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Monel 400 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

Monel 400 Pipe Fittings Specifications

Material Grades

  • Monel 400
  • UNS N04400
  • Werkstoff No. 2.4360
  • NiCu30Fe
  • NW 4400
  • NA 13
  • NU-30M
  • Nickel-Copper Alloy 400

Fittings Types

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

Manufacturing Standards

  • ASTM B366
  • ANSI B16.9
  • ANSI B16.28
  • MSS-SP-43 Type A
  • MSS-SP-43 Type B
  • JIS B2312
  • JIS B2313
  • JIS
  • NPT
  • ISO
  • DIN
  • EN

Size & Schedule

  • Size: NPS 1/2" – NPS 48"
  • Schedule 20S – XXS
  • Schedule 10S
  • Schedule 40S
  • Schedule 80S
  • Standard Sizes
  • Custom Sizes Available

Connection & Pressure

  • Clamp End
  • End Bell
  • Threaded Connection
  • Weld Connection
  • Butt Weld Connection
  • Pressure Rating: 150# – 2500#

Mechanical Properties

  • Tensile Strength: 550 MPa Min.
  • Tensile Strength: 80 ksi Min.
  • Yield Strength: 240 MPa Min.
  • Yield Strength: 35 ksi Min.
  • Elongation: 40% Min.
  • Hardness: 110–150 HB

Chemical Composition

  • Nickel (Ni): 63.0% Min.
  • Copper (Cu): 28.0–34.0%
  • Iron (Fe): 2.50% Max.
  • Manganese (Mn): 2.00% Max.
  • Silicon (Si): 0.50% Max.
  • Carbon (C): 0.30% Max.
  • Sulfur (S): 0.024% Max.

Physical Properties

  • Density: 8.80 g/cm³
  • Density: 0.318 lb/in³
  • Melting Range: 2370–2460°F
  • Melting Range: 1300–1350°C
  • Curie Temperature: 70–120°F
  • Curie Temperature: 21–49°C
  • Electrical Resistivity: 547 µΩ·m

Temperature Range

  • Service Range: Sub-Zero to 538°C
  • Pressure-Temperature Rating Available
  • Excellent High-Temperature Performance
  • Suitable for Corrosive Environments

Material Characteristics

  • High Strength
  • Good Ductility
  • Good Thermal Conductivity
  • Excellent Corrosion Resistance
  • Resistance to Acids and Alkalis
  • Cold-Work Hardenable

Monel 400 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"
10" 273.1 10.750 15" 10" 6 1/4" 30" 20 3/8"
12" 323.9 12.750 18" 12" 7 1/2" 36" 24 3/8"

Monel 400 Pipe End Cap, Tee, Cross & Stub End Dimensions

NPS O.D. (mm) End Cap Length Straight Tee
Center to End		 Straight Cross
Center to End		 Stub End
Lap Diameter		 Stub End
Long Length		 Stub End
Short Length
1/2" 21.3 0.840" 1" 1" 1 3/8" 3" 2"
3/4" 26.7 1.050" 1 1/8" – 1 11/16" 3" 2"
1" 33.4 1.315" 1 1/2" 1 1/2" 2" 4" 2"
1 1/4" 42.2 1.660" 1 7/8" 1 7/8" 2 1/2" 4" 2"
1 1/2" 48.3 1.900" 2 1/4" 2 1/4" 2 7/8" 4" 2"
2" 60.3 2.375" 2 1/2" 2 1/2" 3 5/8" 6" 2 1/2"
2 1/2" 73.0 2.875" 3" 3" 4 1/8" 6" 2 1/2"
3" 88.9 3.500" 3 3/8" 3 3/8" 5" 6" 2 1/2"
4" 114.3 4.500" 4 1/8" 4 1/8" 6 3/16" 6" 3"
6" 168.3 6.625" 5 5/8" 5 5/8" 8 1/2" 8" 3 1/2"
8" 219.1 8.625" 7" 7" 10 5/8" 8" 4"
10" 273.1 10.750" 8 1/2" 8 1/2" 12 3/4" 10" 5"
12" 323.9 12.750" 10" 10" 15" 10" 6"

Monel 400 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

Monel 400 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)
63.0% min
Copper (Cu)
28.0–34.0%
Iron (Fe)
2.50% max
Manganese (Mn)
2.00% max
Silicon (Si)
0.50% max
Carbon (C)
0.30% max
Sulfur (S)
0.024% max
Density: 8.80 g/cm³
Density: 0.318 lb/in³
Melting Range: 1300–1350°C
Melting Range: 2370–2460°F
Curie Temperature: 21–49°C
Electrical Resistivity: 547 µΩ·m

Mechanical Performance

550
MPa (80 ksi)
Tensile Strength
240
MPa (35 ksi)
Yield Strength
40%
minimum
Elongation
110–150
HB
Hardness

Monel 400 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"
-20 to 150 -29 to 66 300 psig 2000 psig 1500 psig
200 93 265 psig 1785 psig 1350 psig
250 121 225 psig 1575 psig 1200 psig
300 149 185 psig 1360 psig 1050 psig
350 177 150 psig 1150 psig 900 psig
400 204 - 935 psig 750 psig
450 232 - 725 psig 600 psig
500 260 - 510 psig 450 psig
550 288 - 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.