Phehlukwayo Metal, a reputable manufacturer and supplier located in Cape Town, South Africa, focuses on delivering top-notch Haynes 188 Bars and Rods tailored to meet the rigorous demands of various industries. Renowned for their outstanding performance in harsh conditions, these high-temperature cobalt-based alloys are crafted for strength, durability, and resistance to corrosion. Phehlukwayo Metal guarantees precision in manufacturing, compliance with international standards, and dependable delivery both locally and globally. With a strong commitment to quality and customer satisfaction, the company has positioned itself as a premier source of advanced alloy materials for industrial applications.
Haynes 188 Bars and Rods are cobalt-nickel-chromium-tungsten alloys specifically designed for remarkable high-temperature strength and oxidation resistance. Their typical composition features around 39% cobalt, 22% nickel, 22% chromium, and 14% tungsten, with small amounts of lanthanum added to boost oxidation resistance. This alloy showcases excellent tensile and creep strength, maintaining stability at temperatures up to 1095°C (2000°F). It also offers impressive ductility, hardness, and fabricability, making it perfect for forming and welding. Haynes 188 is particularly resistant to carburization, sulfidation, and thermal fatigue, even in the most demanding service 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 |
| 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.
Haynes 188 bars and rods are high-performance alloys that are traditionally used in applications demanding excellent strength along with resistance to high-temperature oxidation and corrosion. They are often used in aerospace and industrial gas turbine components, which find very high-performance applications, such as in engine parts, combustion chambers, and turbine blades. They also have applications in heat exchangers, power generation, and chemical processing, where their resistance to thermal cycling and aggressive chemicals is critical. Haynes 188’s superior weldability and strength at elevated temperatures make it suitable for both high-temperature structural and pressure-containing components in demanding industries.






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