01
Monel 400 Hot-Worked Round Bar
As-rolled rounds for parts that will be machined to final size.
Request Availability →Monel 400 Round Bar
Monel 400 round bar to ASTM B164 for seawater pump shafts, HF alkylation hardware and marine bolting.
Seawater and HF Duty Stock
We hold this Monel 400 round bar for alkylation, marine and brine work where 300-series stainless pits or cracks.
Strength from Cold Work Alone
Specifically, this Monel 400 round bar cannot be age hardened, so a heavier drawing pass rather than a heat treatment raises its yield.
Documents Matched to the Order
Moreover, the mill certificate, hardness records and export papers for this Monel 400 round bar reach you as one set.
PRODUCT OVERVIEW
About Monel 400 Round Bar
Monel 400 round bar arrives in UNS N04400, the solid-solution nickel-copper alloy holding nickel at 63% and above. Flowing seawater, hydrofluoric acid and strong alkali leave this Monel 400 round bar intact where stainless grades pit or crack.
We supply Monel 400 round bar to ASTM B164 and ASME SB164 in hot-worked, annealed, stress-relieved and cold-drawn conditions. Your order for this Monel 400 round bar carries heat-number records and EN 10204 3.1 paperwork for goods-in checks. Besides, diameter, condition and finish on the round bar are agreed before the heat is booked.
Meanwhile, the chemistry and the design values behind Monel 400 round bar sit on our Monel 400 material page for cross-reference.
PRODUCT FEATURES
Key Features of Monel 400 Round Bar
Monel 400 round bar arrives in UNS N04400, the solid-solution nickel-copper alloy that holds nickel at 63% and above. We provide ASTM B164 and ASME SB164 round bar in hot-worked, annealed, stress-relieved and cold-drawn conditions, cut to length for marine yards, alkylation units and brine plant. Every Monel 400 round bar order carries heat-number traceability, EN 10204 3.1 mill test reports and full export documentation.
Monel 400
Flowing-Seawater Resistance
For example, this Monel 400 round bar keeps a clean surface 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 Monel 400 round bar, so design drain-and-flush paths.
02
Hydrofluoric-Acid Capability
Besides, this Monel 400 round bar handles hydrofluoric acid across all concentrations, a niche few stainless or nickel grades share.
03
Alkali and Salt Duty
In turn, strong caustic and acid-salt streams suit this Monel 400 round bar, so brine hardware holds tolerance longer.
04
Strength from Cold Work
Cold drawing lifts the yield of this Monel 400 round bar from the 25 ksi annealed floor toward 85 ksi in light sections.
05
No Age Hardening
Specifically, this Monel 400 round bar cannot be precipitation hardened, so cold work sets the strength ceiling.
06
Cryogenic Ductility
Moreover, impact strength in this Monel 400 round bar stays flat through sub-zero and cryogenic plant.
07
Welding Without Post-Weld Anneal
Finally, ERNiCu-7 filler joins this Monel 400 round bar with no post-weld heat treatment.
08
WHY CHOOSE US
Why Choose Monel 400
Buying Monel 400 round bar starts with the seawater or acid duty your shaft will meet. Besides, we fix the condition, diameter and finish of this Monel 400 round bar before we quote.
01
Duty Read Before Pricing
We record the seawater, acid or alkali conditions your Monel 400 round bar will meet before proposing a delivery condition.
02
Certificates Tied to the Heat
Specifically, EN 10204 3.1 papers, heat numbers and PMI records follow each Monel 400 round bar delivery.
03
Trial Pieces and Container Lots
In addition, this Monel 400 round bar moves through one route whether you need a single length or a full container.
04
Terms Stated in Writing
Quotations for this Monel 400 round bar name the condition, section, finish and document set instead of leaving them open.
MANUFACTURING PROCESS
Reliable Production For Critical Applications
Bar production for Monel 400 round bar runs from charge weighing to final packing. Our team logs each stage of this Monel 400 round bar route against its heat number.
01
Charge Weighing
We weigh refined nickel and cathode copper so this Monel 400 round bar melts inside the 28.0–34.0% copper window.
02
Melting and Refining
First, the charge for this Monel 400 round bar melts and refines under controlled practice.
03
Ingot Casting
Next, this Monel 400 round bar casts into ingots under controlled solidification.
04
Hot Reduction
Then, forging and rolling reduce the ingot to this Monel 400 round bar section.
05
Skin Removal
After that, peeling and grinding strip surface defects from this Monel 400 round bar.
06
Condition Heat Treatment
Subsequently, annealing or stress relief sets the ordered condition of this Monel 400 round bar.
07
Cold Finishing
We then draw, turn or grind this Monel 400 round bar to the ordered size and finish.
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Testing and Release
Finally, chemistry, tensile and dimensional checks clear this Monel 400 round bar for dispatch.
Manufacturing Facility
MANUFACTURING CAPABILITY
Advanced Production For Nickel Alloy Products
Stock lengths and made-to-order lots of Monel 400 round bar leave on one schedule. Moreover, we confirm section and finish of this Monel 400 round bar before release. Besides, this Monel 400 round bar sits inside our Monel 400 bar and rod program.
20,000+ m²
Factory Area
Specifically, melting, forging, drawing and inspection halls serve Monel 400 round bar under one roof.
50+
Production Machines
Equipment covering hot working, annealing and cold finishing for this Monel 400 round bar.
600 Tons
Monthly Capacity
Monel 400 round bar output across stock and made-to-order sizes.
30+
Technical Engineers
Metallurgists who set the condition and document scope of this Monel 400 round bar against your duty.
30+ Countries
Export Reach
In addition, documented logistics carry this Monel 400 round bar worldwide.
QUALITY ASSURANCE
Strict Quality Control From Production To Delivery
No Monel 400 round bar leaves the yard before its heat has cleared our ISO 9001 inspection route. In addition, we check this Monel 400 round bar against the chemistry, mechanical properties, dimensions and surface the order names.
01
Heat Identification
We confirm the grade and heat number of this Monel 400 round bar against your purchase order.
02
Dimensional Verification
Specifically, the size, length and straightness of this Monel 400 round bar go against standard and drawing tolerances.
03
Property Testing
In addition, tensile, hardness and NDT checks run wherever your Monel 400 round bar specification requires them.
04
Certificate Assembly
Every consignment of this Monel 400 round bar carries EN 10204 3.1 documents keyed to the heat number.
PRODUCT FORMS
Available Product Forms
Conditions and variants of Monel 400 round bar cover different machining and service needs. In addition, the list below sets out the Monel 400 Round Bar variants we quote most often.
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Monel 400 Annealed Round Bar
Softened rounds for heavy machining and cold forming.
Request Availability →
03
Monel 400 Stress-Relieved Round Bar
Rounds relieved at low temperature so straightness survives machining.
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04
Monel 400 Cold-Drawn Round Bar
Drawn rounds carrying higher yield than the annealed floor.
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05
Monel 400 Peeled Round Bar
Peeled rounds with a machined skin and uniform diameter for turning.
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06
Monel 400 Forged Round Bar
Heavy forged rounds carrying a controlled wrought structure.
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07
Monel 400 Custom Round Bar
Custom diameters, lengths and conditions produced to your drawing.
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APPLICATIONS
Engineered For Demanding Industries
Monel 400 round bar is chosen where seawater, hydrofluoric acid or strong alkali decides component life. In addition, the applications below show where this Monel 400 round bar serves.
Discuss Your Application →
01
Monel 400 Seawater Pump Shafts
Shafts and sleeves turning in flowing seawater without pitting.
02
Monel 400 HF Alkylation Hardware
Stems, plugs and fittings inside hydrofluoric acid alkylation units.
03
Monel 400 Marine Propeller Shafting
Shaft stock for workboats and dockside equipment in salt water.
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Monel 400 Valve and Pump Trim
Stems and impellers running in reducing and alkaline process media.
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Monel 400 Heat-Exchanger Tie Rods
Rods holding tube bundles and baffles inside seawater exchangers.
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Monel 400 Brine Evaporator Parts
Shafts and fittings inside salt concentration and crystallizer plant.
07
Monel 400 Sour-Service Bolting Stock
Bar turned into wellhead fasteners under an agreed hardness ceiling.
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Monel 400 Hygienic Mixer Shafts
Mixer shafts and clean-face parts for food and pharmaceutical plant.
TECHNICAL INFORMATION
Technical Specifications
Detailed technical information including chemical composition, mechanical properties, standards and available dimensions.
Chemical Composition
UNS N04400 carries nickel as its balance and holds copper inside a 28.0% to 34.0% window, so every heat record for this round bar prints a copper figure rather than a grade name. Besides, that window is what keeps the seawater and acid behaviour of this round bar repeatable from heat to heat.
For the full element-by-element limit set, open the composition breakdown held on the Monel 400 material page for this round bar.
Mechanical Properties
The minimum room-temperature values below apply to UNS N04400 bar in the hot-worked, annealed, stress-relieved and cold-worked conditions per ASTM B164. Consequently, condition and section size govern final acceptance of Monel 400 round bar.
| Condition and 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 ASTM B164 acceptance, so the tensile minimums and the ordered edition decide the release, and the section size narrows which row applies.
Physical Properties
Published references place this round bar at a density near 8.80 g/cm³ with a melting range of 1300–1350 °C. In addition, the Curie range sits just above ambient, so a round bar behaves as a weakly magnetic material near room temperature.
Meanwhile, the physical properties table on the Monel 400 material page holds the thermal conductivity, the electrical resistivity and the remaining design values behind this round bar.
Heat Treatment
Monel 400 round bar softens by annealing and straightens by a low-temperature relief rather than by aging. In addition, we supply this Monel 400 round bar in whichever condition your duty calls for.
| Condition | Typical Treatment |
|---|---|
| Annealed | Held between 870 and 980 °C (1600–1800 °F), then cooled |
| Stress Relieved | 300–320 °C (570–610 °F) for about one hour, then air cooled |
| Custom Condition | Heat treatment according to the agreed specification |
Standards
ASTM B164 is the principal UNS N04400 bar and rod document for this round bar, published by ASTM International. Moreover, ASME SB164 covers pressure equipment built from this round bar, and AMS 4675 reaches its bar, forging and ring forms.
| Standard | Product or Application |
|---|---|
| ASTM B164 | Nickel-copper rod, bar and wire, UNS N04400 |
| ASME SB164 | ASME counterpart for pressure equipment |
| AMS 4675 | Bars, forgings and rings of this grade |
Finally, the full standards list on the Monel 400 material page adds the European designations, the defence documents and the fastener specifications behind this round bar.
Dimensions
Dimensions of Monel 400 round bar follow the manufacturing route, the standard and the order quantity. Therefore, the table below lists typical supply ranges, so please confirm your size in the inquiry.
| Product Form | Typical Supply | Length |
|---|---|---|
| Round Bar | 6–500 mm dia. | Cut to length or random |
| Hot-Worked Round Bar | 25–305 mm dia. | Cut to length or random |
| Annealed Round Bar | 6–300 mm dia. | Cut to length |
| Stress-Relieved Round Bar | 12.7–88.9 mm dia. | Cut to length |
| Cold-Drawn Round Bar | 6–100 mm dia. | Cut to length |
| Peeled Round Bar | 20–400 mm dia. | Cut to length |
| Forged Round Bar | 100–500 mm dia. | Cut to length |
| Custom Round Bar | To drawing | Custom |
Available sizes of this Monel 400 round bar depend on the manufacturing route, the standard, the material condition and the order quantity. Please confirm your required round bar size, section and length in the inquiry.
Surface Finishes
Finish decides what the next operation does to this material, whether that is a turning pass, a grinding pass or a welding cell. Specifically, we agree the finish on this Monel 400 round bar before we release the order.
| Surface Condition | Typical Use |
|---|---|
| Hot-Worked | As-rolled or as-forged surface on this round bar, for parts that will be machined all over. |
| Annealed and Pickled | Annealing followed by acid descaling leaves this round bar scale-free for fabrication. |
| Stress Relieved | A low-temperature relief pass on this round bar that holds straightness without softening it. |
Meanwhile, the surface finishes table on the Monel 400 material page lists the remaining conditions we quote for this round bar.
Related forms from the same heat cover Monel 400 Round Rod, Monel 400 Square Bar and Monel 400 Threaded Rod when your round bar order needs them.
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
One coordinator carries your Monel 400 round bar order from first question to loading. Therefore, most orders for this Monel 400 round bar move from quotation to dispatch inside three weeks.
1
Send the Duty Data
Give the size, quantity, standard and the seawater or acid duty your Monel 400 round bar will see.
2
Fix the Condition
Then we set the delivery condition and tolerance for this Monel 400 round bar.
3
Review the Offer
Receive pricing for this Monel 400 round bar by dimension, quantity and destination port.
4
Approve the Order
Approve the specification, terms and schedule for this Monel 400 round bar in writing.
5
Witness Points Agreed
Any third-party inspection of this Monel 400 round bar is booked before production starts.
6
Dispatch and Documents
Receive this Monel 400 round bar with the mill certificate, packing list and shipping papers.
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 standard covers this Monel 400 round bar?
ASTM B164 and ASME SB164 govern this Monel 400 round bar for UNS N04400 across round, square, hex and rectangular sections.
Is this Monel 400 round bar suitable for seawater?
Yes. This round bar performs well in flowing seawater, although stagnant water and silt traps raise the pitting risk on this Monel 400 round bar.
Can this Monel 400 round bar be age hardened?
No. This round bar is a solid-solution alloy, so cold work raises its strength and the K-500 grade covers aged duty instead.
Can this Monel 400 round bar be machined and welded?
Yes. This round bar machines to a clean finish, and GTAW with ERNiCu-7 filler joins it without a post-weld anneal.
How is the price of this Monel 400 round bar calculated?
Pricing follows weight for this Monel 400 round bar, with the nickel and copper quotations fixed on the date you receive the offer.
What is your MOQ for this Monel 400 round bar?
A single piece covers many common sizes of this Monel 400 round bar.
What are your trade terms for this Monel 400 round bar?
FOB covers most orders for this Monel 400 round bar, and EXW or CIF terms are available when you ask.
What is the lead time for this Monel 400 round bar?
Stock sizes of this Monel 400 round bar dispatch in 7 to 15 days, while made-to-order sections take longer.
Do you provide EN 10204 3.1 or 3.2 certificates for this Monel 400 round bar?
Yes. Every heat of this Monel 400 round bar ships with 3.1, and a 3.2 endorsement is booked through the order.
What information should an enquiry for this Monel 400 round bar include?
Please send the grade, section, diameter, length, condition, finish, quantity and destination so we can quote this Monel 400 round bar accurately.
REQUEST FOR QUOTATION
Need A Custom Alloy Solution?
Monel 400 round bar from Southerly Alloy covers stock and made-to-order diameters to ASTM B164. Send the diameter, condition, length and destination port, and we return pricing for this Monel 400 round bar.
Specifically, we review your Monel 400 round bar specification, confirm the condition and document scope, and return pricing with clear terms. Production then follows the signed specification, and each consignment of this Monel 400 round bar ships with the full paperwork set.
