Monel 400 Pipe & Tube Suppliers
Monel 400 Pipe, ASTM B163, ASTM B165, ASTM F96, UNS N04400 Pipe, Nickel Alloy 400 Pipe Supplier
Table of Content
- Types of Monel 400 Pipes & Tubes
- About Monel 400 Pipe & Tubes
- Weldability & Fabrication
- Get Monel Alloy 400 Pipes, ASTM B165 Monel 400 Seamless Pipes
- Monel 400 Pipe Specification
- Monel UNS N04400 Seamless Pipe Chemical Composition
- Monel 400 Tubes Mechanical Properties
- Equivalent Grades for Monel 400 Seamless and Welded Tubes
- Monel Alloy 400 UNS N04400 Pipes Sizes In MM
- Available Types of Monel 400 Tubes
- Pressure Rating of Monel 400 UNS N04400 Pipe
- Dimensions of Monel 400 Pipe
- Size Range of Alloy 400 Pipe
- Schedule Chart of Nickel 400 Pipe
- Weight Chart Of ASTM B165 Monel 400 Pipes
- Application of Monel 400 Tubes & Pipes
The Monel 400 pipes and tubes are the preferred choice among engineers who need nickel-copper alloy piping specified in corrosive-service, high-temperature as well as marine service. Answering to the standards of ASTM B165 / ASME SB165 in seamless and welded varieties, UNS N04400 pipe provides tensile strength up to 620 Mpa and established seawater, Hf acid and sour gas service.
Kalpataru Piping maintains an extensive inventory of 4mm to 1219.2mm OD, SCH 5S to XXH, to be immediately shipped out to projects. Exporting to 40+ countries, and certified by ONGC, BPCL, HPCL, and NTPC, we provide ASTM B165 Monel 400 Pipes with EN 10204 3.1 / 3.2 MTCs and 3rd parties TUV, Bureau Veritas, SGS and Lloyds Register.
Browse the complete Monel Products range or view all Monel Pipes & Tubes grades for the full catalogue
Types of Monel 400 Pipes & Tubes
Kalpataru Piping offers Monel 400 pipes and tubes in seamless, welded, ERW, and EFW forms across different sizes and finishes for diverse industrial requirements. All products undergo stringent QC: PMI, hardness, hydrostatic, and ultrasonic tests.
Monel 400 Seamless Pipes (ASTM B165)
Cold-drawn or hot-worked, with no longitudinal weld seam. Preferred for high-pressure, high-temperature, and critical corrosion-service applications.
Monel 400 Welded Pipes (ASTM B725)
Manufactured from strip or plate and seam-welded. ASTM B725 covers welded pipe; ASTM B730 covers welded tubes for heat-exchanger and condenser service.
ERW Monel 400 Pipes
Electric resistance welded for high-volume, cost-efficient projects where seamless is not specified.
Monel 400 Seamless Tubes
Tight-tolerance instrumentation and heat-exchanger tubes; wall thicknesses from 0.010″ upward.
Monel 400 Welded Tubes
Available per ASTM B730 for general corrosion-resistant service in condensers and evaporators.
What Is Monel 400? Alloy Composition and Metallurgical Properties
Monel 400 is a solid solution of nickel-copper alloy, which is highly resistant to corrosion, strong, and resilient in the most extreme industrial environments. It is an alloy that is made of about 63-70% nickel, 28-34% copper, iron (Fe) and traces of manganese and silicon. It does not become hardened solely through heat treatment, cold working adds to it excellent dimensional stability and strength.
Tensile strength of this alloy is 517-620 Mpa, yield strength is 172-345 Mpa, and excellent ductile behaviour of the alloy is observed at cryogenic temperatures to 538degC (1000degF). DIN 2.4360 Monel 400 Pipe consists of a melting point of around 1350degC, which means that it is sure to perform when the pressure and heat are very high. ASTM B165 UNS N04400 tubes are very popular in heat exchangers, condenser tubes, and evaporators of marine and offshore constructions due to its chloride stress corrosion resistance.
Welding and Fabrication Guide for Monel 400 Pipe
GTAW, GMAW, or SMAW can be used to weld Monel 400 Welded Pipe without any required post welding heat treatment. All Monel 400 weld joints should be filled with ERNiCu-7 filler. Heat-tint oxides are removed by treating the weld with an appropriate acid solution to restore corrosion resistance in the weld area – this is suggested to prevent brittleness or localised corrosion.
Hot working can be performed at 648degC-1176degC; cold working strengthens and adds a better surface finish. Heavy cold work can be restored to ductility by annealing at 926deg C.
Full Specification Reference: Sizes, Schedules, and Standards (ASTM B165)
| Parameter | Details |
| Standards | ASTM B165 / ASME SB165 (Seamless) | ASTM B725 / ASME SB725 (Welded) | ASTM B730 (Welded Tube) | AMS 4574 (Aerospace Tube) |
| OD Range | 4 mm – 1219.2 mm (4 mm – 48″) |
| Wall Thickness | 0.5 mm – 20 mm |
| Schedule | SCH 5S, SCH 10S, SCH 40S, STD, SCH 80S, SCH 160, XXH |
| Length | Single Random (SRL), Double Random (DRL), Cut-to-Length |
| End Types | Plain End (PE), Beveled End (BE), Threaded End |
| Surface Finish | Annealed & Pickled (AP), Bright Annealed (BA), Polished (2B, No.4, Mirror), Black |
| Form | Round, Square, Rectangular, Hydraulic, Straight |
| Marking | Standard | Grade | OD | Thickness | Length | Heat No. (or per customer request) |
| MTC | EN 10204 3.1 and EN 10204 3.2 |
| Specialisation | Large Diameter Pipes up to 48″ |
Monel UNS N04400 Chemical Composition
| Element | Ni | Cu | Fe | Mn | C | Si | S |
| Min (%) | 63.0 | 28.0 | — | — | — | — | — |
| Max (%) | 70.0 | 34.0 | 2.5 | 2.0 | 0.30 | 0.50 | 0.024 |
Monel 400 Mechanical Properties
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%) | Elongation | Hardness (HRB) | Hardness (HB) | Hardness (HV) |
| Monel 400 | 8.8 g/cm³ | 1350°C (2460°F) | Psi–80,000 | MPa–550 | Psi–35,000 | MPa–240 | 40% | 65 HRB | 130 HB | 140 HV |
Equivalent Grades for Monel 400
| Standard | Werkstoff Nr. | UNS | JIS | BS | GOST | AFNOR | EN |
| Monel 400 | 2.4360 | N04400 | NW 4400 | NA 13 | МНЖМц 28-2,5-1,5 | NU-30M | NiCu30Fe |
Monel 400 Corrosion Resistance : Chemical Compatibility Guide
Monel 400 owes its broad corrosion resistance to the synergistic effect of nickel and copper. In reducing environments, nickel dominates; in mildly oxidising conditions, copper contributes passivity. The result is an alloy that outperforms stainless steel in chloride, fluoride, and reducing acid environments.
| Corrosion Medium | Concentration | Temperature Limit | Resistance Rating |
| Seawater (flowing) | All | Up to 100°C | Excellent |
| Seawater (stagnant) | All | Up to 60°C | Good — monitor for pitting |
| Hydrofluoric Acid (HF) | Up to 70% | Up to 80°C | Excellent |
| Hydrofluoric Acid (HF) | Anhydrous | Ambient | Excellent |
| Sulfuric Acid (H₂SO₄) | Dilute, < 85% | Ambient | Good (reducing conditions) |
| Hydrochloric Acid (HCl) | Dilute, < 10% | Ambient, deaerated | Fair — avoid oxidising agents |
| Sodium Hydroxide (NaOH) | All concentrations | Up to 100°C | Excellent |
| Phosphoric Acid (H₃PO₄) | Up to 85% | Ambient | Good |
| Steam | — | Up to 480°C | Excellent |
| Sour Gas (H₂S / CO₂) | Process conditions | Up to 200°C | Excellent |
| Chlorinated Solvents | Dry | Ambient | Good |
| Brine / Salt Solutions | All | Up to 150°C | Excellent |
| Alkalis (general) | Most concentrations | Up to 100°C | Excellent |
| Ratings are general guidance based on standard published corrosion data for UNS N04400. Specify actual service concentrations, temperature, velocity, and any contaminants to the Kalpataru technical team for confirmation before final material selection. |
Monel 400 Pipe Sizes in MM (ASTM B165)
| OD (mm) | WT (mm) | Size (in) | Sch | Kg/m |
| 13.72 | 1.65 | 1/4 | 10S | 0.50 |
| 13.72 | 2.24 | 1/4 | 40S | 0.64 |
| 13.72 | 3.02 | 1/4 | 80S | 0.81 |
| 21.34 | 2.11 | 1/2 | 10S | 1.02 |
| 21.34 | 2.77 | 1/2 | 40S | 1.29 |
| 21.34 | 3.73 | 1/2 | 80S | 1.65 |
| 33.40 | 2.77 | 1 | 10S | 2.13 |
| 33.40 | 3.38 | 1 | 40S | 2.54 |
| 33.40 | 4.55 | 1 | 80S | 3.29 |
| 33.40 | 6.35 | 1 | 160 | 4.30 |
| 48.26 | 2.77 | 1½ | 10S | 3.16 |
| 48.26 | 3.68 | 1½ | 40S | 4.11 |
| 48.26 | 5.08 | 1½ | 80S | 5.49 |
| 60.33 | 2.77 | 2 | 10S | 3.99 |
| 60.33 | 3.91 | 2 | 40S | 5.52 |
| 60.33 | 5.54 | 2 | 80S | 7.60 |
| 60.33 | 8.74 | 2 | 160 | 11.29 |
| 88.90 | 3.05 | 3 | 10S | 6.56 |
| 88.90 | 5.49 | 3 | 40S | 11.47 |
| 88.90 | 7.62 | 3 | 80S | 15.51 |
| 88.90 | 11.13 | 3 | 160 | 21.67 |
| 114.30 | 3.05 | 4 | 10S | 8.50 |
| 114.30 | 6.02 | 4 | 40S | 16.32 |
| 114.30 | 8.56 | 4 | 80S | 22.67 |
| 114.30 | 13.49 | 4 | 160 | 34.05 |
| 168.28 | 3.40 | 6 | 10S | 14.04 |
| 168.28 | 7.11 | 6 | 40S | 28.69 |
| 168.28 | 10.97 | 6 | 80S | 43.21 |
| 219.08 | 8.18 | 8 | 40S | 43.20 |
| 219.08 | 12.70 | 8 | 80S | 65.63 |
| 219.08 | 18.23 | 8 | 120 | 91.30 |
| 219.08 | 23.01 | 8 | 160 | 112.97 |
Schedule Chart of Monel 400 Pipe
| Pipe Size (IPS) | OD (inches) | Available Schedules |
| 1/8″ | 0.405″ | SCH 40, 80 |
| 1/4″ | 0.540″ | SCH 10, 40, 80 |
| 3/8″ | 0.675″ | SCH 10, 40, 80 |
| 1/2″ | 0.840″ | SCH 5, 10, 40, 80, 160, XXH |
| 3/4″ | 1.050″ | SCH 10, 40, 80, 160, XXH |
| 1″ | 1.315″ | SCH 5, 10, 40, 80, 160, XXH |
| 1-1/4″ | 1.660″ | SCH 10, 40, 80, 160, XXH |
| 1-1/2″ | 1.900″ | SCH 10, 40, 80, 160, XXH |
| 2″ | 2.375″ | SCH 10, 40, 80, 160, XXH |
| 2-1/2″ | 2.875″ | SCH 10, 40, 80, 160, XXH |
| 3″ | 3.500″ | SCH 5, 10, 40, 80, 160, XXH |
| 3-1/2″ | 4.000″ | SCH 10, 40, 80, 160, XXH |
| 4″ | 4.500″ | SCH 10, 40, 80, 160, XXH |
| 5″ | 5.563″ | SCH 10, 40, 80, 160, XXH |
| 6″ | 6.625″ | SCH 5, 10, 40, 80, 120, 160, XXH |
| 8″ | 8.625″ | SCH 5, 10, 40, 80, 120, 160, XXH |
| 10″ | 10.750″ | SCH 10, 20, 40, 80 |
| 12″ | 12.750″ | SCH 10, 20, 40 (0.375″), True 40 (0.406″), SCH 80 (0.500″) |
| 14″ | 14.000″ | SCH 10 (0.188″), SCH 40 (0.375″) |
| 16″ | 16.000″ | SCH 10 (0.188″), SCH 40 (0.375″) |
| 18″ | 18.000″ | SCH 40 (0.375″) |
Pressure Rating of Monel 400 UNS N04400 Pipe
| OD (in.) | WT 0.120″ | WT 0.109″ | WT 0.095″ | WT 0.083″ | WT 0.065″ | WT 0.049″ | WT 0.035″ | WT 0.028″ |
| 1″ | 4300 psig | 3900 | 3400 | 2900 | 2200 | — | — | — |
| 3/4″ | — | — | 4600 | 4000 | 3000 | 2200 | — | — |
| 1/2″ | — | — | — | — | 4400 | 3200 | 2300 | — |
| 3/8″ | — | — | — | — | 6100 | 4400 | 3100 | — |
| 1/4″ | — | — | — | — | 9500 | 7000 | 4800 | 3700 |
| 1/8″ | — | — | — | — | — | — | 10100 | 7900 |
Dimensions of Monel 400 Pipe
| Size (inch) | OD (mm) | OD (inch) | WT (mm) | WT (inch) |
| 1/8″ NPS 6 | 10.3 | 0.41 | 1.73 | 0.068 |
| 1/4″ NPS 8 | 13.7 | 0.54 | 2.24 | 0.088 |
| 3/8″ NPS 10 | 17.1 | 0.68 | 2.31 | 0.091 |
| 1/2″ NPS 15 | 21.3 | 0.84 | 2.77 | 0.109 |
| 3/4″ NPS 20 | 26.7 | 1.05 | 2.87 | 0.113 |
| 1″ NPS 25 | 33.4 | 1.32 | 3.38 | 0.133 |
| 1-1/4″ NPS 32 | 42.2 | 1.66 | 3.56 | 0.140 |
| 1-1/2″ NPS 40 | 48.3 | 1.90 | 3.68 | 0.145 |
| 2″ NPS 50 | 60.3 | 2.375 | 3.91 | 0.154 |
| 2-1/2″ NPS 65 | 73.0 | 2.875 | 5.16 | 0.203 |
| 3″ NPS 80 | 88.9 | 3.50 | 5.49 | 0.216 |
| 4″ NPS 100 | 114.3 | 4.50 | 6.02 | 0.237 |
| 6″ NPS 150 | 168.3 | 6.625 | 7.11 | 0.280 |
| 8″ NPS 200 | 219.1 | 8.625 | 8.18 | 0.322 |
| 10″ NPS 250 | 273.0 | 10.75 | 9.27 | 0.365 |
| 12″ NPS 300 | 323.8 | 12.75 | 10.31 | 0.406 |
| 14″ NPS 350 | 355.6 | 14.0 | 11.13 | 0.437 |
| 16″ NPS 400 | 406.4 | 16.0 | 12.70 | 0.500 |
| 18″ NPS 450 | 457.0 | 18.0 | 14.27 | 0.562 |
| 20″ NPS 500 | 508.0 | 20.0 | 15.09 | 0.594 |
| 24″ NPS 600 | 610.0 | 24.0 | 17.48 | 0.688 |
Monel 400 Tube Sizes (O.D. by Wall Thickness)
| Wall Thickness | Available O.D. Sizes |
| .010 | 1/16″, 1/8″, 3/16″ |
| .020 | 1/16″, 1/8″, 3/16″, 1/4″, 5/16″, 3/8″ |
| .028 | 1/8″, 3/16″, 1/4″, 5/16″, 3/8″, 1/2″, 3/4″, 1″, 1-1/2″, 2″ |
| .035 | 1/8″ to 2″ (all standard sizes including 7/16″, 5/8″, 7/8″, 1-1/4″, 1-5/8″, 2-1/4″) |
| .049 | 3/16″ to 2-1/4″ (all standard sizes) |
| .065 | 1/4″ to 3″ (all standard sizes including 1-3/4″, 2-1/2″) |
| .083 | 1/4″ to 3″ (all standard sizes including 1-7/8″) |
| .095 | 1/2″, 5/8″, 1″, 1-1/4″, 1-1/2″, 2″ |
| .109 | 1/2″, 3/4″, 1″, 1-1/4″, 1-1/2″, 2″ |
| .120 | 1/2″ to 3″ (all standard sizes including 2-1/4″, 2-1/2″) |
| .125 | 3/4″, 1″, 1-1/4″, 1-1/2″, 2″, 3″, 3-1/4″ |
| .250 | 3″ |
| .375 | 3-1/2″ |
Weight Chart of ASTM B165 Monel 400 Pipes
| NPS | OD (in) | OD (mm) | WT (in) | WT (mm) | Sched | kg/Mtr | Lb/ft |
| 1/2″ | 0.840 | 21 | 0.109 | 2.769 | 40 STD | 1.268 | 0.851 |
| 1/2″ | 0.840 | 21 | 0.147 | 3.734 | 80 XHY | 1.621 | 1.088 |
| 3/4″ | 1.050 | 27 | 0.113 | 2.870 | 40 STD | 1.684 | 1.131 |
| 3/4″ | 1.050 | 27 | 0.154 | 3.912 | 80 XHY | 2.195 | 1.474 |
| 1″ | 1.315 | 33 | 0.133 | 3.378 | 40 STD | 2.501 | 1.679 |
| 1″ | 1.315 | 33 | 0.179 | 4.547 | 80 XHY | 3.325 | 2.172 |
| 1-1/4″ | 1.660 | 42 | 0.140 | 3.556 | 40 STD | 3.385 | 2.273 |
| 1-1/2″ | 1.900 | 48 | 0.145 | 3.683 | 40 STD | 4.048 | 2.718 |
| 2″ | 2.375 | 60 | 0.154 | 3.912 | 40 STD | 5.441 | 3.653 |
| 2″ | 2.375 | 60 | 0.218 | 5.537 | 80 XHY | 7.480 | 5.022 |
| 2-1/2″ | 2.875 | 73 | 0.203 | 5.516 | 40 STD | 8.629 | 5.793 |
| 3″ | 3.500 | 89 | 0.216 | 5.486 | 40 STD | 11.284 | 7.576 |
| 3″ | 3.500 | 89 | 0.300 | 7.620 | 80 XHY | 15.272 | 10.253 |
| 4″ | 4.500 | 114 | 0.237 | 6.020 | 40 STD | 16.073 | 10.790 |
| 6″ | 6.625 | 168 | 0.280 | 7.112 | 40 STD | 28.690 | 18.974 |
| 8″ | 8.625 | 219 | 0.322 | 8.179 | 40 STD | 42.352 | 28.554 |
| 8″ | 8.625 | 219 | 0.500 | 12.700 | 80 XHY | 64.627 | 43.388 |
| 10″ | 10.750 | 273 | 0.365 | 9.271 | 40 STD | 63.301 | 40.483 |
| 12″ | 12.750 | 324 | 0.375 | 9.525 | STD | 73.824 | 49.562 |
| 14″ | 14.000 | 356 | 0.375 | 9.525 | STD | 81.281 | 54.568 |
| 16″ | 16.000 | 406 | 0.375 | 9.525 | 30 STD | 93.213 | 62.578 |
| 18″ | 18.000 | 457 | 0.375 | 9.525 | STD | 105.144 | 70.588 |
| 20″ | 20.000 | 508 | 0.375 | 9.525 | 20 STD | 117.075 | 78.598 |
| 24″ | 24.000 | 610 | 0.375 | 9.525 | 20 STD | 140.938 | 94.618 |
| Use the online Monel 400 Pipe Weight Calculator to estimate weight instantly for any OD, wall thickness, and schedule. |
Surface Finish Options
| Finish Code | Description | Typical Use |
| AP (Annealed & Pickled) | Heat treated and acid pickled for oxide-free surface | Chemical process, pharmaceutical |
| BA (Bright Annealed) | Annealed in controlled atmosphere; smooth bright finish | Food processing, instrumentation |
| Polished (No.4 / No.8) | Mechanically polished to specified Ra value | Pharmaceutical, marine display |
| Black (Hot-rolled) | As-rolled, no further surface treatment | Structural, industrial applications |
Pipe End Types
| End Type | Code | Description |
| Plain End | PE | Straight cut — for socket weld or coupling joints |
| Beveled End | BE | Machined at 30° bevel — standard for butt-weld fabrication (ASME B16.25) |
| Threaded End | TE | NPT or BSPT thread — for threaded fittings and valves |
Monel 400 Pipe Price Per Kg in India — Request Current Price
Monel 400 pipe price per kg in India varies based on OD, wall thickness, schedule, surface finish, and order quantity. As a direct manufacturer and stockist, Kalpataru Piping offers competitive ex-works and CIF pricing with no middlemen margin.
As an indicative reference, Monel 400 seamless pipe in SCH 40 (small-bore up to 2″) typically ranges from INR 2,800–5,500/kg ex-Mumbai, depending on wall thickness and finish. Prices are indexed to LME nickel and copper — contact us for a current confirmed quote.
Factors that affect Monel 400 pipe price:
- Nickel and copper LME prices (Monel 400 is 63–70% Ni)
- Pipe diameter, wall thickness, and schedule
- Surface finish (BA and polished carry a premium over AP)
- Quantity: mill run vs ex-stock
- MTC type: 3.1 standard; 3.2 with witness inspection attracts additional cost
| For ex-stock items (4 mm to 219 mm OD, standard schedules), typical dispatch is 3–5 working days from Mumbai. Mill orders for large-diameter or non-standard wall thickness carry 8–14 week lead times. Contact us for project-specific scheduling. |
Monel 400 vs Monel K500: Which Grade to Specify?
Monel K500 (UNS N05500) is a precipitation-hardening variant of Monel 400. The table below helps procurement engineers and material specifiers choose the correct grade:
| Property | Monel 400 (UNS N04400) | Monel K500 (UNS N05500) |
| Base Composition | Ni 63–70%, Cu 28–34% | Ni 63–70%, Cu 28–34% + Al, Ti |
| Tensile Strength (annealed) | 550 MPa (80 ksi) | 900–1100 MPa (130–160 ksi) aged |
| Yield Strength (annealed) | 240 MPa (35 ksi) | 620–690 MPa (90–100 ksi) aged |
| Hardness | 65 HRB | 25–35 HRC (aged) |
| Magnetic Properties | Slightly magnetic | Non-magnetic (aged) |
| Weldability | Readily weldable; no PWHT required | More complex; age-hardening post-weld required |
| Corrosion Resistance | Excellent — seawater, HF acid, reducing acids | Equivalent to Monel 400 |
| Typical Pipe/Tube Use | Chemical plant piping, heat exchangers, marine | Downhole tubing, shafts, pump impellers |
| Standard (Pipe/Tube) | ASTM B165 (seamless), ASTM B725 (welded) | ASTM B165 (seamless), ASTM B725 (welded) |
| Cost | Lower | Higher (additional precipitation-hardening process) |
For Monel K500 pipes and tubes, see the Monel K500 Pipes & Tubes product page.
Applications of Monel 400 Tubes & Pipes
Monel 400 pipes and tubes are used in marine engineering, chemical processing, oil & gas, heat exchangers, and power generation. Their excellent resistance to seawater, acids, and high temperatures makes them ideal for condensers, pumps, valves, and similar equipment. For full alloy continuity in piping systems, specify matched Monel 400 buttweld fittings and Monel 400 flanges alongside your pipe order to avoid galvanic cell risks.
| Industry | Typical Components |
| Chemical Processing | HF acid alkylation units, reaction vessels, reboilers, condenser tubes |
| Oil & Gas | Downhole tubing, wellhead components, sour service piping (H₂S/CO₂ service) |
| Marine & Offshore | Seawater piping, pump shafts, valve stems, propeller shafts, heat exchangers |
| Power Generation | Feed water heaters, condenser tubing, turbine components |
| Aerospace | Fuel system tubing, hydraulic lines (AMS 4574 specification) |
| Pharmaceutical | Process piping in HF acid environments, clean-room tubing |
| Pulp & Paper | Digesters, bleach plant, chlorine dioxide handling systems |
| Desalination | MSF/MED heat exchanger tubes, brine heater components |
Related Products & Complete Piping Solutions
Complete your Monel 400 piping system with Kalpataru Piping’s full range:
Frequently Asked Questions
Can Monel 400 pipes and tubes resist corrosion in seawater?
Yes. Monel 400 Pipes and tubes are very resistant to seawater application. They contain high nickel-copper content that prevents pitting, crevice corrosion and stress-corrosion cracking. In stagnant seawater at temperatures above 60degC, further monitoring is advisable.
What sizes and forms are available for Monel 400 pipes and tubes?
Monel 400 pipes are offered 1/8″ NPS to 48″ NPS (OD 4 mm to 1219 mm), in SCH 5S to SCH 160 and XXH. Wall sizes vary between 0.5 mm and 20 mm and include seamless, welded, ERW, and EFW round and square and rectangular sections.
What is the price of Monel 400 pipe per kg in India?
Indian Monel 400 pipeline price per kilogram depends on the OD, wall thickness, schedule, surface finish, quantity and the LME nickel/copper rates. Indicative range of SCH 40 seamless (small-bore) INR 2800-5500/kg ex-Mumbai. Current confirmed quote Kalpataru Piping, contact them.
Can Monel 400 pipes and tubes be welded?
Yes. GTAW, GMAW and SMAW procedures can be used to weld monel 400. There is no post-weld heat treatment standard service. ErniCu-7 filler wire is suggested.
What standards do Monel 400 pipes and tubes comply with?
Monel 400 pipes and tubes are based upon ASTM B165 / ASME SB165 (seamless), ASTM B725 / ASME SB725 (welded pipe), ASTM B730 (welded tube), and AMS 4574 (aerospace tube). Mechanical properties and chemical composition meet the UNS N04400 / DIN 2.4360.
What is ASTM B730 and when does it apply?
ASTM B730 is welded nickel-copper alloy (Monel 400) tubes in general corrosion-resistant service. It is used when the end-use specification requires welded (not seamless) Monel 400 tubing, normally in heat exchangers and condensers.
What is AMS 4574 and when is it required?
Aerospace Material Specification Aerospace Material Specification 4574 Aerospace fuel, hydraulic, and pneumatic systems Monel 400 seamless and welded tubing is specified as Aerospace Material Specification 4574. When application is aerospace or defence and project tighter dimensional tolerances and more traceability documentation are needed, specify AMS 4574.
Specify a project?
Our technical team can advise on grade, schedule, and standard selection before you commit to an order.
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