Standard: GB, AISI, ASTM/ASME, DIN, EN, JIS
Shapes: Plates/ Sheets
Width: 0mm ~ 2500mm
Surface Treatment(Finish): Mirror, Brushed, Mill Finished, Polished, Pickling,Pickling + sandblasting
| Inconel | Density (g/cm3) | Melting point (℃) | Elongation A5 (%) | Tensile Strength (Rm N/mm2) | Yield Strength (RP0.2N/mm2) | Rockwell Hardness |
| 751 | 8.25 | 1390~1425 ℃ | 20 | 1150 | 850 | ≥33 HRC |
Type: Cold finished(cold rolled), Hot finished( Hot rolled)
Thickness of Plates: 4.76mm ~ 60mm (Hot Rolled), Width: 0mm ~ 2500mm
Thickness of Sheet: 1.00mm ~ 4.76mm (Cold Rolled), Width: 0mm ~ 1500mm
Surface Treatment(Finish): Mirror, Brushed, Mill Finished, Polished, Pickling,Pickling + sandblasting
Edge:Grinding, cutting
Melting method: Vacuum Induction Melting (VIM) + Electroslag Remelting (ESR); or VIM + VAR
Inspection: TUV, SGS,
Packing: Wooden box, Waterproof polybag
Application of Inconel 751:
| Application Area | Plain English Explanation (Where is it used?) | Real-World Examples |
|---|---|---|
| High-Performance Engines (The #1 Use) | This is its home turf. It is used for exhaust valves in engines that run extremely hot—like in heavy-duty diesel trucks, high-performance sports cars, and turbocharged/supercharged engines. It’s growing in popularity as engines get smaller and run hotter to meet efficiency standards . | Exhaust valves, valve seats . |
| Aerospace & Power Generation | While its primary fame is in engines, its strength and corrosion resistance also make it useful for other high-stress, high-temperature components. | Turbine blades, springs, fasteners, and components for nuclear reactors . |
| Industrial Heating | It can be used for parts inside industrial furnaces and heat-treating equipment that must withstand both high heat and corrosive gases. | Furnace components,热电偶套管 (thermowell tubes) in corrosive atmospheres |
Inconel 751 is the “tough guy” of the nickel-based superalloy family, specifically engineered for one of the most punishing jobs in engineering: the exhaust valve in high-performance engines.
Think of it as the “X-750’s stronger brother.” It is a modified version of the popular Inconel X-750, with a slightly different composition that delivers increased strength and durability at scorching temperatures up to 870°C (1600°F). While X-750 is a great all-rounder, X-751 is the specialist built to take the relentless pounding inside a diesel or turbocharged engine.
Core Strengths: Why It’s the “Valve Specialist”
Peak High-Temperature Strength: Its main job is to resist “creep” and deformation in the hottest part of an engine. It maintains its grip and strength even when red-hot, preventing the valve from stretching or failing.
Excellent Corrosion Resistance (Especially to “Lead”): Engine exhaust is a chemical nightmare, containing lead oxide, sulfur, bromine, and chlorine from fuel and combustion. Inconel 751 was formulated to resist this specific type of high-temperature chemical attack.
Thermal Fatigue Resistance: It can handle the constant, rapid heating and cooling cycle of an engine firing thousands of times per minute without cracking.
Core Value
Inconel 751 is the specialist’s choice. It builds on the excellent foundation of Inconel X-750 and optimizes it for the single most demanding application: the engine exhaust valve. If a component needs to live inside a furnace of hot, corrosive gas while being hammered open and closed millions of times, Inconel 751 is the material that gets the job done