Table of Contents
- Nimonic Round / Hex / Square Bars Overview
- Technical Specifications
- Nimonic Materials and Key Properties
- Types of Nimonic Bars: Round, Hexagon & Square Profiles
- Key Advantages of Nimonic Bars
- Key Applications of Nimonic Round, Hex & Square Bars
- Quality Testing & Inspection
- Global Export Markets
- Frequently Asked Questions
- Contact Aurum Overseas
Nimonic Round / Hex / Square Bars Supplier & Exporter
Aurum Overseas is a trusted Nimonic Round / Hex / Square Bars Supplier stocking high-performance nickel-chromium superalloy stock. Our inventory delivers high creep strength and thermal oxidation resistance for gas turbine blades, high-temperature fasteners, and thermal processing equipment operating under extreme mechanical stress.
As a certified Nimonic Round / Hex / Square Bars Exporter, we supply solution-annealed and age-hardened Nimonic bar profiles. Select from precision round bars, heavy square billets, and hex stock available in standard length options or custom cut-to-size pieces with complete mill traceability.
Exported across the USA, Canada, Mexico, Germany, United Kingdom, France, Italy, Netherlands, Belgium, Spain, Poland, UAE, Saudi Arabia, Qatar, Kuwait, Oman, and Bahrain.
Technical Specifications
| Technical Parameter | Specification Details |
|---|---|
| Material Specifications | BS HR 1, BS HR 601, AMS 5707, DIN 17752, ISO 9723 |
| Material Grades | Nimonic 75 / Alloy 75 (UNS N06075), Nimonic 80A / Alloy 80A (UNS N07080), Nimonic 90 / Alloy 90 (UNS N07090) |
| Available Profiles | Round (Bar & Rod), Hexagon (Hex Bar), Square (Square Bar & Billet) |
| Diameter / Cross-Section Size | 5.0 mm to 250 mm (0.20" to 10.0") |
| Length Options | 1,000 mm to 6,000 mm, Custom Cut-to-Length |
| Surface Finishes | Bright, Forged |
| Heat Treatment Conditions | Solution Annealed, Precipitation Hardened (Age Hardened) |
| Dimensional Tolerances | ISO h8, h9, h10, ASTM A484 / BS standards |
Nimonic Materials and Key Properties
| Grade | Key Features | Primary Applications |
|---|---|---|
| Nimonic 75 | Solid-solution strengthened; high oxidation and scaling resistance up to 1000°C. | Combustion cans, furnace hearth rails, thermal shrouds. |
| Nimonic 80A | Titanium & aluminum precipitation-hardened; high creep-rupture strength up to 815°C. | Gas turbine spindle bolts, marine diesel exhaust valves. |
| Nimonic 90 | Cobalt-base strengthened; superior yield strength and thermal shock resistance up to 920°C. | Turbine disc rings, hot-work die inserts, high-temp springs. |
Types of Nimonic Bars: Round, Hexagon & Square Profiles
Aurum Overseas supplies certified Nimonic 75, 80A, and 90 bars in round, hexagon, and square profiles for high-temperature gas turbine and aerospace applications.
Nimonic Round Bars
Nimonic Hexagon Bars
Nimonic Square Bars
Key Advantages of Nimonic Bars
High Creep-Rupture Strength
Retains solid dimensional stability and load capacity under continuous stress up to 920 °C (1688 °F).
Superior Oxidation Resistance
High chromium content forms a tightly adherent surface oxide scale that prevents hot-gas corrosion and scaling.
Precipitation Hardened Hardness
Titanium and aluminum precipitation hardening gives Nimonic 80A and 90 high yield strength and wear resistance.
Thermal Shock Durability
Withstands rapid thermal cycling without surface micro-cracking or mechanical distortion.
Key Applications of Nimonic Round, Hex & Square Bars
| Industry Sector | Primary Components | Benefit |
|---|---|---|
| Gas Turbines | Turbine blades, rotor disks, nozzle guide vanes | Resists centrifugal creep strain and hot gas oxidation during peak power output. |
| Marine & Defense | Marine engine exhaust valves, turbocharger shafts | Withstands heavy thermal cycling and hot corrosion from heavy fuel oil combustion. |
| Nuclear Power | High-temperature spring coils, tube supports | Maintains high yield strength under intense radiation and heat without stress relaxation. |
| High-Temp Tooling | Hot-extrusion die inserts, furnace push-rods | High resistance to thermal shock and mechanical wear under repeated hot press loads. |
Quality Testing & Inspection
Every order supplied by your Nimonic Round / Hex / Square Bars Supplier meets strict international aerospace and industrial quality controls:
- Mill Test Certificates: Full compliance with EN 10204 3.1 documentation verifying chemical composition, heat treatment parameters, and heat batch numbers.
- Mechanical & Grain Size Testing: Batch checks confirm tensile strength, yield strength, stress-rupture properties, and grain size uniformity.
- Non-Destructive Testing (NDT): 100% ultrasonic and dye penetrant testing ensures internal soundness and absence of surface defects across all bar sizes.
Global Export Markets
As an established Nimonic Round / Hex / Square Bars Exporter, Aurum Overseas supplies fully certified Nimonic 75, 80A, and 90 nickel superalloy bars to global aerospace, gas turbine, and high-temperature engineering centers:
USA
Canada
Mexico
Germany
United
Kingdom
France
Italy
Netherlands
Belgium
Spain
Poland
UAE
Saudi
Arabia
Qatar
Kuwait
Oman
Bahrain
Frequently Asked Questions
Nimonic 75 relies on solid-solution strengthening for oxidation resistance up to 1000 °C. Nimonic 80A adds precipitation hardening for creep strength up to 815 °C. Nimonic 90 adds cobalt for maximum load-bearing strength up to 920 °C.
We supply Nimonic round, hex, and square bars strictly in Bright (centerless ground/drawn) and Forged finishes to suit precision turning or heavy forging operations.
Yes. Nimonic 80A and 90 are typically supplied in the solution-treated condition for easier machining and can be age-hardened afterward to achieve maximum mechanical properties.
Contact Aurum Overseas
Aurum Overseas supplies certified Nimonic 75, 80A, and 90 round, hex, and square bars for high-temperature gas turbines, aerospace powerplants, and industrial thermal equipment.
Contact our technical sales team for live stock availability, custom cutting, or formal quotes: