Monel Products Supplier, Manufacturer & Exporter in India

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  • Precision-engineered Monel 400 & K500 pipes, tubes, sheets, bars, fittings and flanges — certified to ASTM/ASME, ready in stock, and shipped worldwide.
  • ISO 9001:2015 Certified • 25+ Years in Alloy Supply • PED / NORSOK Compliant • Third-Party Inspection Welcome

Monel is a high-performance nickel-copper alloy prized for its outstanding resistance to corrosion, seawater, and harsh chemical environments where ordinary stainless steel simply fails. At Kalpaturu Piping, we manufacture, stock, and export a complete range of Monel products engineered for the industries that demand absolute reliability — marine, offshore oil & gas, chemical processing, desalination, and aerospace. Our portfolio spans Monel 400 (UNS N04400) and the age-hardenable Monel K500 (UNS N05500) across pipes, tubes, sheets, plates, round bars, forged and buttweld fittings, flanges, and fasteners. Every batch is produced to ASTM, ASME, and international standards, backed by EN 10204 3.1 material test certificates and full traceability. As a trusted Monel products supplier in India, we combine deep metallurgical expertise with a large ready inventory, competitive pricing, and on-time global delivery. Whether you need a single custom-cut length or a bulk project consignment, our technical team helps you select the right grade, size, and finish — and delivers it with certification you can rely on. Request your Monel price list today.

Monel Products We Supply

Monel Products Specifications 

Standard

Grade

Form

Size Range

Schedule / Thickness

End / Finish

ASTM B127 / SB127

400, K500

Sheets & Plates

0.5–50 mm thick

Custom

Hot/Cold Rolled, Polished

ASTM B164 / SB164

400, K500

Rods, Bars & Wire

Dia 3–200 mm

Bright, Black, Annealed

ASTM B165 / SB165

400, K500

Pipes & Tubes

1/2″–12″ NB

SCH 5S–XXS

Plain / Bevelled / Threaded

ASTM B366 / SB366

400, K500

Buttweld Fittings

1/2″–24″

SCH 5S–XXS

Bevelled / Plain End

ASTM B163 / SB163

400

Heat-Exchanger Tubes

OD 6–114 mm

0.7–12 mm

Bright Annealed, Pickled

ASTM B564 / SB564

400, K500

Flanges

1/2″–48″

Class 150–2500

Forged, Machined

ASTM F467 / F468

400, K500

Fasteners

M3–M64

Plain / PTFE Coated

Monel Products Chemical Composition (%)

Element

Monel 400 (N04400)

Monel K500 (N05500)

Nickel (Ni)

63.0 min

63.0 min

Copper (Cu)

28.0 – 34.0

27.0 – 33.0

Iron (Fe)

2.5 max

2.0 max

Manganese (Mn)

2.0 max

1.5 max

Carbon (C)

0.30 max

0.25 max

Silicon (Si)

0.5 max

0.5 max

Sulphur (S)

0.024 max

0.010 max

Aluminium (Al)

2.30 – 3.15

Titanium (Ti)

0.35 – 0.85

Monel Products Mechanical Properties

Property

Monel 400

Monel K500 (Aged)

Tensile Strength

≥ 480 MPa (70 ksi)

≥ 965 MPa (140 ksi)

Yield Strength (0.2%)

≥ 170 MPa (25 ksi)

≥ 655 MPa (95 ksi)

Elongation

≥ 35 %

≥ 20 %

Hardness

110 – 150 HB

250 – 315 HB

Density

8.80 g/cm³

8.44 g/cm³

Monel Products Physical Properties

Property

Value (Monel 400)

Density

8.80 g/cm³

Melting Range

1300 – 1350 °C

Electrical Resistivity

547 nΩ·m

Thermal Conductivity

21.8 W/m·K

Modulus of Elasticity

179 GPa

Magnetic Permeability

Non-magnetic to slightly magnetic

Monel Products Equivalent Grade Standards

Standard

Monel 400

Monel K500

UNS

N04400

N05500

Werkstoff (WNR)

2.4360 / 2.4361

2.4375

British (BS)

NA 13

NA 18

AFNOR

NU-30M

NU-30AT

EN

NiCu30Fe

NiCu30Al

Product Form

Condition

Tensile Strength (ksi)

Yield Strength (ksi)

Elongation (%)

Brinell Hardness (HB)

Rockwell Hardness

Tensile Strength (MPa)

Yield Strength (MPa)

Rod & Bar

Annealed

75–90

25–50

35–60

110–149

60–80 HRB

517–620

172–345

Rod & Bar

Hot-Finished*

80–110

40–100

30–60

140–241

75–100 HRB

552–758

276–690

Rod & Bar

Hot-Finished Hexagons (>2⅛ in.) & Angles

75–100

30–55

30–50

130–184

72–90 HRB

517–690

207–379

Rod & Bar

Cold-Drawn, Stress-Relieved

84–120

55–100

22–40

160–225

85–100 HRB

579–827

379–690

Plate

Hot Rolled

75–95

40–75

30–45

125–215

70–96 HRB

517–655

276–517

Plate

Hot Rolled, Annealed

70–85

28–50

35–50

110–140

60–76 HRB

482–586

193–345

Sheet

Annealed

70–85

30–45

35–45

65–80 HRB

482–586

207–310

Sheet

Cold Rolled, Hard

100–120

90–110

2–15

≥93 HRB

690–827

621–758

Cold Rolled Strip

Annealed

70–85

25–45

35–55

≤68 HRB

482–586

172–310

Cold Rolled Strip

Spring Temper

100–140

90–130

2–15

≥98 HRB

690–965

621–896

Seamless Pipe & Tube

Cold Drawn, Annealed

70–85

25–45

35–50

≤75 HRB

482–586

172–310

Seamless Pipe & Tube

Cold Drawn, Stress-Relieved

100–120

55–100

15–35

85–100 HRB

690–827

379–690

Cold Drawn Wire

Annealed

70–95

30–55

25–45

482–655

207–379

Grades of Monel

Standard Grade Form Size Range Schedule / Thickness End / Finish
ASTM B127 / SB127 400, K500 Sheets & Plates 0.5–50 mm thick Custom Hot/Cold Rolled, Polished
ASTM B164 / SB164 400, K500 Rods, Bars & Wire Dia 3–200 mm Bright, Black, Annealed
ASTM B165 / SB165 400, K500 Pipes & Tubes 1/2″–12″ NB SCH 5S–XXS Plain / Bevelled / Threaded
ASTM B366 / SB366 400, K500 Buttweld Fittings 1/2″–24″ SCH 5S–XXS Bevelled / Plain End
ASTM B163 / SB163 400 Heat-Exchanger Tubes OD 6–114 mm 0.7–12 mm Bright Annealed, Pickled
ASTM B564 / SB564 400, K500 Flanges 1/2″–48″ Class 150–2500 Forged, Machined
ASTM F467 / F468 400, K500 Fasteners M3–M64 Plain / PTFE Coated

Monel vs Stainless Steel

For chloride-rich and seawater environments, Monel outperforms 316/316L stainless steel by resisting pitting and stress-corrosion cracking that commonly attack stainless. While stainless steel is more economical for general service, Monel is the specified choice where failure is not an option — making it the preferred material for marine, offshore, and acid-handling applications.

Monel 400 vs Monel K500 (Quick Comparison)

Factor Monel 400 Monel K500
Strengthening Solid-solution Age-hardenable
Tensile Strength Moderate (~480 MPa) High (~965 MPa)
Corrosion Resistance Excellent Excellent
Best For General corrosion service High-strength + corrosion
Cost Lower Higher
Typical Use Valves, tubing, vessels Shafts, springs, fasteners

Applications & Industries Served

  • Marine & Shipbuilding — pump shafts, seawater valves, propeller shafts, and heat exchangers.
  • Oil & Gas — offshore drilling risers, wellhead components, and refinery piping.
  • Chemical Processing — reactors, vessels, and piping for hydrofluoric and sulphuric acid service.
  • Desalination — brine heaters and evaporator tubing for freshwater plants.
  • Aerospace — springs, fasteners, and structural components for airframes.
  • Power Generation — feedwater heaters and steam generator components.

Certifications & Approvals

ISO 9001:2015 PED 2014/68/EU NORSOK NACE MR0175 BV SGS Lloyd’s TÜV DNV DNV

FAQ’s About Monel

What is Monel used for?

Monel is widely used in marine engineering, chemical processing, oil & gas, aerospace, power generation, and heat exchanger applications due to its excellent resistance to seawater, acids, alkalis, and high-temperature corrosion. It is commonly manufactured into pipes, tubes, fittings, flanges, fasteners, plates, bars, and valves for demanding industrial environments.

Who is the manufacturer of Monel in India?

Several manufacturers and suppliers in India produce and supply Monel products in grades such as Monel 400 and Monel K500. These products are available in various forms, including pipes, tubes, fittings, flanges, fasteners, plates, sheets, bars, and rods, and are supplied in accordance with international ASTM, ASME, and UNS specifications for domestic and export markets.

What type of material is Monel?

Monel is a high-performance nickel-copper alloy primarily composed of nickel and copper, with small amounts of iron, manganese, silicon, and other elements. It is known for its outstanding corrosion resistance, high strength, excellent toughness, and good mechanical properties, making it suitable for harsh marine, chemical, and industrial applications.

Which Monel grade is better — 400 or K500?

Neither is universally ‘better’; they suit different needs. Monel 400 is ideal for general corrosion-resistant service and easy weldability. Monel K500 offers the same corrosion resistance plus much higher strength and hardness through age-hardening, making it the choice for shafts, springs, and fasteners under load.

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