2.4694 Alloy 751 SUH751 NiCr16Fe7TiAl N07751 Valve Alloy – Premium Age-Hardenable Valve Material
High-Temperature Resistant Valve Alloy for Advanced Gas Turbine and Industrial Valve Applications by FUSHUN SPECIAL STEEL
2.4694 Alloy 751 SUH751 NiCr16Fe7TiAl N07751 Valve Alloy Introduction and Applications
FUSHUN SPECIAL STEEL is a leading manufacturer of 2.4694 (Alloy 751, SUH751, NiCr16Fe7TiAl, N07751) age-hardenable valve alloy specifically engineered for demanding high-temperature valve applications up to 820°C. This premium valve alloy achieves exceptional strength through titanium, niobium, and aluminum precipitation hardening, making it ideal for gas turbine valves, industrial valve components, and high-stress valve applications.
As a dedicated manufacturer, FUSHUN SPECIAL STEEL specializes in producing high-quality 2.4694 Alloy 751 SUH751 valve alloy with optimized heat treatment conditions for enhanced precipitation hardening characteristics. Our advanced melting technologies ensure consistent quality and performance for large-volume production requirements in high-temperature valve manufacturing industries.
Primary SUH751 Valve Alloy High-Temperature Applications
- Gas turbine valves operating up to 820°C (1,510°F)
- Industrial valve components requiring high tensile strength up to 600°C
- High-temperature valve fasteners and bolting elements
- Aerospace valve systems with oxidation resistance requirements
- Power plant valve assemblies for steam applications
- Chemical processing equipment valves in corrosive environments
International Valve Alloy Designations and Standards
| Standard | Material Designation |
|---|---|
| EN | 2.4694 NiCr16Fe7TiAl |
| UNS | N07751 |
| JIS | SUH751 |
| Common Name | Alloy 751 |
International Recognition: 2.4694 Alloy 751 SUH751 is globally recognized across EN, UNS, and JIS standards, ensuring worldwide compatibility and acceptance in high-temperature valve manufacturing industries and aerospace applications as a premium age-hardenable valve alloy.
2.4694 Alloy 751 SUH751 Valve Alloy Chemical Composition
| Ni % | Cr % | C % | S % | Mn % | Si % | Ti % | Nb % |
|---|---|---|---|---|---|---|---|
| min 70 | 14-17 | max 0.10 | max 0.01 | max 1 | max 0.5 | 2-2.6 | 0.7-1.2 |
| Cu % | Fe % | Al % |
|---|---|---|
| max 0.5 | 5-9 | 0.9-1.5 |
2.4694 Alloy 751 SUH751 Enhanced Valve Alloy Composition: High nickel content (min 70%) provides excellent valve corrosion resistance and strength. Chromium (14-17%) ensures oxidation resistance. Titanium (2-2.6%), niobium (0.7-1.2%), and aluminum (0.9-1.5%) enable precipitation hardening for superior valve performance at high temperatures.
SUH751 Valve Alloy Physical Properties
| Property | Value |
|---|---|
| Density | 8.2 g/cm³ at 20°C |
| Melting Range | 1,390-1,430°C |
| Magnetic Permeability at 20°C | 1.0035 |
| Curie Temperature | -223°C (-369°F) |
2.4694 Alloy 751 SUH751 Mechanical Properties for Valve Applications
Condition: Solution-annealed and precipitation hardened valve alloy properties
| Temperature | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) |
|---|---|---|---|
| 20°C (68°F) | 716 | 1080 | 24 |
| 200°C (392°F) | 670 | 1020 | 27 |
| 600°C (1112°F) | 660 | 912 | 25 |
| 700°C (1292°F) | 660 | 861 | 14 |
2.4694 Alloy 751 SUH751 Valve Performance: Exceptional strength retention at elevated temperatures makes this valve alloy ideal for gas turbine and industrial valve applications. High tensile strength of 1080 MPa at room temperature combined with excellent strength retention up to 700°C ensures reliable valve performance in demanding high-temperature service conditions.
SUH751 Key Characteristics for Valve Applications
High-Temperature Valve Alloy Characteristics
- High tensile strength up to 600°C (1,110°F) for valve applications
- High creep and fatigue strength up to 820°C (1,510°F)
- High oxidation resistance up to 980°C (1,795°F)
- Excellent mechanical properties in low temperature environments
- Good corrosion resistance in high and low temperatures and high resistance against stress corrosion
- Good weldability for valve manufacturing (resistance and fusion welding)
SUH751 Heat Treatment for Valve Manufacturing
Solution Annealing
Temperature: 1080-1120°C
Cooling: Air or water quenching
Purpose: Optimal valve alloy structure
Precipitation Hardening
Temperature: 700-750°C
Duration: 16-20 hours
Cooling: Air cooling
Age-Hardening Process for Optimal Valve Performance
The two-step heat treatment optimizes 2.4694 Alloy 751 SUH751 valve alloy for demanding valve applications. Solution annealing dissolves precipitates, while precipitation hardening develops fine titanium, niobium, and aluminum precipitates that provide exceptional strength and thermal stability for valve components operating up to 820°C.
Processing Types We Provide
Hot Rolled
Premium hot rolled 2.4694 Alloy 751 SUH751 valve alloy with exceptional dimensional accuracy and superior mechanical properties for valve manufacturing. Our manufacturing process ensures consistent precipitation hardening response for optimal valve performance.
Hot Forged
Precision hot forged components with optimized grain structure for critical SUH751 valve alloy applications. As a manufacturer, we control the entire forging process for superior gas turbine and high-temperature valve components.
Available Shapes for SUH751 Valve Manufacturing
Round Bars
Precision round bars for SUH751 valve stem manufacturing
Flat Bars
High-quality flat bars for valve head manufacturing
Plates
Heavy plates for large valve component production
Wire
Precision wire for specialized valve applications
Available Sizes and Custom Manufacturing
Standard Inventory Sizes
FUSHUN SPECIAL STEEL maintains comprehensive inventory of standard 2.4694 Alloy 751 SUH751 valve alloy sizes for immediate delivery to gas turbine and industrial valve manufacturers. Our extensive stock ensures rapid response to urgent production requirements for large-volume orders.
Request our detailed stock list and competitive pricing for bulk SUH751 valve alloy orders.
Custom Size Manufacturing
Beyond standard dimensions, FUSHUN SPECIAL STEEL offers comprehensive custom manufacturing services for specialized SUH751 valve alloy applications with large-volume requirements for gas turbine and aerospace valve manufacturers.
Consult our engineering team for custom production capabilities and lead times.
FUSHUN SPECIAL STEEL Manufacturing Advantages
Advanced Melting Technology
We operate VIM, ESR, and VAR technologies, ensuring ultra-clean 2.4694 Alloy 751 SUH751 valve alloy production with precise titanium, niobium, and aluminum control for consistent precipitation hardening performance in valve applications.
In-House Heat Treatment
Our heat treatment facilities ensure stable quality and fast delivery times for SUH751 valve materials. Complete control over solution annealing and precipitation hardening processes guarantees optimal valve performance up to 820°C.
Precision Finishing Services
We provide in-house turning and grinding services for SUH751 valve alloy products, delivering ready-to-use valve components with superior surface finish and dimensional accuracy for gas turbine applications.
Large-Volume Valve Manufacturing
As a leading manufacturer, we welcome large-volume orders for 2.4694 SUH751 valve alloy and offer competitive pricing for bulk requirements for gas turbine and aerospace valve manufacturing projects.
Leading 2.4694 Alloy 751 SUH751 Valve Alloy Manufacturer
FUSHUN SPECIAL STEEL is your premier manufacturer for 2.4694 Alloy 751 SUH751 NiCr16Fe7TiAl N07751 age-hardenable valve alloy. We deliver advanced precipitation hardening solutions for demanding gas turbine and industrial valve applications with large-volume manufacturing capabilities up to 820°C service temperature.
Experience the SUH751 valve alloy advantage – contact our team today.
Ready for 2.4694 Alloy 751 SUH751 Valve Alloy Excellence?
Join gas turbine and aerospace manufacturers worldwide who trust FUSHUN SPECIAL STEEL for premium 2.4694 SUH751 age-hardenable valve alloy solutions. As your dedicated manufacturer, we provide advanced precipitation hardening technology with large-volume manufacturing capabilities for high-temperature valve applications up to 820°C.
Contact our SUH751 valve alloy specialists today for technical consultation and competitive bulk pricing.
