Monel Flanges


Alloy 400 blind flange

Monel 400 weld neck flange

Monel slip on flange
View common Monel alloy flange specification
We are a IBR certified Monel flanges manufacturer. designed to meet oil & gas applications. Our Monel 400 flange are available in a wide range of sizes (1/2″ to 24″) and pressure class (150 to 2500) for marine environments as per ASME B16.5.
Table of Content
- Monel flanges specifications
- Most popular types of Monel alloy flange
- Monel 400 flange pressure ratings
- Tensile properties of Nickel alloy 400 weld flanges
- Monel 400 alloy forged steel flanges temperature range
- Nickel 400 pipe flange chemical composition
- Brinell hardness of Monel alloy 400 hot forged flange
- Thermal properties of Monel forged flange
- Equivalent of Alloy 400 flanges
- Monel forgings flanges mechanical properties
- Monel 400 forgings corrosion rate in Hydrochloric Acid
Check the available types of Nickel 400 pipe flange and pressure rating of Alloy 400 blind flange Class 150 to 2500
You can save 5%-8% cost when ordering directly from Monel flanges manufacturer in ferrous materials. Choose your Monel 400 blind flange sizes available in RTJ/ RF/ FF face type.
Most popular types of Monel alloy flange

Monel socket weld flange

Monel alloy lap joint flange

Nickel 400 plate flanges

Alloy 400 long neck flanges

400 Monel threaded flange

Nickel alloy 400 orifice flange

Monel 400 alloy spectacle blind flanges

Nickel 400 Alloy reducing flange
Monel 400 flange pressure ratings
| Temperature In °C | CL 150 | CL 300 | CL 600 | Temp. In °F | CL 150 | CL 300 | CL 600 |
|---|---|---|---|---|---|---|---|
| -29~38 | 15.9 | 41.4 | 82.7 | -20~100 | 230 | 600 | 1200 |
| 50 | 15.4 | 40.2 | 80.5 | 200 | 200 | 525 | 1050 |
| 100 | 13.8 | 35.9 | 71.9 | 300 | 190 | 490 | 980 |
| 150 | 12.9 | 33.7 | 67.5 | 400 | 180 | 475 | 945 |
| 200 | 12.5 | 32.7 | 65.4 | 500 | 170 | 475 | 945 |
| 250 | 12.1 | 32.6 | 65.2 | 600 | 140 | 475 | 945 |
| 300 | 10.2 | 32.6 | 65.2 | 650 | 125 | 475 | 945 |
| 350 | 8.4 | 32.6 | 65.1 | 750 | 95 | 465 | 930 |
| 400 | 6.5 | 32.1 | 64.2 | 800 | 80 | 460 | 915 |
| 450 | 4.6 | 26.9 | 53.8 | 850 | 65 | 375 | 755 |
| Temp. In °C | 900# | 1500# | 2500# | Temperature In °F | 900# | 1500# | 2500# |
|---|---|---|---|---|---|---|---|
| -29~38 | 124.1 | 206.8 | 344.7 | -20~100 | 1800 | 3000 | 5000 |
| 50 | 120.7 | 201.2 | 335.3 | 200 | 1575 | 2630 | 4380 |
| 100 | 107.8 | 179.7 | 299.5 | 300 | 1470 | 2450 | 4080 |
| 150 | 101.2 | 168.7 | 281.1 | 400 | 1420 | 2365 | 3940 |
| 200 | 98.1 | 163.5 | 272.4 | 500 | 1420 | 2365 | 3940 |
| 250 | 97.8 | 163.0 | 271.7 | 600 | 1420 | 2365 | 3940 |
| 300 | 97.8 | 163.0 | 271.7 | 650 | 1420 | 2365 | 3940 |
| 350 | 97.7 | 162.8 | 271.3 | 750 | 1395 | 2330 | 3880 |
| 400 | 96.2 | 160.4 | 267.4 | 800 | 1375 | 2290 | 3820 |
| 450 | 80.7 | 134.5 | 224.2 | 850 | 1130 | 1885 | 3145 |
Mumbai-based 400 Monel weld neck flange supplier offers a variety of sizes and view Nickel alloy 400 weld flanges high-temperature tensile properties
Monel flanges manufacturer in India can provide weld neck flange as per the custom sizes as per requirment of clients. Monel weld flanges is a nickel copper alloy that offers excellent resistance to corrosion.
Tensile properties of Nickel alloy 400 weld flanges
| Heat Treatment | Temp. In °F | Tensile Strength, KSI |
|---|---|---|
| Annealed | 70 | 78.65 |
| -297 | 115.25 | |
| Forged | 70 | 92.00 |
| -297 | 128.25 | |
| -423 | 142.00 |
Manufacturing Standards and Origin
| USA | Korea | Malaysia | Australia | Canada | Europe |
|---|---|---|---|---|---|
| ASME, ASTM, MSS SP44, AWWA, API-605 | KS | MS 816, MS 253 | AS 2129 | CSA B16.5/ B16.47 | EN |
| Italy | Europe | Europe | USA | Australia and UK | – |
| UNI 2276/ 6091 | BS EN 1092-1 (Steel) | BS EN 1092-3 (Alloy) | ANSI | BS 10 | – |
| Russia | Japan | Europe | France | Germany | China |
| Ghost | JIS | ISO 7005, BS EN 1092-2 (Iron), PN | NF E 29-200/ NF E 29-203 | DIN | GB/T 9112 / 9119 |
If you’re looking for a Monel metal alloy slip on flange manufacturer in India, be sure to check out the Monel 400 alloy forged flanges temperature range
Monel 400 alloy forged steel flanges temperature range
- Up to 1000° F
Find the chemical composition of Alloy 400 nickel forgings, and Brinell hardness of Monel alloy 400 hot forged flange as per ASME B16.5.
Nickel 400 pipe flange chemical composition
| Element | Monel 400 flanges | Monel K500 flanges |
|---|---|---|
| C | 0.30 (max.) | 0.25 (max.) |
| Mn | 2.00 (max.) | 1.5 (max.) |
| Si | 0.50 (max.) | 0.5 (max.) |
| Cu | 28.00 – 34.00 | 27.00 – 33.00 |
| Fe | 2.50 (max.) | 0.5 – 2 |
| Ni | 63.00 (min.) | 63.00 (min.) |
| S | 0.024 (max.) | 0.010 (max.) |
Brinell hardness of Monel alloy 400 hot forged flange
- Brinell Hardness = 125-215
Thermal properties of Monel forged flange
| Temp°F | Thermal Conductivity | Specific Heat |
|---|---|---|
| -300 | 16.5 W/m•°C | 223 J/kg•°C |
| -200 | 18.2 W/m•°C | 320 J/kg•°C |
| -100 | 19.8 W/m•°C | 378 J/kg•°C |
| 70 | 22.0 W/m•°C | 427 J/kg•°C |
Equivalent of Alloy 400 flanges
| Standard | Monel 400 flanges | Alloy K500 flanges |
|---|---|---|
| UNS | N04400 | N05500 |
| WERKSTOFF NR. | 2.4360 | 2.4375 |
| JIS | NW 4400 | – |
| BS | NA 13 | – |
| GOST | МНЖМц 28-2,5-1,5 | – |
| AFNOR | NU-30M | – |
| EN | NiCu30Fe | – |
Monel forgings flanges mechanical properties
| Element | Alloy 400 Flanges | Nickel K500 Flanges |
|---|---|---|
| Elongation | 40% | 20% |
| Tensile Strength | MPa – 550, PSI – 80,000 | MPa – 1100, PSI – 160000 |
| Yield Strength (0.2%Offset) | MPa – 240, PSI – 35,000 | MPa – 790, PSI – 115000 |
| Density | 8.8 g/cm3 | 8.44 g/cm3 |
| Melting Point | 2460 °F (1350 °C) | 2460 °F (1350 °C) |
Monel 400 forgings corrosion rate in Hydrochloric Acid
| Weight % | Temperature in °C and °F | Time (days) | Corrosion rate | ||
|---|---|---|---|---|---|
| °F | °C | Mpy | Mm/y | ||
| 48% | 1020°F | 550°C | 35 | 48 Mpy | 1.2 Mm/y |
| 50% | 100 °F to 200 °F | 40°C to 95°C | 35 | 18 Mpy | 0.46 Mm/y |
| 65% | 100 °F to 200 °F | 40°C to 95°C | 35 | 4.8 Mpy | 0.13 Mm/y |
| 70% | 100 °F to 200 °F | 40°C to 95°C | 35 | 5.4 Mpy | 0.14 Mm/y |
Top 8 Reasons to Choose Ramesh Group for High Pressure Applications

- ADNOC approved manufacturer and supplier of seamless fittings and forged steel flanges
- Supply industrial steel piping products in Europe as per CBAM requirements
- Exporter of high performance weld fittings suitable for corrosion resistant environment
- Distributor of butt welding fittings for Marine application as per MTC EN 10204 3.1/ 3.2
- All pipe flange comes with NACE MR0175 and pressure class 150 to 2500 as per ASME B16.5.
- Over 250 Fabricators and traders in Middle East and European countries import prime quality BLRF, SORF and WNRF flanges because our material is accepted in Abu Dhabi National Oil Company
- Supplying SMLS elbow, tee, reducer and end cap to Stockist and wholesaler of piping materials in Saudi Arabia at Resale price as per ASME B16.9.
- Keep custom sizes Ex stock of standard sizes with stockholders in USA and Mexico for urgent requirements in replacement situations






















