TSM Technology is a professional manufacturer and global supplier of Monel 400 Flanges, delivering high-performance nickel-copper alloy flange solutions for demanding industrial applications. Monel 400 Flange is manufactured from a solid-solution nickel-copper alloy renowned for its exceptional resistance to seawater, acids, alkalis, and high-temperature environments. With excellent mechanical strength and outstanding corrosion resistance, it is widely used in marine engineering, chemical processing, oil & gas systems, and power generation industries. Designed for long service life and structural stability, Monel 400 flanges provide secure and durable connections in highly corrosive and high-pressure piping systems. Backed by an integrated production chain covering alloy melting, forging, machining, and precision finishing, we ensure consistent quality, accurate dimensions, and reliable performance in accordance with international standards.







DN10-600 NPS½"~ 60"
SCH: 5 ~ XXS
Classification: TH (THreaded) flange, SO (Slip-On Welding) flange, BL (Blind) flange, SW (Socket Welding) flange, LJ (Lapped) flange, WN (Welding Neck) flange
Pressure Level: 150 - 2500lbs
For customized size please confirm with our sales staff
ASTM B564 / ASME SB564
Monel 400(UNS N04400/W.Nr.2.4360) |
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Chemical Composition |
ALLOY |
% |
Ni |
C u |
F e |
C |
M n |
Si |
P |
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400 |
最小min |
63 |
28 |
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|
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最大max |
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34 |
2.5 |
0.3 |
2 |
0.5 |
0.024 |
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Physical Characteristics |
Density 8.83g/cm³ |
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Melting point 1300-1390℃ |
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Minimum mechanical properties of alloys at room temperature |
Typical mechanical properties |
tensile strength Rm N/mm² |
Yield Strength RP0.2 N/mm² |
Elongation A5% |
Test temperature Test℃ |
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Solution treatment |
480 |
170 |
35 |
Normal temperature |
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Excellent Corrosion Resistance: Performs well in acidic, alkaline, and marine environments.
High Strength & Toughness: Maintains mechanical integrity even at extreme temperatures.
Good Weldability & Machinability: Easily fabricated to suit different application needs.
Non-Magnetic: Suitable for sensitive applications requiring non-magnetic properties.
Marine Engineering: Piping and pump systems exposed to seawater.
Chemical Processing: Resistant to strong acids and alkalis.
Aerospace & Energy: Used in heat exchangers, condensers, and pressure vessels.
Oil & Gas: Offshore drilling platforms and refinery equipment.
We are looking for partners around the world to expand our business.
Reliable Global Supply
With global distribution capabilities, we can provide reliable logistics solutions no matter where the customer is.
Customized production service
Provide customized flange production services according to the specific needs of customers, including size, shape, tolerance range, etc.
Quality inspection
Products have passed international certifications such as AS9120 to ensure that each flange meets high quality standards.
Technical support and consultation
Provide full technical support from material selection to processing and molding to help customers solve technical problems.
Processing value-added service
Provide CNC processing, heat treatment, surface treatment and other value-added services to meet the diverse needs of customers.
Sample trial production service
Provide free samples or small batch trial production services to help customers verify product performance and reduce trial and error costs.

Q1: What specifications do your Monel 400 Flanges meet?
A: Our flanges comply with ASTM B564 / ASME SB564 standards.
Q2: What sizes do you offer?
A: We provide sizes from 1/2" (15 NB) to 48" (1200NB), with custom options available.
Q3: What flange types do you supply?
A: We offer TH (Threaded), SO (Slip-On), BL (Blind), SW (Socket Weld), LJ (Lapped), and WN (Welding Neck) flanges.
Q4: What is your payment method?
A: We accept T/T, L/C, and negotiable payment terms.
For inquiries, reach out to us at info@tsmnialloy.com or visit our website for more details.
TSM Technology – Your Trusted Monel 400 Flange Supplier!
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