GH5188 Uns High Temperature Alloy Thermal Strength Oxidation Resistance
KX GH5188 Uns Light Rod Plate Structural Operating Temperature Range For High Temperature Alloy
Product Description and Application
GH5188 is also known as UNSR30188, W.N.2.4683,Hayness 188
GH5188 is solid solution strengthened cobalt base superalloy. Add 14% tungsten for solid solution strengthened and make the alloy have excellent high temperature thermal strength. Add high content chromium and trace lanthanum and make the alloy have good oxidation resistance at high temperature and satisfactory forming, welding and etc technological properties. It is suitable for the manufacture of aeroengine parts requiring high strength below 980℃ and oxidation resistance below 1100℃. The alloy is widely used abroad in the manufacture of high-temperature components of gas and missiles, such as combustor, tail nozzle and heat exchanger parts in the nuclear energy industry. The high temperature components that aero-engine combustion chamber flame cylinder and guide vane made of this alloy have passed long-term test and been put into production in China.
Process Performance and Requirements
- Product Fusion Process
Vacuum Induction Furnace(VIM) and Electroslag Remelting Furnace(ESR)
- Product Chemical Composition
| Alloy Grade | C | Mn | Si | P | S | Ni | Cr | Fe |
| GH5188 | 0.05-0.15 | 0.2-0.5 | ≤0.015 | ≤0.020 | ≤0.015 | 20.0-24.0 | 20.0-24.0 | ≤3.0 |
| B | Cu | La | Ag | Fb | Bi | W | Co | |
| ≤0.015 | ≤0.07 | 0.03-0.12 | ≤0.001 | ≤0.001 | ≤0.0001 | 13.0-16.0 | Rem |
- Product Physical Property
| Density | 9.09g/cm3 |
| Magnetic Energy | Nil |
- Corrosion Resistance
The alloy can be circulating test at 900℃ ↔260℃ for 200h dynamic thermal corrosion test,corroded by gas in the combustion device. The alloy corrosion resistance is better than GH3536 alloy in polluted environment containing Na2SO2 and NaCl
- Heat Treatment Institution
a) Forged bar and ring,1180℃±10℃,Choose the cooling rate to ensure the product mechanical properties ,HB≤293
b) Cold-rolled Plate and Strip,1165℃-1230℃,Rapid cooling, holding time according to the product section thickness
c) Hot-rolled Plate,1170℃-1190℃,cooling,HV≤282
- Product Mechanical Property
| Standard Number | Variety | Heat Treatment | Tensile Property | Durability | Room Temperature Hardness(HV) | Other Properties | |||||||
| θ/℃ | MPa | MPa | % | θ/℃ | MPa | r/h | % | ||||||
| ≧ |
≧ |
||||||||||||
| GJB 3317A | Hot-rolled Plate | Standard | 20 | 380 | 860 | 45 | 815 | 165 | 23 | 10 | ≤ 282 | Grain Size≧Grade 4 | |
| 927 | 76 | 23 | 15 | ||||||||||
| Q/5B 4003 | Thin Plate | Standard | 20 | 380 | 860 | 45 | 927 | 76 | 23 | 15 | --- |
Bend,resist oxidation |
|
| 650 | 250 | 620 | 40 | ||||||||||
| Q/5B 4002 | Strip | ≤0.51 | 20 | 380 | 860 | 40 | 927 | 62 | 23 | 8 | --- |
Bend 180°and resist oxidation |
|
| 650 | 250 | 620 | 40 | ||||||||||
| ＞0.51 | 20 | 380 | 860 | 45 | 927 | 76 | 23 | 5 | --- | ||||
| 650 | 250 | 620 | 50 | ||||||||||
| Q/5B 40222 | Bar | Standard | 20 | 380 | 860 | 45 | 927 | 90 | 23 | 15 | HB≤302 |
Resist oxidation |
|
| Q/5B 4014 | Ring forging | 20 | 380 | 860 | 45 | 927 | 83 | 23 | 15 | HB≤293 |
Resist oxidation |
||
|
① Endurance test at any temperature |
|||||||||||||
- Productive Process
-
Professional Customization
| Cold-drawn Wire | ¢0.3~¢18mm(Delivery in rolls or trays) |
| Hot-Rolling Wire | ¢5.5~¢20mm(Delivery in rolls) |
| Strip | thickness 0.1~4.5*width 6~350mm(Supply in rolls or straight strips) |
| Smooth Forged Rod on a Lathe |
¢60~350mm,L800-2500mm |
| Hot-rolled Burnishing | ¢20~80mm,L1000-5000mm |
| Cold Drawn and Burnishing | ¢2.5~18mm,L1000-8000mm |
| Seamless Tube | ¢1~275mm,wall thickness 0.2~30,L1000-8000mm |
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.