Haynes 188 Cobalt Alloy Bars
Haynes 188 bar is a cobalt-based superalloy that combines excellent high-temperature performance with oxidation resistance, while retaining good ductility even after long-term service in the 1400–1600°F (approx. 760–870°C) temperature range. Cobalt-based alloys possess an inherent advantage over nickel-based alloys regarding high-temperature creep resistance.
Alloy 188 round bar (Material No. 2.4683) is an ideal material for withstanding extreme temperatures and harsh chemical environments. This bar is manufactured from a specialized alloy that integrates strength, ductility, and resistance to both oxidation and sulfidation.
Thanks to its outstanding properties, the Haynes 188 round bar is highly suitable for demanding applications involving high temperatures and severe operating conditions, such as gas turbines, jet engines, and industrial furnaces.
Properties of the Haynes 188
- Good strength and stability
- High heat resistance
- Excellent corrosion resistance
As a leading Haynes 188 supplier in China, our products pass strict quality control and testing and ensure that the products meet standards and customer requirements. Contact us as your Stock Distributor and Supplier.
Specification
|
Dimensions |
UNS R30188, AMS 5772, ASTM B572 |
|
Round bar size |
Diameter: 3-~800mm |
|
Hex Bar size |
2- 100 mm A/F |
|
Flat bar size |
Thickness: 2- 100 mm / Width: 10 to 500mm |
|
Square bar size |
4 to 100mm |
|
Rectangular Bars Size |
33 x 30mm to 295 x 1066mm |
|
Hollow Bar |
32mm OD x 16mm ID to 250mm OD x 200mm ID |
|
Tolerance |
H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients' requirements |
|
Finish |
Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
Chemical Composition
|
Elements |
Content (%) |
|
C |
0.05-0.15 |
|
Ni |
20.0-24.0 |
|
Co |
Bal. |
|
W |
13.0-16.0 |
|
Mn |
≤1.25 |
|
Fe |
≤3 |
|
Cr |
20.0-24.0 |
|
Si |
0.20-0.50 |
|
La |
0.02-0.12 |
|
B |
≤0.015 |
Mechanical Composition
|
Item |
Metric |
English |
|
Density |
8.9 g/cm³ |
0.32 lbs/in³ |
|
Modulus of Elasticity |
232 GPa |
33.7 Mpsi |
|
Electrical Resistivity |
101.0 µohm*m |
39.6 µohm*in |
|
Thermal Conductivity |
10.4 W/m*°K |
72 BTU*in/hr*ft²*°F |
|
Coefficient of thermal expansion |
12.1 µm/(m*°C) |
6.7 µin/(in*°F) |
|
Melting Point |
1330°C |
2425°F |
Hot Tags: Haynes 188 Cobalt Alloy Bars, UNS R30188, W.Nr. 2.4683, Alloy 188,Cobalt-Nickel-Chromium-Tungsten Alloy,Haynes 188 furnace liner
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