0086-519-83856060
No. 78, Suntang, Qinxin Village, Yaoguan Town, Wujin District, Changzhou, Jiangsu, China (Mainland)
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4130 Chromoly Steel Pipe
Chemical Composition(%) | Mechanical Property | |||||||||
| C | Si | Mn | S | P | Cr | Ni | Cu | Mo | Yield Strength ( σs ) | Tensile Strength ( σb ) |
| 0.26~0.34 | 0.20~0.40 | 0.40~0.70 | ≤0.035 | ≤0.035 | 0.8~1.10 | ≤0.030 | ≤0.030 | 0.15~0.25 | ≥ ≥785(80) (MPa) | ≥ ≥930(95) (MPa) |
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 | |||||||||
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. | ||||||||||
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1.Auto and Motorcycle Parts(Fuel Injection Parts, Diesel Engine Parts, Shock Absorber,Gas Spring)
2.Exhaust Pipe for Generator
3.High Heels Steel Pipes
4.Bicycle frame(Stnadard or Customize)
5.Hydraulic Pipe(Hydrocylinder Pipe)
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1.Anti-rust oil coating(free)
2.Capping(charge)
3.Used steel stip to fix(free)
4.Packed with waterproof papper(free)
5.Packed with firm sack cloth(free)
6.Wooden case package(charge)
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| 1 |
Are you a trading company or manufacturer?
Yes, Changzhou Chengqi Steel Tube Factory Was established in 2006, It is an enterprise incorporating industry
and trade. We have our own foreign trade platform - Changzhou Drake International Trade Co.,Ltd.
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| 2 |
How can I get the price? We usually quote within 24 hours after we get your inquiry by telling us the material, out diameter, wall thickness length, quantity and application of the steel pipe which you need. If you are very urgent to get the price, please inform us in email so that we will regard your inquiry priority.
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| 3 |
How can I get a sample to check your quality? dimension will be much similar as your request but not same. And customer should afford the charge of shipment.
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| 4 |
How long can I expect to get the sample? You can use your own consignee account or prepay us if you do not have an account.
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| 5 |
What about the lead time for mass production? Honestly, it depends on the order quantity and the season you place the order.
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| 6 |
What is the Small Qty Process Charge. It is the payment for customer whose order qty is less then Min Order Qty. Because small qty of products should be processed same in the production flow as big qty and the average cost would get much higher than big ones. So there is a small Qty Process Charge to ensure the profit of our factory and usually the amount of it is about $250.00
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| 7 |
Could the pipe be customized for us? Pipe manufacturing.
We could print the logo and label under your requirements if you need OEM products. Beside this, we still do some refined processes like CNC cutting, chamfering, galvanization and tapping, if you have detailed spec or drawing.Our production lead time is within 30-45 days.
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| 8 |
What is your terms of delivery? effective for you.
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| 9 |
Shipping
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Don't hesitate to contact us if you have any questions. Thank you!
