Overview & Core Advantages

Monel Alloys are high-performance nickel-copper alloys (comprising approximately 67% Nickel and 30% Copper). As one of the most versatile corrosion-resistant alloys in industrial use, the Monel series is indispensable in marine engineering, chemical processing, and the oil and gas sectors.

Why Choose Monel Alloys?

  • Superior Corrosion Resistance: Exceptional performance in hydrofluoric acid, fluorine gas, hot concentrated alkali solutions, and seawater.

  • Zero Stress Corrosion Cracking (SCC): Virtually immune to chloride-ion stress corrosion cracking in most environments.

  • Wide Temperature Range: Maintains high mechanical strength from sub-zero temperatures up to $480^circtext{C}$ ($900^circtext{F}$).

  • Excellent Workability: High suitability for machining, welding, and thermoforming.


Monel K500: Ultra-High Strength

By adding Aluminum and Titanium, K500 gains 2-3 times the strength of Monel 400 through precipitation hardening (aging), while retaining the same excellent corrosion resistance.

  • Key Applications: Oil-well drilling tools, pump shafts, impellers, valve stems, doctor blades, and marine fasteners.

  • Non-Magnetic Feature: Excellent for applications requiring low magnetic permeability (e.g., electronic equipment or non-magnetic drill collars).


Product Name

Monel K-500 Plate

Thickness

0.3mm-200mm

Length

2000mm, 2438mm, 3000mm, 5800mm, 6000mm, 12000mm, etc.

Width

40mm-600mm, 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc.

Standard

ASTM, AISI, JIS, GB, DIN, EN, etc.

Surface

BA, 2B, NO.1, NO.4, 4K, HL, 8K, etc.

Certificate

ISO, SGS, BV

Production Technology

Hot Rolling, Cold Rolling


Technical Specifications: Monel 400 vs. R405 vs. K500

This table provides a technical comparison to help you select the precise grade for your application requirements.

1. Chemical Composition (%)

ElementMonel 400 (UNS N04400)Monel R405 (UNS N04405)Monel K500 (UNS N05500)
Nickel (Ni)63.0 min63.0 min63.0 min
Copper (Cu)28.0 - 34.028.0 - 34.027.0 - 33.0
Aluminum (Al)--2.30 - 3.15
Titanium (Ti)--0.35 - 0.85
Iron (Fe)2.5 max2.5 max2.0 max
Sulfur (S)0.024 max0.025 - 0.0600.01 max
CategoryStandard GradeFree-MachiningPrecipitation Hardened

2. Physical & Mechanical Properties

PropertyMonel 400Monel R405Monel K500 (Aged)
Density ($g/cm^3$)8.808.808.44
Melting Range$1300 - 1350^circtext{C}$$1300 - 1350^circtext{C}$$1315 - 1350^circtext{C}$
Tensile Strength (MPa)$ge 480$$ge 480$$ge 960$
Yield Strength (MPa)$ge 170$$ge 170$$ge 690$
Elongation (%)35 - 4530 - 4020
Hardness (HB)135 - 179135 - 179260 - 320


Service Advantage

Full range of products available

It covers seamless pipes, welded pipes, rebar, wire rod, hot-rolled/cold-rolled sheets, galvanized sheets, tinplate, structural steel, etc., meeting the procurement needs of multiple industries.

Full range of products available

It covers seamless pipes, welded pipes, rebar, wire rod, hot-rolled/cold-rolled sheets, galvanized sheets, tinplate, structural steel, etc., meeting the procurement needs of multiple industries.

Exporting countries and regions

Our products are exported to more than 20 countries and regions in Southeast Asia, the Middle East, Africa, and South America, and we have extensive experience in international exports.

Exporting countries and regions

Our products are exported to more than 20 countries and regions in Southeast Asia, the Middle East, Africa, and South America, and we have extensive experience in international exports.

Green and low-carbon manufacturing

Strict quality control, continuous optimization of emission reduction processes, and promotion of the circular economy development in the steel industry.

Green and low-carbon manufacturing

Strict quality control, continuous optimization of emission reduction processes, and promotion of the circular economy development in the steel industry.

Support product customization

Our experienced technical team and professional design department support customized customer needs. Factory visits are welcome.

Support product customization

Our experienced technical team and professional design department support customized customer needs. Factory visits are welcome.

Factory Showcase

Our steel factory showcases a complete manufacturing process, from raw material handling to finished steel products. It demonstrates efficient production, strict quality control, and environmentally sustainable practices. Visitors can watch live production operations, safety protocols, and the precision craftsmanship that ensures every batch of steel meets international standards.

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