When your operations demand exceptional corrosion resistance and mechanical strength, our Monel 400 Round Bar delivers unmatched performance in the harshest environments. This premium nickel-copper alloy, which combines 63-70% nickel with 28-34% copper, creates a material that excels in marine, oil and gas, and chemical processing applications. You'll find our precision-manufactured bars resist hydrofluoric acid, seawater, and alkaline solutions while maintaining structural integrity from -200°C to +600°C. With TSM Technology's 14+ years of metallurgical expertise and AS9100D aerospace certification, you're investing in reliability that protects your critical operations.
Monel 400 represents the gold standard in nickel-copper alloy engineering. This high-performance round bar material offers superior corrosion resistance combined with exceptional mechanical properties. You benefit from its unique ability to withstand extreme temperatures while maintaining ductility and strength.
The alloy's composition creates a protective barrier against aggressive chemicals and marine environments. Your equipment stays operational longer with reduced maintenance costs and downtime.

| Parameter | Details | |
|---|---|---|
| Diameter Range | 6-600 mm (custom sizes available) | |
| Length | Up to 6,000 mm (custom lengths supported) | |
| Standards | ASTM B164, ASME SB-164, EN 10095 | |
| Tolerance | ±0.01mm (CNC precision machining) | |
| Surface Finish | Polished, Peeled, Turned | |
| Supply Capacity | 300 tons/month |
| Property | Value/Range | |
|---|---|---|
| Tensile Strength | ~550 MPa minimum | |
| Yield Strength | ~240 MPa minimum | |
| Elongation | 35% minimum | |
| Hardness | HRB 65-85 | |
| Density | 8.83 g/cm³ | |
| Melting Point | 1300-1350°C | |
| Composition | Ni 63-70%, Cu 28-34%, Fe ≤2.5%, Mn ≤2% |
Your projects require materials that meet stringent industry standards. Our bars comply with ASTM B164 and ASME SB-164 specifications. We maintain AS9100D aerospace certification and ISO 9001 quality management systems.
Every shipment includes complete Mill Test Reports (MTR) with chemical analysis and mechanical property verification. You receive full material traceability from raw material sourcing through final inspection.
Exceptional Corrosion Resistance: Withstands hydrofluoric acid, sulfuric acid, and marine environments without degradation. Your equipment operates reliably in the most aggressive conditions.




Our 50,000㎡ smart factory utilizes 100+ precision machines including five-axis machining centers. You benefit from consistent quality through automated processes and real-time monitoring systems.
Proprietary heat treatment processes optimize corrosion resistance and mechanical properties. Each Monel 400 Round Bar receives customized processing based on your specific application requirements.
Raw material inspection ensures chemical composition compliance before processing begins. Forging and extrusion operations create the basic bar geometry with proper grain structure.
Controlled heat treatment cycles develop optimal mechanical properties and corrosion resistance. Precision CNC machining achieves your specified dimensions and surface finishes.
Surface treatments including sandblasting, electropolishing, and chemical passivation, prepare bars for immediate use. Final quality testing validates all specifications before shipment.

100% ultrasonic testing (UT) detects internal defects that could compromise performance. Radiographic testing (RT) provides additional verification of material integrity.
Hydrostatic pressure testing validates strength under operating conditions. Chemical analysis confirms alloy composition meets specification requirements.
Dimensional inspection verifies tolerances using calibrated measuring equipment. Laser marking provides permanent identification for traceability.
Proven Expertise: 14+ years specializing in nickel alloy production with deep understanding of critical application requirements.
Quality Certifications: AS9100D aerospace and ISO 9001 certifications ensure consistent quality that meets your most demanding specifications.
Advanced Manufacturing: State-of-the-art equipment and proprietary processes deliver superior products with reliable performance.
Global Support: 72-hour technical support and worldwide logistics networks keep your operations running smoothly.
Custom Solutions: Engineering expertise helps optimize material selection and processing for your specific applications.
Our manufacturing capacity tripled in 2023 to support large-volume orders without compromising quality or delivery schedules. In-house R&D laboratories continuously improve material performance and develop new processing technologies.
Quality control laboratories perform comprehensive testing using advanced equipment. Metallurgical expertise ensures optimal material properties for your applications.

Anti-corrosion coatings protect the product during transportation. Wooden crates provide secure packaging for international shipments.

Q: What standards do your bars meet for offshore applications?
A: Our products comply with ASTM B164, ASME SB-164, and NACE MR0175 for sour service environments. Complete MTR documentation accompanies every shipment.
Q: Can you machine custom diameters beyond standard sizes?
A: Yes, our CNC capabilities handle diameters up to 600mm with custom options for larger sizes. Contact us for project-specific requirements.
Q: How do you ensure corrosion resistance performance?
A: Proprietary heat treatment processes combined with 100% ultrasonic testing validate material integrity and corrosion resistance properties.
Q: What's the lead time for bulk orders over 20 tons?
A: Typical delivery is 25-30 days with priority scheduling for large orders. Our increased production capacity supports urgent project timelines.
Q: Do you provide technical support after delivery?
A: Our engineering team offers 72-hour technical assistance for installation guidance, troubleshooting, and performance optimization.
Ready to discuss your Monel 400 Round Bar requirements? Our technical sales team understands your challenges and can recommend optimal solutions for your specific applications. Email: info@tsmnialloy.com
Get your free quote today and discover how our premium materials can improve your operational reliability and reduce maintenance costs.
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