GH4698 corresponds to the old brand GH698, which is a base high-temperature alloy reinforced with elements such as aluminum, titanium, Mo, and niobium. It is developed on the basis of supplementary alloying of GH4033 alloy. However, compared with GH4033 alloy, aluminum, titanium, and Mo are added. , niobium content, reduced chromium content, high lasting strength and good comprehensive performance in the range of 500℃-800℃, and stable structure for long-term use.
Specifications | In stock, can be customized according to customer requirements |
Form | Bar，Plate |
Classification | Superalloy |
Density | Melting Point | thermal conductivity | Specific heatcapacity | elastic modulus | Resistivity | Linear expansion coefficient |
g/cm3 | ℃ | λ/(W/m·°℃) | J/kg:·℃ | GPa | uΩ ·m | a/10-6℃-1 |
8.32 | 1340℃-1365℃ | 10.2(100℃) |
|
| 1.32 | 12.1(20~100℃) |
Alloy | % | Fe | Cr | Ni | C | Mn | Si | Mo | Al | Ti | Nb | P | Cu | Ce | B | S |
GH4698 | Min | - | 13 | Balance | - | - | - | 2.8 | 1.3 | 2.35 | 1.8 | - | - | - | - |
|
Max | 2 | 16 | 0.08 | 0.4 | 0.6 | 3.2 | 1.7 | 2.75 | 2.2 | 0.015 | 0.07 | 0.02 | 0.005 | 0.007 |
Alloy status | Tensile strengthEbMPa2 | yield strength RP0.2 N/mm | Elongation A/%≥ | HBS |
solution treatment | ≥1120 | ≥705 | ≥17 | ≥293 |
GH4698 alloy barsare widely used in the manufacture of important load-bearing parts such as turbine discs, compressor discs, guide vanes, and load-bearing rings of aero engines. The working temperature can reach 750℃-800℃. After long-term aging at 650℃-750℃ for 100-1000h, the structure of GH4698 alloy will be stable and no harmful items will precipitate.
GH4698 nickel alloyis used to make engine components for aircraft and rockets. GH4698 nickel alloy is also used to manufacture structural and decorative parts of aircraft.
In the chemical industry, GH4698 nickel alloy is widely used in the manufacture of high-temperature equipment and pipes. GH4698 nickel alloy is also used to manufacture chemical reactors, distillation towers, and other equipment.
In the energy industry, GH4698 nickel alloy is used to manufacture equipment such as high-temperature steam engines and gas turbines. GH4698 nickel alloy is also used to manufacture components in nuclear reactors.
The manufacturing process of stainless steel and alloys involves multiple steps to transform raw materials into flat,rectangular sheets or plates made of stainless steel and alloys. Here are a few key steps for stainless steel and alloys:
Molten stainless steel and alloys are cast into large ingots or billets through a casting process.
During the hot rolling process,the thickness of the steel ingot is gradually reduced and elongated to form long strips or coils.
Annealing involves heating stainless steel and alloys to a specific temperature and then slowly cooling it.
Cold rolling is carried out through rolling mills to reduce thickness to meet customer specifications.
Wuxi Walmay Metal Co,Ltd is a comprehensive processing group of Alloy Steel、Forged Parts Fitting、Titanium Alloy、Stainless Steel、Special Welding Wireseries， and more than 800 specifications.
Our group has been engaged in the domestic and global market for more than ten years with rich steel experience and can offer professional advice for customers inapplications with different materials.
Machine cutting
Sheet cutting
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Plank leveling
polishing
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Bar and structural cutting
polishing
Heat treatment and annealing: Wuxi Walmay Metal can heat treat certain 400 series stainless steels.
Material Reliability Identification (PMI): Wuxi Walmay Metal can complete this testing in-house.
Ut Testing: Ultrasonic testing (UT) uses high-frequency sound energy to inspect and measure stainless steel products.
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