ASTM A269 TP304 stainless steel seamless pipe for heat exchangers
ASTM A269 TP304 seamless stainless steel pipe is a widely used, general-purpose austenitic stainless steel suitable for a variety of heat exchanger applications due to its good mechanical properties and general corrosion resistance, but it may be susceptible to pitting corrosion in high-chloride environments. Key features include seamless construction, heat treatability (annealing), and the need for non-destructive testing such as hydrostatic or electrical testing to ensure quality.
What is TP304 stainless steel?
ASTM A312 TP 304/304L stainless steel pipe is the most widely used and commonly used stainless steel on the market. These grades of stainless steel are austenitic chromium alloys, also known as "18/8" stainless steel due to their composition of 18% chromium and 8% nickel.
ASTM A269 TP304 Seamless Stainless Steel Heat Exchanger Tube
ASTM A269 TP304 seamless stainless steel tube is a high-performance heat transfer component suitable for a wide range of heat exchanger applications across a wide range of industries. It combines the excellent corrosion resistance of TP304 austenitic stainless steel with good thermal performance and structural strength, making it an indispensable solution for the harsh environments of the chemical, food, pharmaceutical, and heating, ventilation, air conditioning, and refrigeration (HVAC&R) industries.
TP304 is an austenitic stainless steel characterized by its well-balanced alloy composition. The primary alloying elements are chromium (Cr, 18.00–20.00%) and nickel (Ni, 8.00–10.50%), which together form a passive chromium oxide layer that effectively resists corrosion. The carbon (C) content is limited to ≤0.08%, which helps avoid carbide precipitation problems in many operating environments.
TP304 stainless steel seamless pipe for heat exchangers Chemical Composition (%)
|
Element |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
N |
|
Range |
≤ 0.08 |
≤ 0.75 |
≤ 2.00 |
≤ 0.045 |
≤ 0.030 |
18.0-20.0 |
8.0-11.0 |
≤ 0.10 |
TP304 stainless steel seamless pipe for heat exchangers Mechanical Properties (Annealed Condition)
| Tensile Strength | Yield Strength (0.2% Offset) | Elongation (% in 2 inch) | Hardness (Max) |
| ≥ 515 MPa | ≥ 205 MPa | ≥ 35% | 192 HB |
ASTM A269 TP304 Seamless Stainless Steel Tubing in Heat Exchanger Applications
1. Chemical Industry: Heat exchangers used in acid processing, solvent recovery, and chemical reaction systems, where corrosion resistance is critical.
2. Food and Pharmaceutical Industry: Sanitary heat exchangers used in pasteurization, sterilization, and cleaning-in-place (CIP) systems to ensure product purity.
3. HVAC & Refrigeration Systems: Evaporators, condensers, and heat pumps in commercial and residential environments benefit from its corrosion resistance and thermal efficiency.
Marine and Desalination: Heat exchangers in seawater cooling systems and desalination plants withstand harsh saline environments.
4. Power & Energy Industry: Auxiliary heat exchangers in power plants and renewable energy systems contribute to efficient energy transmission and management.
TP304 stainless steel Heat Exchanger Pipe Applications
Versatility: Its combination of strength, heat resistance, and easy formability makes it a popular choice for standard heat exchanger designs across a wide range of industries.
Chemical and Food Processing: It is well-suited for applications involving acids and other harsh substances, as well as for food-grade equipment where non-reactivity is a priority.
Gnee Steel is a supplier of TP304 stainless steel seamless pipe. Our product offerings include seamless pipe (sizes: 4-219 mm, thickness: 0.5-20 mm); welded pipe (sizes: 5.0-1219.2 mm, thickness: 0.5-20 mm); plate (thickness: 0.1 to 100 mm, width: 10-2500 mm); strip; alloy round bar (sizes: diameter: 3-800 mm); flat bar (sizes: 2-100 mm, thickness: 10-500 mm); hexagonal bar (sizes: 2-100 mm); wire rod; and extruded sections. We partner with steel mills to provide customers with steel products that meet or exceed numerous leading industry standards, including ASTM, ASME, SAE, AMS, ISO, DIN, EN, and BS.
Gnee Steel stocks and sells TP304 stainless steel seamless pipe, tube, pipe, sheet, strip, plate, round bar, flat bar, forging billet, hexagon, wire rod, and extruded sections. Feel free to contact us for a quote at ru@gneesteelgroup.com.
