| Type: | Welded |
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| Technique: | Cold Drawn |
| Material: | Carbon Steel |
| Surface Treatment: | Black |
| Usage: | Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose |
| Section Shape: | Square |
| Samples: |
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| Customization: |
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Audited Supplier
1.Product Description: square and rectangular steel pipe
| electric-resistance-welded | |||||||||
| item | Chemical composition max % | Item | mechanical property | ||||||
| steel | C % | Mn % | S % | P % | Si % | steel | yield point Mpa | tensile strength Mpa | elongation % |
| Grade A | 0.25 | 0.95 | 0.045 | 0.05 | -- | Grade A | 205 (min) | 330 (min) | 26-30 |
| Grade B | 0.3 | 1.2 | 0.045 | 0.05 | -- | Grade B | 240 (min) | 415 (min) | 21-26 |
| Quality Standard: ASTM A53 ASTM A500 Standard Specification for Pipe, Black,and Hot-Dipped, Zinc-Coated, Welded and Seamless | |||||||||
| chemical requirement | mechanical property | shaped structural tubing | |||||||||||
| Element | Composition. % | Grade A | Grade B | Grade C | Grade D | ||||||||
| Grade A, B and D | Grade C | tensile strength,min, | psi | 45000 | 58000 | 62000 | 58000 | ||||||
| Heat Analysis |
Product Analysis |
Heat Analysis |
Product Analysis |
Mpa | 310 | 400 | 427 | 400 | |||||
| yield strength, min, | psi | 33000 | 42000 | 46000 | 36000 | ||||||||
| C, max | 0.26 | 0.30 | 0.23 | 0.27 | Mpa | 228 | 290 | 317 | 250 | ||||
| Mn, max | … | … | 1.35 | 1.40 | elongation in 2in. (50.8mm),min % | 25 | 23 | 21 | 23 | ||||
| P, max | 0.035 | 0.045 | 0.035 | 0.045 | quality standard: ASTM A500 standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes |
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| S, max | 0.035 | 0.045 | 0.035 | 0.045 | |||||||||
| Copper,(when specified) min | 0.20 | 0.18 | 0.20 | 0.18 | |||||||||
Other Specification:
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End Shape |
Beveled end, plain end, vanished, or adding plastic caps to protect the two ends as per customer's requirements |
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Surface Treatment |
Oiled, Galvanized, painted black |
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Technique |
Hot rolled, Cold Rolled |
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Application |
1. structural applications, industrial and residential construction |
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2. fence post / fencing / bollards / bed frame |
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3. natural gas |
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4. in fire sprinkler systems / water supply |
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5. athletic equipment / light pole / lamppost |
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6. Agriculture / greenhouse |
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Package |
1. Bundle Packing. |
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2. Wrapped in waterproof paper. |
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3. Sackcloth with several steel strips. |
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| 1 | |
| Are you a trading company or manufacturer? | |
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Yea, we are manufacturer. We have our own manufacturer-Tianjin YOUFA steel pipe group. |
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Tianjin YOUFA international Trade Co.,Ltd. is our own export trade platform. |
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| URL: sianosteel.en.made-in-china.com | |
| 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. | |
| 3 | |
| How can I get a sample to check your quality? | |
| After price confirmation, you can require for samples to check our quality. | |
| we will provide you the sample for free, however we could only make sure the same material, the | |
| dimension will be much similar as your request but not same. And customer should afford the | |
| charge of shipment. | |
| 4 | |
| How long can I expect to get the sample? | |
| The samples will be sent to you via express and arrive in 3-5 days. | |
| You can use your own consignee account or prepay us if you do not have an account. | |
| 5 | |
| What about the lead time for mass production? | |
| Honestly, it depends on the order quantity and the season you place the order. | |
| 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 | |
| 7 | |
| Could the pipe be customized for us? | |
| Yes. We are the professional manufacturer which has rich experience in Steel Pipe manufacturing. | |
| We could print the logo and label under your requirements if you need OEM products. | |
| 8 | |
| What is your terms of delivery? | |
| We accept EXW, FOB, CIF, CFR etc. You can choose the one which is the most convenient or cost | |
| effective for you. | |
| 9 | |
| Shipping | |
| Asia Countries: 10-30 days, | |
| Middle East: Around 30-40 days | |
| Africa: Around 30-50 days | |
| South America : 30-60 days | |
| Please advise your port in you inquiry for quoting, will quote for you specifically |
Suppliers with verified business licenses
Audited Supplier 
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