Ganpat Metal manufactures and supplies certified ASTM B366 Monel 400 Nickel-Copper Butt Weld Fittings conforming to ASTM B366 WPN / ASME SB366 and ASME B16.9 / B16.28 standards. Monel 400 is a single-phase nickel-copper solid-solution alloy known for remarkable resistance to seawater, hydrofluoric acid, sulfuric acid, and alkalies. It retains excellent ductility and toughness from cryogenic temperatures up to 550°C.
Our ASTM B366 Monel 400 fittings portfolio includes 90° and 45° long and short radius elbows, straight tees, reducing tees, concentric and eccentric reducers, pipe caps, and stub ends. Available in seamless construction for ultra-high pressures and 100% X-ray inspected welded construction for large diameters, all fittings undergo rigorous solution annealing or normalizing heat treatment to assure superior metallurgical grain structure, ductility, and corrosion resistance.
We maintain deep inventories in sizes from 1/2" NB to 48" NB across schedules 10S, 40, STD, 80, XS, 160, and XXS. All fittings are beveled to ASME B16.25 for quick on-site fit-up and are supplied with EN 10204 Type 3.1 Mill Test Certificates from our Mumbai warehouse.
GM handles enquiries for ASTM B366 Monel 400 Fittings where buyers need to match fitting types (elbows, tees, reducers, end caps), nominal pipe sizes (NPS / DN), wall thickness schedules, and material grade to piping isometric drawings or project purchase specifications. The supplied inventory covers seamless and 100% X-ray welded fittings from 1/2" NB up to 48" NB across all schedules from Sch 10S to Sch XXS.
Grade selection should be based on the design pressure, service temperature, fluid media corrosivity, and mechanical strength requirements of the piping system. Buyers should also confirm the applicable manufacturing standard (ASME B16.9 / MSS-SP-43), weld bevel preparation (ASME B16.25), supplementary inspection requirements (radiography, PMI, hydrotest), and test documentation before finalizing an order.
| Parameter | Specification |
|---|---|
| Standard Specifications | ASTM B366 WPN / ASME SB366, ASME / ANSI B16.9, ASME B16.28, MSS-SP-43 |
| Grade Designation | ASTM B366 Monel 400 (UNS N04400) |
| Fitting Types | 90°/45° LR & SR Elbows, Straight/Reducing Tees, Concentric/Eccentric Reducers, End Caps, Stub Ends |
| Size Range | 1/2" NB to 48" NB (DN15 to DN1200) |
| Schedule / Thickness | Sch 5S, 10S, 20, 30, STD, 40, 60, XS, 80, 100, 120, 140, 160, XXS |
| Manufacturing Process | Seamless (Hot Mandrel / Hydroformed) & Welded (100% X-Ray Inspected) |
| End Preparation | Beveled Ends to ASME B16.25 (37.5° ± 2.5°), Plain Square Cut |
| Testing & Certification | PMI, Radiography (RT), Ultrasonic (UT), Hydrostatic Test, NABL Certified Lab |
| Documentation | EN 10204 Type 3.1 / 3.2 Mill Test Certificate, NACE MR0175 / ISO 15156 |
Standard chemical composition limits conform to international metallurgical standards.
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 63.00 min |
| Copper (Cu) | 28.00 – 34.00 |
| Iron (Fe) | 2.50 max |
| Manganese (Mn) | 2.00 max |
| Carbon (C) | 0.30 max |
| Silicon (Si) | 0.50 max |
| Sulfur (S) | 0.024 max |
Minimum mechanical property requirements in designated standard delivery condition:
| Property | Value (Annealed Condition) |
|---|---|
| Tensile Strength (min) | 485 MPa (70 ksi) |
| Yield Strength 0.2% (min) | 170 – 240 MPa (25 – 35 ksi) |
| Elongation in 2" (min) | 35% |
| Hardness (Brinell max) | 150 HB |
| Density | 8.80 g/cm³ |
| Standard / Country | Designation |
|---|---|
| ASTM / ASME Bar | B164 / SB164 UNS N04400 |
| ASTM / ASME Fitting | B366 WP400 |
| UNS | N04400 |
| Werkstoff Nr. | 2.4360 |
| EN / DIN | NiCu30Fe |
| Common Name | Monel 400 / Alloy 400 |
| Form / Type | Size Range | Length / Dimensions | Condition / Standard |
|---|---|---|---|
| 90° Long Radius (LR) Elbow | 1/2" to 48" NB (DN15 - DN1200) | Sch 5S to Sch XXS | ASME B16.9 / R = 1.5D |
| 45° Long Radius (LR) Elbow | 1/2" to 48" NB (DN15 - DN1200) | Sch 5S to Sch XXS | ASME B16.9 / Standard Radius |
| 90° Short Radius (SR) Elbow | 1/2" to 36" NB (DN15 - DN900) | Sch 10S to Sch XXS | ASME B16.9 / R = 1.0D |
| Equal / Straight Tee | 1/2" to 48" NB (DN15 - DN1200) | Sch 5S to Sch XXS | ASME B16.9 / Center-to-End C = M |
| Reducing Tee | 1/2" x 3/8" to 48" x 40" NB | Sch 5S to Sch XXS | ASME B16.9 / Branch Dimension M |
| Concentric Reducer | 1/2" x 3/8" to 48" x 40" NB | Sch 5S to Sch XXS | ASME B16.9 / In-line Center Flow Axis |
| Eccentric Reducer | 1/2" x 3/8" to 48" x 40" NB | Sch 5S to Sch XXS | ASME B16.9 / Flat Side for Horizontal Lines |
| End Cap | 1/2" to 48" NB (DN15 - DN1200) | Sch 5S to Sch XXS | ASME B16.9 / Ellipsoidal Head Profile |
| Stub End (Lap Joint) | 1/2" to 24" NB (DN15 - DN600) | Sch 5S to Sch 80 | MSS-SP-43 / ASME B16.9 Short/Long Pattern |
Custom dimensions, special cuts, and tailored surface conditions available on request.
Estimate butt weld fitting weights by fitting type, nominal pipe size (NPS) and schedule.
Ganpat Metal manufactures and supplies certified ASTM B366 Monel 400 Fittings for industrial buyers across India. All materials are sourced from premium quality mills, fully tested for chemistry, mechanical properties, and dimensional tolerances, and supplied with complete traceable Mill Test Certificates.
Whether you require standard stock dimensions or customized sizes, Ganpat Metal maintains deep inventories in Mumbai and provides rapid dispatch, custom cut-to-length services, and third-party inspection support.
India
UAE
Saudi Arabia
Oman
Australia
Malaysia
Singapore
Bangladesh
Egypt
Brazil
Russia
Kazakhstan
| Requirement | Details to Provide |
|---|---|
| Fitting Type | 90°/45° LR Elbow, Equal Tee, Reducing Tee, Reducer, Cap, Stub End |
| Grade | ASTM B366 Monel 400 (UNS N04400) |
| Size (NPS / DN) | 1/2" NB to 48" NB |
| Schedule / Wall | Sch 10S, Sch 40, Sch 80, Sch 160, Sch XXS |
| Construction | Seamless or 100% X-Ray Welded (ASME B16.9) |
| End Preparation | Beveled Ends (ASME B16.25) or Plain Square Cut |
| Quantity | Required number of pieces or BOM list |
| Documentation | EN 10204 Type 3.1 / 3.2 MTC with full melt analysis & PMI |