ASME SA213 TP304 Seamless Stainless Steel Tube
TP304 (commonly known as 304 or as 1.4301 per the European EN standard) is an austenitic stainless steel. Its defining characteristic
lies in the synergistic effect of Chromium (Cr) and Nickel (Ni),
which endows it with excellent corrosion resistance, formability,
and weldability. It is a typical representative of general-purpose
stainless steels, widely used in numerous industrial and civilian
fields. With a relatively high cost-performance ratio, it has
become a preferred material for basic corrosion-resistant
scenarios.
ASME SA213 TP304 Seamless Stainless Steel Tube is a
high-performance, precision-engineered tubular product designed
specifically for moderately corrosive, multi-medium contact, and
general industrial scenarios. It is commonly used in piping
systems, heat exchangers, food equipment, and more.
Chemical Composition
TP304 Chemical Composition (%)
| Element | C | Si | Cr | Mn | P | Ni | S | N |
| Range | ≤ 0.080 | ≤ 0.75 | 18.00–20.00 | ≤ 2.00 | ≤ 0.045 | 8.00–11.00 | ≤ 0.030 | ≤ 0.10 |
Mechanical Properties
TP304 Mechanical Properties
| Tensile Strength | Yield Strength | Hardness (HB) | Elongation |
| ≥ 515 MPa | ≥ 205 MPa | ≤ 192 HB | ≥ 40% |
Equivalent Materials
| ASTM/AISI | UNS No. | EN | ISO | JIS | GB/T |
| TP304 | S30400 | 1.4301 | X5CrNi18-10 | SUS304 | 06Cr19Ni10 |
TP304 vs. TP304L and TP316
TP304 vs. TP304L: TP304L is the low-carbon version of TP304 (with C ≤ 0.03). Its
core advantage is superior resistance to intergranular corrosion
after welding, making it suitable for scenarios where frequent
welding and harsh corrosive environments are involved. In contrast,
TP304 is more cost-effective and versatile, performing well in
non-extreme welding and corrosion scenarios.
TP304 vs. TP316: TP316, due to the addition of Molybdenum (Mo), exhibits better
performance in pitting corrosion resistance, seawater corrosion
resistance, and resistance to strongly reducing media. However, it
comes at a higher cost. TP304, on the other hand, is reliable in
general corrosive media (such as air, water, weak acids and
alkalis), making it a more cost-effective general choice.
Application of ASME SA213 TP304 Seamless Stainless Steel Tube
1.Chemical & Petrochemical Industry: Used in various heat exchangers, condensers, and piping systems
handling a wide range of corrosive chemical media.
2.Power Generation Sector: Serves as heat transfer tubes in boilers, superheaters, and heat
recovery systems, suitable for medium to high-pressure steam
environments.
3.Food & Pharmaceutical Equipment: Widely used in sterile heat exchange equipment and fluid transfer
pipelines due to its good cleanability and corrosion resistance.
4.Construction & HVAC: Applied in Heating, Ventilation, and Air Conditioning (HVAC)
systems, district heating pipelines, and other heat exchange units.
5.General Industrial Applications: Includes heat exchange and pressure piping in pulp & paper,
offshore platforms, and environmental engineering projects.
