Chuck Metals is a reputable manufacturer and supplier based in Singapore, Pulau Ujong, known for delivering top-notch Haynes 188 Bars and Rods. These products are specifically designed to excel in high-temperature environments, offering impressive strength, oxidation resistance, and durability. This cobalt-based superalloy shines in extreme heat and corrosive settings, making it a go-to choice for industries like aerospace, gas turbines, and industrial furnaces. Chuck Metals is committed to ensuring that every Haynes 188 product adheres to rigorous quality standards, providing reliable solutions for critical operations that require long-lasting performance and dependability under thermal stress.
The Haynes 188 Bars and Rods are primarily made of cobalt, enhanced with nickel, chromium, and tungsten, which give them exceptional oxidation resistance up to 1095°C (2000°F). This alloy boasts excellent creep strength, thermal stability, and resistance to both carburization and sulfidation. Its well-balanced composition ensures high mechanical strength and outstanding metallurgical stability during extended high-temperature use.
| 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 |
| Grade | C | Mn | P | S | Si | Ni | Cr | Fe | W | B | La |
| Haynes 188 | .05 – .15 | 1.25 max | .020 max | .015 max | .20 – .50 | 20.0 – 24.0 | 21.0 -23.0 | 3.0 max | 13.0 -15.0 | .015 max | .03 – .15 |
| Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| ksi – 65 , MPa – 446 | ksi – 140 , MPa – 963 | 55 % |
| STANDARD | WERKSTOFF NR. | UNS |
| Haynes 188 | 2.4683 | R30188 |
Haynes 188 bars and rods exhibit excellent high-temperature strength and oxidation resistance, maintaining structural integrity up to 2000°F (1093°C), making them ideal for aerospace, turbine, and high-performance engine applications.
To maintain Haynes 188 bars, regularly inspect for corrosion or wear, avoid excessive temperature fluctuations, clean with non-abrasive methods, and store in a dry, cool environment to prevent degradation.
Yes, Haynes 188 rods can be customized in size and length according to specific requirements. Manufacturers can provide tailored solutions based on customer specifications for industrial applications.
These bars and rods find extensive applications in aerospace engine components, afterburner parts, industrial furnace fixtures, and heat-treating equipment. Their ability to maintain strength and resist oxidation in harsh conditions makes them essential for high-performance applications where durability and thermal stability are crucial.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Chuck Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Singapore, Singapore
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