Dimensions Weld Neck Flanges & Stud Bolts ASME B16.5
NPS 1/2 – O.D. 21.3
| CLass | 150 | 300 | 600 | 900 | 1500 | 2500 |
| DIA A |
30 | 38 | 38 | 38 | 38 | 43 |
| DIA D |
90 | 95 | 95 | 120 | 120 | 135 |
| THK B |
9.6 | 12.7 | 14.3 | 22.3 | 22.3 | 30.2 |
| 11.2 | 14.3 | 20.7 | 28.7 | 28.7 | 36.6 | |
| DIA G |
35.1 | 35.1 | 35.1 | 35.1 | 35.1 | 35.1 |
| DIA K |
60.3 | 66.7 | 66.7 | 82.6 | 82.6 | 88.9 |
| H | 46 | 51 | 52 | 60 | 60 | 73 |
| 47.6 | 52.6 | 58.4 | 66.4 | 66.4 | 79.4 | |
| NO. L |
4 | 4 | 4 | 4 | 4 | 4 |
| DIA L |
15.9 | 15.9 | 15.9 | 22.2 | 22.2 | 22.2 |
| Stud Bolts Diameter x Length | ||||||
| DIA (in) |
1/2 | 1/2 | 1/2 | 3/4 | 3/4 | 3/4 |
| Len mm |
55 | 65 | 75 | 110 | 110 | 120 |
| Other Diameters | |||||||
| NPS | 1/2 | 3/4 | 1 | 1.1/4 | 1.1/2 | 2 | 2.1/2 |
| 3 | 3.1/2 | 4 | 5 | 6 | 8 | 10 | |
| 12 | 14 | 16 | 18 | 20 | 24 | ||
Notes..
- Dimensions are in millimeters unless otherwise indicated.
- The length of the Stud Bolt does not include the height of the chamfers (points).
- ID = Depending on the wall thickness of the pipe, must be specified by the purchaser.
UNS N06022 (Hastelloy C22) Chemical Composition, %
| Grade | C | Mo | Mn | Si | Fe | P | S | Co | Cr | W | V | Ni |
| C22 | 0.010 | 12.5 – 14.5 | 0.50 | 0.08 | 2.00 – 6.00 | 0.02 | 0.02 | 2.5 | 20 – 22.5 | 2.5 – 3.5 | 0.35 | Bal |
UNS N06022 (Hastelloy C22) Mechanical Properties
| Grade | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| C22 | 8.69 g/cm3 | 1399 °C (2550 °F) | Psi – 45000 , MPa – 310 | Psi – 1,00,000 , MPa – 690 | 45 % |
| Type | Alloy C22 WNRTJ Flange |
| Size | 4 Inch (DN100)
THK: Sch80S |
| Standards | ANSI, ASTM,DIN, JIS, BS, ISO, GB, SH, AND HG etc |
| Material | Carbon steel: ASTM/ASME A234 WPB,WPC Alloy steel: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP 911 Stainless steel: ASTM/ASME A403 WP 304-304L-304H-304LN-304N ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H Low-temperature steel: ASTM/ASME A402 WPL 3-WPL 6 High performance: ASTM/ASME A860 WPHY 42-46-52-60-65-70 |
| Surface treatment | Transparent oil, rust-proof black oil or hot galvanized |
| Applications | Petroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etc |
Studs are measured parallel to the axis (L) from
the first to the thread without the chamfers (points)
S = free threads equals 1/3 time bolt dia
Hex bolts are measured from under the head to the top of de bolt
Dimensional Tolerances of Weld Neck Flanges ASME B16.5
Outside Diameter *
Tolerances not listed in ASME B16.5 2013
≤24
1.6 mm (0.06 in)
>24
±3.2 mm (±0.12 in)
Tolerances not listed in ASME B16.5 2013
≤24
1.6 mm (0.06 in)
>24
±3.2 mm (±0.12 in)
Diameter Hub at Base
≤24
1.6 mm (0.06 in)
>24
±3.2 mm (±0.12 in)
≤24
1.6 mm (0.06 in)
>24
±3.2 mm (±0.12 in)
Inside Diameter
≤10
±0.8 mm (±0.03 in)
12 thru 18
1.6 mm (0.06 in)
≥20
+3.2 mm / -1.6 mm
(±0.12 in / -0.06 in)
≤10
±0.8 mm (±0.03 in)
12 thru 18
1.6 mm (0.06 in)
≥20
+3.2 mm / -1.6 mm
(±0.12 in / -0.06 in)
Diameter Hub at Point of Welding
≤5
+2.4 mm / -0.8 mm
(±0.09 in / -0.03 in)
≥6
+4.0 mm / -0.8 mm
(+0.15 in / -0.03 in)
≤5
+2.4 mm / -0.8 mm
(±0.09 in / -0.03 in)
≥6
+4.0 mm / -0.8 mm
(+0.15 in / -0.03 in)
Drilling
Bolt Circle
1.6 mm (0.06 in)
Bolt Hole Spacing
±0.8 mm (±0.03 in)
Bolt Circle
1.6 mm (0.06 in)
Bolt Hole Spacing
±0.8 mm (±0.03 in)
Eccentricity Bolt Circle
≤2.1/2
0.8 mm max (0.03 in max)
≥3
1.6 mm max (0.06 in max)
≤2.1/2
0.8 mm max (0.03 in max)
≥3
1.6 mm max (0.06 in max)
Thickness
≤18
+3.2 mm / -0 (+0.12 in / -0)
≥20
+4.8 mm / -0 (+0.18 in / -0)
≤18
+3.2 mm / -0 (+0.12 in / -0)
≥20
+4.8 mm / -0 (+0.18 in / -0)
Length thru Hub
≤10
1.6 mm (0.06 in)
≥12
±3.2 mm (±0.12 in)
≤10
1.6 mm (0.06 in)
≥12
±3.2 mm (±0.12 in)
Diameter Contact Face
1.6 mm RF (0.06 in)
±0.8 mm (±0.03 in)
6.35 mm RF (0.25 in)
±0.4 mm (±0.01 in)
Tongue and Groove
±0.4 mm (±0.01 in)
Male-Female
±0.4 mm (±0.01 in)
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