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Incoloy 800/800H/800HT Metric Threaded Rod
Rod rolled to metric coarse and fine threads through M64.
Request Availability →Incoloy 800 / 800H / 800HT Threaded Rod
Incoloy 800/800H/800HT fully threaded rod to ASTM B408 for reformer flanges, furnace doors and hot ducting above 593 °C.
One B408 Table, Three Designations
Carbon and the Al+Ti total decide whether this Incoloy 800/800H/800HT threaded rod ships as N08800, N08810 or N08811.
Coarse-Grain Heats Verified
Moreover, every 800H and 800HT threaded rod lot carries an E112 grain-size record of ASTM 5 or coarser.
Creep Design Above 593 °C
Furthermore, we name the ASME code cases behind this Incoloy 800/800H/800HT threaded rod so your design basis arrives with the price.
PRODUCT OVERVIEW
About Incoloy 800 / 800H / 800HT Threaded Rod
Incoloy 800 / 800H / 800HT threaded rod arrives in the iron-nickel-chromium family whose design divide sits at 593 °C. Above 593 °C, 800H and 800HT stock of this Incoloy 800/800H/800HT threaded rod holds creep strength far longer under load.
We supply Incoloy 800/800H/800HT threaded rod to ASTM B408 and ASME SB408 in hot-worked, solution-annealed and cold-drawn conditions. Your order for this 800 series threaded rod carries heat-number records and EN 10204 3.1 paperwork for goods-in checks. Besides, the designation, anneal and finish on the threaded rod are agreed before the heat is booked.
Meanwhile, the chemistry and the design values behind Incoloy 800/800H/800HT threaded rod sit on our Incoloy 800/800H/800HT material page for cross-reference.
PRODUCT FEATURES
Key Features of Incoloy 800 / 800H / 800HT Threaded Rod
Incoloy 800/800H/800HT threaded rod arrives in UNS N08800, N08810 and N08811, the iron-nickel-chromium family whose design divide sits at 593 °C. We provide ASTM B408 threaded rod fully threaded in the annealed conditions per ASTM B408 for furnace builders, reformer fabricators and heat-treatment shops. Every Incoloy 800/800H/800HT threaded rod order carries heat-number traceability, EN 10204 3.1 mill test reports and full export documentation.
Incoloy 800 / 800H / 800HT
593 °C Design Divide
For example, this Incoloy 800/800H/800HT threaded rod moves to 800H or 800HT above the line where creep takes over.
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Coarse Grain Verified
Specifically, 800H and 800HT stock of this Incoloy 800/800H/800HT threaded rod carries an E112 grain-size record per lot.
02
Oxidation and Carburization Resistance
Besides, the chromium-rich scale on this Incoloy 800/800H/800HT threaded rod regenerates in hot oxidizing and carburizing gas.
03
Chloride SCC Resistance
In turn, 30–35% nickel keeps this Incoloy 800/800H/800HT threaded rod austenitic against chloride cracking.
04
ASME Code Case Coverage
Moreover, design allowables for this Incoloy 800/800H/800HT threaded rod above 593 °C follow ASME Code Cases 1325, 1983 and 1987.
05
Weldable Without Post-Weld Heat Treatment
Standard arc practice on this Incoloy 800/800H/800HT threaded rod releases most fabrications without a furnace cycle.
06
Higher Grade-800 Strength
The finer annealed grain of grade 800 gives this Incoloy 800/800H/800HT threaded rod the top room-temperature minimums of the family.
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Sensitization Band Managed
Finally, we route heavy welded sections of this Incoloy 800/800H/800HT threaded rod around the 425–815 °C band.
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WHY CHOOSE US
Why Choose Incoloy 800 / 800H / 800HT
Service temperature fixes the thread route before anything else in Incoloy 800/800H/800HT threaded rod. Therefore, we agree the thread class, the designation and the 899 °C ASME basis for this 800 series threaded rod before quoting.
01
Duty Read Before Pricing
We record the temperature, the atmosphere and the designation your Incoloy 800/800H/800HT threaded rod will meet before proposing a delivery condition.
02
Certificates Tied to the Heat
Specifically, EN 10204 3.1 papers, heat numbers and E112 grain records follow each Incoloy 800/800H/800HT threaded rod delivery.
03
Trial Pieces and Container Lots
In addition, this Incoloy 800/800H/800HT threaded rod moves through one route whether you need a single length or a full container.
04
Terms Stated in Writing
Quotations for this Incoloy 800/800H/800HT threaded rod name the designation, section, finish and document set instead of leaving them open.
MANUFACTURING PROCESS
Reliable Production For Critical Applications
Bar production for Incoloy 800/800H/800HT threaded rod runs from charge weighing to final packing. Our team logs each stage of this 800 series threaded rod route against its heat number.
01
Charge Weighing
We start from electrolytic nickel, chromium and iron and hold this 800 series threaded rod to the B408 analysis.
02
Melting and Refining
First, the charge for this Incoloy 800/800H/800HT threaded rod melts and refines under controlled practice.
03
Ingot Casting
Next, this Incoloy 800/800H/800HT threaded rod casts into ingots under controlled solidification.
04
Hot Reduction
Then, forging and rolling reduce the ingot to this Incoloy 800/800H/800HT threaded rod section.
05
Solution Annealing
After that, 800H heats of this Incoloy 800/800H/800HT threaded rod anneal at 1121 °C minimum, and 800HT heats at 1149 °C minimum, to set the coarse grain.
06
Grain-Size Verification
Subsequently, an E112 check confirms ASTM 5 or coarser grain on the 800H and 800HT lots of this Incoloy 800/800H/800HT threaded rod.
07
Cold Finishing
We then draw, turn or grind this Incoloy 800/800H/800HT threaded rod to the ordered size and finish.
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Testing and Release
Finally, chemistry, mechanical and dimensional checks clear this Incoloy 800/800H/800HT threaded rod for dispatch.
Manufacturing Facility
MANUFACTURING CAPABILITY
Advanced Production For Nickel Alloy Products
Stock lengths and made-to-order lots of Incoloy 800/800H/800HT threaded rod leave on one schedule. Moreover, this Incoloy 800/800H/800HT threaded rod sits inside our bar and rod program.
20,000+ m²
Factory Area
Specifically, melting, forging, annealing and inspection halls serve Incoloy 800/800H/800HT threaded rod under one roof.
50+
Production Machines
Equipment covering hot working, solution annealing and cold finishing for this Incoloy 800/800H/800HT threaded rod.
600 Tons
Monthly Capacity
Incoloy 800/800H/800HT threaded rod output across stock and made-to-order sizes.
30+
Technical Engineers
Metallurgists who set the anneal plan and document scope of this Incoloy 800/800H/800HT threaded rod against your duty.
30+ Countries
Export Reach
In addition, documented logistics carry this Incoloy 800/800H/800HT threaded rod worldwide.
QUALITY ASSURANCE
Strict Quality Control From Production To Delivery
No Incoloy 800/800H/800HT threaded rod leaves the yard before its heat has cleared our ISO 9001 inspection route. In addition, we check this 800 series threaded rod against the chemistry, grain size, dimensions and surface the order names.
01
Heat Identification
We confirm the designation and heat number of this Incoloy 800/800H/800HT threaded rod against your purchase order.
02
Grain-Size Verification
Specifically, 800H and 800HT stock of this Incoloy 800/800H/800HT threaded rod goes against ASTM 5 or coarser per E112.
03
Dimensional Verification
In addition, the size, length and straightness of this Incoloy 800/800H/800HT threaded rod go against standard and drawing tolerances.
04
Certificate Assembly
Every consignment of this Incoloy 800/800H/800HT threaded rod carries EN 10204 3.1 documents keyed to the heat number.
PRODUCT FORMS
Available Product Forms
Conditions and variants of Incoloy 800/800H/800HT threaded rod cover different machining and service needs. In addition, the list below sets out the Incoloy 800/800H/800HT Threaded Rod variants we quote most often.
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Incoloy 800/800H/800HT UNC Threaded Rod
Unified coarse and fine threads rolled on annealed bar.
Request Availability →
03
Incoloy 800/800H/800HT Full-Thread Studs
Studs cut and threaded to your stated length.
Request Availability →
04
Incoloy 800/800H/800HT Double-Ended Studs
Studs threaded at both ends for flanged joints.
Request Availability →
05
Incoloy 800/800H/800HT Annealed Threaded Rod (800H)
Threaded stock released in the coarse-grain 800H condition.
Request Availability →
06
Incoloy 800/800H/800HT Custom Threaded Rod
Custom thread forms and lengths produced to your drawing.
Request Availability →
APPLICATIONS
Engineered For Demanding Industries
Incoloy 800/800H/800HT threaded rod is chosen where heavy load and hot atmosphere meet in one component. In addition, the applications below show where this 800 series threaded rod serves.
Discuss Your Application →
01
Incoloy 800/800H/800HT Reformer Header Bolting
Studs clamping reformer headers above the 593 °C line.
02
Incoloy 800/800H/800HT Furnace Door Fasteners
Fasteners closing furnace doors through daily thermal cycles.
03
Incoloy 800/800H/800HT Hot Duct Flange Studs
Studs joining flanged joints in hot-gas ducting.
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Incoloy 800/800H/800HT Superheater Header Bolting
Bolting closing superheater headers on power boilers.
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Incoloy 800/800H/800HT Expansion Joint Anchors
Anchor rods holding hot expansion joints in place.
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Incoloy 800/800H/800HT Cracking Furnace Tie Rods
Tie rods steadying cracking furnace coil assemblies.
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Incoloy 800/800H/800HT Kiln and Oven Hardware
Hardware holding kiln structures square under heat.
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Incoloy 800/800H/800HT Heat-Treatment Fixture Bolts
Bolts clamping fixtures inside heat-treatment furnaces.
TECHNICAL INFORMATION
Technical Specifications
Detailed technical information including chemical composition, mechanical properties, standards and available dimensions.
Chemical Composition
ASTM B408 holds nickel between 30.0% and 35.0% and chromium between 19.0% and 23.0% for this threaded rod, with iron as the balance of the melt. Moreover, the carbon window and the Al+Ti total decide whether a heat reads N08800, N08810 or N08811. Besides, all three designations sit on one and the same B408 composition table.
For the full three-column element set, open the composition breakdown held on the Incoloy 800/800H/800HT material page for this threaded rod.
Mechanical Properties
The minimum room-temperature values below follow the rod and bar table of ASTM B408, split by delivery condition and designation. Consequently, condition and designation govern final acceptance of Incoloy 800/800H/800HT threaded rod.
| Condition and Grade | Tensile Strength, min. | Yield Strength (0.2%), min. | Elongation, min. |
|---|---|---|---|
| Hot-worked, as-hot-worked — UNS N08800 | ≥80 ksi (550 MPa) | ≥35 ksi (240 MPa) | 25% |
| Cold-worked and hot-worked, annealed — UNS N08800 | ≥75 ksi (515 MPa) | ≥30 ksi (205 MPa) | 30% |
| Annealed — UNS N08810 / N08811 | ≥65 ksi (450 MPa) | ≥25 ksi (170 MPa) | 30% |
- Grade 800 keeps the higher room-temperature minimums because its anneal sets a finer grain, while 800H and 800HT trade part of that strength for the coarse grain their creep design needs, so the ordered designation and condition govern final acceptance.
Physical Properties
Published references place this threaded rod at a density near 7.94 g/cm³ with a melting range of 1357–1385 °C. Moreover, the Curie temperature sits near −115 °C, so this threaded rod stays non-magnetic in service. Besides, the austenitic matrix keeps these values stable across all three designations.
Meanwhile, the physical properties table on the Incoloy 800/800H/800HT material page holds the modulus, the thermal expansion and the remaining design values behind this threaded rod.
Heat Treatment
The anneal is the specification-defining step for this family, because the grain it sets decides the creep life of the part. In addition, we supply this Incoloy 800/800H/800HT threaded rod in whichever condition your duty calls for.
| Condition | Typical Treatment |
|---|---|
| Solution Annealed (800H) | Held at 1121 °C (2050 °F) minimum, then cooled to set ASTM 5 or coarser grain |
| Solution Annealed (800HT) | Held at 1149 °C (2100 °F) minimum for the 0.85–1.20% Al+Ti window |
| Grade 800 Anneal | Annealed without a grain-size requirement, keeping the higher room-temperature strength |
| Stress Relieved | A low-temperature relief that holds straightness without dwelling in the 425–815 °C sensitization band |
Standards
The bar behind this threaded rod is certified to ASTM B408 from ASTM International, and heavy stud blanks can follow the ASTM B564 forging route. Moreover, no dedicated F-series bolt or nut document exists for this family, so certification follows the bar and forging documents themselves. Besides, ASME bolt rules cap N08810 and N08811 service temperature at 899 °C.
| Standard | Product or Application |
|---|---|
| ASTM B408 | Bar stock behind this threaded product |
| ASTM B564 | Forging route for heavy stud blanks |
| ASME Code Cases 1325 / 1983 / 1987 | Creep design allowables for 800H and 800HT bolting |
Finally, the full standards list on the Incoloy 800/800H/800HT material page adds the ASME code cases, the European designations and the remaining product documents behind this threaded rod.
Dimensions
Dimensions of Incoloy 800/800H/800HT threaded rod 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 |
|---|---|---|
| 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 |
| Annealed Threaded Rod (800H) | 6–64 mm dia. | Cut to length |
| Custom Threaded Rod | To drawing | Custom |
Available sizes of this Incoloy 800/800H/800HT threaded rod depend on the manufacturing route, the standard, the material condition and the order quantity. Please confirm your required threaded rod size, section and length in the inquiry.
Bar stock behind this product carries ASTM B408 certification, and heavy stud blanks can follow the ASTM B564 forging route. Moreover, no dedicated F-series bolt or nut document exists for this family, so certification follows the bar and forging documents themselves, and ASME bolt rules cap N08810 and N08811 service temperature at 899 °C.
Surface Finishes
Finish decides how this threaded rod scales, machines and clears your incoming checks, and 800H and 800HT normally ship solution annealed so the coarse grain survives to the end of the route. Specifically, we fix the finish on this Incoloy 800/800H/800HT 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. |
| Solution Annealed | Coarse-grain anneal at 1121 °C or above for 800H, or 1149 °C for 800HT stock of this threaded rod. |
| Peeled | A machined skin on this threaded rod with uniform diameter for the following turning pass. |
Meanwhile, the surface finishes table on the Incoloy 800/800H/800HT material page lists the remaining conditions we quote for this threaded rod.
Related forms from the same heat cover Incoloy 800/800H/800HT Welding Wire, Incoloy 800/800H/800HT Wire and Incoloy 800/800H/800HT 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 800/800H/800HT threaded rod order from first question to loading. Therefore, most orders for this 800 series threaded rod move from quotation to dispatch inside three weeks.
1
Send the Duty Data
Give the designation, size, quantity, standard and the temperature your Incoloy 800/800H/800HT threaded rod will see.
2
Fix the Condition
Then we set the anneal, grain-size requirement and tolerance for this Incoloy 800/800H/800HT threaded rod.
3
Review the Offer
Receive pricing for this Incoloy 800/800H/800HT threaded rod by dimension, quantity and destination port.
4
Approve the Order
Approve the specification, terms and schedule for this Incoloy 800/800H/800HT threaded rod in writing.
5
Witness Points Agreed
Any third-party inspection or grain-size review of this Incoloy 800/800H/800HT threaded rod is booked before production starts.
6
Dispatch and Documents
Receive this Incoloy 800/800H/800HT threaded rod 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 Incoloy 800/800H/800HT threaded rod?
ASTM B408 and ASME SB408 govern this Incoloy 800/800H/800HT threaded rod across the three designations for round, square, hex and rectangular sections.
Which designation should I order for service above 593 °C?
ASTM B408 names 1100 °F (593 °C) as the ceiling for normal service of UNS N08800, so creep-governed duty above that line moves to 800H or 800HT for this Incoloy 800/800H/800HT threaded rod.
What does the coarse-grain requirement change on this Incoloy 800/800H/800HT threaded rod?
The 800H and 800HT anneals set ASTM 5 or coarser grain, so this Incoloy 800/800H/800HT threaded rod ships with an E112 record rather than a fine annealed structure.
Does AMS 5766 cover all three designations?
No. AMS 5766 reaches bars, forgings and forging stock of the grade 800 chemistry only, so 800H and 800HT orders for this Incoloy 800/800H/800HT threaded rod follow the ASTM and European documents.
How is the price of this Incoloy 800/800H/800HT threaded rod calculated?
Pricing follows weight for this Incoloy 800/800H/800HT threaded rod, with the nickel and chromium quotations fixed on the date you receive the offer.
What is your MOQ for this Incoloy 800/800H/800HT threaded rod?
A single piece covers many common sizes of this Incoloy 800/800H/800HT threaded rod.
What are your trade terms for this Incoloy 800/800H/800HT threaded rod?
FOB covers most orders for this Incoloy 800/800H/800HT threaded rod, and EXW or CIF terms are available when you ask.
What is the lead time for this Incoloy 800/800H/800HT threaded rod?
Stock sizes of this Incoloy 800/800H/800HT threaded rod dispatch in 7 to 15 days, while grain-controlled 800H and 800HT heats need about 25 days.
Do you provide EN 10204 3.1 or 3.2 certificates for this Incoloy 800/800H/800HT threaded rod?
Yes. Every heat of this Incoloy 800/800H/800HT threaded rod ships with 3.1, and a 3.2 endorsement is booked through the order.
What information should an enquiry for this Incoloy 800/800H/800HT threaded rod include?
Please send the designation, section, diameter, length, delivery condition, finish, quantity and destination so we can quote this Incoloy 800/800H/800HT threaded rod accurately.
REQUEST FOR QUOTATION
Need A Custom Alloy Solution?
Incoloy 800/800H/800HT threaded rod is quoted by thread form, diameter and designation to ASTM B408. Send the thread callout, service temperature and quantity to price this 800 series threaded rod.
Specifically, we review your Incoloy 800/800H/800HT threaded rod specification, confirm the designation and document scope, and return pricing with clear terms. Production then follows the signed specification, and each consignment of this Incoloy 800/800H/800HT threaded rod ships with the full paperwork set.
