TC Gasket
What are TC Gaskets?
A TC Gasket (Tri-Clamp Gasket) is a vital sealing component used in hygienic piping systems to ensure leak-proof connections between two TC ferrules. Positioned between ferrules and held tightly using a clamp, the gasket ensures a secure, sanitary seal for high-purity applications.
Asiad Steel Industries is a trusted TC Gasket supplier, offering high-performance gaskets engineered for reliable, contamination-free sealing in demanding environments.
Key Features
Leak-Proof
Jointing
Sanitary
Design
Easy to
Clean
Standards
Compliant
Corrosion
Resistant
Specifications
| Specification Category | Parameter / Feature | Details / Options |
|---|---|---|
| Size Range | Nominal Pipe Size (NPS) | ½” to 48” (DN15 – DN1200) |
| Pressure Ratings | ANSI / ASME Class | Class 150, 300, 600, 900, 1500, 2500 |
| PN Ratings | PN | PN6, PN10, PN16, PN25, PN40, PN64 |
| Fitting Types | TC Gasket | Tri-Clover Sanitary Gasket (Round, Flat, Ring Type) |
| Material Options | Stainless Steel | SS 304, SS 304L, SS 316, SS 316L, SS 321 |
| Standards & Certifications | ASME / ANSI | ASME BPE, ASME B16.20 (Gaskets) |
| ASTM | ASTM F37 (Sanitary Gasket Standard) | |
| European Standards | DIN 32676, ISO 2852 | |
| Certifications | ISO 9001, PED 2014/68/EU, 3A Sanitary Standards | |
| Design Features | Thickness | 1.0 – 5.0 mm (depending on pipe size) |
| Surface Finish | Smooth / Polished per sanitary standards | |
| Tolerance | ±0.1 – 0.2 mm (material dependent) | |
| Coating & Surface Finish | Anti-Corrosion Coating | Not required for stainless steel |
| Optional Coatings | None (SS inherently corrosion-resistant) | |
| Surface Finish | Polished, Passivated | |
| Testing & Inspection | Pressure Testing | Hydrostatic / Pneumatic compatibility per piping system |
| Non-Destructive Testing | Not required for standard gaskets | |
| Destructive Testing | Tensile, Hardness (material validation only) |
Dimensions
| Nominal Pipe Size (NPS / DN) | Outer Diameter (OD) mm | Inner Diameter (ID) mm | Thickness mm | Cross-Section Type | Standard |
|---|---|---|---|---|---|
| ½” (DN15) | 21.3 | 13.5 | 2.0 | Round | ASME BPE / 3A |
| ¾” (DN20) | 26.9 | 19.0 | 2.0 | Round | ASME BPE / 3A |
| 1″ (DN25) | 33.7 | 25.0 | 2.0 | Round | ASME BPE / 3A |
| 1½” (DN40) | 48.3 | 40.0 | 2.5 | Round | ASME BPE / 3A |
| 2″ (DN50) | 60.3 | 50.0 | 2.5 | Round | ASME BPE / 3A |
| 2½” (DN65) | 76.1 | 65.0 | 3.0 | Round | ASME BPE / 3A |
| 3″ (DN80) | 88.9 | 76.0 | 3.0 | Round | ASME BPE / 3A |
| 4″ (DN100) | 114.3 | 102.0 | 3.5 | Round | ASME BPE / 3A |
| 6″ (DN150) | 168.3 | 152.0 | 4.0 | Round | ASME BPE / 3A |
| 8″ (DN200) | 219.1 | 200.0 | 4.5 | Round | ASME BPE / 3A |
| 10″ (DN250) | 273.0 | 250.0 | 5.0 | Round | ASME BPE / 3A |
| 12″ (DN300) | 323.9 | 300.0 | 5.0 | Round | ASME BPE / 3A |
Mechanical Properties
| Property | Value | Unit / Standard |
|---|---|---|
| Tensile Strength | 485 – 750 | MPa (Stainless Steel reinforced, full SS, or PTFE) |
| Yield Strength | 170 – 450 | MPa |
| Hardness | 80 – 200 | HB (Brinell, material dependent) |
| Elongation | ≥ 20 – 30 | % |
| Density | 1.5 – 8.0 | g/cm³ (PTFE to Stainless Steel) |
| Impact Toughness | ≥ 27 – 70 | J (Charpy, grade-dependent) |
| Modulus of Elasticity (E) | 0.5 – 200 | GPa (PTFE to Stainless Steel) |
| Fatigue Strength | 100 – 450 | MPa |
| Corrosion Resistance | Excellent (SS/PTFE) | – |
| Thermal Conductivity | 0.25 – 50 | W/m·K |
| Coefficient of Thermal Expansion | 10 – 17 ×10⁻⁶ | /°C |
| Yield Ratio (YS/UTS) | 0.40 – 0.65 | – |
| Poisson’s Ratio | 0.27 – 0.30 | – |
| Brinell Hardness Range | 80 – 200 | HB |
| Surface Finish | Smooth / Polished / Passivated | – |
| Operating Temperature Range | -46 to 260 | °C (PTFE) / -46 to 600 °C (SS) |
| Pressure Rating | Suitable for Class 150 – 2500 piping | ASME BPE / 3A Standards |
Chemical Composition
| Element | SS 304 (%) | SS 304L (%) | SS 316 (%) | SS 316L (%) |
|---|---|---|---|---|
| Carbon (C) | ≤ 0.08 | ≤ 0.03 | ≤ 0.08 | ≤ 0.03 |
| Manganese (Mn) | ≤ 2.00 | ≤ 2.00 | ≤ 2.00 | ≤ 2.00 |
| Silicon (Si) | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.045 | ≤ 0.045 | ≤ 0.045 | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 | ≤ 0.030 | ≤ 0.030 | ≤ 0.030 |
| Chromium (Cr) | 18.0 – 20.0 | 18.0 – 20.0 | 16.0 – 18.0 | 16.0 – 18.0 |
| Nickel (Ni) | 8.0 – 10.5 | 8.0 – 12.0 | 10.0 – 14.0 | 10.0 – 14.0 |
| Molybdenum (Mo) | — | — | 2.0 – 3.0 | 2.0 – 3.0 |
| Iron (Fe) | Balance | Balance | Balance | Balance |
Applications of TC Gaskets
Dairy & Food Processing
Units
Beverage Plants
Pharmaceutical
Cosmetic & Personal
Care
Chemical & Enzyme
Production
Laboratory and Testing
Facilities
Do you have questions?
What is the purpose of a TC Gasket?
Why are TC gaskets important in sanitary processing systems?
How do I choose the right TC gasket size?
Are TC gaskets reusable?
