ASTM B165 Monel 400 Seamless Pipes, ASTM B366 Monel Buttweld Fittings, ASTM B564 Monel 400 Flanges, ASTM B564 Monel 400 Forgings, ASTM B725 Monel Welded Pipes, ASTM B164 Monel 400 Wire, ASTM B164 Monel 400 Round Bar, ASTM B366 Monel Elbow, Monel Pipes Fittings Supplier in India, Monel Pipe Fittings Manufacturer, Monel Socket Weld Elbow, Monel Threaded Bars, Monel Pipe Nipples, Monel Needle Valves Exporter, Monel Tubes, Monel Tube Fittings, DIN 2.4360/Monel 400/UNS N04400, DIN 2.4375/Monel K500/UNS N05500

“Monel 400 Seamless Pipes, Monel Tubes  Available from 1/2″ NB to  8″ NB Size in SCH 10, SCH 40 THK”

“Your #1 Source for Monel 400 Buttweld Fittings, Monel 400 Flanges from 1/2″ NB upto 8″ NB Sizes, Custom Sizes Available on Request”

ASTM B366 Monel Pipe Fittings - Monel Elbow, Monel Tee, Monel Reducer, Monel End Caps, Monel Cross Manufacturer

ASTM B366 Monel Buttweld Pipe Fittings Manufacturer, Exporter, Supplier – Monel Elbow, Monel Tee, Monel Reducer, Monel End Caps, Monel Cross Manufacturer

An ISO 9001:2015 Certified Company, Metline Industries is a leading manufacturer and exporter of high nickel based special alloy buttweld pipe fittings and forged fittings. Generally seamless monel pipe fittings (UNS N04400) are available in the size range of ½” NB to 8” NB. For sizes above 8”NB, we offer our customers with seam welded 100% radiography tested monel pipe fittings. METLINE offers a complete range of monel pipe fittings such as monel reducer, monel elbow, monel tee, monel cross, monel stub ends and monel pipe bends.

We are one of the most trusted exporter and manufacturer of monel forged fittings in a size range of 1/2″ to 4″ in both socket weld and threaded form. We specialise in the manufacture and supply of monel pipe bends in both standard and non standard sizes, with bending radius of 1D to 10D. Some of our key products include Monel 400 Pipes, Custom Size Monel Tubings, Fabricated Monel 400 Pipes, Custom Fabrications in Monel Alloy 400, Monel Elbows, Monel Flanges, Monel Pipe Nipples, Monel Needle Valves, Monel Capillary Tubes, Coiled Tubing in Monel Alloy 400

Monel pipe fittings are especially suitable for reducing conditions in industries such as marine engineering, chemical processing, hydro-carbon processing, heat exchangers, valves and pumps. METLINE also stocks and supplies a complete range of monel pipes to complement our existing production range of buttweld fittings and flanges. Monel pipes can be supplied in cut to length sizes and also machined or fabricated to meet your piping requirements.

Our monel tube products are regularly exported to Brazil, South Africa, UAE, Bahrain, Italy, Indonesia, Malaysia, United States, Mexico, Chine, Brazil, Peru, Nigeria, Kuwait, Jordan, Dubai, Thailand (Bangkok), Venezuela, Iran, Germany, UK, Canada, Russia, Turkey, Australia, New Zealand, Sri Lanka, Vietnam, South Africa, Kazakhstan and Saudi Arabia, Oman.

We distribute our monel pipes and tubing products across all major cities and industrial areas in India such as Mumbai, Delhi, Bangalore, Hyderabad, Ahmedabad, Chennai, Kolkata, Surat, Pune, Nagpur, Indore, Thane, Bhopal, Visakhapatnam, Vadodra, Nashik, Faridabad, Rajkot, Aurangabad, Ranchi, Coimbatore, Raipur, Mysore, Bhubaneswar, Salem, Bhilai, Bhiwandi, Bikaner, Mangalore, Kochi (Cochin), Bhavnagar, Tirupur, Ankleshwar, Assam, Siliguri, Jamshedpur, Warangal, Nellore, Agartala and Thoothukudi.


ASTM B366 Monel 400 Buttweld Tee Manufacturer, Exporter, Supplier

ASTM B366 Monel 400 Buttweld Tee Manufacturer, Exporter, Supplier

Monel 400 is a copper nickel alloy with high strength and corrosion resistance in a range of acidic and alkaline environments. Monel is based on nickel (65-70%) and copper (20-29%) and also contains iron and manganese (5%) and other compounds.

Product Range in Monel Alloy 400/K500

  1. Monel 400 Pipes, Monel Tube available in seamless and welded form in random lengths and cut to size – ASTM B165, ASTM B163, ASTM B725, ASTM B730
  2. Monel Buttweld Pipe Fittings – ASTM B366, with Dimensions as per ASME B16.9, DIN, EN
  3. Monel Forged Fittings -ASTM B164, with Dimensions as per ANSI B16.11, DIN, EN
  4. Monel 400 Flanges– ASTM B564, with Dimensions as per ANSI B16.5, DIN, EN
  5. Monel Round Bar, Monel Square Bar, Monel Hexagonal Bar – ASTM B164 (round, square and hexagonal in random lengths and cut to size)
  6. ASTM B564 Monel Forgings (Discs, Rings and forgings according to drawing)
  7. ASTM B127 Monel Plate and sheet (Full plates and cut to size)

Monel Flanges Manufacturer/Supplier

Monel Flanges Manufacturer/Supplier

Monel Pipe Fittings Manufacturer/Supplier

Monel Pipe Fittings Manufacturer/Supplier

Monel Pipes Supplier/Stockholder

Monel Pipes Supplier/Stockholder

Key Properties of Alloy 400/Monel Pipe Fittings and Flanges

  • Good mechanical properties
  • Strong resistance to sulfuric and hydrofluoric acids
  • Good resistance to chloride in stress corrosion cracking
  • High resistance to alkaline and acid salts
  • Weak resistance with oxidizing acid salts such as ferric chloride
  • Can be easily welded and soldered

Applications – Monel Pipe Fittings and Flanges

  • Valves
  • Heat Exchangers
  • Oil refineries
  • Chemical process industries
  • Hydro carbon processing

Monel Pipe Fittings Production Range

SpecificationASTM B366, ASME B366, ASTM B564, ASME SB564, ASTM B865, ASME SB865
GradeAlloy 400/Monel 400/UNS N04400/2.4360, Alloy K-500/Monel K-500/UNS N05500/2.4361
TypeSeamless / Welded / Fabricated
Bending RadiusR=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
Range½”NB to 24”NB in Sch 10s, 40s, 80s, 160s, XXS.
DimensionsANSI/ASME B16.9, B16.28, MSS-SP-43.

Buttweld Monel Pipe Fittings

Seamless/ Welded 100% Radiography Tested

Monel 400 Elbows – Long RadiusMonel 400 Stub Ends

Sizes 1/2″ – 24″

Monel 400 Elbows – Short RadiusMonel 400 Crosses
Monel 400 Reducing ElbowsMonel 400 Reducing Crosses
Monel 400 45° ElbowsMonel 400 180° LR Return Bends
Monel 400 TeesMonel 400 180° SR Return Bends
Monel 400 Reducing TeesMonel 400 Pipe Bends / Piggable Bends
Monel 400 ReducersMonel 400 Couplings
Monel 400 Concentric ReducersMonel 400 Nickel Pipe Nipples
Monel 400 Eccentric ReducersMonel 400 Forged/Plate Cut Rings
Monel 400 3D ElbowMonel 400 End Caps
Monel 400 5D ElbowMonel 400 Forged / Plate Circles

High Pressure Forged Monel Pipe Fittings

Threaded and Socket Weld Pipe Fittings

Monel 90° ElbowsMonel Couplings

Sizes 1/8″ – 4″

Pressure Ratings –
2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS

Monel 45° ElbowsMonel Reducers
Monel Street ElbowsMonel Inserts
Monel TeesMonel Caps
Monel CrossesMonel Unions

Monel Flanges

Forged and Plate Flanges

SpecificationASTM / ASME SB 564 / 160 / 472
UNS GradeMonel 400 (UNS No. N04400), Monel K500 (UNS No. N05500).
StandardANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size½” to 36″
DimensionsANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Class / Pressure150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.


Monel Slip-On FlangesMonel Threaded Flanges

1/8″ – 36″

Raised Face or Flat Face

Monel Weld Neck FlangesMonel Socket Weld Flanges
Monel Blind FlangesMonel Reducing Flanges
Monel Lap Joint FlangesMonel Plate Flanges

Marking & Packing

Products are packaged to ensure that there is no damage during transit. In case of exports, standard export packaging is done in wooden cases. All fittings and flanges are marked with Grade, Lot No, Size, Degree and our trade mark. On special requests we can also, make custom marking on our products.

Quality Assurance

At METLINE, all fittings and flanges are subject to strict inspection at each stage of the production process, from starting material purchasing to product dispatch. They are visually examined for conformity to ASTM, ASME, MSS, DIN, EN, and JIS codes and standards. Upon request, official certified Inspection Agencies can be called in to witness the material reports, dimensions and quality conformity of products.

Test Certificates:
Manufacturer Test Certificate as per EN 10204 / 3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report