GH4742 (GH742) nickel-based high-temperature alloy product specifications include plates, strips, bars, wires, wires, pipes, forgings, rings, etc. The composition of GH4742 is mainly composed of nickel, chromium, molybdenum, titanium and other elements. GH4742 is used for parts and components in high-temperature and highly corrosive environments, including turbine blades, gas turbine blades, combustion chambers, high-temperature heat exchangers, chemical reactors, etc. in aviation, petroleum, chemical and other industries.
Specifications | In stock, can be customized according to customer requirements |
Form | Bar，Plate |
Classification | Superalloy |
Alloy | Co | Fe | Cr | Ni | C | B | Si | Mo | Al | Ti | Nb | P | Ce | S | Mn |
GH4742 | 9.00~11.00 | 1.00 | 13.00~15.00 | Balance | 0.04-0.08 | 0.01 | <0.30 | 4.50-5.50 | 2.40~2.80 | 2.40~2.80 | 2.40~2.80 | ≤0.015 | <0.01 | ≤0.01 | ≤0.40 |
Alloy status | Tensile strengthEbMPa2 | yield strength RP0.2 N/mm | Elongation A/%≥ | HBW |
solution treatment | ≥1200 | ≥1050 | ≥15.0 | ≥340 |
Density(g/cm3) | Melting Point(℃) | Thermal expansion coefficient((20-1000℃)) | Thermal conductivity(W/(m*K) (20℃)) |
8.19 | 1370-1420℃ | 13.2×10^-6/K | 17.7 |
GH4742 high-temperature alloyhas excellent comprehensive properties, making it widely used in the aerospace field. GH4742 alloy rods are mainly used to manufacture key components in aero engines, such as turbine disks, shafts, blades, etc. GH4742 alloy rod has excellent high-temperature strength, corrosion resistance, and oxidation resistance.
Many equipment in the petrochemical industry need to work under extreme conditions such as high temperature, high pressure, and strong corrosion.GH4742 alloy barscan be used to manufacture key equipment such as high-pressure vessels and reactors in the petrochemical industry, energy, and other fields.
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.
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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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