01
Black and Peeled Bar
Peeled stock for buyers who want the scale removed before machining.
Request Availability →Inconel X-750 Black Bar
Hot-rolled black stock in three cycles for parts that will be machined all over.
Three Strengths, One Bar
A single Inconel X-750 black bar reaches 965, 1103 or 1170 MPa minimum tensile once the mill fixes the cycle.
Lowest Cost per Kilo
The as-rolled surface of X-750 black bar skips the finishing passes, so the bar costs less.
Machining Allowance Built In
Every black bar section carries enough stock for the roughing cut that follows.
PRODUCT OVERVIEW
About Inconel X-750 Black Bar
Inconel X-750 black bar ships in UNS N07750, a precipitation-hardening nickel-chromium-iron alloy. Titanium and aluminium build the gamma-prime precipitate inside this as-rolled stock. Niobium then slows its coarsening, so the black bar holds strength to 704 °C.
We supply Inconel X-750 black bar to ASTM B637 in the Type 1, Type 2 and Type 3 conditions. Consequently, the ordered cycle decides the strength level of the black bar, and we record it on the purchase order before production.
Meanwhile, the Inconel X-750 Bar and Rod hub also lists this black bar beside the other forms. The European call-out NiCr15Fe7TiAl maps to the same UNS N07750 material as this black bar.
PRODUCT FEATURES
Key Features of Inconel X-750 Black Bar
Inconel X-750 black bar 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 black bar 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 Bar
Type 2, Type 3 and Type 1 deliver 1170, 1103 and 965 MPa minimum tensile for Inconel X-750 black bar in that order.
01
Scale Left in Place
Specifically, the mill scale on black bar protects the surface until the part reaches the machine.
02
Creep Life Above 593 °C
Moreover, the stabilised Type 1 route guards the creep strength of black bar where the part runs hot for years.
03
No Finishing Premium
Therefore, black bar undercuts bright or ground stock whenever the drawing machines every face.
04
Aging Record Shipped
Each black bar lot travels with the furnace chart for its own solution treatment and age.
05
Machining in the Aged State
The hardened black bar matrix machines with carbide tooling rather than heavy cuts.
06
Heavy Sections Covered
In addition, black bar reaches the heavier sections that a finishing line cannot take.
07
Rough Blanks Ready
In fact, we cut black bar to the blank length your press or saw needs.
08
WHY CHOOSE US
Why Choose Inconel X-750
Sourcing Inconel X-750 black bar depends on deciding the machining allowance before the stock is cut. Where the shop machines every surface, the as-rolled skin costs nothing to lose.
01
Cycle Fixed at Order
Grade, black diameter 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 black bar heat.
03
Blank Length Agreed
In addition, we cut the black bar to the blank length your process states.
04
Export Papers in One Set
Quotations for Inconel X-750 black bar include the packing list, mill certificate and export documents.
MANUFACTURING PROCESS
Reliable Production For Critical Applications
One melt feeds every black bar section, and the ordered cycle then sets the final properties. Because titanium and aluminium oxidise easily, melting control for X-750 black bar matters as much as the rolling schedule.
01
Charge Selection
Weighed nickel, chromium, iron, titanium and aluminium enter the melt that will become this black bar order.
02
Melt and Refine
Vacuum induction melting holds titanium and aluminium inside a narrow window on every black bar heat.
03
Remelt for Cleanliness
Consumable electrode or vacuum arc remelting follows, and the certificate records the route taken for the black bar.
04
Hot Reduction
Forging and rolling reduce the ingot to the ordered black bar section, well above the recrystallisation temperature.
05
Cooling Control
The black bar cools under cover so that the surface scale stays thin and even.
06
Solution Treatment
The black bar holds at 982, 1093 or 1149 °C, as the ordered Type requires.
07
Stabilising and Aging
Consequently, the Type 1 route adds a hold near 843 °C, and every black bar then ages near 704 °C.
08
Cut and Release
Finally, we cut the black bar to the ordered length and release it against the mechanical values.
Manufacturing Facility
MANUFACTURING CAPABILITY
Advanced Production For Nickel Alloy Products
Southerly Alloy supplies Inconel X-750 black bar across the common as-rolled sections and conditions. We confirm black bar size, blank length and finish against your order before production.
20,000+ m2
Site Area
Melting, rolling, heat treatment and cutting for Inconel X-750 black bar sit inside one boundary.
50+
Bar Line Machines
Reheat furnaces, rolling stands, saws and straighteners cover the black bar sections we stock.
600 Tons
Monthly Tonnage
Custom black bar heats and stocked sections share one campaign calendar.
30+
Technical Staff
A metallurgist reviews every X-750 black bar enquiry before the offer leaves.
QUALITY ASSURANCE
Strict Quality Control From Production To Delivery
Chemistry and heat treatment decide these black bar properties together, so our laboratory checks both. Therefore, the certificate reports the cycle that produced the black bar values.
01
Chemistry on the Heat
The laboratory reads titanium, aluminium and niobium in the black bar heat, then records each figure against the ASTM table.
02
Mechanics After Aging
Specifically, tensile and yield values for this black bar come from aged stock rather than solution-treated material.
03
Section and Length
In addition, we check black bar diameter, length and straightness against the ordered allowance.
04
Furnace Chart Attached
Consequently, every black bar certificate carries the solution and aging record for the same heat.
PRODUCT FORMS
Available Product Forms
Different black bar sections suit different roughing operations. Therefore, the list below shows the Inconel X-750 Black Bar variants we quote most often.
02
Black Bar, Heavy
Sections above the hot-rolled bar range ship as forged black stock.
Request Availability →
03
Custom Black Bar
Custom Inconel X-750 black bar produced against your own specification.
Request Availability →
APPLICATIONS
Engineered For Demanding Industries
Rough blanks and heavy machined parts are where Inconel X-750 black bar has served longest. Meanwhile, the machine shop relies on this as-rolled stock wherever the drawing removes every surface.
Discuss Your Application →
01
Machined-All-Over Parts
Parts cut from X-750 black bar where every surface is machined.
02
Forged Blanks
Black bar blanks that go straight to the press.
03
Valve Bodies
Bodies machined from black bar for hot service.
04
Ring Blanks
Black bar sections cut into ring blanks.
05
Heat Treatment Fixtures
Fixture parts machined from black bar that survive furnace cycles.
06
Cryogenic Parts
Black bar parts for duty well below −100 °C.
07
Turbine Hardware
Black bar machined into turbine hardware.
08
Rocket Engine Hardware
Small hot-gas parts cut from Inconel X-750 black bar.
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 black bar, while niobium slows its coarsening.
Iron balances the matrix, and the nickel plus cobalt floor keeps this black bar 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 black bar 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 black bar ranges below follow that text rather than one house rule. For that reason, state the black bar size, the allowance and the ordered length on the enquiry.
| Product Form | Typical Supply Range |
|---|---|
| Black bar | 6-300 mm diameter, as rolled to ASTM B637 |
| Black flat bar | 6-100 mm thick, up to 350 mm wide |
| Black square bar | 8-80 mm across flats, as rolled |
| Black bar, heavy | Sections above 254 mm ship as forged stock |
Cut lengths of this black bar 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 black bar with your order.
| Surface Condition | Typical Use |
|---|---|
| Hot-worked | As-rolled or as-forged surface on this black bar where machining follows. |
| Solution treated and pickled | Standard delivery for this black bar in high-temperature service. |
| Peeled | A machined skin gives this black bar uniform diameter for further turning. |
The mill also rolls and draws this heat into forged bar, flat bar and bright 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 black bar enquiry from the first message to the delivered lot. Therefore, state the black bar duty first, and the cycle then follows from it.
1
State the Duty
Give the service temperature, the load and the medium that the black bar part will meet.
2
Name the Form
Tell us that the order is X-750 black bar rather than bright or ground stock.
3
Fix the Cycle
We agree Type 1, Type 2 or Type 3 for the black bar against that duty.
4
Check the Offer
The quotation states the black bar price per kilogram, the lead time and the certificate set.
5
Confirm the Specification
Grade, black bar size, machining allowance and inspection level enter the order acknowledgement.
6
Charge and Melt
The melt shop weighs the charge and takes the black bar heat through melting and remelting.
7
Roll and Test
The black bar passes the ordered rolling schedule, the heat treatment and release testing.
8
Follow the Load
Finally, the desk tracks the black bar 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 Black Bar?
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 Black Bar?
Type 2 suits black bar 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 Black Bar can you supply?
Black bar runs from 6 to 300 mm diameter as rolled, and the heavier sections ship as forged black stock.
Should I buy black bar or bright bar?
Black bar wins when the drawing machines every surface, because the scale costs nothing to lose. Bright bar wins when the diameter must hold before the first cut.
What does the Type 1 cycle add to black bar?
It adds a stabilising hold near 843 °C after the solution treatment of the black bar. Consequently, the Type 1 route protects creep life above 593 °C at some cost in tensile strength.
Can you supply Inconel X-750 Black Bar in the unaged condition?
Yes. The AMS bar documents cover solution-treated and equalized conditions for buyers who machine the black bar parts first and age them afterwards.
What is your MOQ for Inconel X-750 Black Bar?
A single piece or one coil covers most stock sizes of black bar, so a short cut is enough for a trial.
What are your trade terms for Inconel X-750 Black Bar?
We quote black bar mainly on FOB terms, and EXW or CIF follow on request.
What is the lead time for Inconel X-750 Black Bar?
Stock black bar 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 Black Bar?
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 black bar size, the blank length and the service temperature. The quotation carries the black bar price, the lead time and the certificate set. Because the cycle decides the acceptance level for this black bar, name the Type at enquiry.
A single X-750 black bar proves the grade before a plant-wide commitment.
