01
Monel 400 Round Bar
Solid sections from 6 to 500 mm serve shafts, stems, and machined fittings.
View Monel 400 Round Bar →Monel 400 Bar and Rod
Nickel-copper bar and rod for seawater pumps, fasteners, and chemical plant shafting in four delivery conditions.
Copper Band on the Certificate
Every heat record prints copper inside the 28.0–34.0% window, so your incoming check reads figures instead of a grade name.
Bolting Evidence on Request
Because F467 and F468 projects need hardness proof, we add per-heat hardness figures to the release file whenever you ask.
Condition Fixed at the Melt
Moreover, we write hot-worked, annealed, stress-relieved, or cold-drawn delivery into the melt plan before production starts.
PRODUCT OVERVIEW
About Monel 400 Bar and Rod
Monel 400 bar and rod serve pumps, shafts, and bolting where seawater and reducing chemicals beat stainless steel. Stock arrives in UNS N04400, a solid-solution nickel-copper alloy holding copper between 28.0 and 34.0 percent. Thus strength comes from the base metal and cold work.
Sections follow ASTM B164 and ASME SB164 across hot-worked, annealed, stress-relieved, and cold-drawn conditions. Hence the supply route matches your machining drawing instead of a fixed shelf list.
The Monel 400 grade file sits on the material hub, while tubular and flat-rolled needs land on Monel 400 Pipe and Tube and Monel 400 Plate and Sheet. Where aging raises the strength floor, we quote Monel K-500 bar as the companion grade.
Where the two nickel-copper grades need setting out side by side — solid-solution strength against aged strength — the Monel 400 and K-500 overview tabulates both.
PRODUCT FEATURES
Key Features of Monel 400 Bar and Rod
Monel 400 bar and rod arrives in UNS N04400 stock cut to ASTM B164, covering hot-worked, annealed, stress-relieved, and cold-drawn delivery from one melt route. Copper held inside the 28.0 to 34.0 percent window keeps seawater, hydrofluoric acid, and alkaline streams off the steel list. Round, hex, square, flat, and forged sections ship with EN 10204 3.1 heat records, so marine yards and chemical plants can trace every bar.
Monel 400
Flowing-Seawater Reliability
Impellers, shafts, and fasteners keep clean surfaces in moving seawater, where 300-series stainless pits within a few seasons.
01
Stagnant-Seawater Caution
However, crevices and silt traps under static conditions attack this alloy too, so design drain-and-flush paths or move to a chromium grade.
02
Hydrofluoric-Acid Capability
Besides, HF handling across all concentrations stays on this alloy, a niche few stainless or high-nickel grades share.
03
Alkaline and Salt Duty
In turn, strong caustic and acid-salt streams suit this bar, so evaporator and brine hardware holds tolerance longer.
04
Strength Through Cold Work
Cold drawing lifts yield from the 25 ksi annealed floor toward 85 ksi in light sections, without any heat treatment.
05
Cryogenic Ductility
Impact strength stays flat through sub-zero and cryogenic plant, so deep-service bolting keeps its margin.
06
Machining Without Heat Treatment
Standard carbide practice machines annealed stock, and ERNiCu-7 filler joins sections with no post-weld anneal.
07
Heat Records with Each Bundle
Finally, EN 10204 3.1 documents tie chemistry and tensile results to the heat number on every delivery.
08
WHY CHOOSE US
Why Choose Monel 400
Bar buying turns on condition control and document quality. Because we schedule each heat into the route that matches your ordered condition, promises about size and finish stay realistic. One desk follows the order from quote to loading.
01
Drawing Check Before Melt Booking
We review diameter, condition, tolerance, and finish against the B164 tables before we book a heat, so quotes reflect real capability.
02
Condition-Matched Release
We fix stress-relieved and cold-drawn stock to the ordered temper, since strength data only compares within one condition.
03
Mixed-Condition Campaigns
Moreover, single trial bars and container loads run through the same qualified nickel-copper route.
04
Quote Content You Can Audit
Finally, each quotation lists size, condition, documents, and lead time, not a bare price.
MANUFACTURING PROCESS
Reliable Production For Critical Applications
Refined nickel and cathode copper set the UNS N04400 balance at the melt. Then mechanical work and the ordered heat treatment build the final condition. Because we record each stage, the certificate retraces the whole route.
01
Charge Weighing
We weigh refined nickel and cathode copper to the 28.0–34.0% copper window, with impurity caps drawn from ASTM B164.
02
Melting
Induction or electric-arc practice melts the charge under controls that limit gas pickup and oxide content.
03
Ingot Casting
Meanwhile, solidification controls limit segregation, so each ingot machines evenly after cropping.
04
Forging and Rolling
The mill then reduces ingots to billets and bar, refining the cast structure with every pass.
05
Condition Heat Treatment
Annealing or stress relief sets the ordered condition, fixing strength, ductility, and machinability together.
06
Cold Finishing
Afterwards, drawing, peeling, or centreless grinding brings cold-drawn stock to final diameter and tolerance.
07
Surface Work
Pickling, polishing, or rough turning delivers the finish your drawing calls out.
08
Release Testing
Finally, we check chemistry, tensile, dimensions, and surface against the purchase specification before dispatch.
Manufacturing Facility
MANUFACTURING CAPABILITY
Advanced Production For Nickel Alloy Products
We produce standard and custom diameters, and we fix condition, finish, and cut length before melting. Therefore the figures below describe the capacity standing behind that promise. Mixed-condition orders run as one campaign.
20,000+ m²
Factory Area
Melting, forging, drawing, and inspection shops sit on one site.
50+
Production Machines
Hot-working, cold-finishing, and final-inspection equipment covers the bar route.
600 Tons
Monthly Capacity
The works turns out nickel-copper and nickel alloy bar across stock and custom sizes.
30+
Technical Engineers
Metallurgists set condition, tolerance, and document scope at quotation.
4
Delivery Conditions
Hot-worked, annealed, stress-relieved, and cold-drawn stock leaves one route.
QUALITY ASSURANCE
Strict Quality Control From Production To Delivery
No bar leaves the works before we demonstrate the ordered B164 requirements on its heat. Because composition, tensile, and dimensions all trace to the heat number, incoming verification stays simple.
01
Spectrometer Gate
The lab confirms melt chemistry against the B164 window before any bar enters finishing.
02
Dimensional Pass
We measure diameter, straightness, and length to the tolerance class your condition requires.
03
Condition Testing
Tensile runs on the delivered condition, and we add UT or PMI where your order specifies.
04
Traceable Release File
Finally, certificates keyed to heat numbers join every shipment for your records.
PRODUCT FORMS
Available Product Forms
Round bar and rod carry most enquiries, while square, hex, flat and forged sections cover fabrication and machining routes. In addition, the twelve forms below each have their own page with condition and tolerance detail.
02
Monel 400 Round Rod
We draw lighter diameters to controlled straightness for precision turning.
View Monel 400 Round Rod →
03
Monel 400 Square Bar
Square sections feed frames, clamps, and blocks for marine and chemical plant.
View Monel 400 Square Bar →
04
Monel 400 Hex Bar
Moreover, across-flats sizing feeds nuts, bolting, and multi-flat machining.
View Monel 400 Hex Bar →
05
Monel 400 Flat Bar
We cut rectangular sections to your width, thickness, and length.
View Monel 400 Flat Bar →
06
Monel 400 Forged Bar
Larger diameters and custom sections arrive with a controlled wrought structure.
View Monel 400 Forged Bar →
07
Monel 400 Bright Bar
Besides, cold-drawn bright stock suits automatic lathes and appearance-critical parts.
View Monel 400 Bright Bar →
08
Monel 400 Cold-Drawn Bar
As-drawn strength arrives with stress relief where straightness matters.
View Monel 400 Cold-Drawn Bar →
09
Monel 400 Centreless-Ground Rod
Ground diameter and straightness support shafting and spindle work.
View Monel 400 Centreless-Ground Rod →
10
Monel 400 Threaded Rod
Moreover, we supply studs and full-thread rod that F468 and F467 projects accept.
View Monel 400 Threaded Rod →
11
Monel 400 Wire
In addition, coil and spool wire runs from annealed to spring temper for mesh and heading.
View Monel 400 Wire →
12
Monel 400 Welding Wire
Furthermore, ERNiCu-7 rod and spool, plus ENiCu-7 electrodes, join this alloy family.
View Monel 400 Welding Wire →
APPLICATIONS
Engineered For Demanding Industries
Marine, chemical, and hydrocarbon projects place most Alloy 400 bar work. Meanwhile, fastener shops and machine houses buy rod for seawater and sour-service production runs.
Discuss Your Application →
01
Marine Shafting
Above all, propeller, pump, and rudder shafts hold finish in flowing seawater.
02
Seawater Fasteners
Shops cut studs, bolts, and nuts from bar for splash-zone and immersion duty.
03
Valve and Pump Trim
Stems, sleeves, and impellers run in reducing and alkaline media.
04
HF System Hardware
Qualified process designs specify this bar for hydrofluoric acid handling.
05
Sour-Service Components
Wellhead and valve parts in H2S duty ship with agreed hardness limits.
06
Tubesheet and Fixture Stock
Machinists turn bars into tubesheet, baffle, and fixture parts for steam plant.
07
High-Volume Rod Supply
Impellers, sleeves, and trim feed machining cells that buy rod in bulk.
08
Brine Plant Fixtures
Also, evaporator supports and fasteners resist salt concentration systems.
TECHNICAL INFORMATION
Technical Specifications
Detailed technical information including chemical composition, mechanical properties, standards and available dimensions.
Chemical Composition
The limits below restate ASTM B164 for UNS N04400 bar and rod, with nickel as the melt balance. We can melt tighter impurity caps when your specification asks. However, the mill test certificate governs acceptance.
| Element | Content |
|---|---|
| Nickel (Ni) plus Cobalt (Co) | 63.0% min. |
| Copper (Cu) | 28.0–34.0% |
| Iron (Fe) | 2.5% max. |
| Manganese (Mn) | 2.0% max. |
| Carbon (C) | 0.30% max. |
| Silicon (Si) | 0.50% max. |
| Sulfur (S) | 0.024% max. |
Mechanical Properties
We read the minimums below from the ASTM B164 tables, and they move with condition and section size. Stress-relieved figures cover 12.7–88.9 mm rounds, while as-worked values apply under 12.7 mm. Therefore confirm the ordered condition before you compare quotes.
| Condition / Section | Tensile Strength, min. | Yield Strength (0.2%), min. | Elongation, min. |
|---|---|---|---|
| Hot-worked, rounds to 305 mm (12 in.) | ≥80 ksi (552 MPa) | ≥40 ksi (276 MPa) | 30% |
| Hot-worked, annealed, all sizes | ≥70 ksi (480 MPa) | ≥25 ksi (170 MPa) | 35% |
| Cold-worked, stress-relieved, rounds 12.7–88.9 mm (1/2–3-1/2 in.) | ≥87 ksi (600 MPa) | ≥60 ksi (415 MPa) | 20% |
| Cold-worked, as-worked, rounds under 12.7 mm (1/2 in.) | ≥110 ksi (760 MPa) | ≥85 ksi (585 MPa) | 8% |
Hardness plays no part in B164 acceptance, so the tensile minimums and the ordered edition decide the release.
Physical Properties
Typical room-temperature figures below support design work rather than acceptance. Monel 400 stays slightly ferromagnetic near room temperature, and its Curie range sits just above ambient.
| Property | Value |
|---|---|
| Density | Approx. 8.80 g/cm³ |
| Melting range | Approx. 1300–1350 °C |
| Modulus of elasticity | Approx. 179 GPa |
| Thermal conductivity at 20 °C | Approx. 21.8 W/m·K |
| Specific heat at 20 °C | Approx. 427 J/kg·K |
| Electrical resistivity at 20 °C | Approx. 0.51 µΩ·m |
| Thermal expansion, 20–100 °C | Approx. 13.9 µm/m·K |
| Curie temperature | Approx. 21–49 °C |
| Magnetic behaviour | Slightly ferromagnetic at ambient temperature |
Standards
ASTM B164 governs bar and rod, and ASME SB164 takes over inside pressure equipment. The designations below serve as cross-reference identifiers rather than separate approvals. Also state the standard together with condition and section in your inquiry.
| Standard / Designation | Scope |
|---|---|
| ASTM B164 | Nickel-copper alloy rod, bar and wire — UNS N04400 |
| ASME SB164 | ASME edition for rod, bar and wire |
| SAE AMS 4675 | Nickel-copper alloy bars, forgings and rings |
| UNS N04400 | Material designation for Monel 400 |
| W.Nr. 2.4360 / NiCu30Fe | European designation for Monel 400 |
| JIS NW 4400 | Japanese designation |
| BS 3076 NA13 | British nickel-copper bar standard |
| DIN 17743 / DIN 17752 | Nickel-copper wrought alloys — chemistry and bar |
Dimensions
The ranges below describe normally produced sections, and exact availability follows condition, finish, and quantity. Tolerances follow ASTM B164 for the ordered condition. Give diameter, section, length, and finish in the inquiry.
| Product Form | Typical Supply | Length |
|---|---|---|
| Round Bar | 6–500 mm dia. | Cut to length or random |
| Round Rod | 3–50 mm dia. | Cut to length |
| Bright Bar | 6–150 mm dia. | Cut to length or random |
| Square Bar | 10–150 mm | Cut to length or random |
| Hex Bar | 10–150 mm A/F | Cut to length or random |
| Flat Bar | 3–100 mm thick × 10–300 mm wide | Cut to length |
| Forged Bar | 100–500 mm dia. or forged section | Cut to length |
| Precision-Ground Rod | 3–100 mm dia., tight tolerance | Cut to length |
Sizes outside these ranges go through a production-route review before we issue a quotation.
Surface Finishes
We choose finish for the next operation, whether machining allowance, fabrication, or a finished appearance. Availability follows diameter, condition, and order quantity. Also, we agree each finish with the order rather than assume it from stock.
| Surface Condition | Typical Use |
|---|---|
| Hot-worked (as-rolled or forged) | Parts that will be machined to size |
| Annealed and pickled | Scale-free surface for fabrication |
| Cold drawn | Close diameter control with a bright surface |
| Stress relieved | Straightness and dimensional stability for drawn bar |
| Peeled | Uniform diameter with machined skin for further turning |
| Centreless ground | Tight diameter and straightness for shafting |
| Polished | Reduced roughness for product-contact and visible parts |
| Rough turned | Controlled machining allowance on large or forged bar |
TECHNICAL DOCUMENTATION
Download Technical Datasheet
Get detailed information including specifications, standards, dimensions and material properties.
HOW TO START
Start Your Order in 6 Simple Steps
A single coordinator follows your bar order from first message to loading. Also, we agree specification changes in writing before any metal is cut.
1
Send an Inquiry
State grade, B164 condition, diameter, length, quantity, and finish.
2
Route Review
We match the ordered condition and tolerance to the production route.
3
Quotation
Price, lead time, and documents arrive in one reply.
4
Order Confirmation
We record grade, dimensions, inspection level, and terms before cutting.
5
Production and Inspection
The mill then works, heat-treats, and tests the heat to the specified condition.
6
Shipment
Certificates and export papers travel with the bar, and we confirm terms with you.
What Our Clients Say
Feedback from buyers and engineers who source nickel alloy materials from Southerly Alloy.
★★★★★
“Propeller shaft blanks arrived pickled and straight, and the heat records matched our class-society review without a follow-up query.”
★★★★★
“Stress-relieved bar held straightness through our machining cycle, so the pump rebuild kept its original delivery window.”
★★★★★
“The quotation listed condition, documents, and lead time on one page, which made internal approval straightforward.”
CERTIFICATIONS & QUALITY DOCUMENTATION
Certifications & Quality Documentation
Our production and inspection processes are certified to international standards, and every delivery ships with EN 10204 3.1 mill test certificates.
ISO 9001:2015
Quality Management System
PED 2014/68/EU
Pressure Equipment Directive
ASTM / ASME
Material Standards Compliance
EN 10204 3.1
Mill Test Certificates
FAQ
Frequently Asked Questions
Which ASTM specification covers Monel 400 bar and rod?
ASTM B164 governs the bar, and ASME SB164 applies inside pressure equipment.
What is your MOQ for Monel 400 bar?
We accept a single bar for stock diameters, and larger orders follow the quotation.
What are your trade terms for Monel 400 bar?
FOB is standard, and we quote EXW or CIF on request.
How is the price of Monel 400 bar built?
By finished weight, and we fix the copper content at the quotation-day rate.
What is the lead time for Monel 400 bar?
Stock diameters ship in 7–15 days, and custom sizes take about 25 days.
Do you provide EN 10204 3.1 or 3.2 certificates?
Yes. Every heat carries 3.1, and we arrange 3.2 witness on request.
Can Monel 400 bar be supplied for fastener production?
Yes. Bar for ASTM F467 and F468 bolting ships with hardness records where the project calls for them.
Can you arrange third-party inspection or PMI?
Yes. We book PMI, hardness testing, and third-party witness with the order.
Can I get Monel 400 bar in custom diameters?
Yes. Drawing, peeling, and grinding reach diameters beyond the stock list.
What export documentation is included?
Commercial invoice, packing list, B/L, and the mill certificate travel together, and we add origin papers on request.
REQUEST FOR QUOTATION
Need A Custom Alloy Solution?
Send grade, B164 condition, diameter, quantity, and finish, and one reply returns price, lead time, and the document list. We fix specifications before production, so the bar you approve is the bar that loads.
We accept stock diameters and made-to-order sections alike, and single-bar trials run on many common sizes.
