01
Hastelloy B-3 Round Bar
Solid rounds inside the 7.94–88.9 mm window serve welded reactor internals, absorption pump shafts and machined acid-plant parts.
View Hastelloy B-3 Round Bar →Hastelloy B-3 Bar and Rod
Nickel-molybdenum bar that holds its ductility after welding heat, for reducing-acid parts built by fabrication.
Stability Margin Explained
The page sets out the chromium window that slows Ni4Mo ordering, so the trade against price stays visible.
Welding Route Confirmed First
Consequently, we settle whether the part sees fabrication heat before the offer leaves the desk.
Rod Sizes Inside the Standard
Every diameter we quote sits inside the 7.94 to 88.9 mm window ASTM B335 defines.
PRODUCT OVERVIEW
About Hastelloy B-3 Bar and Rod
Hastelloy B-3 Bar and Rod carries the UNS N10675 grade, a nickel-molybdenum alloy with a deliberate chromium addition. Chromium between 1 and 3% slows the ordered phases that embrittle earlier B-type grades. Therefore, a part exposed to welding heat keeps far more of its ductility.
Fabrication decides the value here, so the form pages carry the ordering detail. The bar range sits beside Hastelloy B-3 Pipe and Tube and Hastelloy B-3 Plate and Sheet in the same melt. The alloy background and the corrosion envelope sit on the Hastelloy B-3 hub page.
PRODUCT FEATURES
Key Features of Hastelloy B-3 Bar and Rod
Hastelloy B-3 bar and rod carries the UNS N10675 grade, a nickel-molybdenum alloy with chromium between 1 and 3 percent. That window slows Ni4Mo ordering, so a machined or welded part keeps its toughness where earlier B-type grades would not. The chemistry resists hydrochloric and sulfuric acid while the stream reduces, and it refuses oxidants. Southerly Alloy works as a professional supplier and exporter of UNS N10675 bar to ASTM B335, with larger sections supplied as forged bar to ASTM B564.
Hastelloy B-3
Fabrication-Heat Tolerance
The chromium window slows ordering, so a welded joint keeps more ductility than earlier B-type grades hold.
01
Sizes Inside the Rod Range
Every diameter we quote sits between 7.94 and 88.9 mm, which is where ASTM B335 ends.
02
Above-Range Supply Route
Anything past the rod ceiling comes as forged bar, quoted to ASTM B564.
03
Hydrochloric Service Duty
Molybdenum between 27 and 32% carries the resistance while the stream stays reducing.
04
Sulfuric and Formic Coverage
In addition, non-oxidizing sulfuric, formic, and acetic media sit inside the working envelope.
05
Acid-Plant Machining
Drawing and peeling deliver the diameter control that pump shafts and valve trim need.
06
Strength Without Aging
No aging treatment exists, so drawing alone raises yield above the annealed floor.
07
Oxidant Exclusion
Nitric acid, hypochlorite, and wet chlorine destroy the low-chromium surface, so those duties need another alloy.
08
WHY CHOOSE US
Why Choose Hastelloy B-3
Fabrication heat is the first thing we ask about on a B-3 bar enquiry, because it decides which certificate set you need. Size and paperwork follow from there. Meanwhile, the stock range keeps the common acid-plant diameters on the shelf.
01
Fabrication Questions First
We ask about welding and forming heat before quoting, so the offer matches the route you will actually run.
02
Certificates Linked to One Heat
Every report names the melt, and the cooling log sits beside the tensile results.
03
Section and Length to Order
Drawing, peeling, grinding, and cut-to-length reach sections outside the stocked range.
04
Crated for the Voyage
We protect the bar ends, then quote FOB, CIF, or DAP against the port you name.
MANUFACTURING PROCESS
Reliable Production For Critical Applications
A narrow chemistry window is what separates this grade from earlier B-type alloys. Therefore, the melt shop treats every lot to a full solution anneal followed by a fast water quench.
01
Charge Compounding
Nickel, molybdenum, and chromium reach the furnace in weighed lots.
02
Melt Refining
Refining keeps carbon and silicon low enough to protect weld-zone corrosion resistance.
03
Hot Reduction
Forging hammers and rolling mills reduce the ingot to the ordered section.
04
Solution Annealing
A furnace pass near 1066 °C dissolves any ordered phase that formed earlier.
05
Rapid Quenching
The bar enters the quench tank while still hot, which locks the single-phase structure.
06
Cold Finishing
The finishing line draws, peels, or grinds the bar down to size.
07
Descaling
An acid pickle strips mill scale so the surface is ready for machining.
08
Release Testing
The lab signs off chemistry, tensile properties, and dimensions before dispatch.
Manufacturing Facility
MANUFACTURING CAPABILITY
Advanced Production For Nickel Alloy Products
Bar output draws on the same melt shop, quench tank, and finishing bays as our other corrosion-resistant grades. Therefore, a stocked diameter usually leaves without waiting for a furnace campaign.
20,000+ m²
Plant Footprint
One site holds the melt shop, the quench tank, and the finishing bays.
50+
Bar Line Equipment
Hot working, drawing, and grinding machines form the installed base.
600 Tons
Monthly Output
Stocked diameters and custom melts draw on the same campaign.
30+
Engineers and Metallurgists
Fabrication heat and acid duty reach a specialist before release.
QUALITY ASSURANCE
Strict Quality Control From Production To Delivery
Release rests on evidence rather than assumption. Chemistry runs against the N10675 window, and mechanical results follow the condition you ordered.
01
Spectrometry Against N10675
The lab reads molybdenum, chromium, and carbon, then compares them with the ASTM limits.
02
Mechanics on the Shipped Condition
Tensile and yield figures come from the bar you actually receive, with any hardness reading reported as information.
03
Dimensional and Surface Checks
The inspection bay measures diameter, straightness, and surface state before packing.
04
Cooling Record Attached
The heat number on the certificate points back to the annealing and quench log.
PRODUCT FORMS
Available Product Forms
Bar and rod enquiries for this grade usually name a form before a size. Therefore, the twelve pages below set out the section range, the delivery condition and the document route behind each one. Above all, we fix the machining allowance with the order.
02
Hastelloy B-3 Round Rod
Smaller drawn stock with controlled straightness fits column tie rods, seal carriers and instrument studs.
View Hastelloy B-3 Round Rod →
03
Hastelloy B-3 Bright Bar
A turned, peeled or ground skin suits automatic lathes producing hydrogen chloride synthesis parts.
View Hastelloy B-3 Bright Bar →
04
Hastelloy B-3 Cold-Drawn Bar
Higher proof stress from the as-drawn condition, straightened where a tight runout matters.
View Hastelloy B-3 Cold-Drawn Bar →
05
Hastelloy B-3 Hex Bar
Sections sized across flats serve multi-flat valve components and acid-plant bolting.
View Hastelloy B-3 Hex Bar →
06
Hastelloy B-3 Square Bar
Squares cut to side and length carry frames and fabricated fixtures in reducing-acid plants.
View Hastelloy B-3 Square Bar →
07
Hastelloy B-3 Flat Bar
Rectangular sections to thickness and width serve tank stiffeners and distributor supports.
View Hastelloy B-3 Flat Bar →
08
Hastelloy B-3 Forged Bar
Open-die work covers valve bodies and tube sheets past the 88.9 mm rod ceiling under ASTM B564.
View Hastelloy B-3 Forged Bar →
09
Hastelloy B-3 Centreless-Ground Rod
Ground diameter and roundness held for acid pump spindles and metering plungers.
View Hastelloy B-3 Centreless-Ground Rod →
10
Hastelloy B-3 Threaded Rod
Threads cut or rolled after the solution anneal, certified to ASTM B335 with the class and gauging recorded.
View Hastelloy B-3 Threaded Rod →
11
Hastelloy B-3 Wire
Fine and spring-temper wire to DIN 17753 for demister pads, filtration mesh and springs.
View Hastelloy B-3 Wire →
12
Hastelloy B-3 Welding Wire
ERNiMo-10 bare wire and ENiMo-10 electrodes that carry the reducing-acid performance of the parent metal into a repair.
View Hastelloy B-3 Welding Wire →
APPLICATIONS
Engineered For Demanding Industries
A welded vessel that cannot be re-annealed carries the strongest case for this grade. Meanwhile, machined parts also benefit wherever fabrication heat is unavoidable.
Discuss Your Application →
01
Welded Reactor Internals
Baffles, dip tubes, and agitator shafts turned from bar for welded vessels.
02
Hydrochloric Acid Hardware
Valve trim and pump parts in HCl up to boiling.
03
Sulfuric Acid Fittings
Shafts and transfer fittings in reducing sulfuric acid circuits.
04
Acetic Acid Plant
Machined parts for reactor internals and column hardware.
05
Herbicide and Insecticide Units
Components handling hydrochloric acid as a reactant or a by-product.
06
Pickling Line Fixtures
Racks, hooks, and immersion hardware in hydrochloric pickling.
07
Heat-Exchanger Hardware
Baffle bars and tie rods for reducing-side exchangers.
08
Pressure Vessel Internals
Forged and rolled bar for vessels built to ASME SB335.
TECHNICAL INFORMATION
Technical Specifications
Detailed technical information including chemical composition, mechanical properties, standards and available dimensions.
Chemical Composition
The limits below follow ASTM B335 for UNS N10675 rod. Chromium between 1 and 3% is the deliberate addition behind the grade, and nickel plus molybdenum carries the corrosion duty. The mill certificate governs final acceptance.
| Element | Content |
|---|---|
| Nickel (Ni) | 65.0% min. |
| Molybdenum (Mo) | 27.0–32.0% |
| Chromium (Cr) | 1.0–3.0% |
| Iron (Fe) | 1.0–3.0% |
| Tungsten (W) | 3.0% max. |
| Cobalt (Co) | 3.0% max. |
| Manganese (Mn) | 3.0% max. |
| Carbon (C) | 0.01% max. |
| Silicon (Si) | 0.10% max. |
| Phosphorus (P) | 0.030% max. |
| Sulfur (S) | 0.010% max. |
| Vanadium (V) | 0.20% max. |
| Aluminum (Al) | 0.50% max. |
| Titanium (Ti) | 0.20% max. |
| Copper (Cu) | 0.20% max. |
| Columbium (Nb) | 0.20% max. |
| Tantalum (Ta) | 0.20% max. |
| Zirconium (Zr) | 0.10% max. |
| Nickel plus Molybdenum | 94.0–98.0% |
Mechanical Properties
The rod standard sets one annealed condition across its whole size range. As a result, the same minimums govern every diameter between 7.94 and 88.9 mm. Besides, the mechanical table of ASTM B335 writes its hardness cell without a figure against UNS N10675, so no hardness acceptance value exists for this grade.
| Condition | Tensile Strength | Yield Strength, 0.2% Offset | Elongation |
|---|---|---|---|
| Rod, ASTM B335, solution annealed | ≥110 ksi (760 MPa) | ≥51 ksi (350 MPa) | 40% |
| Forged bar, ASTM B564, solution annealed | ≥110 ksi (760 MPa) | ≥51 ksi (350 MPa) | 40% |
The grade is not age hardenable, so cold work is the only route above those floors. Annealed bar typically reaches about 125 ksi tensile with 50% elongation, well clear of the minimums. Consequently, any hardness figure we report on a certificate is offered as information rather than as an acceptance requirement.
Physical Properties
Typical room-temperature values below support design work rather than acceptance testing. In addition, the alloy stays essentially non-magnetic in the annealed condition.
| Property | Value |
|---|---|
| Density | Approx. 9.22 g/cm³ |
| Melting range | Approx. 1370–1418 °C |
| Modulus of elasticity | Approx. 216 GPa |
| Modulus of rigidity | Approx. 83 GPa |
| Thermal conductivity at 20 °C | Approx. 11.2 W/m·K |
| Electrical resistivity at 20 °C | Approx. 1.37 µΩ·m |
| Thermal expansion, 25–100 °C | Approx. 10.6 µm/m·K |
| Magnetic behaviour | Essentially non-magnetic in the annealed condition |
| Strengthening route | Cold work only |
Standards
ASTM B335 covers rod, and the ASME edition takes over wherever pressure equipment applies. Specifically, that document reaches from 7.94 to 88.9 mm, and no ASTM bar standard runs beyond it. Meanwhile, the designations below identify the same melt.
| Standard | Product or Application |
|---|---|
| ASTM B335 / ASME SB335 | Nickel-molybdenum alloy rod, 7.94–88.9 mm |
| ASTM B564 / ASME SB564 | Forgings and forged bar beyond the rod range |
| ASTM B333 / ASME SB333 | Plate, sheet, and strip in the same grade |
| ASTM B622 / ASME SB622 | Seamless pipe and tube |
| ASTM B619 / ASME SB619 | Welded pipe |
| ASTM B626 / ASME SB626 | Welded tube |
| ASTM B366 / ASME SB366 | Factory-made wrought fittings |
| ASTM B462 | Forged or rolled flanges and forged fittings |
| DIN 17752 / 17753 / 17754 | Bar, wire, and forging stock |
| ISO 9723 / 9724 / 9725 | Bar, wire, and forgings |
| UNS N10675 | Unified Numbering System designation |
| W.Nr. 2.4600 / NiMo29 | European designation for Alloy B-3 |
| GB/T 15007 NS3203 | Chinese designation |
| SAE AMS | No aerospace specification covers this grade |
The rod document comes from ASTM International, and its text settles any acceptance question.
Dimensions
Sizes below stay inside the window the rod specification defines. Consequently, anything beyond 88.9 mm moves to the forging document, and we say so at quotation.
| Product Form | Typical Supply | Length |
|---|---|---|
| Round Bar | 7.94–88.9 mm dia., solution annealed to ASTM B335 | Cut to length or random |
| Hex Bar | 7.94–88.9 mm across flats | Cut to length or random |
| Square Bar | 7.94–88.9 mm | Cut to length or random |
| Cold-Drawn Bar | 7.94–88.9 mm dia., as-drawn or stress relieved | Cut to length |
| Centerless-Ground Rod | 7.94–88.9 mm dia., tight tolerance | Cut to length |
| Flat Bar | Rectangular sections agreed at quotation | Cut to length |
| Forged Bar | Above 88.9 mm dia. or shaped section, to ASTM B564 | Cut to length |
Surface Finishes
Finish follows the next operation rather than a catalog default. In short, we agree it with the order so the surface suits the machining you have planned.
| Surface Condition | Typical Use |
|---|---|
| Solution annealed and pickled | Standard delivery for reducing-acid service |
| Hot-worked | Parts that will be machined to size |
| Cold drawn | Close diameter control with a brighter surface |
| Peeled | Uniform diameter with a machined skin for further turning |
| Centerless ground | Tight diameter and straightness for shafting |
| Polished | Reduced roughness for product-contact and visible parts |
| Rough turned | Machining allowance held 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 8 Simple Steps
A single coordinator follows your B-3 order from the first enquiry to the last shipping paper. Nothing moves until the fabrication route and the heat treatment agree.
1
Send the Medium and Sizes
Give the acid, its strength, the diameter, and the quantity.
2
Describe the Fabrication
Tell us whether the part sees welding, forming, or machining heat.
3
Agree the Condition
We fix solution-annealed, cold-drawn, or forged against that route.
4
Read the Offer
Price, lead time, and the certificate set reach you together.
5
Lock the Specification
Grade, size, inspection level, and delivery terms go on record first.
6
Produce and Test
The mill melts, anneals, quenches, and tests the heat against your order.
7
Release and Pack
Export papers and certificates follow the bar under the agreed terms.
8
Confirm Delivery
Finally, the desk tracks the load and mails the papers before it docks.
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 Hastelloy B-3 bar and rod?
B335 and ASME SB335, and the size ceiling in that document sits at 88.9 mm.
What happens above that size range?
Those diameters move to the forging route, so we quote them as B564 material.
Does Hastelloy B-3 bar stay ductile after welding?
Usually yes. Chromium between 1 and 3% slows Ni4Mo ordering, which is what the grade was developed for.
Can Hastelloy B-3 bar handle hydrochloric acid?
Yes, at every concentration up to boiling, provided the stream stays free of oxidant.
Which filler metal suits Hastelloy B-3 welding?
Matching ERNiMo-10 filler to AWS A5.14, or ENiMo-10 covered electrodes to AWS A5.11.
What is your MOQ for Hastelloy B-3 bar?
A single bar covers most stocked diameters.
What are your trade terms for Hastelloy B-3 bar?
We quote FOB as standard, then add EXW or CIF once you name a port.
How is the price of Hastelloy B-3 bar calculated?
Weight drives the figure, and the nickel share is fixed on the order date.
What is the lead time for Hastelloy B-3 bar?
Stocked diameters go out in 7-15 days, and made-to-order annealed bar takes about 25 days.
Do you provide EN 10204 3.1 or 3.2 certificates?
Yes. Every lot carries a 3.1 certificate, and we arrange 3.2 endorsement on request.
REQUEST FOR QUOTATION
Need A Custom Alloy Solution?
Give us the medium, the diameters, and the quantity you need. Tell us whether the part sees welding or forming heat, because that decides the certificate set. Price, lead time, and the papers then reach you together.
Trial bars are welcome, and one piece of most stock diameters proves the finish before a plant-wide order.
