ASTM A269 TP304 stainless steel industrial pipe
ASTM A269 TP304 stainless steel pipe is a general corrosion-resistant pipe for low or high temperatures and is available in both seamless and welded forms. It is widely used in industries such as food processing, chemical and pharmaceutical industries due to its durability and excellent corrosion resistance. Key properties include its chemical composition (18-20% chromium, 8-12% nickel) and its good resistance to oxidation within a specific temperature range.
What are the ASTM specifications for 304 stainless steel?
The main ASTM specifications for 304 stainless steel depend on the product form: ASTM A240 for plate, sheet, and strip; ASTM A240 for plate, sheet, and strip; ASTM A276 for rod and rod; and ASTM A312 for pipe. Other specifications, such as ASTM A479 for bars and billets, also apply. These standards cover chemical composition, mechanical properties such as tensile strength and yield strength, and applicable processing and finishing conditions.
ASTM A269 TP304 Stainless Steel Industrial Pipe for Critical Applications
Our TP304 pipe is manufactured in full compliance with ASTM A269 Standard Specification for Seamless and Welded Austenitic Stainless Steel Pipe and offers superior corrosion resistance, high temperature stability and sanitary performance. Ideal for instrumentation, pharmaceutical, food processing and chemical applications where material purity and dimensional accuracy are critical. Tubing is available with an annealed (per ASME SB-269) or bright annealed (BA) surface finish.
Chemical Composition (TP304 Alloy Chemistry)
ASTM A269 TP304 Tube Chemical Composition (Weight %)
| Element | ASTM A269 Min (%) | ASTM A269 Max (%) | Typical TP304 Value |
|---|---|---|---|
| Carbon (C) | - | 0.08 | 0.05 |
| Chromium (Cr) | 18.0 | 20.0 | 18.2 |
| Nickel (Ni) | 8.0 | 11.0 | 8.1 |
| Manganese (Mn) | - | 2.0 | 1.5 |
| Silicon (Si) | - | 1.0 | 0.6 |
| Phosphorus (P) | - | 0.045 | 0.03 |
| Sulfur (S) | - | 0.03 | 0.01 |
| Iron (Fe) | Balance | - | 71.5 |
Equivalent Grades ( Global TP304 Material Equivalents)
International Cross-Reference for TP304 Tubing
| Standard | Grade | Common Names |
|---|---|---|
| ISO | 1.4301 | X5CrNi18-10 |
| EN | X5CrNi18-10 | 304 |
| JIS | SUS 304 | 304 |
| ASME | SA-269 TP304 | 304 SS |
| UNS | S30400 | - |
Mechanical Properties (TP304 Tube Performance)
ASTM A269 TP304 Mechanical Properties (Annealed Condition)
| Property | ASTM A269 Requirement | Typical Value |
|---|---|---|
| Tensile Strength | ≥ 515 MPa (75 ksi) | 550 MPa |
| Yield Strength (0.2% Offset) | ≥ 205 MPa (30 ksi) | 240 MPa |
| Elongation (% in 50mm) | ≥ 35% | 55% |
| Hardness (Rockwell B) | ≤ 90 HRB | 80 HRB |
Dimensional Tolerances (H2: TP304 Tube Precision)
ASTM A269 Standard Tolerances for TP304 Tubing
| Dimension | Seamless Tube Tolerance | Welded Tube Tolerance |
|---|---|---|
| OD (mm) | ±0.10 mm (≤25.4mm OD) ±0.38 mm (>25.4mm OD) |
±0.13 mm (≤25.4mm OD) ±0.25 mm (>25.4mm OD) |
| Wall Thickness | ±10% | ±10% |
| Straightness | 3.2 mm/m max | 3.2 mm/m max |
| Cut Length | +3.2 mm / -0 mm | +3.2 mm / -0 mm |
Applications (TP304 Material Applications)
Industry-Specific Uses of ASTM A269 TP304 Tubes
| Industry | Critical Applications |
|---|---|
| Medical Devices | Hypodermic needles, surgical instruments, implantable device components |
| Pharmaceutical | Bioreactor transfer lines, CIP/SIP systems, sterile fluid handling |
| Food & Beverage | Dairy processing pipes, brewery transfer lines, FDA-compliant fittings |
| Chemical Processing | Heat exchanger tubes, corrosive fluid transfer, sampling systems |
| Instrumentation | Pressure gauge tubing, chromatography columns, sensor housings |
Gnee Steel specializes in the production of a wide range of stainless steel products. Gnee Steel's product packaging includes: Steel Strapping: Pipes with an outer diameter of 3 inches or less are typically strapped together with polypropylene film to prevent rust during ocean shipping, and then secured with steel strapping. Wooden Cases/Crates: Pipes are typically packaged in wooden cases or crates to protect the pipes during transportation, especially those that are longer or have larger diameters. Seaworthy Export Packaging: Suppliers typically use standard seaworthy export packaging methods, which may include a variety of materials and techniques to protect the pipes during transportation. Tarpaulin Packaging: This prevents rain, seawater, and other external factors from penetrating the export crates during transportation. Gnee Steel specializes in the production and sale of alloy materials. Gnee Steel's products are widely used in the aerospace, chemical, power, automotive, and nuclear energy sectors, and we can provide customized alloy material solutions based on customer needs. For alloy material pricing or customized alloy material solutions, please contact us for a quote: ru@gneesteelgroup.com
