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Ms.Suwen LimIt is really a pleasure cooperation. You are fast understanding and knowlegeable, also your Check valves worked well. We believe that we will have a great chance to cooperate more. -
Mr. Loredana DoganieriTks for your consisent support for more than 10 years. Your diligence, professional technical support and rich experience in the pipeline projects has biggly help the business between us. Together we will win more and more tenders in the future. Best Regards to you and your team, and finally Come on DEYE Piping team! -
Mr. Yasser NashwanYou are honnesty and very reliable parnter, tks for your support on the technical data sheets and addtional works to fast the delivery time. Your professional answers are always impressed. also Your products are beautiful. We apprecite all the offorts you have done for the years business. -
Mr. Waseem AkramYou are Excellent, especially the quanlity control step by step, We've got all the photos and videos we want. and the documents we received all meet the request. Our boss is very Satisfied and he said he will give you more orders. We like your professional and fast jobs. -
Mr. Gonzalo JaraThe mould you opened for the valve are good, the new types of butterfly valves is popular. It will biggly increase the business between us. Tks for your suggestions on the flange holes. The valves are in good finishing and well packaged when we received them. Thank you, my friend. -
Mr. ilya SabanskyThe end user is safisfied with your A234WPB fittings and A105 Flanges, the have finished the welding at present, all works well.Tks for your professional suggestions and the operation manual. We also won the 2nd Phase job, we have sent to you this morning, Pls confirm all the specifications to proceed.
Stainless Steel 304 316 Seamless Welded Pipes Polished Tubes With Food Grade
| Place of Origin | CHINA |
|---|---|
| Brand Name | DEYE |
| Certification | ISO9001:2015 CE |
| Model Number | DY-SP-S11 |
| Minimum Order Quantity | 5 TONS |
| Price | USD600/ each ton |
| Packaging Details | wooden case, pallet , bundles or as customers' requirement |
| Delivery Time | 30 days for usual order, 7 days for stock sizes |
| Payment Terms | T/T, D/P, L/C |
| Supply Ability | 1000 tons for each month |
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xProduct Details
| Standard | ASME B36.19M, DIN, GOST | Material | SS316/SS316L, SS304/304L, SAF2507, SAF2205, UNS31803, UNS32750, 904L, INCONEL625 |
|---|---|---|---|
| Size | 1/2"(DN15)-24"(DN600 ) For SMLS 12"(DN200)-88"(DN2200) For Welded | Types | Seamless Pipe, Welded Pipe, ERW Pipe, SAW Pipe, FAW Pipe |
| High Light | 316 Seamless Welded Pipes,ss304 Seamless Welded Pipes,Food Grade Polished Tubes |
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Product Description
Stainless Steel 304 316 Welded Pipes Polished Tubes With Food Grade
Welded tubes are a type of structural metal tubing that has a weld seam along its longitudinal axis.
Polish the welded tubes by inner side and outside to make the welded tubes suitable for food grade, sanitary use, portable water, medical etc.
Polishing is believed to be a more aggressive finishing process as compared to buffing. It has the ability to remove more superficial material
from the workpiece surface which in turn allows for a brighter and more polished finish.
Surface finish grade instruction
| GRADE | SURFACE | General Process of Different Polish Grade | |||
| EP |  |
Ra0.1-0.4Grit 300-500) | |||
| Process-Electrolytic polished | |||||
| Finish precision rolled tube and mechanical Polishing all cracks and pit as basenaterial then EP.TINSI-STEEL electrolytic polishing tube inner maximumsurface roughness of Ra 0.1-0.2pm available as a good solution be used inigh requirement of flatness inner. | |||||
| BA/2B | |
Ra0.2-0.6 Grit 250-350) | |||
| Process -cold-worked finish | |||||
| Cold Precision-rolled Finish | |||||
| Bright annealing base on above two cases | |||||
| MP | |
Ra0.2-0.8 Grit 200-350) | |||
| Process- Mechanically | |||||
| MP base on AP:inner Ra0.6-0.8um;Outside Ra0.2-0.6um MP base on BA:inner Ra0.2-0.6um;Outside Ra0.2-0.6um Different requirements use different polishing grades |
|||||
| AP | |
Ra1.0-3.2 , Grit 100) | |||
| Process- Annealed and Pickled | |||||
| ed and pickled conditionindustrial tubes of anne | |||||
Product Information/Product Description/Basis Information/Specification
| Name | STAINLESS STEEL 304 316 POLISHED WELDED TUBES WITH FOOD GRADE |
| Size | DN: Seamless:10-914mm 3/8"-36" |
| Thickness |
Wall Thickness: SCH5S, SCH10S SCH10 SCH20 SCH30 STD SCH40S , SCH40, SCH80S, SCH80, SCH60 XS SCH100 SCH120S SCH120 SCH140 SCH160 XXS 2mm-120mm Accept customization |
| Length |
Single random length/Double random length/Fixed Length 5m-14m,5.8m,6m,10m-12m,12m Accept customization |
| Surface Treatment | Annealed, acid pickling or polished. |
| Material |
Stainless steel: SS304, SS304L, SS304H, SS321, SS316, SS316L, SS310S, 904L, Dual grade SS304/304L, SS316/316L
Stainless steel pipes with material of 1.4301, 1.4307, 1.4541, 1.4401, 1.4404, 1.4571, 1.4878, 1.4432, 1.4462
|
| Standard |
AASME, ASTM, MSS, JIS, DIN, EN * American ASME B36.10M, ASTM, API 5L, API 5CT * Japanese JIS * German DIN * Chinese GB * BS standard |
| End | Plain end/Beveled, protected by plastic caps on both ends, cut square, grooved, threaded and coupling. |
| Applications | Petroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etc |
| Packing | wooden case, pallet , bundles or as customers' requirement |
| Shipment | By 20GP/ 40GP containers, by loose Containers LCL; bulk vessels, top open containers |
Features /Characteristics
- Stainless steel is with low-cost and corrosion-resistant material with a high level of durability.
- It is ideal for both residential and marine applications. Not only is it durable and long-lasting with a perfect surface finish, but it also has excellent strength.
- Stainless Steel Seamless Pipes / Tubes are widely used in commercial and industrial fields, especially fluid transportation. With appropriate processes, they have superior performance in high pressure, high strength, and corrosion resistance.
- Stainless steel seamless pipe can resist both very Low Temperature and high temperatures for cleanliness and maintain the purity of materials which contact stainless steel directly
Technology/ Technical Data Sheets
| Thickness List for seamless stainless-steel pipes | ||||||||
| UNIT:MM | ||||||||
| Norminal Pipe Size DN (in) | Outside Dimeter D | Norminal Wall Thickness | ||||||
| Sch5s | Sch10S | Sch40s | Sch40 | Sch80s | Schl20 | Sch160 | ||
| 1/8 | 10. 3 | —— | 1. 24 | 1. 73 | 1. 73 | 2. 41 | —— | —— |
| 1/4 | 13. 7 | — | 1. 65 | 2. 24 | 2. 24 | 3. 02 | — | — |
| 3/8 | 17. 1 | — | 1. 65 | 2. 31 | 2. 31 | 3. 20 | — | — |
| 1/2 | 21. 3 | 1.65 | 2. 11 | 2. 77 | 2. 77 | 3. 73 | —— | 4. 78 |
| 3/4 | 26. 7 | 1.65 | 2. 11 | 2. 87 | 2. 87 | 3. 91 | —— | 5. 56 |
| 1 | 33.4 | 1. 65 | 2. 77 | 3. 38 | 3. 38 | 4. 55 | — | 6. 35 |
| 1 1/4 | 42. 2 | 1.65 | 2. 77 | 3. 56 | 3. 56 | 4. 85 | — | 6. 35 |
| 1 1/2 | 48. 3 | 1.65 | 2. 77 | 3. 68 | 3. 68 | 5. 08 | —— | 7. 14 |
| 2 | 60. 3 | 1. 65 | 2. 77 | 3. 91 | 3. 91 | 5. 54 | —— | 8. 74 |
| 2 1/2 | 73. 0 | 2. 11 | 3. 05 | 5. 16 | 5. 16 | 7. 01 | — | 9. 53 |
| 3 | 88. 9 | 2. 11 | 3. 05 | 5. 49 | 5. 49 | 7. 62 | — | 11. 13 |
| 3 1/2 | 101. 6 | 2. 11 | 3. 05 | 5. 74 | 5. 74 | 8. 08 | —— | —— |
| 4 | 114. 3 | 2. 11 | 3. 05 | 6. 02 | 6. 02 | 8. 56 | 11. 13 | 13. 49 |
| 5 | 141. 3 | 2. 77 | 3. 40 | 6. 55 | 6. 55 | 9. 53 | 12. 70 | 15. 88 |
| 6 | 168. 3 | 2. 77 | 3. 40 | 7. 11 | 7. 11 | 10. 97 | 14. 27 | 18. 26 |
| 8 | 219. 1 | 2. 77 | 3. 76 | 8. 18 | 8. 18 | 12. 70 | 18. 26 | 23. 01 |
| 10 | 273. 1 | 3. 40 | 4. 19 | 9. 27 | 9.27 | 12. 70 | 21. 44 | 28. 58 |
| 12 | 323.9 | 3. 96 | 4. 57 | 9. 53 | 10. 31 | 12. 70 | 25. 40 | 33. 32 |
| 14 | 355. 6 | 3. 96 | 4. 78 | — | 11. 13 | — | 27. 79 | 35. 71 |
| 16 | 406. 4 | 4. 19 | 4. 78 | —— | 12. 70 | —— | 30. 96 | 40. 49 |
| 18 | 457. 2 | 4. 19 | 4. 78 | —— | 14. 27 | —— | 34. 96 | 45. 24 |
| 20 | 508. 0 | 4. 78 | 5. 54 | — | 15. 09 | — | 38. 10 | 50. 01 |
| 22 | 558. 8 | 4. 78 | 5. 54 | — | — | — | 41. 28 | 53. 98 |
| 24 | 609. 6 | 5. 54 | 6. 35 | —— | 17. 48 | —— | 46. 02 | 59. 54 |
Welded stainless steel with single Longitudinal Welded seam and double Weld seam
Size range from 1/2” to 48” DN15-DN1200.
The reference Standard for the stainless pipes
ASTM A312/A312M, ASME SA312/SA312M for Seamless Austenitic Stainless-Steel Pipes:
ASTM A269, ASME SA269 for Seamless Austenitic Stainless-Steel Tubing for General Service
ASTM A213/A213M, ASME SA213/SA213M for Seamless Austenitic Alloy-Steel Boiler, Super Heater and Heat-Exchanger Tubes
ASTM A789 / A789M. Seamless Duplex Stainless Steel Tubing for General Service.
ASTM A790 / A790M for Seamless Duplex Stainless Steel Pipes
ASTM A511 for Seamless Stainless Steel Mechanical Tubing
EN 10216, DIN 17456, 17458 for Seamless Stainless-Steel Tubes for Pressure Purposes
Material Grades:
Stainless steel is the abbreviation for stainless and acid resistant steel. Steel that is resistant to weak corrosive media such as air, steam, water, or has rust resistance is called stainless steel; And the steel grade that is resistant to chemical corrosion media (such as acid, alkali, salt, etc.) corrosion is called acid resistant steel.
The most common used material is SS304/304L, SS316/316L, DUPLEX SAF2507, SAF2205, Detail’s specification of the material as below.
| 304/304L (UNS S30400/S30403) | |||||||
| Chemical Composition% | |||||||
| C | Cr | Mn | Ni | P | S | Si | |
| ≤ | -- | ≤ | -- | ≤ | ≤ | ≤ | |
| 0.035 | 18.0-20.0 | 2.00 | 8.0-13.0 | 0.045 | 0.03 | 1.00 | |
Tensile Strength: ≥ 485 Mpa (70KSI)
Yield Strength: ≥170Mpa (25KSPI)
Elongation ≥ 40%
|
316/316L (UNS S31600/S31603) |
|||||||
| Chemical Composition% | |||||||
| C | Cr | Mn | Mo | Ni | P | S | Si |
| ≤ | -- | ≤ | -- | ≤ | ≤ | ≤ | |
| 0.035 | 16.0-18.0 | 2.00 | 2.0-3.0 | 10.0-14.0 | 0.045 | 0.03 | 1.00 |
Tensile Strength: ≥ 485 Mpa (70KSI)
Yield Strength: ≥170Mpa (25KSPI)
Elongation ≥ 40%
SAF2205 (UNS31803)
Chemical Composition%
| C≤ | Si ≤ | Mn≤ | P ≤ | S ≤ | Cr | Ni | Mo | Cu | N |
| 0.03 | 1.0 | 2.0 | 0.03 | 0.02 | 22-23 | 4.5-6.5 | 3.0-3.50 | / | 0.14-0.2 |
Mechanical Performance
| Test Items | Test Temp. | Performance | Standard Data |
| Tensile Strength | Room Temp. | Yield Strength s≥ | 450 Mpa |
| Tensile Strength h ≥ | 620 Mpa | ||
| Elongation % > | 25 | ||
| Reduction of Area=> | / | ||
| Impact Value KV(J) | Room Temp. | Lateral | / |
| Brinell hardness | Room Temp. | ≤ | 290 |
| Rockwell hardness | Room Temp. | ≥ | / |
SAF2507(UNS32750)
Chemical Composition%
| c ≤ | Si≤ | Mn≤ | P≤ | S≤ | Cr | Ni | Mo | Cu≤ | N |
| 0.03 | 0.8 | 1.2 | 0.03 | 0.015 | 24-26 | 6.0-8.0 | 3.0-5.0 | 0.5 | 0.24-0.32 |
Mechanical Performance
| Test Items | Test Temp. | Performance | Standard Data | |
| Tensile | Room Temp. | Yield Strength | Ø≤55 Rm≥ | 550 Mpa |
| Ø >55 Rm≥ | 515 Mpa | |||
| Tensile Strength | Ø≤55 R0.002 ≥ | 800 Mpa | ||
| Ø >55 R0.002≥ | 760 Mpa | |||
| Elongation A%(4D) > | Ø≤55 ≥ | 15 | ||
| Ø >55 ≥ | 15 | |||
| Brinell hardness HB | Room Temp. | Ø≤5 ≤ | 310 | |
| Ø >55 ≤ | 310 | |||
Production Process
Application/Usage
Stainless steel pipe and tubing are used in chemical plants, aviation fields, marine equipment, cryogenic transportation, medical and architectural industries.
- Chemical plants
- Aviation fields
- Marine equipment
- Cryogenic transportation
- Medical & architectural industries
FAQ/ Customer Question and Answers
Q: What is difference between tubes and pipes?
A: Tubes and pipes are difficult to identify occasionally and some people use the name of tube and pipe interchangeably. However, there are significant differences between tubes and pipes. Tubes are measured in outer diameter and wall thickness. The tube is produced with close tolerance range and requires precise outer diameter and wall thickness to identify its working pressure.
Q: What is Difference Between Stainless Steel Pipes Seamless and Welded?
A: 1) Strength: The main difference between seamless and welded pipes is in their strength. Seamless pipes are stronger because they do not have any welded seams. Welded pipes are weaker because the welds can act as weak points that could break under high pressure.
2)Cost: Seamless stainless-steel pipes are more expensive than welded ones because they require more time and effort. Welded pipes are less expensive because they can be made quickly and with less precision.
3) Applications: Seamless stainless-steel pipes are typically used in high-pressure applications, such as hydraulic systems, while welded pipes are used in low-pressure applications, such as water piping.
Our Service
1. Technical support
2. Raw Material Quality control.
3. Inspection during the production time.
4. Final Test includes Surface, Dimension, PT Test, RT test, ultrasonic Test
5. Test Report each shipment
4. Flexible Delivery terms. EXW FOB CIF CFR DDP DDU
5. Flexible payment Ways: LC. TT. DP
6. Customized Package includes Logo. Cases Dimension.
7. 18 months quality Guarantee time.
9. Free replacement by air if any error founded
10. 24 hours to Feedback your questions
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