ASTM A213 T2 Condenser Tubes | High-Temp Seamless Boiler Tubing
Engineered for reliability in medium-to-high temperature thermal processing, our ASTM A213 Grade T2 Seamless Tubes deliver superior resistance to graphitization, thermal fatigue, and creep deformation. Designed specifically for high-duty surface condensers, power generation boilers, and shell-and-tube heat exchangers, these low-alloy chrome-molybdenum tubes provide a cost-effective, long-service life solution where standard carbon steel falls short.
ASTM A213 / ASME SA213 Grade T2 is a low-alloy ferritic steel containing balanced additions of Chromium (≈0.50%−0.81%) and Molybdenum (≈0.44%−0.65%). The integration of these elements ensures enhanced structural stability at continuous operating temperatures ranging from 480∘C to 540∘C (900∘F to 1000∘F).
- Graphitization Prevention: The addition of chromium stabilizes carbides, preventing microstructural breakdown under prolonged heat exposure.
- Elevated Creep Strength: Molybdenum improves mechanical load-bearing capacity under continuous thermal stress.
- Optimal Thermal Conductivity: Outperforms higher-alloy stainless steels in heat transfer efficiency, reducing condensation cycle energy losses.
- Superior Weldability & Workability: Ideal for rolling, expanding, and welding directly into condenser tubesheets.
All seamless T2 tubes are manufactured via cold drawing or hot finishing to maintain tight dimensional tolerances and uniform wall thickness.
| Parameter | Standard Range / Specification |
|---|---|
| Outer Diameter (OD) | 1/8 in to 5 in (3.2 mm to 127 mm) |
| Wall Thickness (WT) | 0.015 in to 0.500 in (0.4 mm to 12.7 mm) / Schedule 10 to XXS |
| Wall Type | Minimum Wall Thickness or Average Wall Thickness (per order requirement) |
| Lengths | Single Random, Double Random, Cut-to-Length (Up to 16 meters) |
| Tube Ends | Plain End, Beveled End, Expanded End |
| Element | Carbon (C) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Silicon (Si) | Chromium (Cr) | Molybdenum (Mo) |
|---|---|---|---|---|---|---|---|
| Content Range | 0.10−0.20 | 0.30−0.61 | ≤0.025 | ≤0.025 | 0.10−0.30 | 0.50−0.81 | 0.44−0.65 |
| Property | Value / Requirement |
|---|---|
| Tensile Strength, min | 60 ksi (415 MPa) |
| Yield Strength, min | 30 ksi (205 MPa) |
| Elongation in 2 in. (50 mm), min | 30% |
| Hardness (Brinell / Rockwell B), max | 163 HBW / 85 HRB |
| Heat Treatment | Full/Isothermal Anneal or Normalizing & Tempering (650∘C−730∘C) |
Every length of our ASTM A213 T2 seamless tubing undergoes rigorous non-destructive and mechanical testing in compliance with ASTM A1016 standards.
- Hydrostatic & NDT Testing: 100% Eddy Current Testing (ECT) or Ultrasonic Testing (UT) combined with hydrostatic pressure testing to verify pressure integrity.
- Mechanical Verification: Flaring, Flanging, Flattening, Hardness, and Tensile testing performed per heat batch.
- Microstructural & Grain Size Inspection: Grain size analysis per ASTM E112 to verify uniform thermal treatment.
- Certification: Material Test Report (MTR) provided in full compliance with EN 10204 3.1 / 3.2
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