Cold-Drawn and Aged Bar
Drawn stock aged near 704 °C for immediate service.
Request Availability →Cold-drawn stock in three cycles with closer diameter control for small turned parts.
A single Inconel X-750 cold-drawn bar reaches 965, 1103 or 1170 MPa minimum tensile once the mill fixes the cycle.
Cold work raises the tensile floor of X-750 cold-drawn bar before the age even begins.
Each cold-drawn bar lot is drawn to the diameter band your part drawing states.
Inconel X-750 cold-drawn bar ships in UNS N07750, a precipitation-hardening nickel-chromium-iron alloy. Titanium and aluminium build the gamma-prime precipitate inside this drawn stock. Niobium then slows its coarsening, so the cold-drawn bar holds strength to 704 °C.
We supply Inconel X-750 cold-drawn bar to ASTM B637 and AMS 5667 in the Type 1, Type 2 and Type 3 conditions. Consequently, the ordered cycle decides the strength level of the cold-drawn bar, and we record it on the purchase order before production.
Meanwhile, the Inconel X-750 Bar and Rod hub also lists this cold-drawn bar beside the other forms. The European call-out NiCr15Fe7TiAl maps to the same UNS N07750 material as this cold-drawn bar.
Inconel X-750 cold-drawn 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 cold-drawn bar to ASTM B637 in the Type 1, Type 2 and Type 3 conditions, with EN 10204 3.1 paperwork on every heat.
Type 2, Type 3 and Type 1 deliver 1170, 1103 and 965 MPa minimum tensile for Inconel X-750 cold-drawn bar in that order.
Specifically, the cold work in drawn bar raises tensile past the hot-finished floor of the same size.
Moreover, the stabilised Type 1 route guards the creep strength of cold-drawn bar where the part runs hot for years.
Therefore, a closer drawn band leaves less material for the roughing pass to remove.
Each cold-drawn bar lot travels with the furnace chart for its own solution treatment and age.
The hardened cold-drawn bar matrix machines with carbide tooling rather than heavy cuts.
In addition, we draw hexagon and square sections as well as rounds.
In fact, we ship cold-drawn bar in coils or in cut straight lengths.
Sourcing Inconel X-750 cold-drawn bar depends on stating the drawn band before the stock is produced. Where a Swiss-type lathe runs the bar, the diameter band and the straightness decide the cycle time.
Grade, drawn diameter, band and cycle enter the purchase order at the same time.
Consequently, each certificate records the solution and aging that the mill applied to that cold-drawn bar heat.
In addition, the drawing route and the reduction ratio travel with the cold-drawn bar.
Quotations for Inconel X-750 cold-drawn bar include the packing list, mill certificate and export documents.
One melt feeds every cold-drawn bar section, and the ordered cycle then sets the final properties. Because titanium and aluminium oxidise easily, melting control for X-750 cold-drawn bar matters as much as the drawing pass.
Weighed nickel, chromium, iron, titanium and aluminium enter the melt that will become this cold-drawn bar order.
Vacuum induction melting holds titanium and aluminium inside a narrow window on every cold-drawn bar heat.
Consumable electrode or vacuum arc remelting follows, and the certificate records the route taken for the cold-drawn bar.
Forging and rolling reduce the ingot to rod above the recrystallisation temperature.
The rod is descaled and pointed before the cold-drawn bar enters the draw bench.
Successive passes pull the cold-drawn bar down to the ordered diameter through carbide dies.
The cold-drawn bar then receives the ordered solution treatment, and the Type 1 route adds a hold near 843 °C.
Finally, we gauge the cold-drawn bar diameter, tensile and surface before the lot is released.
Southerly Alloy supplies Inconel X-750 cold-drawn bar across the common drawn diameters, bands and conditions. We confirm cold-drawn bar diameter, band and finish against your order before production.
Melting, forging, heat treatment and drawing for Inconel X-750 cold-drawn bar sit inside one boundary.
Draw benches, pointing presses, straighteners and grinders cover the cold-drawn bar sizes we stock.
Custom cold-drawn bar heats and stocked bands share one campaign calendar.
A metallurgist reviews every X-750 cold-drawn bar enquiry before the offer leaves.
Chemistry and heat treatment decide these cold-drawn bar properties together, so our laboratory checks both. Therefore, the certificate reports the cycle that produced the cold-drawn bar values.
The laboratory reads titanium, aluminium and niobium in the cold-drawn bar heat, then records each figure against the ASTM table.
Specifically, tensile and yield values for this cold-drawn bar come from aged stock rather than solution-treated material.
In addition, we gauge cold-drawn bar diameter, ovality and straightness against the agreed band.
Consequently, every cold-drawn bar certificate carries the solution and aging record for the same heat.
Different cold-drawn bar bands suit different automatic lathes. Therefore, the list below shows the Inconel X-750 Cold-Drawn Bar variants we quote most often.
Drawn stock aged near 704 °C for immediate service.
Request Availability →Drawn bar then ground to hold a tighter diameter band.
Request Availability →Drawn bar in coil for headers and long feed runs.
Request Availability →Custom Inconel X-750 cold-drawn bar produced against your own specification.
Request Availability →Small turned parts and automatic lathe work are where Inconel X-750 cold-drawn bar has served longest. Meanwhile, the fastener trade relies on this drawn stock wherever a close band saves machine time.
Discuss Your Application →Parts turned from X-750 cold-drawn bar at close diameter.
Bolt blanks drawn to size for hot bolting.
Cold-drawn bar shafting that runs true at temperature.
Trim parts machined from cold-drawn bar for hot valves.
Cold-drawn bar stock for pins that carry load at heat.
Cold-drawn bar parts for fittings and probes.
Cold-drawn bar held to size for gauge components.
Cold-drawn bar hardware machined for in-vessel duty.
Detailed technical information including chemical composition, mechanical properties, standards and available dimensions.
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 cold-drawn bar, while niobium slows its coarsening.
Iron balances the matrix, and the nickel plus cobalt floor keeps this cold-drawn bar austenitic. The full composition table on the Inconel X-750 material page lists every element against its ASTM limit.
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.
Design work leans on the published figures for this grade, and density sits at 8.28 g/cm³. Moreover, the magnetic behaviour of this cold-drawn 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.
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 |
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.
Because ASTM B637 prints its own scope, the cold-drawn bar ranges below follow that text rather than one house rule. For that reason, state the cold-drawn bar diameter, the band and the ordered length on the enquiry.
| Product Form | Typical Supply Range |
|---|---|
| Cold-drawn bar | 3-80 mm diameter to ASTM B637 |
| Cold-drawn hex bar | 3-40 mm across flats, drawn to band |
| Cold-drawn square bar | 3-40 mm across flats, drawn to band |
| Cold-drawn and ground bar | 3-60 mm diameter held to a tighter band |
Cut lengths of this cold-drawn 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.
Finish follows the operation that comes next rather than a catalogue default. Moreover, we agree the surface of this cold-drawn bar with your order.
| Surface Condition | Typical Use |
|---|---|
| Cold drawn | Close size control and a brighter surface on this cold-drawn bar. |
| Peeled | A machined skin gives this cold-drawn bar uniform diameter for further turning. |
| Centerless ground | Tight diameter and straightness on this cold-drawn bar used as shafting. |
For a different profile, the same grade comes as bright bar, centreless ground rod and polished bar.
Get detailed information including specifications, standards, dimensions and material properties.
Eight steps carry a cold-drawn bar enquiry from the first message to the delivered lot. Therefore, state the cold-drawn bar duty first, and the cycle then follows from it.
Give the service temperature, the load and the medium that the cold-drawn bar part will meet.
Tell us that the order is X-750 cold-drawn bar rather than hot-finished bar or wire.
We agree Type 1, Type 2 or Type 3 for the cold-drawn bar against that duty.
The quotation states the cold-drawn bar price per kilogram, the lead time and the certificate set.
Grade, cold-drawn bar diameter, band and inspection level enter the order acknowledgement.
The melt shop weighs the charge and takes the cold-drawn bar heat through melting and remelting.
The cold-drawn bar passes the ordered drawing passes, the heat treatment and release testing.
Finally, the desk tracks the cold-drawn bar shipment and forwards the documents ahead of arrival.
Our production and inspection processes are certified to international standards, and every delivery ships with EN 10204 3.1 mill test certificates.
Quality Management System
Pressure Equipment Directive
Material Standards Compliance
Mill Test Certificates
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.
Type 2 suits cold-drawn 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.
Cold-drawn bar runs from 3 to 80 mm diameter to ASTM B637, and drawn hexagon covers 3 to 40 mm across flats.
No. The drawn stock still needs the ordered solution treatment and age. In addition, the cold work raises the tensile floor before aging starts.
It adds a stabilising hold near 843 °C after the solution treatment of the cold-drawn bar. Consequently, the Type 1 route protects creep life above 593 °C at some cost in tensile strength.
Yes. The AMS bar documents cover solution-treated and equalized conditions for buyers who machine the cold-drawn bar parts first and age them afterwards.
A single piece or one coil covers most stock sizes of cold-drawn bar, so a short cut is enough for a trial.
We quote cold-drawn bar mainly on FOB terms, and EXW or CIF follow on request.
Stock cold-drawn bar ships in 7 to 15 days, and made-to-order material runs about 25 days.
Yes. Every heat ships with an EN 10204 3.1 certificate, and we arrange 3.2 endorsement on request.
Send the cold-drawn bar diameter, the band and the service temperature. The quotation carries the cold-drawn bar price, the lead time and the certificate set. Because the cycle decides the acceptance level for this cold-drawn bar, name the Type at enquiry.
A single X-750 cold-drawn bar proves the grade before a plant-wide commitment.