| Standard Met | Specifications
ASME STANDARDS
• ASME B 16.5: Pipe Flanges and Flanged Fittings
• ASME B 16.36: Orifice flanges
• ASME B 16.47: Large diameter steel flanges
• ASME B 16.48: Line blanks
UNI STANDARDS
• UNI 2223: Flange metalliche per tubazioni
• UNI 6100: Flange metalliche per tubazioni. Tolleranze e contrassegno
• UNI 2280: PN 6 Flange a collarino a saldare di testa
• UNI 2281: PN 10 Flange a collarino a saldare di testa
• UNI 2282. PN 16 Flange a collarino a saldare di testa
• UNI 2283: PN 25 Flange a collarino a saldare di testa
• UNI 2284: PN 40 Flange a collarino a saldare di testa
• UNI 2285: PN 64 Flange a collarino a saldare di testa
• UNI 2286: PN 100 Flange a collarino a saldare di testa
• UNI 6085: PN 160 Flange a collarino a saldare di testa
• UNI 6085: PN 250 Flange a collarino a saldare di testa
• UNI 6091: PN 6 Flange cieche
• UNI 6092: PN 10 Flange cieche
• UNI 6093: PN 16 Flange cieche
• UNI 6094: PN 25 Flange cieche
• UNI 6095: PN 40 Flange cieche
• UNI 6096: PN 64 Flange cieche
• UNI 6097: PN 100 Flange cieche
• UNI 6098: PN 160 Flange cieche
• UNI 6099: PN 250 Flange cieche
• UNI 2229: Superfici di tenuta a gradino
BS STANDARDS
• BS 3293: Specification for carbon steel pipe flanges (over 24 inches nominal size) for the petroleum industry
ASTM STANDARDS
• ASTM A234: Pipe Fittings of Wrough Carbon Steel and alloy steel for Moderate and elevated Temperatures
• ASTM A403: Wrough Austenitic Stainless Steel Pipe Fittings
• ASTM A420: Pipe Fittings of Wrough Carbon Steel and alloy steel for low Temperatures Service
• ASTM A53: Pipe,Steel, Black and Hot Dipped Zinc Coated Welded and Seamless
• ASTM A106: Seamless Carbon Steel for high Temperature Service
• ASTM A105: Forging Carbon Steel for Piping Components
• ASTM A181: Forging Carbon Steel for General Purpose Piping
• ASTM A182: Forged or Rolled Alloy Steel Pipe Falnges, Forged Fittings, and Valves and Parts for high temperature Service
• ASTM A350: Forging Carbon AND Low-Alloy Steel,requiring Notch Toughness Testing for pipiping Components
• ASTM A815: Wrough Ferritic, Ferritic/Austenitic and Martensitic Stainless Steel Pipe Fittings
• ASTM A860: Wrough High Strength, Low Alloy Steel, Butt Welding Fittings
API STANDARD
• API 6A: Specification for Wellhead and Christmas Tree Equipment
IPS STANDARD
• IPS-M-PI-150: Standards for Flanges and Fittings
DIN STANDARD
• DIN 2627: Welding Neck Flanges; Nominal Pressure 400
• DIN 2638: Welding Neck Flanges; Nominal Pressure 160
• DIN 2527: Blind
• DIN 86029: Hubbed slip-on flanges for welding; nominal pressure 10
• DIN 86030: Hubbed slip-on flanges for welding; nominal pressure 16
NORSOK STANDARD
• L-005: Compact Flanged Connections
Materials
• Carbon Steel for Moderate Temperature
ASTM A 105
• High Yeld carboon steel for pipeline and offshore
ASTM A 694 F42, 52, 60, 65
• Carbon steel for low temperature
ASTM 350 LF2, LF6
• Carbon nickel steel for low temperature
ASTM 350 LF3
• Carbon Molybdenum steel
ASTM A 182 F1
• Chromium Molybdenum steel
ASTM A 182 F5, F9, F11, F12, F22
• Austenitic Stainless steel
ASTM A182 F304, 304L, 316, 316L, 321, 347, 348
• Nickel and Nickel Alloys
ASTM B366
• Ferritic Stainless Steel
ASTM A182 F1, 2, 5, 6, 9, 11, 12, 22
• Ferritic/Austenitic Steel
ASTM SA182 F51 (Duplex)
ASTM SA182 F53, 55 (Superduplex)
• Martensitic Steel
ASTM 815 WP410
• Titanium alloy
ASTM B363
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