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Size : ANSI B 16.5 from 1/2" to 24" (complete range) |
Specifications As Per The International Standard ASTM, ASME, API, AISI, BS, ANSI, DIN, JIS, MSSP, NACE
Dimenisons:
Dimensional Tolerances of Weld Neck Flanges ASME B16.5
| Outside Diameter ≤ 24 = 1.6 mm | > 24 = ± 3.2 mm |
Inside Diameter ≤ 10 = ± 0.8 mm | 12 thru 18 = 1.6 mm | ≥ 20 = + 3.2 mm / - 1.6 mm |
| Diameter of Contact Face 1.6 mm Raised Face = ± 0.8 mm 6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm |
Diameter of Hub at Base ≤ 24 = 1.6 mm | > 24 = ± 3.2 mm |
| Diameter of Hub at Point of Welding ≤ 5 = + 2.4 mm / - 0.8 mm | ≥ 6 = + 4.0 mm / - 0.8 mm |
Drilling Bolt Circle = 1.6 mm | Bolt Hole Spacing = ± 0.8 mm Eccentricity of Bolt Circle with Respect to Facing ≤ 2½ = 0.8 mm max. | ≥ 3 = 1.6 mm max |
| Thickness ≤ 18 = + 3.2 mm / - 0 | ≥ 20 = + 4.8 mm / - 0 |
Length thru Hub ≤ 10 = 1.6 mm | ≥ 12 = ± 3.2 mm |
Materials :
Nickel Alloy Weld Neck Flanges :Copper Alloy Weld Neck Flanges :
ASTM / ASME SB 61 / 62 / 151 / 152.
C 70600 (CU -NI- 90/10) - Cupro Nickel Weld Neck Flanges
C 71500 (CU -NI- 70/30) - Copper Nickel Weld Neck Flanges
UNS NO. C 92200, UNS NO. C 83600, UNS NO. UNS NO C 10100,
C 10200, C 10300, C 10800, C 12000, C 12200
Duplex Steel Weld Neck Flanges:
ASTM / ASME A/SA 182 UNS F 44, F 45, F51, F 53, F 55, F 60, F 61.
Stainless Steel Weld Neck Flanges - SS Weld Neck Flanges:
ASTM A182
Grade : F 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347H, 904L.
Alloy Steel Weld Neck Flanges - AS Weld Neck Flanges :
ASTM SA 182 F1/F5/F9/F11/F22/F91
Carbon Steel Weld Neck Flanges - CS Weld Neck Flanges :
ASTMA 105 Gr. F42/46/52/56/60/65/70
Low Temperature Carbon Steel Weld Neck Flanges - LTCS Weld Neck Flanges :
A350 LF2/A350 LF3
Value Added Services :
• Hot Dip Galvanizing
• Electro polish
Test Certificate :
Mill Test Certificate as per EN 10204 / 3.1B
