Paul Tube Fittings is a well-respected manufacturer and supplier of top-notch Monel K500 Tube Fittings based in Houston, USA. With a strong dedication to quality, Paul Tube Fittings offers corrosion-resistant and durable solutions that cater to the rigorous demands of various industries. Monel K500, a nickel-copper alloy enriched with aluminum and titanium, boasts impressive strength and outstanding resistance to seawater, acidic conditions, and high-pressure environments. Our fittings are meticulously engineered to comply with international standards and meet client specifications, making us a go-to partner for businesses in the marine, chemical processing, and oil & gas sectors.
Monel K500 Tube Fittings primarily consist of nickel (about 63%) and copper (around 30%), along with aluminum (2.3–3.15%), titanium (0.35–0.85%), and trace elements. These components enhance its precipitation hardening and mechanical strength. The alloy showcases a tensile strength ranging from 110 to 160 ksi, yield strength between 75 and 130 ksi, and an elongation of roughly 20%. It offers remarkable resistance to corrosion, fatigue, and stress-corrosion cracking, especially in marine and chemical settings. Its high strength remains consistent across a broad temperature range, making it perfect for demanding applications.
Dimensions : DIN, ASTM, ASME, BS and all International Standards
Specifications : ASTM B366 / ASME SB 366
Grade : Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500)
Size Range : 1/8” to 2” and 2mm to 32mm tube diameter
Working Pressure : up to 6,000psi (based on severity of application)
Available Thread : NPT(ANSI B1.20.1), and ISO thread configurations (BSPT, BSPP)
| Grade | C | Mn | Si | Cu | Fe | Ni | S |
| K500 | 0.25 max | 1.5 max | 0.5 max | 27.00 – 33.00 | 0.5 – 2 | 63.00 min | 0.010 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.44 g/cm3 | 1350 °C (2460 °F) | Psi – 1,60,000 , MPa – 1100 | Psi – 1,15000 , MPa – 790 | 20% |
| STANDARD | WERKSTOFF NR. | UNS | JIS | AFNOR | BS | GOST | EN |
| Monel K500 | 2.4375 | N05500 | – | – | – | – | – |
| Bulkhead Union | Straight Union | Reducing Union | Union Elbow | Union Cross | Union Tee |
| Female Connector | Male Connector | Male Bulkhead Connector | Female Bulkhead Connector | Male to Male Elbow | Male Elbow |
| Male to Female Elbow | Female Elbow | Male Run Tee | Male Branch Tee | Female Branch Tee | Female Run Tee |
| Female Adaptor | Male Adaptor | Tube End Reducer | OD Plug | Bulkhead Lock Nut | OD Cap |
Contact us to get a quick quote for your requirement.
Monel K500 Tube Fittings find extensive use in industries that require exceptional strength and corrosion resistance. They are particularly suited for marine engineering, chemical and hydrocarbon processing, offshore oil rigs, and the manufacturing of pumps and valves. Thanks to their resistance to saltwater and harsh chemicals, they are favored in subsea piping systems, heat exchangers, and seawater valves. Moreover, Monel K500 fittings are utilized in aerospace, nuclear reactors, and medical equipment, where durability and reliability are paramount. Their non-magnetic properties also make them ideal for sensitive instrumentation and electrical components in challenging environments.
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