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Hastelloy C276 Pipe Fittings

Special Alloy Pipe Fittings

Duplex Steel Pipe Fittings

Super Duplex Pipe Fittings

Inconel Pipe Fittings

Incoloy Pipe Fittings

Copper Nickel Pipe Fittings

Monel Pipe Fittings

Hastelloy Pipe Fittings

Alloy 20 Pipe Fittings

Hastelloy C276 Pipe Fittings Specifications

Material Grades

  • Hastelloy C276
  • ASTM B366
  • UNS N10276
  • Werkstoff No. 2.4819
  • NiMo16Cr15W
  • NW 0276
  • Alloy C276
  • Nickel-Molybdenum-Chromium Alloy

Fittings Types

  • 90 Degree Elbow
  • 45 Degree Elbow
  • 180 Degree Return Bend
  • Equal Tee
  • Reducing Tee
  • Concentric Reducer
  • Eccentric Reducer
  • Stub End
  • Pipe End Cap
  • Cross
  • Wye
  • Adapter
  • Bend

Manufacturing Standards

  • ASME B16.9
  • ASME B16.28
  • MSS-SP-43 Type A
  • MSS-SP-43 Type B
  • JIS B2312
  • JIS B2313
  • DIN
  • EN
  • ISO
  • JIS
  • NPT

Size & Schedule

  • Size: NPS 1/2" – NPS 48"
  • Wall Thickness: SCH 5S – SCH 180S
  • Schedule: 10S – 160S
  • Schedule 10S
  • Schedule 40S
  • Schedule 80S
  • Custom Sizes Available

Connection & Pressure

  • End Bell
  • Flange Connection
  • Clamp End
  • Threaded Connection
  • Weld Connection
  • Butt Weld Connection
  • Pressure Class: 150 – 2500

Mechanical Properties

  • Tensile Strength: 790 MPa Min.
  • Tensile Strength: 115,000 psi
  • Yield Strength: 355 MPa Min.
  • Yield Strength: 52,000 psi
  • Elongation: 40% Min.

Chemical Composition

  • Nickel (Ni): Balance
  • Chromium (Cr): 16.0%
  • Molybdenum (Mo): 16.0%
  • Iron (Fe): 5.0%
  • Tungsten (W): 4.0%
  • Cobalt (Co): 2.5% Max.
  • Manganese (Mn): 1.0% Max.
  • Vanadium (V): 0.35% Max.
  • Silicon (Si): 0.08% Max.
  • Carbon (C): 0.01% Max.
  • Copper (Cu): 0.50% Max.

Physical Properties

  • Density: 8.89 g/cm³
  • Density: 0.321 lb/in³
  • Melting Range: 1323–1371°C
  • Melting Range: 2415–2500°F
  • Specific Heat: 427 J/kg·°C
  • Specific Heat: 0.102 Btu/lb·°F
  • Magnetic Permeability: 1.0002

Temperature Rating

  • Temperature Range: -20°F to 550°F
  • Temperature Range: -29°C to 288°C
  • Class 150 Pressure Rating
  • Class 300 Pressure Rating
  • Class 600 Pressure Rating

Material Characteristics

  • Excellent Corrosion Resistance
  • Resistance to Oxidizing Agents
  • Resistance to Reducing Agents
  • High Resistance to Pitting
  • Suitable for Chemical Processing
  • Suitable for Petrochemical Applications

Hastelloy C276 Pipe Fittings Dimension Chart

NPS O.D. (mm) O.D. (inch) 90° LR Elbow
Center to Face		 90° SR Elbow
Center to Face		 45° Elbow
Center to Face		 180° Return
Center to Center		 180° Return
Back to Face
1/2" 21.3 0.840 1 1/2" – 5/8" 2" 1 7/8"
3/4" 26.7 1.050 1 1/8" – 7/16" 2 1/4" 1 11/16"
1" 33.4 1.315 1 1/2" 1" 7/8" 3" 2 3/16"
1 1/4" 42.2 1.660 1 7/8" 1 1/4" 1" 3 3/4" 2 3/4"
1 1/2" 48.3 1.900 2 1/4" 1 1/2" 1 1/8" 4 1/2" 3 1/4"
2" 60.3 2.375 3" 2" 1 3/8" 6" 4 3/16"
2 1/2" 73.0 2.875 3 3/4" 2 1/2" 1 3/4" 7 1/2" 5 3/16"
3" 88.9 3.500 4 1/2" 3" 2" 9" 6 1/4"
3 1/2" 101.6 4.000 5 1/4" 3 1/2" 2 1/4" 10 1/2" 7 1/4"
4" 114.3 4.500 6" 4" 2 1/2" 12" 8 1/4"
5" 141.3 5.563 7 1/2" 5" 3 1/8" 15" 10 5/16"
6" 168.3 6.625 9" 6" 3 3/4" 18" 12 5/16"
8" 219.1 8.625 12" 8" 5" 24" 16 5/16"

Hastelloy C276 Pipe Fittings Weight Chart

DN Schedule 10S Weight (kg/pc) Schedule 40S Weight (kg/pc) Schedule 80S Weight (kg/pc)
90° Elbow 45° Elbow Equal Tee 90° Elbow 45° Elbow Equal Tee 90° Elbow 45° Elbow Equal Tee
8 0.02 0.01 0.03 0.03 0.02 0.06 0.04 0.03 0.07
10 0.03 0.02 0.05 0.03 0.02 0.03 0.06 0.04 0.09
15 0.06 0.03 0.09 0.08 0.04 0.10 0.10 0.05 0.14
20 0.07 0.03 0.13 0.08 0.04 0.17 0.11 0.05 0.20
25 0.14 0.08 0.28 0.15 0.11 0.29 0.22 0.14 0.38
32 0.23 0.11 0.49 0.26 0.17 0.59 0.40 0.23 0.68
40 0.30 0.17 0.68 0.40 0.23 0.86 0.51 0.29 1.02
50 0.50 0.25 0.85 0.70 0.40 1.28 0.91 0.59 1.59
65 0.85 0.48 1.41 1.40 0.77 2.19 1.81 0.99 3.13
80 1.25 0.63 1.77 2.20 1.08 3.31 2.97 1.50 4.45
90 1.70 0.75 2.67 2.83 1.42 4.08 4.00 2.00 5.44
100 2.10 1.08 3.46 4.47 2.09 5.27 6.18 2.81 7.71
150 5.45 2.72 8.07 10.89 5.44 10.99 16.32 8.16 13.61
200 10.20 5.33 15.65 21.54 10.77 20.91 33.11 16.56 28.12
250 18.15 9.75 26.46 38.56 19.27 35.38 51.71 25.86 49.90
300 25.80 13.62 39.46 59.42 29.71 62.14 79.38 39.69 83.91

Hastelloy C276 Reducer & Unequal Tee Weight Chart

DN Schedule 10S (kg/pc) Schedule 40S (kg/pc) Schedule 80S (kg/pc)
Concentric Reducer Eccentric Reducer Reducing Tee Concentric Reducer Eccentric Reducer Reducing Tee Concentric Reducer Eccentric Reducer Reducing Tee
40 × 25 0.19 0.19 0.60 0.26 0.26 0.76 0.34 0.34 0.90
50 × 25 0.28 0.28 0.73 0.40 0.40 1.10 0.54 0.54 1.37
50 × 40 0.31 0.31 0.76 0.45 0.45 1.15 0.59 0.59 1.43
80 × 50 0.55 0.55 1.56 1.00 1.00 2.91 1.79 1.79 3.91
100 × 50 0.78 0.78 2.94 1.50 1.50 4.48 1.95 1.95 6.55
100 × 80 0.87 0.87 3.04 1.74 1.74 4.64 2.33 2.33 6.79
150 × 80 1.82 1.82 6.86 3.95 3.95 9.68 5.51 5.51 11.57
150 × 100 1.96 1.96 7.10 4.07 4.07 11.94 5.96 5.96 11.97
200 × 100 3.01 3.01 13.46 6.55 6.55 17.98 9.23 9.23 24.18
200 × 150 3.19 3.19 14.08 6.74 6.74 18.82 10.12 10.12 25.31

Chemical Composition

Nickel (Ni)
Balance
Chromium (Cr)
16.00%
Molybdenum (Mo)
16.00%
Iron (Fe)
5.00%
Tungsten (W)
4.00%
Cobalt (Co)
2.50% max
Manganese (Mn)
1.00% max
Vanadium (V)
0.35% max
Silicon (Si)
0.08% max
Carbon (C)
0.01% max
Copper (Cu)
0.50% max
Density: 8.89 g/cm³
Density: 0.321 lb/in³
Melting Range: 1323–1371°C
Melting Range: 2415–2500°F
Specific Heat: 427 J/kg·°C
Magnetic Permeability: 1.0002

Mechanical Performance

790
MPa (115,000 psi)
Tensile Strength
355
MPa (52,000 psi)
Yield Strength
40%
minimum
Elongation
8.89
g/cm³
Density

Hastelloy C276 Pipe Fittings Pressure-Temperature Rating

Temperature °F Temperature °C Class 150
1/4"–1"		 Class 300
1 1/4"–2"		 Class 300
2 1/2"–3"		 Class 300
3"–3 1/2"
-20 to 150 -29 to 66 300 psig 2000 psig 1500 psig 1000 psig
200 93 265 psig 1785 psig 1350 psig 910 psig
250 121 225 psig 1575 psig 1200 psig 825 psig
300 149 185 psig 1360 psig 1050 psig 735 psig
350 177 150 psig 1150 psig 900 psig 650 psig
400 204 – 935 psig 750 psig 560 psig
450 232 – 725 psig 600 psig 475 psig
500 260 – 510 psig 450 psig 385 psig
550 288 – 300 psig 300 psig 300 psig

MANUFACTURING

Forging Process

Each flange follows a rigorous 8-step forging and quality-control process to ensure conformance with ASTM A182 and ASME standards.

1

Material Selection

Prime 304 stainless steel billet sourced and certified.

2

Billet Preparation

Heat to 1100°C – 1250°C for optimal forgeability.

3

Forging

Shape billet into flange geometry under controlled pressure.

4

Heat Treatment

Solution anneal at 1040°C – 1120°C, then quench.

5

Machining & Finishing

CNC machining, drilling, and surface finishing.

6

Testing & Inspection

Tensile, hardness, PMI, visual and impact tests performed.