cold drawn & cold rolled | |
| Application | 1. Automotive and mechanical pipes | |
| 2. Petroleum cracking pipes | ||
| 3. High Pressure Boiler Pipe | ||
| 4. Low and middle pressure fluid transportation pipeline | ||
| 5. Chemical fertilizer equipment pipes | ||
| 6. Heat exchanger pipes | ||
| Delivery Conditions | 1. BK (+C) | No heat treatment after last cold forming process. |
| 2. BKW (+LC) | After last heat treatment there is a light finishing pass (cold drawing) | |
| 3. BKS (+SR) | After the final cold forming process the tubes are stress relieve annealed. | |
| 4. GBK (+A) | After the final cold forming process the tubes are annealed in a controlled atmosphere. | |
| 5. NBK (+N) | After the final cold forming process the tubes are annealed above the upper transformation point in a controlled atmosphere. | |
| Package | 1. Bundle Packing. | |
| 2. Plain end or vanished as per customer's request. | ||
| 3. Wrapped in waterproof paper. | ||
| 4. Sackcloth with several steel strips. | ||
| 5. Pack in heavy tri-wall boxes. | ||
FAQ
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 ? 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.
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