01
Incoloy 825 Metric Threaded Rod
Rod rolled to metric coarse and fine threads through M64.
Request Availability →Incoloy 825 Threaded Rod
Incoloy 825 threaded rod to ASTM B425 for sour-service flanges, acid plant headers and seawater bolting.
One B425 Grade, One UNS
Every heat of this Incoloy 825 threaded rod reads N08825, with molybdenum and copper reported on the certificate.
Hardness Records for Sour Duty
Moreover, NACE MR0175 orders for this Incoloy 825 threaded rod carry hardness data keyed to each heat.
Anneal Range on the Record
Furthermore, the release papers record the 927–1010 °C anneal actually used for this Incoloy 825 threaded rod.
PRODUCT OVERVIEW
About Incoloy 825 Threaded Rod
Incoloy 825 threaded rod arrives in UNS N08825, the titanium-stabilised nickel-iron-chromium grade whose molybdenum and copper additions face reducing and oxidising acids. Seawater, brine and H2S-bearing streams also sit inside the envelope of this Incoloy 825 threaded rod.
We supply Incoloy 825 threaded rod to ASTM B425 and ASME SB425 in hot-worked, solution-annealed and cold-drawn conditions. Your order for this 825 threaded rod carries heat-number records, hardness papers where sour duty calls for them and EN 10204 3.1 paperwork for goods-in checks. Besides, we agree the anneal and finish on the threaded rod before we book the heat.
Meanwhile, the chemistry and the sour-service data behind Incoloy 825 threaded rod sit on our Incoloy 825 material page for cross-reference.
PRODUCT FEATURES
Key Features of Incoloy 825 Threaded Rod
Incoloy 825 threaded rod arrives in UNS N08825, the titanium-stabilised nickel-iron-chromium grade whose molybdenum and copper additions face reducing and oxidising acids. We provide ASTM B425 threaded rod fully threaded in the annealed conditions per ASTM B425 for acid plants, sour-service projects and seawater-cooled equipment. Every Incoloy 825 threaded rod order carries heat-number traceability, EN 10204 3.1 mill test reports and full export documentation.
Incoloy 825
Sulfuric and Phosphoric Acid Resistance
For example, molybdenum and copper in this Incoloy 825 threaded rod cover reducing acid streams across a wide band.
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Chloride SCC Resistance
Specifically, nickel at 38.0–46.0% keeps this Incoloy 825 threaded rod austenitic against chloride stress-corrosion cracking.
02
NACE Sour Qualification
Moreover, UNS N08825 sits inside NACE MR0175 / ISO 15156, so this Incoloy 825 threaded rod enters H2S duty with a hardness record.
03
Titanium-Stabilised Structure
Besides, titanium ties up carbon in this Incoloy 825 threaded rod, so sensitization does not follow welding.
04
Pitting and Crevice Resistance
In turn, molybdenum lifts the localised corrosion resistance of this Incoloy 825 threaded rod in seawater.
05
Cold-Work Strength
Drawing adds yield strength above the annealed floor of this Incoloy 825 threaded rod where shafts need it.
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Weldable Without Post-Weld Heat Treatment
Standard arc practice on this Incoloy 825 threaded rod clears most fabrications without any furnace pass.
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Non-Magnetic Behaviour
Finally, this Incoloy 825 threaded rod stays non-magnetic below −196 °C for magnetically sensitive assemblies.
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WHY CHOOSE US
Why Choose Incoloy 825
The medium fixes the thread route before anything else in Incoloy 825 threaded rod. Therefore, we agree the thread class, the hardness record and the NACE basis for this 825 threaded rod before quoting.
01
Duty Read Before Pricing
We record the medium, concentration and temperature your Incoloy 825 threaded rod will meet before proposing a delivery condition.
02
Certificates Tied to the Heat
Specifically, EN 10204 3.1 papers, heat numbers and hardness records follow each Incoloy 825 threaded rod delivery.
03
Trial Pieces and Container Lots
In addition, this Incoloy 825 threaded rod flows through one route whether you order one length or a container lot.
04
Terms Stated in Writing
Quotations for this Incoloy 825 threaded rod name the medium, section, finish and document set instead of leaving them open.
MANUFACTURING PROCESS
Reliable Production For Critical Applications
Bar production for Incoloy 825 threaded rod runs from charge weighing to final packing. Our team logs each stage of this 825 threaded rod route against its heat number.
01
Charge Weighing
We start from electrolytic nickel, chromium, iron, molybdenum and copper and hold this 825 threaded rod to the B425 analysis.
02
Melting and Refining
First, the charge for this Incoloy 825 threaded rod melts and refines under AOD practice that holds carbon low.
03
Titanium Stabilisation
Next, titanium joins the melt of this Incoloy 825 threaded rod so carbon stays tied up against intergranular attack.
04
Hot Reduction
Then, forging and rolling reduce the ingot to this Incoloy 825 threaded rod section.
05
Solution Annealing
After that, 927–1010 °C annealing and rapid cooling restore the corrosion resistance of this Incoloy 825 threaded rod.
06
Pickling and Descale
Subsequently, acid pickling leaves this Incoloy 825 threaded rod scale-free for fabrication.
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Cold Finishing
We then draw, turn or grind this Incoloy 825 threaded rod to the ordered size and finish.
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Testing and Release
Finally, chemistry, hardness and dimensional checks clear this Incoloy 825 threaded rod for dispatch.
Manufacturing Facility
MANUFACTURING CAPABILITY
Advanced Production For Nickel Alloy Products
Stock lots and made-to-order lengths of Incoloy 825 threaded rod leave on one schedule. Moreover, this Incoloy 825 threaded rod sits inside our bar and rod program.
20,000+ m²
Factory Area
Melting, forging, annealing and pickling bays serve Incoloy 825 threaded rod under one roof.
50+
Production Machines
Units covering hot working, annealing, drawing and pickling for this Incoloy 825 threaded rod.
600 Tons
Monthly Capacity
Incoloy 825 threaded rod output across stock and bespoke lots.
30+
Technical Engineers
Metallurgists who set the anneal plan and hardness scope of this Incoloy 825 threaded rod against your duty.
30+ Countries
Export Reach
In addition, sealed export packing carries this Incoloy 825 threaded rod worldwide.
QUALITY ASSURANCE
Strict Quality Control From Production To Delivery
No Incoloy 825 threaded rod leaves the yard before its heat has cleared our ISO 9001 inspection route. In addition, we check this 825 threaded rod against the chemistry, hardness, dimensions and surface the order names.
01
Heat Identification
We confirm the grade and heat number of this Incoloy 825 threaded rod against your purchase order.
02
Hardness Verification
Specifically, sour-service lots of this Incoloy 825 threaded rod go against the 35 HRC ceiling per NACE MR0175.
03
Dimensional Verification
In addition, the diameter, length and runout of this Incoloy 825 threaded rod go against the ordered tolerance class.
04
Certificate Assembly
Every consignment of this Incoloy 825 threaded rod ships with EN 10204 3.1 papers keyed to its heat.
PRODUCT FORMS
Available Product Forms
Conditions and variants of Incoloy 825 threaded rod cover different machining and service needs. In addition, the list below sets out the Incoloy 825 Threaded Rod variants we quote most often.
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Incoloy 825 UNC Threaded Rod
Unified coarse and fine threads rolled on annealed bar.
Request Availability →
03
Incoloy 825 Full-Thread Studs
Studs cut and threaded to your ordered length.
Request Availability →
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Incoloy 825 Double-Ended Studs
Studs threaded at both ends for flanged joints.
Request Availability →
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Incoloy 825 NACE-Documented Threaded Rod
Threaded stock released with hardness records for sour service.
Request Availability →
06
Incoloy 825 Custom Threaded Rod
Custom thread forms and lengths produced against your drawing.
Request Availability →
APPLICATIONS
Engineered For Demanding Industries
Incoloy 825 threaded rod suits duty where acid attack and chloride cracking meet one component. In addition, the applications below show where this 825 threaded rod serves.
Discuss Your Application →
01
Incoloy 825 Sour-Service Flange Studs
Studs clamping flanges in H2S-bearing production duty.
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Incoloy 825 Acid Plant Header Bolting
Studs closing headers on sulfuric distribution systems.
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Incoloy 825 Seawater Exchanger Bolting
Bolting joining channel heads on seawater coolers.
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Incoloy 825 Scrubber Tie Rods
Tie rods steadying scrubber tower internals.
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Incoloy 825 Pickling Line Anchors
Anchor rods holding pickling line equipment in place.
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Incoloy 825 Phosphoric Vessel Manway Studs
Studs closing manways on phosphoric acid vessels.
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Incoloy 825 Brine Circuit Fasteners
Fasteners holding brine cooler joints closed.
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Incoloy 825 Acid-Plant Fixture Bolts
Bolts clamping exchanger parts during plant maintenance.
TECHNICAL INFORMATION
Technical Specifications
Detailed technical information including chemical composition, mechanical properties, standards and available dimensions.
Chemical Composition
ASTM B425 holds nickel between 38.0% and 46.0% and chromium between 19.5% and 23.5% for this threaded rod, with iron at 22.0% minimum. Moreover, molybdenum at 2.5–3.5% and copper at 1.5–3.0% form the acid-resisting pair behind this threaded rod, while titanium at 0.6–1.2% stabilises the structure against intergranular attack.
For the complete element-by-element limits, open the composition breakdown held on the Incoloy 825 material page for this threaded rod.
Mechanical Properties
The minimum room-temperature values below follow the rod and bar table of ASTM B425 for UNS N08825. Consequently, the ordered condition and hardness basis govern final acceptance of Incoloy 825 threaded rod.
| Condition and Grade | Tensile Strength, min. | Yield Strength (0.2%), min. | Elongation, min. |
|---|---|---|---|
| Annealed — UNS N08825 | ≥85 ksi (586 MPa) | ≥35 ksi (241 MPa) | 30% |
- ASTM B425 sets one annealed condition for rod and bar, with the yield minimum applying from 2.4 mm diameter upward and hardness at 200 HB maximum. Moreover, strength above the annealed floor comes from cold work only, because UNS N08825 does not respond to aging, so sour-service orders carry a hardness record against the 35 HRC ceiling.
Physical Properties
Published references place this threaded rod at a density near 8.14 g/cm³ with a melting range of 1370–1400 °C. Moreover, the Curie temperature sits below −196 °C, so this threaded rod stays non-magnetic even in cryogenic seawater service. Besides, the austenitic matrix keeps these values stable across the whole annealed range.
Meanwhile, the physical properties table on the Incoloy 825 material page holds the modulus, the thermal expansion and the remaining design values behind this threaded rod.
Heat Treatment
The solution anneal is the specification-defining step for this grade, because rapid cooling after 927–1010 °C restores the corrosion resistance the media demand. In addition, we supply this Incoloy 825 threaded rod in whichever condition your duty calls for.
| Condition | Typical Treatment |
|---|---|
| Solution Annealed | Held at 927–1010 °C (1700–1850 °F), then cooled rapidly to restore full corrosion resistance |
| Hot-Worked | Delivered as-rolled or as-forged, with the solution anneal agreed where the order calls for it |
| Cold-Drawn | Drawn after annealing, with the reduction recorded so the higher yield strength is documented |
| Sour-Service Release | NACE MR0175 orders carry a per-lot hardness record against the 35 HRC ceiling |
Standards
The bar behind this threaded rod is certified to ASTM B425 from ASTM International, whose scope names UNS N08825 alone. Moreover, sour-service stud orders add NACE MR0175 / ISO 15156, with hardness recorded against the 35 HRC ceiling. Besides, no dedicated F-series bolt or nut document exists for this grade, so certification follows the bar document itself.
| Standard | Product or Application |
|---|---|
| ASTM B425 | Bar stock behind this threaded product |
| NACE MR0175 / ISO 15156 | Sour-service qualification, hardness recorded per heat |
| DIN 17752 / BS 3076 NA16 | European and British bar documents |
Finally, the full standards list on the Incoloy 825 material page adds the pressure documents, the European designations and the remaining product documents behind this threaded rod.
Dimensions
Dimensions of Incoloy 825 threaded rod follow the manufacturing route, the document and the order quantity. Therefore, the table below lists typical supply ranges, so please confirm your sizes in the inquiry.
| Product Form | Typical Supply | Length |
|---|---|---|
| Threaded Rod | 6–64 mm dia., UNC and UNF | 1 m, 2 m, 3 m or custom |
| Metric Threaded Rod | M6–M64 | 1 m, 2 m, 3 m or custom |
| Full-Thread Studs | 6–64 mm dia. | Cut to length |
| Double-Ended Studs | M8–M36 | Cut to length |
| NACE-Documented Threaded Rod | 6–64 mm dia. | Cut to length |
| Custom Threaded Rod | To drawing | Custom |
Available sizes of this Incoloy 825 threaded rod depend on route, document, condition and lot size. Please confirm your required threaded rod size, section and length in the inquiry.
Bar stock behind this product carries ASTM B425 certification, and sour-service orders add NACE MR0175 / ISO 15156 with hardness recorded against the 35 HRC ceiling. Moreover, no dedicated F-series bolt or nut document exists for this grade, so certification follows the bar document itself and the agreed hardness papers.
Surface Finishes
Finish decides how this threaded rod behaves across acid plants, seawater circuits and sour-service skids, and most stock ships annealed and pickled so the stabilised surface reaches your shop intact. Specifically, we fix the finish on this Incoloy 825 threaded rod before the order is released.
| Surface Condition | Typical Use |
|---|---|
| Cold Drawn | Drawn stock giving this threaded rod close diameter control and a smooth bright skin. |
| Peeled | A machined skin on this threaded rod with uniform diameter for acid-plant shaft work. |
| Rough Turned | A turned surface on this threaded rod where the finishing cut is left to your shop. |
Meanwhile, the surface finishes table on the Incoloy 825 material page lists the remaining conditions we quote for this threaded rod.
Related forms from the same heat cover Incoloy 825 Welding Wire, Incoloy 825 Wire and Incoloy 825 Bright Bar when your threaded rod 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 Incoloy 825 threaded rod order from first question to loading. Therefore, most orders for this 825 threaded rod travel from quotation to dispatch inside three weeks.
1
Send the Medium Data
Give the medium, concentration, temperature, size, quantity and standard this Incoloy 825 threaded rod will face.
2
Fix the Condition
Then we set the anneal, hardness basis and tolerance for this Incoloy 825 threaded rod.
3
Review the Offer
Receive pricing for this Incoloy 825 threaded rod by size, quantity and destination port.
4
Approve the Order
Approve the specification, terms and schedule of this Incoloy 825 threaded rod in writing.
5
Witness Points Agreed
We book any third-party inspection or hardness review of this Incoloy 825 threaded rod before production starts.
6
Dispatch and Documents
Receive this Incoloy 825 threaded rod with mill papers, packing list and the certificate set.
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 Incoloy 825 threaded rod?
ASTM B425 and ASME SB425 govern this Incoloy 825 threaded rod, and the B425 scope names UNS N08825 alone for round, square, hex and rectangular sections.
Is this Incoloy 825 threaded rod suitable for sulfuric acid duty?
Yes. Molybdenum and copper give this Incoloy 825 threaded rod its resistance across a wide band of sulfuric concentrations, subject to your stream temperature.
Does this Incoloy 825 threaded rod qualify for sour service?
Yes. NACE MR0175 / ISO 15156 lists UNS N08825, and we record hardness per heat against the 35 HRC ceiling.
Which anneal does this Incoloy 825 threaded rod receive?
Solution annealing runs at 927–1010 °C with rapid cooling, and the release papers name the temperature actually used on your lot.
How is the price of this Incoloy 825 threaded rod calculated?
Pricing follows weight for this Incoloy 825 threaded rod, with the nickel, molybdenum and copper quotations fixed on the date you receive the offer.
What is your MOQ for this Incoloy 825 threaded rod?
A single bar covers many common sizes of this Incoloy 825 threaded rod, so trial lengths are welcome before container orders.
What are your trade terms for this Incoloy 825 threaded rod?
Quotations default to FOB for this Incoloy 825 threaded rod, and EXW or CIF terms are quoted when you ask for them.
What is the lead time for this Incoloy 825 threaded rod?
Stock sizes of this Incoloy 825 threaded rod dispatch in 7 to 15 days, while made-to-order annealed heats need about 25 days.
Do you provide EN 10204 3.1 or 3.2 certificates for this Incoloy 825 threaded rod?
Yes. Every heat of this Incoloy 825 threaded rod ships with 3.1, and a 3.2 endorsement is booked through the order.
What information should an enquiry for this Incoloy 825 threaded rod include?
Please send the medium, concentration, temperature, section, quantity and destination so we can quote this Incoloy 825 threaded rod accurately.
REQUEST FOR QUOTATION
Need A Custom Alloy Solution?
Incoloy 825 threaded rod is quoted by thread form, diameter and hardness basis to ASTM B425. Send the thread callout, medium and quantity to price this 825 threaded rod.
Specifically, we review your Incoloy 825 threaded rod specification, confirm the hardness basis and document scope, and return pricing with clear terms. Production then follows the signed specification, and each consignment of this Incoloy 825 threaded rod ships with the complete paper set.
