01
Ground Rod, Close Band
Ground stock held to a tighter band by agreement for sliding fits.
Request Availability →Inconel X-750 Centreless-Ground Rod
Centreless-ground rod in three cycles held to tight diameter and straightness for shafting and pins.
Three Strengths, One Rod
A single Inconel X-750 centreless-ground rod reaches 965, 1103 or 1170 MPa minimum tensile once the mill fixes the cycle.
Tight Diameter Band
Each centreless-ground rod lot holds h9 diameter as standard, with closer bands on request.
Straightness Controlled
We straighten and gauge every centreless-ground rod so it feeds a bar feeder without whip.
PRODUCT OVERVIEW
About Inconel X-750 Centreless-Ground Rod
Inconel X-750 centreless-ground rod ships in UNS N07750, a precipitation-hardening nickel-chromium-iron alloy. Titanium and aluminium build the gamma-prime precipitate inside this ground stock. Niobium then slows its coarsening, so the centreless-ground rod holds strength to 704 °C.
We supply Inconel X-750 centreless-ground rod to ASTM B637 in the Type 1, Type 2 and Type 3 conditions. Consequently, the ordered cycle decides the strength level of the centreless-ground rod, and we record it on the purchase order before production.
Meanwhile, the Inconel X-750 Bar and Rod hub also lists this centreless-ground rod beside the other forms. The European call-out NiCr15Fe7TiAl maps to the same UNS N07750 material as this centreless-ground rod.
PRODUCT FEATURES
Key Features of Inconel X-750 Centreless-Ground Rod
Inconel X-750 centreless-ground rod is supplied in UNS N07750, the precipitation-hardening nickel-chromium-iron alloy strengthened by gamma prime. Titanium, aluminium and niobium build the precipitate that holds strength to 704 °C. Southerly Alloy supplies and exports X-750 centreless-ground rod to ASTM B637 in the Type 1, Type 2 and Type 3 conditions, with EN 10204 3.1 paperwork on every heat.
Inconel X-750
Three Cycles on One Rod
Type 2, Type 3 and Type 1 deliver 1170, 1103 and 965 MPa minimum tensile for Inconel X-750 centreless-ground rod in that order.
01
Scale Fully Removed
Specifically, grinding strips the rolled skin from the centreless-ground rod before it reaches the machine.
02
Creep Life Above 593 °C
Moreover, the stabilised Type 1 route guards the creep strength of centreless-ground rod where the part runs hot for years.
03
Roundness Held Close
Therefore, centreless-ground rod keeps ovality inside a narrow band along the full length.
04
Aging Record Shipped
Each centreless-ground rod lot travels with the furnace chart for its own solution treatment and age.
05
Machining in the Aged State
The hardened centreless-ground rod matrix machines with carbide tooling rather than heavy cuts.
06
No Centres Needed
In addition, the grinding method suits long, slender centreless-ground rod that would deflect between centres.
07
Lengths Cut to Order
In fact, we cut centreless-ground rod to the length your feeder needs.
08
WHY CHOOSE US
Why Choose Inconel X-750
Sourcing Inconel X-750 centreless-ground rod depends on agreeing the diameter band and the straightness together. Where a sliding fit decides the assembly, the ground band removes the guesswork.
01
Cycle and Band Together
Grade, ground diameter, band and cycle enter the purchase order at the same time.
02
Certificate Names the Treatment
Consequently, each certificate records the solution and aging that the mill applied to that centreless-ground rod heat.
03
Straightness Stated
In addition, we state the straightness limit for the centreless-ground rod on the offer.
04
Export Papers in One Set
Quotations for Inconel X-750 centreless-ground rod include the packing list, mill certificate and export documents.
MANUFACTURING PROCESS
Reliable Production For Critical Applications
One melt feeds every centreless-ground rod section, and the ordered cycle then sets the final properties. Because titanium and aluminium oxidise easily, melting control for X-750 centreless-ground rod matters as much as the grinding pass.
01
Charge Selection
Weighed nickel, chromium, iron, titanium and aluminium enter the melt that will become this centreless-ground rod order.
02
Melt and Refine
Vacuum induction melting holds titanium and aluminium inside a narrow window on every centreless-ground rod heat.
03
Remelt for Cleanliness
Consumable electrode or vacuum arc remelting follows, and the certificate records the route taken for the centreless-ground rod.
04
Hot Reduction
Forging and rolling reduce the ingot to rod above the recrystallisation temperature.
05
Straightening
The rod passes a rotary straightener so the centreless-ground rod starts true.
06
Centreless Grinding
Regulating and grinding wheels remove the skin and bring the centreless-ground rod to its ordered band.
07
Solution and Aging
The centreless-ground rod then receives the ordered solution treatment, and the Type 1 route adds a hold near 843 °C.
08
Final Gauge
Finally, we gauge centreless-ground rod diameter, ovality and straightness before the lot is released.
Manufacturing Facility
MANUFACTURING CAPABILITY
Advanced Production For Nickel Alloy Products
Southerly Alloy supplies Inconel X-750 centreless-ground rod across the common ground diameters, bands and conditions. We confirm centreless-ground rod diameter, band and straightness against your order before production.
20,000+ m2
Site Area
Melting, rolling, heat treatment and grinding for Inconel X-750 centreless-ground rod sit inside one boundary.
50+
Bar Line Machines
Straighteners, centreless grinders, polishers and gauges cover the centreless-ground rod sizes we stock.
600 Tons
Monthly Tonnage
Custom centreless-ground rod heats and stocked bands share one campaign calendar.
30+
Technical Staff
A metallurgist reviews every X-750 centreless-ground rod enquiry before the offer leaves.
QUALITY ASSURANCE
Strict Quality Control From Production To Delivery
Chemistry and heat treatment decide these centreless-ground rod properties together, so our laboratory checks both. Therefore, the certificate reports the cycle that produced the centreless-ground rod values.
01
Chemistry on the Heat
The laboratory reads titanium, aluminium and niobium in the centreless-ground rod heat, then records each figure against the ASTM table.
02
Mechanics After Aging
Specifically, tensile and yield values for this centreless-ground rod come from aged stock rather than solution-treated material.
03
Ovality and Straightness
In addition, we gauge centreless-ground rod diameter, ovality and straightness against the agreed band.
04
Furnace Chart Attached
Consequently, every centreless-ground rod certificate carries the solution and aging record for the same heat.
PRODUCT FORMS
Available Product Forms
Different centreless-ground rod bands suit different fits and feeders. Therefore, the list below shows the Inconel X-750 Centreless-Ground Rod variants we quote most often.
02
Ground Rod, Long Length
Ground rod straightened for long feed runs on automatic lathes.
Request Availability →
03
Ground and Polished Rod
Ground rod then polished for visible shafting.
Request Availability →
04
Ground Rod, Aged
Ground stock aged near 704 °C for immediate service.
Request Availability →
05
Ground Rod, Soft
Solution-treated ground stock for parts that the buyer machines first.
Request Availability →
06
Custom Ground Rod
Custom Inconel X-750 centreless-ground rod produced against your own specification.
Request Availability →
APPLICATIONS
Engineered For Demanding Industries
Shafting and close-fit pins are where Inconel X-750 centreless-ground rod has served longest. Meanwhile, the instrument trade relies on this ground stock wherever a part must slide without play.
Discuss Your Application →
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Shafting
Shafting ground from X-750 centreless-ground rod that runs true.
02
Pins and Plugs
Pins ground from centreless-ground rod to a tight fit.
03
Spindles
Spindles machined from centreless-ground rod for hot assemblies.
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Valve Stems
Stems ground from centreless-ground rod for hot valves.
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Guide Rods
Guides ground from centreless-ground rod for furnace mechanisms.
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Instrument Shafts
Shafts ground from centreless-ground rod for instruments.
07
Cryogenic Rods
Ground rod for duty well below −100 °C.
08
Nuclear Hardware
Ground rod hardware machined for in-vessel duty.
TECHNICAL INFORMATION
Technical Specifications
Detailed technical information including chemical composition, mechanical properties, standards and available dimensions.
Chemical Composition
The limits come from ASTM B637, which shares one composition table with the AMS documents for UNS N07750. Titanium and aluminium set the gamma-prime volume in this centreless-ground rod, while niobium slows its coarsening.
Iron balances the matrix, and the nickel plus cobalt floor keeps this centreless-ground rod austenitic. The full composition table on the Inconel X-750 material page lists every element against its ASTM limit.
Mechanical Properties
The three bar rows reproduce ASTM B637 Table 3 for UNS N07750. Section size matters for Type 2, because heavy bar relaxes to a lower elongation floor. Every value below is a minimum unless the row states a range.
| Product Form | Condition | Tensile Strength, min. | Yield Strength (0.2%), min. | Elongation, min. | Hardness |
|---|---|---|---|---|---|
| Bar and rod, ASTM B637 Type 2 | Solution treated at 982 °C, aged | >=170 ksi (1170 MPa) | >=115 ksi (790 MPa) | 18% | 302-363 HB |
| Bar and rod, ASTM B637 Type 3 | Solution treated at 1093 °C, aged | >=160 ksi (1103 MPa) | >=100 ksi (689 MPa) | 20% | 267-363 HB |
| Bar and rod, ASTM B637 Type 1 | Solution treated at 1149 °C, stabilised, aged | >=140 ksi (965 MPa) | >=90 ksi (620 MPa) | 8% | 262 HB min. |
Type 2 holds over sections up to 63.5 mm, and heavier bar relaxes to 15% elongation and 15% reduction of area. Type 1 trades tensile strength for creep life above 593 °C, which explains its lower elongation floor. Hardness ranges are informative only.
Physical Properties
Design work leans on the published figures for this grade, and density sits at 8.28 g/cm³. Moreover, the magnetic behaviour of this centreless-ground rod changes with the heat treatment applied, so the Curie temperature follows the cycle.
The physical properties table on the Inconel X-750 material page carries the remaining values, including the modulus and the thermal expansion.
Heat Treatment
Inconel X-750 is precipitation hardened, so the cycle rather than a simple anneal sets its final strength. We supply the stock in the condition below that your duty needs.
| Condition | Typical Treatment |
|---|---|
| Type 2 (single age) | Solution treated at 982 °C, then aged near 704 °C |
| Type 3 (single age) | Solution treated at 1093 °C, then aged near 704 °C |
| Type 1 (stabilised) | Solution treated at 1149 °C, stabilised near 843 °C, then aged |
| Solution treated only | Soft stock for buyers who machine and age afterwards |
Standards
ASTM B637 is the principal UNS N07750 bar specification, and the AMS 5667 group covers the same forms by melting route. The three designations below settle most enquiries.
| Standard | Product or Application |
|---|---|
| ASTM B637 / ASME SB637 | Bars, forgings, and forging stock for moderate or high temperature service |
| AMS 5667 | Bars, forgings, and rings, equalized and precipitation hardenable |
| UNS N07750 - W.Nr. 2.4669 - NiCr15Fe7TiAl | Material designations |
The full standards list on the Inconel X-750 material page adds the AMS 5668 group, the NACE sour service qualification and the Chinese and Japanese designations.
Pyromet X750, Nickelvac X750, Nicrofer 7016 TiNb, and Inconel are trademarks of their respective owners. We quote those names for reference only, and our deliveries follow the ASTM and AMS documents listed above.
The standard text from ASTM International settles any acceptance question.
Dimensions
Because ASTM B637 prints its own scope, the centreless-ground rod ranges below follow that text rather than one house rule. For that reason, state the ground diameter, the band and the ordered length on the enquiry.
| Product Form | Typical Supply Range |
|---|---|
| Centreless-ground rod | 3-100 mm diameter held to h9 |
| Ground rod, close band | 3-60 mm diameter by agreement |
| Ground rod, long length | Straightness to 0.5 mm per metre on request |
| Ground and polished rod | Ground then polished for visible shafting |
Cut lengths of this centreless-ground rod run from 1 m up to 6 m as standard, and the AMS bar documents cap their scope at 254 mm. Therefore, heavier sections ship as forged product against the same standard.
Surface Finishes
Finish follows the operation that comes next rather than a catalogue default. Moreover, we agree the surface of this centreless-ground rod with your order.
| Surface Condition | Typical Use |
|---|---|
| Centerless ground | Tight diameter and straightness on this centreless-ground rod used as shafting. |
| Polished | Reduced roughness on this centreless-ground rod for product-contact and visible parts. |
| Peeled | A machined skin gives this centreless-ground rod uniform diameter for further turning. |
Other shapes cut from the same heat include polished bar, bright bar and round 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
Eight steps carry a centreless-ground rod enquiry from the first message to the delivered lot. Therefore, state the centreless-ground rod duty first, and the cycle then follows from it.
1
State the Duty
Give the service temperature, the load and the medium that the centreless-ground rod will meet.
2
Name the Form
Tell us that the order is X-750 centreless-ground rod rather than hot-rolled stock.
3
Fix the Cycle
We agree Type 1, Type 2 or Type 3 for the centreless-ground rod against that duty.
4
Check the Offer
The quotation states the centreless-ground rod price per kilogram, the lead time and the certificate set.
5
Confirm the Specification
Grade, ground diameter, band and inspection level enter the order acknowledgement.
6
Charge and Melt
The melt shop weighs the charge and takes the centreless-ground rod heat through melting and remelting.
7
Grind and Test
The centreless-ground rod passes the ordered grinding passes, the heat treatment and release testing.
8
Follow the Load
Finally, the desk tracks the centreless-ground rod shipment and forwards the documents ahead of arrival.
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 Inconel X-750 Centreless-Ground Rod?
ASTM B637 governs the bar, forging and ring forms of UNS N07750. In addition, the AMS 5667 group covers the same forms by melting route and solution treatment.
Which heat treatment should I order for Inconel X-750 Centreless-Ground Rod?
Type 2 suits centreless-ground rod below about 593 °C, because it carries the highest tensile floor at 1170 MPa. Above that temperature, the stabilised Type 1 cycle is the better choice.
What sizes of Inconel X-750 Centreless-Ground Rod can you supply?
Centreless-ground rod runs from 3 to 100 mm diameter, and the standard band follows h9 under ISO 286-2.
Why grind the rod instead of turning it?
Grinding removes less metal and leaves no turning marks. As a result, a ground rod holds a tighter diameter band on long, slender sections.
What does the Type 1 cycle add to centreless-ground rod?
It adds a stabilising hold near 843 °C after the solution treatment of the centreless-ground rod. Consequently, the Type 1 route protects creep life above 593 °C at some cost in tensile strength.
Can you supply Inconel X-750 Centreless-Ground Rod in the unaged condition?
Yes. The AMS bar documents cover solution-treated and equalized conditions for buyers who machine the centreless-ground rod parts first and age them afterwards.
What is your MOQ for Inconel X-750 Centreless-Ground Rod?
A single piece or one coil covers most stock sizes of centreless-ground rod, so a short cut is enough for a trial.
What are your trade terms for Inconel X-750 Centreless-Ground Rod?
We quote centreless-ground rod mainly on FOB terms, and EXW or CIF follow on request.
What is the lead time for Inconel X-750 Centreless-Ground Rod?
Stock centreless-ground rod ships in 7 to 15 days, and made-to-order material runs about 25 days.
Do you provide EN 10204 3.1 or 3.2 certificates for Inconel X-750 Centreless-Ground Rod?
Yes. Every heat ships with an EN 10204 3.1 certificate, and we arrange 3.2 endorsement on request.
REQUEST FOR QUOTATION
Need A Custom Alloy Solution?
Send the ground rod diameter, the band and the service temperature. The quotation carries the centreless-ground rod price, the lead time and the certificate set. Because the cycle decides the acceptance level for this centreless-ground rod, name the Type at enquiry.
A single X-750 centreless-ground rod proves the grade before a plant-wide commitment.
