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| Customization: | Available |
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| Type: | Stainless Steel Bars |
| Standard: | ASTM, JIS |
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Durable Monel 400 Round Steel - Excellent Resistance to Acids & Saline Environments, Customizable Sizes, ASTM B165 Compliant
Products Specification
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Standard
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AISI, ASTM, BS, DIN, GB, JIS
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Grade
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Monel series: 400 K500 Inconel series: 600 601 625 718 725 Incoloy series: 800 800H 825 925 Hastelloy series: B,B2,B3,C,C-276,C-4,C-22 Pure: Ni200, Ni201 |
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Specifications
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Round bar
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Diameter:4~300mm
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Flat bar
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Thickness
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1.0~100mm
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Width
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1~1500mm
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Square bar
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Size: 4*4-100*100mm
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Length
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2m, 5.8m, 6m, or as required.
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Surface
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Black, peeled, polishing, bright, sand blast, hair line, etc.
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Price Term
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Ex-work, FOB, CFR, CIF, etc.
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Delivery Time
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Standard size is in stock,prompt delivery or as order's quantity.
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Package
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Export standard package, bundled or be required. The inner size of container is below: 20ft GP: 5.9m(length) x 2.13m(width) x 2.18m(high)about 24-26CBM 40ft GP: 11.8m(length) x 2.13m(width) x 2.18m(high) about 54CBM 40ft HG: 11.8m(length) x 2.13m(width) x 2.72m(high) about 68CBM |
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Our durable Monel 400 round steel represents the pinnacle of corrosion-resistant nickel-copper alloy technology, specifically engineered to withstand the most aggressive acidic and saline environments. Manufactured in compliance with ASTM B164 standards, this premium round bar offers unparalleled performance where other materials fail. Monel 400 (UNS N04400) maintains its structural integrity in conditions that would rapidly degrade conventional stainless steels, making it the material of choice for critical applications across marine, chemical processing, oil and gas, and aerospace industries.
Superior Corrosion Resistance
Monel 400 round steel demonstrates extraordinary resistance to corrosive attack in both oxidizing and reducing environments. The alloy exhibits exceptional performance in , sulfuric acid, phosphoric acid, and alkaline solutions, with corrosion rates significantly lower than standard stainless steels. In saline environments, including full immersion in seawater, Monel 400 maintains a corrosion rate of less than 1 mil per year (0.025 mm/year), ensuring long-term reliability in marine applications.
Enhanced Mechanical Strength
This nickel-copper alloy provides excellent mechanical properties across a wide temperature range. With typical tensile strength of 70-85 ksi (480-585 MPa) and yield strength of 25-45 ksi (170-310 MPa) depending on temper condition, Monel 400 offers superior structural capability. The material maintains its strength and toughness at sub-zero temperatures down to -200°F (-129°C) and elevated temperatures up to 1000°F (538°C).
Physical Characteristics
Monel 400 possesses a density of 0.319 lb/in³ (8.83 g/cm³) and a melting range of 2370-2460°F (1300-1350°C). The alloy features a thermal conductivity of 15.5 BTU-in/hr-ft²-°F (22.4 W/m·K) and specific heat capacity of 0.092 BTU/lb-°F (385 J/kg·K) at room temperature, providing excellent thermal performance in heat exchange applications.
Chemical Composition (ASTM B164 Requirements)
Nickel (including cobalt): 63.0% minimum
Copper: 28.0-34.0%
Iron: 2.5% maximum
Manganese: 2.0% maximum
Carbon: 0.3% maximum
Silicon: 0.5% maximum
Sulfur: 0.024% maximum
Mechanical Properties
Tensile Strength: 70,000-85,000 psi (480-585 MPa)
Yield Strength (0.2% offset): 25,000-45,000 psi (170-310 MPa)
Elongation in 2 inches: 35-50%
Hardness: Rockwell B 65-85
Modulus of Elasticity: 26,000 ksi (179 GPa)
We provide comprehensive sizing flexibility to meet diverse application requirements:
Standard diameters: 0.125 inches to 12 inches (3 mm to 300 mm)
Lengths: Random mill lengths up to 20 feet (6 meters) or cut-to-size specifications
Tolerance: Hot-rolled bars ±0.005 inches, Cold-drawn bars ±0.002 inches
Surface finishes: Hot-rolled, turned, polished, or centerless ground
Special processing available including peeling, turning, and precision grinding
Monel 400 round steel serves as the ideal material for marine shafting, propeller shafts, pump components, and fasteners. Its resistance to saltwater corrosion, biofouling, and cavitation erosion makes it indispensable for offshore platforms, shipbuilding, and desalination plants. The alloy's non-magnetic properties further enhance its suitability for marine applications.
In chemical and petrochemical industries, Monel 400 demonstrates exceptional performance in handling sulfuric acid, and other aggressive chemicals. The round bars are commonly machined into valve components, pump parts, mixer shafts, and heat exchanger components that require reliability in corrosive service.
The oil and gas industry utilizes Monel 400 for downhole tools, valve trim, pump components, and instrumentation parts. The material's resistance to sour gas (H2S) environments and high-pressure conditions makes it valuable for both upstream and downstream applications.
Specialized Industrial Uses
Aerospace: Fuel and hydraulic system components
Power Generation: Feedwater heaters and condenser tubes
Pharmaceutical: Process equipment requiring contamination-free performance
Pulp and Paper: Digester and bleaching equipment components
Our Monel 400 round steel undergoes rigorous quality control throughout the manufacturing process. We employ vacuum induction melting (VIM) and electro-slag remelting (ESR) techniques to ensure chemical homogeneity and purity. Each production batch includes complete traceability and material certification per ASTM B164 requirements.
Quality Documentation
Certified Material Test Reports (CMTR)
Chemical Analysis Certificates
Mechanical Test Reports
Non-Destructive Testing Reports (UT, MT, PT as required)
Origin and Mill Certificates
Technical Superiority
Our Monel 400 round bars offer consistent microstructure and mechanical properties through optimized hot working and heat treatment processes. The material's excellent machinability (approximately 30% relative to free-cutting brass) allows for efficient manufacturing of complex components.
Customization Capabilities
We provide comprehensive customization options including special sizes, tolerances, surface finishes, and heat treatment conditions. Our engineering team works closely with customers to develop material solutions for specific application requirements.
Supply Chain Reliability
With strategic inventory management and established relationships with premier mills, we ensure reliable delivery schedules and consistent material quality. Our stock includes various sizes and conditions to meet emergency requirements and just-in-time delivery needs.
Our Monel 400 round steel complies with:
ASTM B164 (Standard Specification for Nickel-Copper Alloy Rod, Bar, and Wire)
ASME SB-164 (Boiler and Pressure Vessel Code Specification)
NACE MR0175/ISO 15156 (Sour Service Requirements)
Various international standards including DIN, JIS, and GB equivalents
Proven Performance
With decades of experience in supplying high-performance alloys, we have established a reputation for quality and reliability. Our Monel 400 products have been successfully implemented in critical applications worldwide.
Technical Support
Our metallurgical experts provide comprehensive technical support including material selection guidance, fabrication recommendations, and failure analysis services. We assist customers in optimizing their designs for maximum performance and cost efficiency.
Competitive Value
We offer competitive pricing without compromising quality, providing excellent value through extended service life, reduced maintenance costs, and improved operational reliability.
Environmental Responsibility
Our manufacturing processes adhere to environmental regulations and sustainability principles. Monel 400's long service life and recyclability contribute to reduced environmental impact over the product lifecycle.
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