ASTM A269 TP304 Stainless Steel Instrumentation Tubing Supplier
Precision ASTM A269 TP304 Seamless/Welded Stainless Steel Tubing | Corrosion-Resistant & Medical Grade
Product Overview (TP304 Material-Centric Heading)
TP304 Stainless Steel Tubing for Critical Applications
Manufactured in full compliance with ASTM A269 Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing, our TP304 tubes deliver exceptional corrosion resistance, high-temperature stability, and hygienic properties. Ideal for instrumentation, pharmaceutical, food processing, and chemical applications where material purity and dimensional precision are paramount. Tubes are supplied in annealed (ASME SB-269 compliant) or bright annealed (BA) finishes.
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 |
Why Choose Our TP304 Tubes? ( Material Advantage)
- Certified Compliance: Mill test reports (MTRs) per ASTM A269 traceable to heat number
- Surface Integrity: BA/EP finishes available with Ra ≤ 0.8 μm for ultra-clean applications
- Size Range: OD 1.6mm to 114.3mm | Wall thickness 0.2mm to 5.0mm
- Processing: Laser cutting, bending, polishing per AMS 2700
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