Forged flange
High-Quality Forged Flanges for Industrial Applications
Forged flanges are essential components in piping systems across various industries. As leading manufacturers of premium forged flanges, we ensure superior quality, durability, and performance for your most demanding applications.
Product Specifications
- Material: Carbon Steel, Stainless Steel, Alloy Steel
- Size Range: 1/2" to 60" (DN15 to DN1500)
- Pressure Rating: Class 150 to Class 2500
- Standards: ANSI/ASME, DIN, JIS, BS, EN
- Surface Treatment: Antirust Paint, Galvanized, Black Oxide
- Certifications: ISO 9001, PED, API, CE
| Type | Pressure Class | Temperature Range | Application |
|---|---|---|---|
| Weld Neck Forged Flange | 150-2500 | -20°F to 1000°F | High-pressure systems |
| Slip-On Forged Flange | 150-900 | -20°F to 800°F | Moderate pressure systems |
| Blind Forged Flange | 150-2500 | -20°F to 1200°F | System isolation |
| Socket Weld Forged Flange | 150-3000 | -20°F to 850°F | Small bore piping |
| Threaded Forged Flange | 150-2500 | -20°F to 500°F | Low pressure systems |
Forged Flange FAQ
What is the difference between forged flanges and cast flanges?
Forged flanges are manufactured through a forging process that compresses heated metal under high pressure, resulting in superior strength, tighter grain structure, and better mechanical properties compared to cast flanges. Forged flanges offer higher pressure ratings, better corrosion resistance, and greater impact resistance, making them ideal for critical applications in oil & gas, chemical processing, and power generation industries.
How do I select the right forged flange for my application?
When selecting a forged flange, consider these key factors: material compatibility (must match piping material), pressure rating (should exceed system requirements), temperature range (must accommodate operating conditions), size (must match pipe dimensions), and flange face type (raised face, flat face, or ring-type joint). Always consult with our engineering team for critical applications to ensure proper selection of forged flanges.
Manufacturing Process
Our forged flanges undergo a meticulous manufacturing process:
- Material selection and verification
- Heating to optimal forging temperature
- Precision forging under hydraulic presses
- Heat treatment for enhanced mechanical properties
- Machining to exact dimensional specifications
- Quality inspection and testing
- Surface treatment and protective coating
- Final inspection and certification
| Material Grade | Tensile Strength (min) | Yield Strength (min) | Elongation % | Impact Test Temperature |
|---|---|---|---|---|
| A105 (Carbon Steel) | 485 MPa | 250 MPa | 22% | -29°C |
| A182 F304 (Stainless) | 515 MPa | 205 MPa | 30% | -196°C |
| A182 F11 (Alloy Steel) | 485 MPa | 275 MPa | 20% | -18°C |
More Forged Flange Questions
What maintenance do forged flanges require?
Proper maintenance of forged flanges includes regular visual inspections for corrosion or leakage, bolt tension checks (especially after thermal cycling), gasket condition monitoring, and surface protection maintenance. In corrosive environments, more frequent inspections are recommended. Always follow the manufacturer's maintenance guidelines and industry standards (ASME PCC-1 for bolted flange connections) to ensure optimal performance and safety of your forged flanges.
Industrial Applications
Our forged flanges serve critical roles in numerous industries:
- Oil & Gas: Pipeline systems, refineries, offshore platforms
- Chemical Processing: Corrosive fluid handling systems
- Power Generation: High-temperature steam lines
- Water Treatment: Large diameter piping systems
- Shipbuilding: Marine piping networks
- Pharmaceutical: Sanitary process systems
- HVAC: Commercial and industrial systems
Quality Assurance
We implement rigorous quality control measures for all forged flanges:
- 100% material certification (MTC)
- Ultrasonic testing (UT) for internal defects
- Magnetic particle inspection (MPI) for surface flaws
- Dimensional verification at multiple stages
- Pressure testing per applicable standards
- Traceability throughout production
Our forged flanges meet or exceed all international standards including ASME B16.5, ASME B16.47, MSS SP-44, API 6A, and EN 1092-1. With decades of experience in manufacturing high-performance forged flanges, we guarantee products that deliver reliability, longevity, and optimal performance in your piping systems.