ASTM A182 F321 Tube Sheet Manufacturer |Stainless Steel 321 Tube Sheet Supplier
We are a leading manufacturer and exporter of ASTM A182 F321 tube sheets, offering precision-forged and CNC-machined tube sheets made from stabilized austenitic stainless steel for use in heat exchangers, condensers, boilers, and pressure vessels.
ASTM A182 F321 (SS321) tube sheets are critical pressure-retaining components in shell-and-tube heat exchangers, condensers, and boilers. Fabricated from titanium-stabilized austenitic stainless steel, these tubesheets deliver exceptional:
- 🔥 High-Temperature Stability: Resist oxidation up to 815°C (1,500°F)
- ⚙️ Intergranular Corrosion Resistance: Titanium carbides prevent sensitization in welding/HTHA zones
- 📏 ASME BPVC Section VIII Compliance: Certified for pressure vessel construction
What is ASTM A182 F321?
ASTM A182 F321 is a titanium-stabilized stainless steel alloy (equivalent to UNS S32100), specifically designed to resist intergranular corrosion at high temperatures. It is ideal for welded applications in corrosive and high-heat environments.
ASTM A182 F321 is a specification that covers forged or rolled austenitic stainless steel pipe flanges, forged fittings, valves, and parts intended for high-temperature and corrosive service. Grade F321 is a titanium-stabilized version of stainless steel 304, offering improved resistance to intergranular corrosion after welding and prolonged exposure to elevated temperatures.
What is a Tube Sheet?
A Tube Sheet is a flat, round metal plate that is precision drilled with a pattern of holes to accommodate the tubes in a shell and tube heat exchanger. It serves as a mechanical support and a sealing surface to isolate the tube-side and shell-side fluids.
Chemical Composition of ASTM A182 F321 (%):
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.08 |
| Manganese (Mn) | ≤ 2.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Silicon (Si) | ≤ 1.00 |
| Chromium (Cr) | 17.0 – 19.0 |
| Nickel (Ni) | 9.0 – 12.0 |
| Titanium (Ti) | ≥ 5×(C + N) and ≤ 0.70 |
Mechanical Properties of ASTM A182 F321 (Minimum):
| Property | Value |
|---|---|
| Tensile Strength | ≥ 515 MPa (75 ksi) |
| Yield Strength (0.2%) | ≥ 205 MPa (30 ksi) |
| Elongation (in 2″) | ≥ 30% |
F321 Tube Sheets Specification
- Material: ASTM A182 Grade F321 / UNS S32100
- Standard: ASTM A182 / ASME SA182
- Form: Solid Round Tube Sheet / Bored Tube Sheet / Drilled Tube Plate
- Manufacturing Method: Forged + Annealed + Precision Machined
- Size Range: OD up to 3000 mm or custom dimensions
- Thickness: As per design or drawing
Key Features of our F321 Tube Sheets
- Excellent resistance to intergranular corrosion
- Superior creep and stress rupture resistance at elevated temperatures
- Suitable for use in temperatures up to 900°C (1650°F)
- Improved weldability and toughness over standard 304/316
- Available in solution annealed condition with optional PMI, UT, and RT testing
Applications of A182 F321 tubesheets
- Shell and Tube Heat Exchangers
- Seawater Desalination Units
- Petrochemical and Refinery Equipment
- Steam Condensers
- Pressure Vessels and Boilers
Why Choose our SS321 Tubesheet
- ISO 9001 and PED Certified Manufacturer
- In-house forging, heat treatment, CNC machining, and drilling
- 100% dimension and hole accuracy inspection
- Global export experience with full documentation (EN 10204 3.1 / 3.2, NDT, PMI, etc.)
Download ASTM A182 Forging specification
Contact us for a quote
Request a quote today for ASTM A182 F321 tube sheets. We offer custom manufacturing, fast delivery, and global supply support for your critical heat exchanger and pressure vessel projects.
ASME-certified ASTM A182 F321 (UNS S32100) stainless steel tube sheets for heat exchangers & boilers. Superior creep strength, oxidation resistance up to 815°C. Get instant quotes.
