| Customization: | Available |
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| Type: | Seamless |
| Technique: | Cold Rolled |
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AISI Cold Rolled TP304 Stainless Round Steel Tube Factory 304L 321 316 Seamless/Welded 316L Solid Solution Pickle Polished Surface TP304H Pipe for Heat Exchanger
Stainless steel pipe is a hollow, elongated circular steel material widely used in industrial transportation pipelines and mechanical structural components such as petroleum, chemical, medical, food, light industry, and mechanical instruments. In addition, when the bending and torsional strength are the same, the weight is relatively light, so it is also widely used in the manufacturing of mechanical parts and engineering structures. It is also commonly used as furniture and kitchenware. The American standard for stainless steel pipes mainly involves relevant specifications developed by the American Society for Testing and Materials (ASTM) and the American Society of Mechanical Engineers (ASME). The following are the main American standards and their characteristics:
1. ASTM A312
Scope of application: Suitable for seamless and welded austenitic stainless steel pipes, such as TP304 and 304L.
Chemical composition: specifies the content range of elements such as carbon, silicon, manganese, phosphorus, sulfur, nickel, chromium, etc. For example, the chromium content of TP304 is 18% -20%, and the nickel content is 8% -11%.
Mechanical properties: including tensile strength (≥ 520Mpa), yield strength (≥ 210Mpa), and elongation (≥ 35% in heat-treated state, ≥ 25% in non heat-treated state).
2. ASTM A276
Scope of application: Suitable for stainless steel bars and profiles, such as 420 stainless steel pipes.
Chemical composition: specifies the content of chromium (12% -14%) and carbon (≥ 0.15%), as well as the UNS standard number (such as S42000).
Characteristics: 420 stainless steel has a high carbon content and high hardness after quenching, but its corrosion resistance is limited. It is mainly used for cutting tools, nozzles, etc.
3. ASME SA312 and ASME SA213
Scope of application: Similar to ASTM A312 and A213, but with added requirements of ASME Boiler and Pressure Vessel Code, suitable for high temperature and high pressure environments.
Characteristic: Ensure the safety and reliability of materials under extreme conditions.
4. ASTM A276-2017
Scope of application: Specifically for 304L stainless steel pipes, the material grade, chemical composition, and mechanical properties are specified.
Features: As a low-carbon version, 304L has better welding performance and resistance to intergranular corrosion.
5. Other relevant standards
ASTM A269: Suitable for seamless and welded austenitic stainless steel pipes, commonly used in the food and pharmaceutical industries.
ASTM A789: Suitable for seamless and welded ferritic/austenitic stainless steel pipes for general use.
Summary: The American standard for stainless steel pipes covers multiple aspects such as chemical composition, mechanical properties, production processes, and application scenarios, ensuring the applicability and reliability of materials in different environments.
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Material
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200 300 400 Series stainless steel
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Grade
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201 202 301 303 304 304L 309 309S 310 310S 316 316L 316Ti 317L 321 2205 2507 409 409l 410 410S 420 420J1 420J2 430 441 444 904L
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Standard
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AiSi ASTM JIS DIN EN BS
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Tech
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cold rolled / hot rolled
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Type
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Welded / Seamless
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Production technique
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*ss seamless pipe: round steel preparation--heating--hot-rolled--cut head--Pickling--grinding--lubricating--cold rolled--greased-solution--heat treatment--straightening--cut pipe--Pickling--Product testing. *ss welded pipe: raw material(belt or plate)--slitting--welding pipe--repairing--polishing- inspection(printing)--packaging--shipping(warehousing) (decorative welded pipe). |
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Section Shape
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round, square, rectangle
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Thickness
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0.3MM-3MM
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OD(Outer Diameter)
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6mm - 2500mm
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Normal size
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18mm - 60mm
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Length
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5.8m, 6m, 12m or as per customer's request
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Tolerance
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Outer diameter: ±0.1mm / Thickness: ±0.02mm / Length: ±1cm
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Processing Service
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Bending, Welding, Decoiling, Punching, Cutting, Moulding
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Surface Treatment
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pickled, brightened, annealed, polished(#180, 240, 320, 400, 500, 600, 700, 800 grid), colored
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Payment
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T/T terms, 30% pre-payment, 70% balance see B/L copy
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Delivery Time
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5-15 days for ordinary orders (standard orders <=50 ton); specified orders needs final confirmation as per customer's request
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| No | Grade (EN) | Grade (ASTM/UNS) | C | N | Cr | Ni | Mo | Others |
| 1 | 1.4301 | 304 | 0.04 | - | 18.1 | 8.3 | - | - |
| 2 | 1.4307 | 304L | 0.02 | - | 18.2 | 10.1 | - | - |
| 3 | 1.4311 | 304LN | 0.02 | 0.14 | 18.5 | 8.6 | - | - |
| 4 | 1.4541 | 321 | 0.04 | - | 17.3 | 9.1 | - | Ti 0.24 |
| 5 | 1.4550 | 347 | 0.05 | - | 17.5 | 9.5 | - | Nb 0.012 |
| 6 | 1.4567 | S30430 | 0.01 | - | 17.7 | 9.7 | - | Cu 3 |
| 7 | 1.4401 | 316 | 0.04 | - | 17.2 | 10.2 | 2.1 | - |
| 8 | 1.4404 | 316L/S31603 | 0.02 | - | 17.2 | 10.2 | 2.1 | - |
| 9 | 1.4436 | 316/316LN | 0.04 | - | 17 | 10.2 | 2.6 | - |
| 10 | 1.4429 | S31653 | 0.02 | 0.14 | 17.3 | 12.5 | 2.6 | - |
| 11 | 1.4432 | 316TI/S31635 | 0.04 | - | 17 | 10.6 | 2.1 | Ti 0.30 |
| 12 | 1.4438 | 317L/S31703 | 0.02 | - | 18.2 | 13.5 | 3.1 | - |
| 13 | 1.4439 | 317LMN | 0.02 | 0.14 | 17.8 | 12.6 | 4.1 | - |
| 14 | 1.4435 | 316LMOD /724L | 0.02 | 0.06 | 17.3 | 13.2 | 2.6 | - |
| 15 | 1.4539 | 904L/N08904 | 0.01 | - | 20 | 25 | 4.3 | Cu 1.5 |
| 16 | 1.4547 | S31254/254SMO | 0.01 | 0.02 | 20 | 18 | 6.1 | Cu 0.8-1.0 |
| 17 | 1.4529 | N08926 Alloy25-6mo | 0.02 | 0.15 | 20 | 25 | 6.5 | Cu 1.0 |
| 18 | 1.4565 | S34565 | 0.02 | 0.45 | 24 | 17 | 4.5 | Mn3.5-6.5 Nb 0.05 |
| 19 | 1.4652 | S32654/654SMO | 0.01 | 0.45 | 23 | 21 | 7 | Mn3.5-6.5 Nb 0.3-0.6 |
| 20 | 1.4162 | S32101/LDX2101 | 0.03 | 0.22 | 21.5 | 1.5 | 0.3 | Mn4-6 Cu0.1-0.8 |
| 21 | 1.4362 | S32304/SAF2304 | 0.02 | 0.1 | 23 | 4.8 | 0.3 | - |
| 22 | 1.4462 | 2205/ S32205 /S31803 | 0.02 | 0.16 | 22.5 | 5.7 | 3 | - |
| 23 | 1.4410 | S32750/SAF2507 | 0.02 | 0.27 | 25 | 7 | 4 | - |
| 24 | 1.4501 | S32760 | 0.02 | 0.27 | 25.4 | 6.9 | 3.5 | W 0.5-1.0 Cu0.5-1.0 |
| 25 | 1.4948 | 304H | 0.05 | - | 18.1 | 8.3 | - | - |
| 26 | 1.4878 | 321H/S32169/S32109 | 0.05 | - | 17.3 | 9 | - | Ti 0.2-0.7 |
| 27 | 1.4818 | S30415 | 0.15 | 0.05 | 18.5 | 9.5 | - | Si 1-2 Ce 0.03-0.08 |
| 28 | 1.4833 | 309S S30908 | 0.06 | - | 22.8 | 12.6 | - | - |
| 29 | 1.4835 | 30815/253MA | 0.09 | 0.17 | 21 | 11 | - | Si1.4-2.0 Ce 0.03-0.08 |
| 30 | 1.4845 | 310S/S31008 | 0.05 | - | 25 | 20 | - | - |
| 31 | 1.4542 | 630 | 0.07 | - | 16 | 4.8 | - | Cu3.0-5.0 Nb0.15-0.45 |
Q: ARE YOU FACTORY OR TRADER?
A: Our company is a manufacturer of magnetic stainless steel coil since 2009. We've gained our Export Right and become an integrated company of industry and trade in order to satisfy buyer's multi-request on different material and products.
Q: WHICH MATERIAL/PRODUCTS YOU CAN PROVIDE?
A: Stainless Steel Coils / Strips, Stainless Steel Sheets / Plates, Stainless Steel Circles / Discs, Decorative Stainless Steel Sheets.
Q: HOW TO GET A SAMPLE?
A: FREE samples are available for your checking and testing. And to get free samples, you need to send us you detailed receiving address (including post code) and your DHL/FedEx/UPS account for collecting samples, courier cost will be paid in your side.
Q: HOW TO VISIT YOUR FACTORY?
A: Most of the main cities have flights to Wuxi; you can take flight to Wuxi Shuofang International Airport.
If you come from Shanghai, it will take 2 hours by flight (every day 5 flights).
If you come from Hongkong, it will take 1 hour by flight (every day 1 flight around noon time).
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