Hot Forged Carbon Steel Flanges: Integral hot forged carbon steel flange, high strength, pressure resistance and tight sealing, specially engineered for oil & gas pipeline transmission projects
Product: Hot Forged Carbon Steel Pipe Flanges
MOQ: 1 Piece
Model NO: Custom / Standard ANSI, ASME, DIN, JIS
Size: DN15 – DN2000 / 1/2" – 80"
Pressure Class: Class150, 300, 600, 900, 1500, 2500; PN10–PN160
Machining Tolerance: Strict flange standard tolerance
Application: Oil & Gas Pipeline, Petrochemical, Refinery, Natural Gas Transmission
Material: Carbon Steel A105, Q235, 20#, S235JR, A350 LF2
Type: Weld Neck, Slip On, Blind, Socket Weld, Threaded, Lap Joint Flange
Surface Treatment: Anti-rust Oil, Black Painting, Galvanizing
Manufacturing Process: Hot Forging, Rough Machining, Finish Machining, Heat Treatment
Plant: Direct Forging Factory Supply
After-sales Service: 24h Online Support
Warranty: Quality Guarantee
Certification: ISO 9001, CE, API
Standard: ASME B16.5, B16.47, ANSI, DIN, GB, JIS
Inspection: UT, MT, Hardness Test, Chemical Composition Test, Dimension Full Inspection
Application: Oil and gas transmission pipelines, petrochemical plants, refineries, long-distance natural gas pipelines, pipeline engineering connection parts
Delivery Time: 10–30 days, negotiable
Transport Package: Wooden Cases, Anti-rust Packaging, Steel Frame Reinforcement
Advantage: Hot forged dense structure, high pressure resistance, no leakage, high toughness, anti-fatigue, full standard compliance
Features
- Hot forged integral forming, dense grain structure, higher strength than cast flanges
- Excellent high pressure and high temperature resistance for oil & gas pipeline working conditions
- Good sealing performance, stable connection, no leakage under long-term pipeline pressure
- Strong impact resistance and fatigue resistance, suitable for outdoor and harsh field environments
- Strictly follow ASME/ANSI international standards, fully compatible with pipeline fittings
- Various flange types and pressure grades available for project matching
Material & Grade
Main carbon steel grades: A105, A350 LF2, 20# carbon steel, Q235, S235JR
Suitable for medium and high pressure oil, natural gas and petrochemical pipeline systems.
Main Flange Types
- Weld Neck Flange
- Slip On Flange
- Blind Flange
- Socket Weld Flange
- Threaded Flange
- Lap Joint Flange
FAQ
Q: Are you real hot forged flanges?
A: Yes, 100% hot forged, not casting; higher density and pressure bearing capacity.
Q: Can supply ANSI/ASME standard?
A: Fully support ASME B16.5, B16.47 and all international standards.
Q: Support custom size and drilling?
A: Yes, customized drawing production and special drilling pattern available.
Q: What inspection can you provide?
A: UT/MT nondestructive testing, material PMI, hardness and dimension full inspection.
Our Strengths
- Professional hot forging factory with long-term oil & gas pipeline supporting experience
- Stable raw material supply, strict chemical and mechanical property control
- Complete standard inventory + custom OEM service
- Export to global oil, gas and petrochemical engineering projects
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