ASTM A213 TP304 Bright Annealed Seamless Tube 19×2.0×12000 mm
ASTM A213 TP304 bright annealed tubes are high-performance austenitic stainless steel tubes designed for high-temperature heat exchanger and refinery applications.
With an ultra-smooth internal surface and stable mechanical properties, these tubes ensure efficient heat transfer and long service life in demanding environments.
Key Features
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Bright Annealed (BA) finish → low roughness, better heat transfer
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Excellent corrosion resistance (18Cr-8Ni structure)
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Suitable for high-temperature service
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High dimensional accuracy
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Good weldability and formability

Technical Specification
| Item | Details |
|---|---|
| Standard | ASTM A213 / ASME SA213 |
| Grade | TP304 (UNS S30400) |
| Size | 19 × 2.0 × 12000 mm |
| Manufacturing | Seamless, Cold Drawn |
| Surface | Bright Annealed (BA) |
| Heat Treatment | Solution Annealed |
| NDT | 100% UT + ET + HT |
| Certification | EN10204 3.1 / 3.2 |
Chemical Composition
| Element | % |
|---|---|
| Cr | 18.0 – 20.0 |
| Ni | 8.0 – 10.5 |
| C | ≤ 0.08 |
| Mn | ≤ 2.0 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥ 515 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 35% |

Why Bright Annealed Tube for Refinery
Bright annealed tubes provide significant advantages in refinery systems:
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Smooth inner surface reduces scaling and fouling
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Improves heat transfer efficiency
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Reduces pressure loss in process pipelines
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Easier cleaning and maintenance
Quality Control
All tubes are tested according to ASTM A213:
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100% Ultrasonic Testing (UT)
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100% Eddy Current Testing (ET)
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100% Hydrostatic Testing (HT)
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Chemical Analysis
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Mechanical Testing
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Dimensional Inspection
Applications
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Oil Refineries
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Heat Exchangers
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Boilers & Superheaters
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Petrochemical Plants
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Process Pipelines

Packaging & Delivery
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Seaworthy wooden cases
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Waterproof protection
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Plastic caps on both ends
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Export-ready packaging
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FAQ
Q1: What is ASTM A213 TP304 tube used for?
Used for boilers, heat exchangers, and refinery systems.Q2: What is bright annealed tube?
A tube with a clean, smooth, oxide-free surface finish.Q3: Is TP304 suitable for oil refinery?
Yes, it offers good corrosion resistance and high-temperature performance.