ANSI B16.47 Series A B Class #150 300 400 600 900 Lb DN1500 Large-Size Flanges
ANSI B16.47 Series A/B Large-Size Flanges DN1500 | Class 150/300/400/600/900 LB | SSM
SSM is a leading manufacturer and global supplier of ANSI B16.47 Series A and B large-size flanges, designed for high-pressure, large-diameter industrial piping systems. Our DN1500 flanges are engineered for oil & gas, petrochemical, and power plant applications, ensuring durable, reliable, and leak-proof connections.
1. Product Overview
The DN1500 ANSI B16.47 Series A/B Flanges are ideal for large-diameter pipelines where high-pressure and high-temperature conditions require robust and precise flange connections.
Standard: ANSI B16.47 Series A / B
Size: DN1500 (60")
Pressure Rating: Class 150 / 300 / 400 / 600 / 900 LB
Material: Carbon Steel, Stainless Steel, Alloy Steel
Facing Type: RF (Raised Face) / FF (Flat Face) / RTJ (Ring Type Joint)
Applications: Oil & gas, petrochemical, chemical, power plants, and industrial piping systems
2. Material Composition
SSM large-size flanges are available in:
Carbon Steel (A105 / A350 LF2)
High strength and toughness for moderate temperature and pressure
Good weldability and cost-effective
Stainless Steel (A182 / A403)
Excellent corrosion resistance in harsh industrial environments
High mechanical strength at moderate to high temperatures
Alloy Steel (A815 / F11 / F22)
Exceptional high-temperature strength and toughness
Suitable for power plant, oil refinery, and high-pressure applications
3. Mechanical Properties (Typical)
| Material | Tensile Strength | Yield Strength | Elongation | Hardness |
|---|---|---|---|---|
| Carbon Steel | ≥ 485 MPa | ≥ 205 MPa | ≥ 20% | ≤ 217 HB |
| Stainless Steel | ≥ 515 MPa | ≥ 205 MPa | ≥ 30% | ≤ 217 HB |
| Alloy Steel | ≥ 620 MPa | ≥ 290 MPa | ≥ 25% | ≤ 235 HB |
4. Key Features
✅ Large Diameter Range: Supports DN1500 pipelines
✅ High Pressure Ratings: Class 150–900 LB for versatile industrial applications
✅ Corrosion Resistance: Stainless steel and alloy options for harsh environments
✅ Durable & Reliable: Withstands high stress, pressure, and temperature
✅ Standard Compliance: Fully compliant with ANSI B16.47 Series A/B
5. Advantages and Limitations
Advantages:
Reliable performance in high-pressure, large-diameter piping systems
Long service life with resistance to corrosion and oxidation
Versatile material options for multiple industrial environments
Limitations:
Requires special handling and transport due to large size
Higher cost compared to smaller flanges
6. Applications
Oil & Gas Transmission Pipelines
Petrochemical and Chemical Plants
Power Generation and Steam Systems
Large-Scale Water Treatment Facilities
Industrial and Marine Piping Systems
7. Why Choose SSM
Over 30 years of experience in large-diameter flange manufacturing
Certified under ISO 9001 / EN 10204 3.1
Full compliance with ANSI B16.47 Series A/B and MSS SP-44
Advanced forging, CNC machining, and NDT inspection
Global delivery and custom design services available
8. Conclusion
The SSM DN1500 ANSI B16.47 Series A/B Flange is engineered for strength, durability, and reliability in high-pressure, large-diameter piping systems.
With multiple pressure classes and material options, these flanges are ideal for oil, gas, petrochemical, power, and industrial applications.
📩 Contact SSM today for a quotation or custom specifications for your DN1500 large-size flange.
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