Monel Flange

Trusted Monel flange manufacturer in India supplying premium nickel-copper alloy forged flanges for marine and chemical service.

Monel Flange
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Monel Flange

Suntech Forge India is a trusted Monel Flange Manufacturer in India, supplying premium quality nickel-copper alloy forged flanges designed for marine, chemical, and oil and gas applications.

verified_user Excellent Corrosion Resistance
workspace_premium High Strength & Durability
shield_with_heart Withstands Extreme Conditions
military_tech Long Service Life

Monel Flange Specification

- Size

1/2 in to 60 in

- Class

150 to 2500 LBS

- Face Type

FF, RF, RTJ

- Pressure

PN6 to PN64

- Standards

ANSI B16.5, B16.47, MSS SP44

- Method

Free / Die Forging

Product Overview

Monel flanges are widely used in corrosive environments such as seawater and chemical processing industries due to their excellent corrosion resistance and mechanical strength.

Material Grades and Standards

  • ASTM B564 / ASME SB564
  • UNS N04400 (Monel 400)
  • UNS N05500 (Monel K500)
  • WNR 2.4360 / 2.4375
  • ISO 9723 / BS 3075

Manufacturing Standards

  • ANSI B16.5
  • ANSI B16.47 Series A and B
  • API 605
  • MSS SP44
  • AWWA
  • Custom Drawings

Forging Method

  • Open Die Forging
  • Closed Die Forging
  • Drop Forging
  • Impression Die Forging
  • Upset Forging
  • Hot / Cold Forging

Our Capability

  • Forging
  • Machining and Sawing
  • Heat Treatment

Value Added Services

  • Annealing
  • Heat Treatment
  • Hardening
  • Normalizing
  • Quenched and Tempering
  • Age Hardening

Surface Finish

  • Forged Black
  • Proof Machined

Packaging

  • Wooden Case
  • Carton Box
  • Protective Paper

Testing and Quality Assurance

  • Radiography
  • Ultrasonic Testing
  • PMI Testing
  • Liquid Penetrant Testing
  • NDT Testing

Certifications

  • MTC (Material Test Certificate)
  • Third Party Inspection
  • Raw Material Certificate
  • 100% Radiography Test

Benefits of Monel Flanges

  • High Strength
  • Excellent Corrosion Resistance
  • Good Fabricability
  • Long Service Life

Types of Monel Flanges

  • Weld Neck Flanges
  • Slip-On Flanges
  • Socket Weld Flanges
  • Blind Flanges
  • Figure-8 Blank
  • Paddle Blank and Spacer
  • Threaded Flanges

Socket Weld Flange Size Chart

NPS OD (inch) Hole (Dia x No.) Hub Height (inch) Class
1/2 2.375 0.219 x 4 0.875 150
1 3.500 0.219 x 4 1.250 150
2 5.000 0.281 x 4 2.000 150
3 6.500 0.344 x 4 2.500 150
4 7.500 0.344 x 4 3.000 150
6 9.000 0.406 x 4 3.500 150
8 10.500 0.406 x 4 4.000 150

Weight Chart (Weld Neck Flanges)

Size (inch) Sch 40 (lbs) Sch 80 (lbs) Sch 160 (lbs)
1 2.6 3.4 4.9
2 5.3 7.1 10.3
3 9.7 14.5 21.4
4 15.7 22.8 34.5
6 24.2 37.1 57.5
10 53.0 79.8 119.6
12 75.5 113.3 169.9

Pressure Rating Chart

Size Class Pressure (psi)
1/2 in 150 740
1 in 300 1480
2 in 600 2960
3 in 600 2960
4 in 300 1480

Hastelloy vs Monel Flanges

Property Hastelloy Monel
Temperature Resistance Excellent Good (up to ~538 deg C)
Composition Ni-Mo Alloy Ni-Cu Alloy
Corrosion Resistance Strong acids Seawater and alkalis
Cost Higher Lower

Equivalent Standards

Grade UNS WNR
Monel 400 N04400 2.4360
Monel K500 N05500 2.4375

Chemical Composition

Element Monel 400 Monel K500
Nickel >=63% >=63%
Copper 28-34% 28-34%
Iron <=2.5% <=2.5%
Manganese <=2% <=2%
Aluminum - 2.3-3.5%

Mechanical Properties

Property Monel 400 Monel K500
Tensile Strength 485-690 MPa 655-860 MPa
Yield Strength 205-380 MPa 415-585 MPa
Elongation >=40% >=35%
Hardness 85-95 HRB 35-40 HRC

Physical Properties

Property Value
Density 8.80 g/cm3
Melting Point 1300 - 1350 deg C
Thermal Conductivity 45 W/m.K
Expansion 13.4 um/m.deg C

Quality Testing Process

  • Visual Inspection
  • Dimensional Inspection
  • NDT Testing
  • Pressure Testing
  • Hardness and Tensile Testing
  • Chemical Analysis

Slip-On vs Weld Neck Flanges

Property Slip-On Weld Neck
Installation Easy Complex
Strength Moderate High
Leak Resistance Moderate Excellent
Cost Lower Higher

Applications

  • Marine Industry
  • Chemical Processing
  • Oil and Gas
  • Power Plants
  • Offshore

Export Countries

  • Japan
  • South Korea
  • Bangladesh
  • Brazil
  • Chile
  • UAE

Price Information

Monel Flange Price

For latest price and quotation:
sales@suntechforge.com

Ready Stock

  • Slip-On Flanges
  • Blind Flanges
  • Weld Neck Flanges
  • Custom Forged Flanges

Delivery Time

Export to Shipping Time
Sri Lanka 5 Days
Maldives 7 Days
Taiwan 15 Days
Japan 7 Days
Brazil 45-60 Days
Chile 45 Days