Premium ASTM A249 TP316L Welded Stainless Steel Tubes
Engineered for superior performance in corrosive and
high-temperature environments, our ASTM A249 TP316L welded tubes
deliver exceptional durability and purity. Ideal for critical
applications in heat exchangers, boilers, and pharmaceutical
systems, these tubes meet rigorous international standards for
material consistency and weld integrity.
Exact Chemical Composition of TP316L Stainless Steel
TP316L’s low carbon content (≤0.03%) maximizes corrosion resistance
and minimizes carbide precipitation during welding. Conforms to
ASTM A249/A269 specifications.
| Element | Content (%) | ASTM A249 Requirement |
|---|
| Carbon (C) | ≤0.030 | ≤0.030 |
| Manganese (Mn) | ≤2.00 | ≤2.00 |
| Phosphorus (P) | ≤0.045 | ≤0.045 |
| Sulfur (S) | ≤0.030 | ≤0.030 |
| Silicon (Si) | ≤0.75 | ≤1.00 |
| Chromium (Cr) | 16.0–18.0 | 16.0–18.0 |
| Nickel (Ni) | 10.0–14.0 | 10.0–14.0 |
| Molybdenum (Mo) | 2.00–3.00 | 2.00–3.00 |
| Iron (Fe) | Balance | Balance |
Global Equivalent Grades
TP316L is recognized under these international standards:
| Standard | UNS | EN (EU) | JIS (Japan) | GB (China) |
|---|
| Designation | S31603 | 1.4404 / 1.4432 | SUS 316L | 022Cr17Ni12Mo2 |
Mechanical Properties of ASTM A249 TP316L Welded Tubes
Tested per ASTM A249 Section 7 for guaranteed performance:
| Property | Value | Test Method |
|---|
| Tensile Strength | ≥485 MPa (70 ksi) | ASTM E8 |
| Yield Strength | ≥170 MPa (25 ksi) | ASTM E8 |
| Elongation | ≥35% (in 2") | ASTM E8 |
| Hardness (Max) | 217 HB / 95 HRB | ASTM E10 / E18 |
Key Advantages of ASTM A249 TP316L Welded Tubes
- Corrosion Resistance: Mo-enhanced defense against pitting/crevice
corrosion in chlorides & acids.
- Weld Integrity: Low carbon prevents sensitization; seamless-like
strength at welded joints.
- High-Temperature Stability: Performs in continuous service up to
870°C (1600°F).
- Hygienic Surface: Electropolishing option for FDA/USP Class VI
compliance.
- Formability: Excellent ductility for bending/flaring without
cracking.
Critical Applications
TP316L welded tubes are specified for:
- Heat Exchangers & Condensers (ASME BPVC Section VIII)
- Pharmaceutical/Biotech: CIP/SIP systems, fermenters
- Food & Beverage: Pasteurizers, brewing lines
- Marine & Coastal: Seawater cooling, desalination plants
- Chemical Processing: Acid storage, reagent lines
Ordering Information
Available in:
- Sizes: 1/8" to 24" OD | Wall Thickness: Sch 5S to Sch 80S
- Lengths: Custom cut up to 20m | Surface: Mill finish, pickled,
electropolished
- Certifications: MTRs per EN 10204 3.1, NDE per ASTM A450
(hydrostatic/eddy current)
Why Choose Our ASTM A249 TP316L Welded Tubes?
- Traceability: Full heat/lot tracking from melt to final inspection.
- Compliance: Conforms to ASME BPV, PED 2014/68/EU, and
AD2000-Merkblätter.
- Customization: Laser-cut, bevelled, or passivated per project
specs.
