ASTM A269 TP304 stainless steel seamless heat exchanger tube
ASTM A269 TP304 stainless steel seamless heat exchanger tube
304 stainless steel seamless heat exchanger tube is an austenitic stainless steel composed of 18% chromium and 8% nickel. It offers excellent corrosion and oxidation resistance, high tensile strength, and good thermal conductivity at elevated temperatures. Extruded from hot billets without welds, seamless tubes offer superior strength and pressure-bearing capacity compared to welded tubes, making them an ideal choice for demanding heat exchanger applications.
Is 304 stainless steel resistant to high temperatures?
304 stainless steel has good high-temperature resistance and offers good oxidation resistance in intermittent service up to 870°C (1598°F) and continuous service up to 925°C (1697°F). However, continuous use at temperatures between 425-860°C (797-1580°F) is not recommended due to reduced corrosion resistance and potential carbide precipitation. For higher temperatures, or to avoid issues within this range, 304L stainless steel (corrosion resistance) or 304H stainless steel (higher strength) are better choices.
Manufacturing Range for ASTM A269 TP304 Stainless Steel Tubes
| Category | Details |
|---|---|
| Product | ASTM A269 TP304 Stainless Steel Tubes |
| Specification | ASTM A269 |
| Type | Seamless & Welded |
| Size Range | Seamless: 1/8" to 24" (10.3 mm to 610 mm) Welded: 1/8" to 36" (10.3 mm to 914 mm) OD Range: 1/8" OD to 6" OD |
| Thickness | Schedules: 10S, 20, 40S, 40, 60, 80S, 80, 100, 120, 140, 160, XXH Wall Thickness: 1 mm to 60 mm |
| Length | 6 Meters, Custom Lengths |
| Other Grades | TP304, TP304L, TP304LN, TP316, TP316L, TP316LN, TP317, TP321, TP347, TP348, S31254 |
| Test Certificates | Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2 |
| Referenced Standards | - A262: Detecting Susceptibility to Intergranular Attack - A370: Mechanical Testing - A480/A480M: General Requirements for Flat-Rolled Stainless Steel - A632: Seamless and Welded Austenitic Stainless Steel Tubing - A1016/A1016M: General Requirements for Steel Tubes - E527: Unified Numbering System (UNS) |
Chemical Composition of ASTM A269 TP304 Stainless Steel Tubes (Weight %)
| Grade | UNS Designation | C (Max) | Mn (Max) | P (Max) | S (Max) | Si (Max) | Cr | Ni | Mo | N |
|---|---|---|---|---|---|---|---|---|---|---|
| TP304 | S30400 | 0.08 | 2.0 | 0.045 | 0.03 | 1.0 | 18.0–20.0 | 8.0–11.0 | ... | ... |
| TP304L | S30403 | 0.035 | 2.0 | 0.045 | 0.03 | 1.0 | 18.0–20.0 | 8.0–13.0 | ... | ... |
| TP304LN | S30453 | 0.035 | 2.0 | 0.045 | 0.03 | 1.0 | 18.0–20.0 | 8.0–11.0 | ... | 0.10–0.16 |
| TP316 | S31600 | 0.08 | 2.0 | 0.045 | 0.03 | 1.0 | 16.0–18.0 | 10.0–14.0 | 2.00–3.00 | ... |
| TP316L | S31603 | 0.035 | 2.0 | 0.045 | 0.03 | 1.0 | 16.0–18.0 | 10.0–15.0 | 2.00–3.00 | ... |
| TP316LN | S31653 | 0.035 | 2.0 | 0.045 | 0.03 | 1.0 | 16.0–18.0 | 10.0–13.0 | ... | 0.10–0.16 |
| TP317 | S31700 | 0.08 | 2.0 | 0.045 | 0.03 | 1.0 | 18.0–20.0 | 11.0–15.0 | 3.0–4.0 | ... |
| TP321 | S32100 | 0.08 | 2.0 | 0.045 | 0.03 | 1.0 | 17.0–19.0 | 9.0–12.0 | ... | ... |
| TP347 | S34700 | 0.08 | 2.0 | 0.045 | 0.03 | 1.0 | 17.0–19.0 | 9.0–13.0 | ... | ... |
ASTM A269 TP 304 Mechanical properties of seamless or welded stainless steel pipe
| Grade | UNS Designation | Tensile Strength (Min) | Yield Strength (Min) |
|---|---|---|---|
| TP304 | S30400 | 75 ksi [515 MPa] | 30 ksi [205 MPa] |
| TP304L | S30403 | 70 ksi [485 MPa] | 25 ksi [170 MPa] |
| TP316 | S31600 | 75 ksi [515 MPa] | 30 ksi [205 MPa] |
| TP316L | S31603 | 70 ksi [485 MPa] | 25 ksi [170 MPa] |
| TP317 | S31700 | 75 ksi [515 MPa] | 30 ksi [205 MPa] |
| TP321 | S32100 | 75 ksi [515 MPa] | 30 ksi [205 MPa] |
| TP347 | S34700 | 75 ksi [515 MPa] | 30 ksi [205 MPa] |
| TP347H | S34709 | 75 ksi [515 MPa] | 30 ksi [205 MPa] |
TP304 stainless steel seamless heat exchanger tube Key Features and Characteristics
Standard: ASTM A269 covers austenitic stainless steel pipe for general corrosion resistance and low/high temperature applications.
Grade: TP304 refers to austenitic stainless steel with a chromium content of approximately 18% and a nickel content of approximately 8% ("18/8").
Construction: "Seamless" indicates that the pipe is manufactured without welds, resulting in higher strength and pressure-bearing capacity than welded pipe.
Mechanical Properties: This pipe is known for its excellent mechanical properties and impact toughness at low temperatures.
Corrosion Resistance: It offers good resistance to atmospheric, industrial, and certain oxidizing chemical environments.
Temperature Performance: The material maintains its integrity and long service life at elevated temperatures.
TP304 stainless steel seamless heat exchanger tube Applications
Heat Exchangers: Commonly used in heat transfer applications due to its high-pressure and high-temperature resistance.
Instrumentation: Widely used to connect various instruments, valves, and measuring equipment in chemical and petrochemical processes.
Petrochemical Industry: Used in refineries, fertilizer plants, and cross-border pipelines. Hydraulic and gas systems: used for high-purity gas pipelines and hydraulic lines.
Gnee Steel specializes in the production and sale of a wide range of stainless steel products, including 304, 316, 321, 904, 904L, 2205 Duplex, 2205 Duplex, and 316L stainless steel. Gnee Steel's products are widely used in the kitchen, aerospace, chemical, power, automotive, and nuclear energy sectors. We also provide custom stainless steel solutions tailored to customer needs. For stainless steel pricing or custom alloy solutions, please email ru@gneesteelgroup.com for a quote.
