Monel Round Bar

Stellanox Steel is a reliable manufacturer and exporter of Monel Round Bars engineered for high-performance applications involving extreme corrosion, seawater exposure, and elevated temperatures. Crafted from top-grade nickel-copper alloys like Monel 400 and Monel K500, these solid cylindrical bars offer superior strength, exceptional resistance to acids and salts, and high reliability under mechanical stress.

Monel round bars are available in hot rolled, cold drawn, centerless ground, and polished finishes—ideal for use in marine components, pump shafts, heat exchanger bolts, and structural elements.

What are Monel Round Bars?

Monel Round Bars are solid, corrosion-resistant rods designed for structural and mechanical use in critical fluid systems, marine hardware, and chemical equipment. Known for their outstanding resistance to hydrofluoric acid, alkalis, and saltwater, Monel bars are widely used in industries that demand reliability, machinability, and longevity under stress.

Monel 400 is widely used for general corrosion resistance, while Monel K500 provides added strength through age-hardening for high-load environments.

Products
Stainless Steel
Carbon Steel
Duplex Stainless Steel
Super Duplex Stainless Steel
Alloy Steel
Titanium
Hastelloy
Inconel
Monel
Aluminium
Copper
Pure Nickel
Flanges
Forged Fittings
Valves
Fasteners

Key Features

✅ Superior Resistance to Salts, Acids, Alkalis, and Chlorides

✅ Non-Magnetic and Spark-Resistant

✅ Excellent Mechanical Strength at Elevated Temperatures

✅ Good Machinability, Weldability, and Fabrication Properties

✅ High Fatigue, Stress-Corrosion, and Cavitation Resistance

✅ Available in Multiple Grades and Tolerance Classes

Grades

  • Monel 400 Round Bar
  • Monel K500 Round Bar

Specification

Property Details
Product Monel Round Bar
Grades Available Monel 400, Monel K500
Manufacturing Standards ASTM B164 (400), B865 (K500), ASME SB164/SB865, EN 2.4360 / 2.4375
Diameter Range 6 mm to 300 mm (1/4" to 12")
Length Range Up to 6 meters (custom cut available)
Finishes Hot Rolled, Cold Drawn, Peeled, Centerless Ground, Polished
Tolerances h9, h10, or as per customer specification
Heat Treatment Annealed (400), Aged (K500)
Testing & Certification EN 10204 3.1/3.2, PMI, NACE MR0175, Ultrasonic, Hardness, UT

Chemical Composition

Element Composition (%)
Nickel (Ni) ≥ 63.0
Copper (Cu) 28.0 – 34.0
Iron (Fe) 2.0 – 2.5
Manganese (Mn) ≤ 2.0
Silicon (Si) ≤ 0.50
Carbon (C) ≤ 0.30

Mechanical Properties

Property Value
Tensile Strength ≥ 965 MPa
Yield Strength ≥ 690 MPa
Elongation ≥ 20%
Hardness 200–300 HB
Density ~8.44 g/cm³

Equivalent Grades

Standard Equivalent Grade
ASTM B164, B865
UNS N04400, N05500
DIN / EN 2.4360, 2.4375
ISO NiCu30Fe

Weight

Diameter (mm) Weight per Meter (kg) Weight per 3 m (kg) Weight per 6 m (kg)
6 0.25 0.75 1.50
8 0.44 1.32 2.64
10 0.69 2.07 4.14
12 1.00 3.00 6.00
16 1.77 5.31 10.62
20 2.76 8.28 16.56
25 4.32 12.96 25.92
30 6.22 18.66 37.32
40 10.98 32.94 65.88
50 17.27 51.81 103.62

Applications

✅ Marine Systems: Propeller shafts, fasteners, seawater pump shafts

✅ Oil & Gas: Downhole tools, control valves, compressor shafts

✅ Chemical Processing: Agitator shafts, acid-resistant components, pump rods

✅ Power & Nuclear Plants: Condenser bolts, steam fasteners, structural rods

✅ Aerospace Industry: Exhaust system components, structural support rods

✅ Defense & Military: High-pressure connectors, armor components

Benefits

🌟 Performs in Saltwater, Acids, and Industrial Chemicals

🌟 Withstands Mechanical Load, Fatigue, and Thermal Cycling

🌟 Maintains Strength from Cryogenic to Elevated Temperatures

🌟 Highly Machinable and Customizable for Any Industry

🌟 Long Service Life = Low Maintenance Costs

🌟 Compliant with Global Industrial & Defense Standards

Frequently Asked Questions

Explore our FAQs for insights on materials, customization, and delivery.
What is the difference between Monel 400 and K500 round bars?
Monel 400 is annealed and offers excellent corrosion resistance, while K500 is precipitation-hardened for greater tensile strength and hardness.
Can Monel round bars be machined easily?
Yes. While tougher than stainless steel, Monel bars are machinable with carbide tooling and coolant systems.
Are Monel bars suitable for use in high-pressure seawater pumps?
Absolutely. Monel’s resistance to biofouling and corrosion makes it a top choice for marine pump components.
What tolerance classes are available for Monel round bars?
Standard tolerances include h9 and h10, but custom tolerances can be provided upon request.

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