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Monel Hex Bars

Monel 400, Monel K-500 • ASTM B164 / B865 • Premier Seawater & Marine Fasteners • Mumbai, India

Monel Hex Bars Manufacturer in India

Monel Hex Bars

Ganpat Metal manufactures and supplies Monel Hex Bars in Monel 400 (UNS N04400) and Monel K-500 (UNS N05500) conforming to ASTM B164, ASTM B865, ASME SB164 and Federal Specification QQ-N-286. Monel nickel-copper solid-solution alloys are the global benchmark for non-ferrous marine and chemical hardware.

Monel 400 offers unmatched resistance to rapidly flowing seawater, marine atmospheric corrosion, hydrofluoric acid, and strong caustic alkalis while retaining outstanding toughness from sub-zero cryogenic levels up to 550°C. Monel K-500 adds precipitation-hardening aluminium and titanium, multiplying yield strength up to 690 MPa while preserving non-magnetic characteristics down to -100°C.

We supply Monel hex bars from 4 mm to 75 mm across flats in cold drawn annealed, stress relieved, and precipitation age-hardened conditions, widely used for naval bolts, marine pump shafts, offshore valve stems, and subsea instrument hardware.

GM Monel Hex Bars

GM handles enquiries for Monel Hex Bars where buyers need to match hexagonal bar dimensions, across flats (AF) tolerances, and material grade to project drawings or purchase specifications. The supplied inventory covers precision cold drawn and hot rolled sizes beginning from 3 mm up to 100 mm across flats, with custom cut-to-length and surface finish options.

Grade selection should be based on the mechanical tensile properties, hardness, corrosion resistance, and chemical composition required by the project application. Buyers should also confirm the applicable standard specification (ASTM / ASME / EN), delivery condition (cold drawn, annealed, or quenched & tempered), inspection requirements, and documentation before finalizing an order.

Monel Hex Bars Specifications

Monel Hex Bars Technical Data & Specifications Matrix

Monel Hex Bars Specifications

ParameterSpecification
Standard SpecificationsASTM B164 / ASME SB164 (400), ASTM B865 / ASME SB865 (K-500), QQ-N-286
Available GradesMonel 400 (UNS N04400), Monel K-500 (UNS N05500)
Size Range (AF)4 mm to 75 mm Across Flats
Length100 mm to 6000 mm (Custom cut lengths available)
Heat TreatmentAnnealed, Stress Relieved, Precipitation Age Hardened (K-500)
Magnetic PermeabilityNon-magnetic (< 1.002) for Monel K-500
Surface FinishCold Drawn Bright, Turned, Smooth Machined, Pickled
Dimensional ToleranceASTM B164 / ASTM B865 h9 / h11
Testing & CertificationTensile, Hardness, PMI, Ultrasonic Testing, Chemical Analysis
DocumentationEN 10204 Type 3.1 / 3.2 Mill Test Certificate

Monel Hex Bars Chemical Composition

Standard chemical composition limits conform to international metallurgical standards.

GradeNiCuFe maxMn maxAlTi
Monel 40063.0 min28.0 – 34.02.502.00——
Monel K-50063.0 min27.0 – 33.02.001.502.30 – 3.150.35 – 0.85

Monel Hex Bars Mechanical Properties

Minimum mechanical property requirements in designated standard delivery condition:

GradeTensile Strength (min)Yield Strength 0.2% (min)Elongation (min)Hardness
Monel 400 (Annealed)485 MPa (70 ksi)170 – 240 MPa (25–35 ksi)35%150 HB max / 75 HRB
Monel 400 (Cold Drawn)585 MPa (85 ksi)380 MPa (55 ksi)15%180 HB max / 88 HRB
Monel K-500 (Age Hardened)965 MPa (140 ksi)690 MPa (100 ksi)20%27 HRC min / 280 HB

Monel Hex Bars Equivalent Grades

Standard / CountryDesignation
Monel 400UNS N04400 • Werkstoff 2.4360 • EN NiCu30Fe • Alloy 400
Monel K-500UNS N05500 • Werkstoff 2.4375 • EN NiCu30Al • Alloy K500 • QQ-N-286

Monel Hex Bars Sizes and Dimensions

Form / TypeSize RangeLength / DimensionsCondition / Standard
Cold Drawn Monel Hex4 mm to 50 mm AF1000 mm to 4000 mmCold Drawn, Annealed or Age Hardened
Hot Rolled Monel Hex20 mm to 75 mm AFUp to 5000 mmHot Rolled & Pickled / Machined
Cut Pieces & PinsAll SizesCut-to-sizePrecision deburred for marine fastener turning

Custom dimensions, special cuts, and tailored surface conditions available on request.

Monel Hex Bars Weight Calculator

Enter hex bar dimensions (across flats & length) and click Calculate to get approximate weight.

Monel Hex Bars Inspection and Testing

  • Chemical composition verification by Optical Emission Spectrometry (PMI / OES)
  • Tensile strength, yield strength (0.2% offset) and elongation testing
  • Hardness testing (Brinell HB / Rockwell HRC / HRB as per standard)
  • Dimensional inspection across flats (A/F), corner radii, and corner-to-corner accuracy
  • Visual and surface inspection for surface imperfections, seam or lap defects
  • Straightness check per meter and overall bar length verification
  • Ultrasonic Testing (UT) / Eddy Current testing as per ASTM A388 / EN 10228
  • Intergranular corrosion test (IGC per ASTM A262 Practice E/A) where applicable
  • Macro-etching and microstructure grain size assessment
  • Positive Material Identification (PMI) with portable XRF analyzer
  • Third-Party Inspection (TPI) by agencies such as Bureau Veritas, DNV, SGS, TUV
  • Complete Mill Test Certificate EN 10204 Type 3.1 / 3.2 documentation

Monel Hex Bars Applications

  • High-strength fastener manufacturing (hex bolts, cap screws, studs, nuts)
  • Precision CNC turned components and valve spindle manufacturing
  • Petrochemical refineries, process piping systems and cracker plants
  • Offshore oil & gas drilling rigs, subsea manifolds and wellhead valves
  • Chemical processing reactors, agitators, pump shafts and mixer impellers
  • Power generation facilities, boiler headers, steam manifolds and turbine bolts
  • Marine propeller shafts, seawater intake screens and naval fasteners
  • Pharmaceutical sterile equipment, food processing machinery and sanitary fittings
  • Fertilizer manufacturing plants, ammonia synthesis and urea reactors
  • Pulp and paper processing digesters and chlorine bleach plant components
  • Aerospace engine brackets, high-tensile fasteners and actuator rods
  • Automotive fuel injection rails, high-pressure fittings and steering linkages

Monel Hex Bars Manufacturer and Supplier in India

Ganpat Metal manufactures and supplies certified Monel Hex Bars for industrial buyers across India. All materials are sourced from premium quality mills, fully tested for chemistry, mechanical properties, and dimensional tolerances, and supplied with complete traceable Mill Test Certificates.

Whether you require standard stock dimensions or customized sizes, Ganpat Metal maintains deep inventories in Mumbai and provides rapid dispatch, custom cut-to-length services, and third-party inspection support.

Monel Hex Bars Exporter from India

India India UAE UAE Saudi Arabia Saudi Arabia Oman Oman Australia Australia Malaysia Malaysia Singapore Singapore Bangladesh Bangladesh Egypt Egypt Brazil Brazil Russia Russia Kazakhstan Kazakhstan

Why Choose Ganpat Metal for Monel Hex Bars?

  • ASTM / ASME certified prime materials with full trace MTC (EN 10204 3.1 / 3.2)
  • Complete size range from 3 mm up to 100 mm across flats in stock
  • Multiple delivery conditions: cold drawn, solution annealed, normalized & tempered
  • Mirror-bright, cold-drawn peeled, or pickled clean surface finishes
  • Tight dimensional tolerances conforming to ASTM A484 / EN 10278 h11 / h9
  • In-house high-precision band saw cutting to exact client-specified cut lengths
  • Stringent quality control with PMI testing before dispatch
  • Rapid dispatch from Mumbai warehouses for urgent turnaround projects
  • Third-party inspection support (TUV, DNV, Lloyds, Bureau Veritas, SGS)
  • Export-worthy seaworthy wooden crate packaging with end cap protection
  • ISO 9001:2015 certified company with 35+ years of trusted engineering supply

Specify Your Monel Hex Bars Requirement

RequirementDetails to Provide
GradeMonel 400 (UNS N04400) / Monel K-500 (UNS N05500)
StandardASTM B164 / ASTM B865 / QQ-N-286
Size Across Flats (AF)Required AF in mm or inches
LengthStandard 3m or exact cut lengths in mm
ConditionAnnealed (400) / Age Hardened (K-500)
QuantityRequired quantity in kg or pieces
Magnetic PermeabilityPermeability check certification if required for K-500
DocumentationEN 10204 Type 3.1 / 3.2 MTC with full melt analysis