Engineered High-Pressure Forged Flanges
Precision-turned raised face (RF), flat face (FF), and ring type joint (RTJ) facings manufactured to strict dimensional tolerances.
Industrial Forged Flange Specifications
Starlight Tubes manufactures closed-die forged and ring-rolled flanges designed for high-stress cyclic thermal and mechanical pressure piping networks.
Every flange is CNC-machined with serrated concentric or spiral finishes per ASME B16.5 gasket specifications, ensuring leak-free performance under extreme operating conditions.
Technical Specifications
ASTM / ASME CompliantTechnical Specifications — Forged Industrial Flanges
Pressure ratings, face types (RF/RTJ/FF), and material specifications for forged pipe flanges
| Material | ASTM Specification | Grades | Pressure Class |
|---|---|---|---|
| Carbon Steel | ASTM A105 | A105 Normalized | Class 150# to 2500# |
| Low-Temp Carbon | ASTM A350 | LF2 Class 1 | Class 150# to 2500# |
| Stainless Steel | ASTM A182 | F304/304L, F316/316L, F321, 904L | Class 150# to 2500# |
| Duplex 2205 | ASTM A182 | F51 (UNS S31803) | Class 150# to 2500# |
| Super Duplex 2507 | ASTM A182 | F53 (UNS S32750) | Class 150# to 2500# |
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ASME B16.5 Forged Weld Neck Flanges
High-pressure forged weld neck flanges (WNRF / RTJ) in carbon steel, stainless steel, duplex, and nickel alloys
ASME B16.5 Forged Slip-On Flanges
Cost-effective forged slip-on raised face (SORF) flanges for easy alignment and dual fillet weld fabrication
ASME B16.5 Forged Blind Flanges
Solid forged blanking flanges (BLRF / RTJ) in carbon steel, stainless steel, duplex, and superalloys
Source Certified Forged Flanges Today
Direct mill pricing with complete dimension reports, heat number traceability, and EN 10204 3.1 inspection documentation.
Frequently Asked Questions on ASME B16.5 & B16.47 Forged Flanges
Key engineering, tolerance, and international compliance answers from our metallurgical quality desk.
We manufacture Weld Neck (WN), Slip-On (SO), Blind (BL), Socket Weld (SW), Lap Joint (LJ), Threaded (TH), and Spectacle Blind flanges.
Request Project Quotation for ASME B16.5 & B16.47 Forged Flanges
Submit your required sizes, wall thicknesses, material grades, and total tonnage. Our technical sales engineers respond with complete mill pricing and lead times within 24 hours.