SAE 4140 Precision seamless chrome thick wall steel pipe for barrel gun

ASTM 4140
| Chemical Composition(%) |
Mechanical Property |
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| C | Si | Mn | S | P | Cr | Ni | Cu | Mo |
Yield Strength ( σs ) |
Tensile Strength ( σb ) |
Hardness |
| 0.38~0.43 | 0.15~0.35 | 0.75~1.00 | ≤0.045 | ≤0.030 | 0.80 ~ 1.10 | ≤0.030 | ≤0.030 | 0.15 ~ 0.25 |
≥930(95)(MPa)
|
≥1080(110)
(MPa)
|
≤217HB |
|
End Shape |
Beveled end, plain end, vanished, or adding plastic caps to protect the two ends as per custom er's requirements |
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|
Surface Treatment |
Oiled, Galvanized, Phosphate etc |
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| Technique |
Cold drawn |
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|
Package |
1. Bundle Packing. |
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2. Plain end or vanished as per customer's request. |
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3. Wrapped in waterproof paper. |
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4. Sackcloth with several steel strips. |
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5. Pack in heavy tri-wall boxes. |
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16mm x Ø8mm 13mm x Ø4.4mm 16mm x Ø4.3mm


| 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.
http://chengqisteelpipe.en.alibaba.com/company_profile.html
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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 wou ld get much higher than big ones. So there is a small Qty Process Charge to ensure the profit o f 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 t his, 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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Contact : zoe qian, 0086 0519 83856060
Good deal: buying from seller
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