GH4145 Bar – Inconel X-750 UNS N07750 Nickel Alloy Bar
Product Short Description
GH4145 Bar, also known as Inconel X-750 Bar, UNS N07750 Bar and Alloy X-750 Bar, is a precipitation-hardenable nickel-chromium alloy bar designed for applications requiring high-temperature strength, oxidation resistance and good corrosion resistance. Due to its excellent mechanical strength after heat treatment, GH4145 is widely used for gas turbine components, aerospace parts, high-temperature springs, fasteners, petrochemical equipment, nuclear engineering components and industrial machinery.
SASA ALLOY supplies GH4145 bars in hot rolled, forged, peeled, turned, ground, polished and machined conditions according to customer requirements. Products can be supplied with chemical composition analysis, mechanical testing, PMI testing, ultrasonic testing, dimensional inspection, surface inspection, EN 10204 3.1 material certificate and full heat number traceability.
- Product Name: GH4145 Bar – Inconel X-750 UNS N07750 Nickel Alloy Bar
- Material Grade: GH4145 / Inconel X-750 / UNS N07750 / Alloy X-750
- Product Type: Precipitation-Hardenable Nickel-Chromium Alloy Bar
- Main Feature: High-temperature strength, oxidation resistance and good corrosion resistance
- Applications: Aerospace, gas turbine, springs, fasteners, petrochemical and nuclear engineering components
Product Parameters
| Item | Specification |
|---|---|
| Product Name | GH4145 Bar |
| Material Grade | GH4145 / Inconel X-750 / UNS N07750 / Alloy X-750 |
| Material Type | Precipitation-Hardenable Nickel-Chromium Alloy |
| Product Form | Round Bar, Forged Bar, Peeled Bar, Turned Bar, Ground Bar, Custom Machined Bar |
| Diameter | 6 mm – 300 mm or customized |
| Length | 500 mm – 6000 mm or cut to size |
| Surface Condition | Hot Rolled, Forged, Peeled, Turned, Ground, Polished, Machined |
| Heat Treatment | Solution Treated, Aged, Precipitation Hardened or as required |
| Standard | UNS N07750, ASTM, AMS 5667, AMS 5668, AMS 5670, EN, DIN, JIS, GB or customer specification |
| Inspection | Chemical Analysis, Mechanical Test, PMI Test, UT Test, Hardness Test, Dimensional Inspection |
| Certificate | EN 10204 3.1 Material Certificate available |
| Processing Service | Cutting, Sawing, Turning, Grinding, Polishing, CNC Machining, Custom Size Processing |
Chemical Composition
GH4145 / Inconel X-750 is a nickel-chromium alloy strengthened by titanium, aluminum and niobium additions. The following chemical composition is for general reference only. Final composition should be confirmed according to the applicable standard, purchase order and mill test certificate.
| Element | Ni + Co | Cr | Fe | Ti | Al | Nb + Ta | C | Mn | Si | S | Cu |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Content % | ≥70.00 | 14.00 – 17.00 | 5.00 – 9.00 | 2.25 – 2.75 | 0.40 – 1.00 | 0.70 – 1.20 | ≤0.08 | ≤1.00 | ≤0.50 | ≤0.010 | ≤0.50 |
Mechanical Properties
Mechanical properties of GH4145 Bar may vary depending on diameter, heat treatment condition, production method and applicable standard. Precipitation hardening gives this alloy excellent strength and creep resistance at elevated temperatures.
| Condition | Tensile Strength | Yield Strength | Elongation | Hardness | Typical Use |
|---|---|---|---|---|---|
| Solution Treated + Aged | According to standard | According to standard | According to standard | According to condition | Aerospace, turbine and high-temperature parts |
| Forged / Aged | According to order requirement | According to order requirement | According to order requirement | According to order requirement | Heavy-duty bars, fasteners and spring components |
| Machined / Custom | According to drawing | According to drawing | According to drawing | According to drawing | Precision machined components |
Note: Final mechanical properties should be confirmed according to ASTM, AMS, customer specification, heat treatment condition and material test certificate.
Common Size Table
| Diameter | Length | Surface | Availability |
|---|---|---|---|
| 6 – 20 mm | 500 – 3000 mm | Hot Rolled / Ground / Polished | Production / Customized |
| 20 – 80 mm | 1000 – 6000 mm | Hot Rolled / Peeled / Turned | Production |
| 80 – 150 mm | 1000 – 6000 mm | Forged / Turned / Ground | Made to Order |
| 150 – 300 mm | Cut to Size | Forged / Machined | Custom Production |
Different Specifications Comparison
| Type | Size Range | Surface Condition | Typical Use |
|---|---|---|---|
| GH4145 Round Bar | 6 – 100 mm | Hot Rolled / Peeled / Ground | Fasteners, springs, turbine and industrial components |
| GH4145 Forged Bar | 80 – 300 mm | Forged / Turned / Machined | Aerospace, gas turbine and heavy-duty parts |
| GH4145 Machined Bar | According to drawing | Ground / Polished / CNC Machined | Precision machined high-temperature components |
| GH4145 Cut Bar | Cut to length | Sawed / Ground | Machining blanks and maintenance replacement parts |
Equivalent Standards and International Names
GH4145 is commonly considered equivalent to Inconel X-750 / UNS N07750 type nickel alloy. Customers may search for GH4145 Bar, Inconel X-750 Bar, Alloy X-750 Bar, UNS N07750 Bar or precipitation-hardened nickel alloy bar.
| Country / Standard | Common Name | Equivalent Grade |
|---|---|---|
| China | GH4145 | Nickel-Chromium High Temperature Alloy |
| UNS | UNS N07750 | Inconel X-750 |
| Commercial Name | Inconel X-750 / Alloy X-750 | GH4145 Equivalent |
| AMS | AMS 5667 / AMS 5668 / AMS 5670 | X-750 Nickel Alloy Bar |
| Material Family | Precipitation-Hardened Nickel Alloy | High Temperature Alloy Bar |
Production Process Flow
The production process of GH4145 Bar requires strict control of raw material selection, melting, hot working, heat treatment, machining and inspection to ensure stable high-temperature performance and mechanical reliability.
| Process Step | Description | Quality Control Point |
|---|---|---|
| Raw Material Selection | Select qualified GH4145 / Inconel X-750 raw materials | Raw material certificate and traceability |
| Melting | Control alloy chemistry and impurity elements | Chemical composition analysis |
| Forging / Hot Rolling | Produce bar shape and improve internal structure | Temperature control, forging ratio and dimensional control |
| Heat Treatment | Solution treatment and aging treatment as required | Temperature, holding time and cooling method |
| Inspection | Final inspection before shipment | PMI, UT, dimension, surface and certificate review |
Product Inspection
1. Chemical Composition Inspection
Chemical composition analysis is performed to verify nickel, chromium, titanium, aluminum, niobium and other alloying elements. This helps confirm that the bar meets GH4145 / Inconel X-750 / UNS N07750 requirements.
2. Mechanical Properties Testing
Tensile strength, yield strength, elongation and hardness can be tested according to customer requirements and applicable standards.
3. Ultrasonic Testing
UT testing can be performed to check internal soundness of forged or large-size GH4145 bars, especially for aerospace, gas turbine and critical industrial components.
4. PMI Testing and Dimensional Inspection
PMI testing helps verify material grade and prevent material mix-up. Diameter, length, straightness, tolerance and surface condition are inspected before shipment.
Product Packaging
SASA ALLOY provides export-grade packaging for GH4145 Bars to protect the material during sea, air and land transportation.
- Bundle Packing: Suitable for long bars and batch shipments.
- Plastic Film Protection: Applied to polished or machined surfaces to reduce scratches.
- Waterproof Wrapping: Used to protect bars from moisture during transportation.
- Wooden Case Packaging: Suitable for precision machined bars or export shipments.
- Clear Marking: Grade, heat number, size, quantity and customer PO number can be marked on labels.
Applications
GH4145 Bar is widely used in high-temperature and high-strength applications where oxidation resistance, corrosion resistance and mechanical stability are required.
| Industry | Typical Applications | Why GH4145 Is Used |
|---|---|---|
| Aerospace | Engine parts, fasteners, springs and high-temperature components | High strength and oxidation resistance at elevated temperatures |
| Gas Turbine | Turbine parts, bolts, rings, springs and support parts | Good creep resistance and precipitation hardening performance |
| Petrochemical | Valve parts, fasteners, shafts and heat-resistant components | Corrosion resistance and mechanical stability |
| Nuclear Engineering | Springs, fasteners and special components | Reliable performance under demanding operating conditions |
| Industrial Machinery | High-temperature mechanical parts and custom machined components | Stable performance and good machinability |
Why Choose SASA ALLOY?
- Professional supplier of GH4145 / Inconel X-750 / UNS N07750 nickel alloy bars
- Customized diameter, length, surface condition and heat treatment available
- Support for ASTM, AMS, UNS, EN, DIN, JIS, GB and customer specifications
- Material traceability with heat number control
- EN 10204 3.1 material certificate available
- Chemical analysis, mechanical testing, PMI testing, UT testing and dimensional inspection support
- Export packaging suitable for international transportation
- Suitable for aerospace, gas turbine, petrochemical, nuclear engineering and high-temperature industrial applications
FAQ
What is GH4145 Bar?
GH4145 Bar is a precipitation-hardenable nickel-chromium alloy bar commonly considered equivalent to Inconel X-750 / UNS N07750. It is used for high-temperature, high-strength and oxidation-resistant applications.
Is GH4145 the same as Inconel X-750?
GH4145 is commonly regarded as the Chinese designation corresponding to Inconel X-750 / UNS N07750 type alloy. Final equivalence should be confirmed by chemical composition, standard and mill test certificate.
Can SASA ALLOY provide custom size GH4145 bars?
Yes. SASA ALLOY can supply GH4145 bars in customized diameter, length, surface condition and heat treatment condition according to customer requirements.
What inspections can be provided?
Chemical analysis, mechanical testing, PMI testing, UT testing, hardness testing, dimensional inspection and EN 10204 3.1 material certificate can be provided according to order requirements.
What are the main applications of GH4145 Bar?
GH4145 Bar is mainly used for aerospace components, gas turbine parts, high-temperature springs, fasteners, petrochemical equipment, nuclear engineering components and industrial machinery.
Contact Us
If you are looking for GH4145 Bar, Inconel X-750 Bar, UNS N07750 Bar or customized high-temperature nickel alloy bars, please contact SASA ALLOY with your required grade, standard, diameter, length, heat treatment condition, surface condition, quantity and inspection requirements. Our team can provide professional material solutions for high temperature nickel alloy applications.