Forged Flanges
Our precision forged steel flanges meet ASME B16.5 and ASTM A105 standards for demanding pipeline applications. Made using hot forging and closed-die forming, they deliver superior grain structure and up to 20% better impact resistance than cast flanges. Available in pressure classes 150 to 2500 across sizes DN15 to DN1200. We maintain tight dimensional control: CNC machining ensures bolt circles stay within ±0.25mm tolerances, with RF/RTJ sealing surfaces finished to a smooth 125-250 µin Ra. Materials include certified carbon steel (A105), stainless steel (A182 F304/F316), and alloy steels. Full Mill Test Report (MTR) traceability is standard; Positive Material Identification (PMI) verification is optional. Ready for international shipment in sturdy wooden crates. Request material certifications or technical datasheets anytime.
- Product Introduction
Forged Flanges
Built for demanding ASME B16.5 systems, our forged flanges gain exceptional strength from 10,000-ton hydraulic presses. The hot-forging process outperforms casting, refining the metal grain to provide 25% greater Charpy impact toughness at -46°C (ASTM A370).
We achieve extreme precision through triple-stage CNC machining: bolt circles maintained within ±0.15mm tolerance, and RTJ/RF sealing faces polished to 63-125µin Ra for leak-tight integrity up to 2.5x rated pressure.
Why Choose Our Flanges:
Verified Materials: ASTM A105 carbon steel or A182 F316 stainless. Fully PMI-verified and NACE MR0175 compliant for sour service.
Tested for Extremes: Third-party certified for reliable operation from cryogenic (-46°C) to high-heat (540°C) environments.
Proven Durability: Sustains 100,000+ pressure cycles without distortion (ASME Section VIII Div. 1 testing).
Complete Traceability: Full size range (DN15 - DN2600). Fully traceable manufacturing from raw billet to final product (EN 10204 3.1).
Trusted in zero-failure applications: offshore risers, hydrogen compression, nuclear cooling. All units include MTRs, NDE reports (UT/RT to ASME V), and VCI packaging to prevent corrosion.
Product Feature And Application
Hot-forged under 12,000-ton presses with closed-die forming, these flanges achieve 30% higher yield strength versus cast alternatives per ASTM A105/A182 specifications. Precision-machined RTJ/RF surfaces (63-125 μin Ra) maintain leak-tight integrity at 2.5x rated pressure across ASME B16.5 Class 150-2500, while PMI-certified materials ensure performance from cryogenic (-196°C) to 650°C service, including Inconel® 625/Hastelloy® C276 options. Validated for 250,000+ pressure cycles (ASME Section VIII) with NACE MR0175 sour service compliance, the ±0.1mm tolerance components serve critical applications: subsea trees, nuclear coolant loops, sulfuric acid reactors, and satellite launch systems.
Prodect Qualification-Customized Process
Make a request
Make the drawings
Engineer's confirmation
Develop molds
Quality control
Laboratory testing
Sample confirmation
Mass production
Packaging
Shipment
Deliver,Shipping And Serving
Packaging depends on the mold, parts and customer requirements.
Proper packaging and professional couriers will ensure fast and good delivery of goods.
Strategic Partners With RXY Machinery
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