ASTM A312 SS304L SS316L Stainless Steel Smls Seamless Pipes With
ANSI B36.10
stainless steel pipe conforms to the ASTM A312 standard includes
seamless stainless-steel pipes and welded stainless steel ipe. The
specification meets strict certifications required on project
piping systems with superior strength and corrosion resistance for
use in various applications. Pipe cutting, bending, polishing,
threading and grooving services finish and customize to
specifications.
. The material is available in SS304, SS316, SS304L, SS316L and
also dual grade SS304/304L, 316/316L, DUPLEX SS2205 2507 with
length 6m, 12m or single random length, double random length , also
the length can be as per customer’s request.
Product Information/Product Description/Basis
Information/Specification
| Name | ASTM A312 SS304L SS316L STAINLESS STEEL SMLS SEAMLESS PIPES |
| 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
Duplex: 2205, 2507, F55, UNS31083, UNS32750, UNS32760
Stainless steel pipes with material of 1.4301, 1.4307, 1.4541,
1.4401, 1.4404, 1.4571, 1.4878, 1.4432, 1.4462
Nickle Alloy: Hastelloy C276, Inconel 601, Inconel 625, Inconel 718
|
| 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
ProjectMaterial Grades available
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
