Haynes 188 bar is a high-performance cobalt based alloy made of cobalt, nickel, chromium and tungsten. It handles heat and corrosion better than most materials in extreme conditions. With strong resistance to oxidation up to 2000°F and protection against sulfate corrosion, it performs well under stress. Parag Metal offers top-quality Haynes 188 round bars that meet demanding mechanical needs. In annealed form, it delivers a tensile strength of 125 ksi. In spring, it reaches a temperature of up to 200 ksi. It’s used in both low and high temperatures, ranging from -300°F to 2000°F.
This alloy resists hot corrosion, even in harsh environments like those with molten chloride salts or sulfation gases. It maintains its strength at high temperatures and does not degrade quickly when subjected to heat or stress over time. It is dependable for heavy-duty industrial applications and versatile enough to be bent and cut without losing strength.
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Haynes 188 bar is used in gas turbines, heat exchangers, aerospace parts, and furnace components. Its high heat tolerance makes it great for aircraft engine parts. It meets standards like ASTM 5772 and ASME S5772. It is available in dimensions such as EN, DIN, JIS, ASTM, BS, ASME, and AISI. Haynes 188 round bar comes in sizes from 3 mm to 800 mm with tolerances like H8 to H13 and K9 to K12. Finishes include black, polished, rough-turned, matte, or bright.
Every alloy 188 bar undergoes chemical, mechanical, and non‑destructive testing. We maintain a ready stock of bright, cold‑finished round bars. As a round bar supplier in India, we conduct various tests such as tensile strength, hardness, and composition, and ship promptly worldwide. For reliable and certified Haynes 188, contact us today to discuss stock availability, pricing, and custom finishes.
Excellent high-temperature strength, maintaining performance up to 2100°F (1150°C).
Outstanding oxidation and corrosion resistance, even in aggressive environments.
Superior creep and fatigue resistance, ideal for gas turbines and aerospace components.
Dimensional stability under thermal cycling.
Durable and long-lasting, reducing maintenance and replacement costs.
Used in aerospace for gas turbine components exposed to high temperatures.
Applied in power generation for turbine blades, discs, and combustion chamber parts.
Used in chemical and petrochemical industries for high-temperature process equipment.
Employed in furnace and heat treatment applications requiring resistance to oxidation and creep.
Used in marine engineering for engine components operating under extreme heat and corrosive conditions.
| Standards | ASTM 5772, ASME S5772 |
|---|---|
| Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Wire | Thickness starting from 0.05mm |
| Round Bar Size | Diameter: 3 ~ 800mm |
| Hex Bar Size | 2 – 100mm A/F |
| Flat Bar Size | Thickness: 2 – 100mm / 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 |
| STANDARD | WERKSTOFF NR. | UNS |
|---|---|---|
| Haynes 188 | 2.4683 | R30188 |
| C | MN | P | S | Si | Cr | Ni | Mo | Cu | Co | Cb | Ti | B | Fe |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| .05 -.15 | 1.25 max | .020 max | .015 max | 20- .50 | 21.0 -23.0 | 20.0 -24.0 | bal | .015 max | 3.0 max |
| Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
|---|---|---|
| ksi – 65 , MPa – 446 | ksi – 140 , MPa – 963 | 55 % |
| Size (in.) | WT / ft |
|---|---|
| 5/16″ | 0.290 |
| 9/16″ | 0.930 |
| 7/16″ | 0.560 |
| 13/16″ | 1.950 |
| 1″ | 2.90 |
| 15/16″ | 2.625 |
| 1-1/16″ | 3.30 |
| 1-1/4″ | 4.625 |
| 1-1/8″ | 3.700 |
| 1-5/16″ | 5.100 |
| 3/16″ | 0.104 |
| 1-7/16″ | 6.100 |
| 1-3/8″ | 5.625 |
| 1-1/2″ | 6.625 |
| 1-3/4″ | 9.030 |
| 1-5/8″ | 7.800 |
| 1-7/8″ | 10.400 |
| 2-1/4″ | 14.920 |
| 2″ | 11.80 |
| 2-3/8″ | 16.920 |
| 3″ | 26.53 |
| 2-1/2″ | 18.42 |
| Size | Kgs / Mtr |
|---|---|
| 1″ | 3.0970 |
| 24 mm | 3.0543 |
| 20 mm | 2.0470 |
| 25 mm | 3.0871 |
| 27 mm | 4.0490 |
| 26 mm | 4.0170 |
| 1 to 1/8″ | 5.0033 |
| 1 to 1/4″ | 6.0349 |
| 30 mm | 5.0548 |
| 32 mm | 6.0314 |
| 1 to 3/8″ | 7.0550 |
| 35 mm | 7.0553 |
| 36 mm | 7.0999 |
| 7/8″ | 3.0038 |
| 38 mm | 8.0903 |
| 22 mm | 2.0979 |
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