Table H Flanges
What are Table H Flanges?
Table H Flanges are high-pressure pipe flanges defined under AS 2129 standards, commonly used in demanding applications like steam pipelines, chemical processing plants, and industrial fluid systems. These flanges are designed for critical operations that require superior sealing and strength under high temperature and pressure conditions.
Asiad Steel Industries is a leading manufacturer and exporter of Table H Flanges, offering a wide range of sizes, face types, and materials including stainless steel, carbon steel, and alloy steel for global industrial use.
Key Features
- High Pressure Tolerance – Rated for demanding environments such as steam and pressure pipelines
- Tight Sealing – Suitable for raised face connections ensuring minimal leak paths
- Rugged Construction – Ideal for thermal expansion and vibration-prone systems
- Corrosion & Heat Resistant – Available in durable materials and coated finishes
- Standards Compliant – Manufactured as per AS 2129 Table H with strict dimensional accuracy
Types of Table H Flanges
- Table H Blind Flanges
- Table H Weld Neck Flanges
- Table H Slip-On Flanges
- Table H Socket Weld Flanges
- Table H Lap Joint Flanges
Specifications
Mechanical Properties
Chemical Composition
Equivalent Grades
Weight Chart
Specifications
| Parameter | Specification |
|---|---|
| Standard | AS 2129 Table H |
| Pressure Class | Up to 3500 kPa (approx. 500 psi) |
| Sizes | 15 NB to 1200 NB |
| Face Type | Raised Face (RF) or Flat Face (FF) |
| Material Options | SS 304 / 316, Carbon Steel, Duplex |
| Coating | Galvanized, Epoxy, Anti-rust Oil |
| Property | Value |
|---|---|
| Tensile Strength | 520 – 750 MPa |
| Yield Strength | 240 – 480 MPa |
| Hardness | 130 – 200 HB |
| Elongation | ≥ 18% |
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.10 – 0.30 |
| Manganese (Mn) | 0.60 – 1.70 |
| Silicon (Si) | 0.10 – 0.60 |
| Chromium (Cr) | 17.0 – 20.0 (SS) |
| Nickel (Ni) | 8.0 – 11.0 (SS) |
| Molybdenum (Mo) | 2.0 – 3.0 (F316) |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.030 |
| Standard | Equivalent Grade |
|---|---|
| ASTM | A105, A182 F304/F316 |
| EN | 1.4301 / 1.4404 |
| DIN | 2635 / 2527 |
| BS | 4504 |
| Flange Size (NB) | Type | Approx. Weight (kg) |
|---|---|---|
| 50 NB | Weld Neck | 4.20 |
| 80 NB | Blind | 6.80 |
| 100 NB | Slip-On | 10.20 |
| 150 NB | Blind | 16.40 |
| 200 NB | Weld Neck | 24.00 |
Applications of Table H Flanges
Construction &
Infrastructure
Automotive & Heavy
Equipment
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
What is the pressure rating of Table H Flanges?
Table H Flanges are rated for approximately 3500 kPa or 500 psi.
Are Table H Flanges suitable for elevated temperature use?
Yes, especially when made with stainless steel or alloy steel, they perform well under high temperatures.
What face types are available in Table H Flanges?
These flanges are typically available in Raised Face (RF) and Flat Face (FF) finishes.
Can these flanges be customized for non-standard applications?
Absolutely. We provide custom drilling, coating, and size adjustments on request.
