Phehlukwayo Metal is a reputable manufacturer and supplier located in Cape Town, South Africa, focusing on high-performance metal products like Stainless Steel 347 Hollow Bar. With a strong dedication to quality and customer satisfaction, Phehlukwayo Metal caters to a wide array of industries throughout South Africa and beyond. The company has built a solid reputation for its precision engineering, dependable supply chain, and knowledgeable technical support. One of its standout offerings, the Stainless Steel 347 Hollow Bar, is known for its durability and corrosion resistance, making it perfect for tough environments. Phehlukwayo Metal guarantees that all its products comply with international safety and performance standards.
Stainless Steel 347 Hollow Bar is an austenitic stainless steel that’s stabilized with columbium (niobium), which boosts its resistance to intergranular corrosion. Its typical chemical makeup consists of 17–19% chromium, 9–13% nickel, along with trace amounts of columbium and tantalum. This material boasts impressive mechanical properties, featuring a tensile strength of about 515 MPa, a yield strength of 205 MPa, and an elongation of 40%. It retains its mechanical integrity even at high temperatures, making it a great choice for high-heat applications. Additionally, this stainless steel grade offers good creep and stress-rupture resistance, particularly in oxidizing environments.
| Standard | ASME, ASTM, GB, API, DIN, AISI, SUS, EN, UNS |
|---|---|
| Inconel Square Size | 33 x 30mm to 295 x 1066mm |
| Square Bar Surface | Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline |
| Inconel Square Bar Finish | centreless ground, Cold (bright) drawn, smooth turned, hot rolled, slit rolled edge, peeled, Rough Turned, hot rolled annealed, Polish, Bright, Centreless Ground & Black, Grinding |
| Inconel Square Bar Tolerance | H9, H8, H11, H10, H13K9, H12, K11, K10, K12 or as per clients’ requirements |
| Alloy Square bar Condition | Hardened & tempered, annealed |
| Alloy Square Bar Technique | Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
| Inconel Square Bars Type | SIZES (mm) | SIZES (Inches) | ISO Tolerance |
|---|---|---|---|
| Alloy Cold Drawn and Polish Square Bars | 3.00 – 75.00 | 1/8″ – 3.00″ | h8-h9-h10-h11 |
| Alloy Cold Drawn and Ground Square Bars | 10.00 – 75.00 | 5/6″ – 2.50″ | h8-h9-h10-h11 |
| Peeled and Polished Square Bars | 40.00 – 150.00 | 1.50″ – 6.00″ | h11, h11-DIN 1013 |
| Inconel Peeled and Square Bars | 20.00 – 50.00 | 3/4″ – 2.00″ | h9-h10-h11 |
| Size | Kgs / Foot | Kgs / Mtr | Size | Kgs / Foot | Kgs / Mtr | Size | Kgs / Foot | Kgs / Mtr |
|---|---|---|---|---|---|---|---|---|
| 3mm | 0.017 | 0.055 | 20mm | 0.753 | 2.470 | 3″ | 10.900 | 35.762 |
| 1/8″ | 0.019 | 0.062 | 22mm | 0.908 | 2.979 | 3-1/4″ | 12.800 | 41.996 |
| 5/32″ | 0.029 | 0.095 | 7/8″ | 0.926 | 3.038 | 3-1/2″ | 14.850 | 48.772 |
| 4mm | 0.030 | 0.098 | 24mm | 1.080 | 3.543 | 3-3/4″ | 17.001 | 55.780 |
| 3/16″ | 0.043 | 0.141 | 25mm | 1.180 | 3.871 | 4″ | 19.306 | 63.340 |
| 5mm | 0.047 | 0.154 | 1″ | 1.210 | 3.970 | 4-1/4″ | 21.908 | 72.249 |
| 7/32″ | 0.058 | 0.190 | 26mm | 1.271 | 4.170 | 4-1/2″ | 24.4487 | 80.340 |
| 6mm | 0.068 | 0.223 | 27mm | 1.368 | 4.490 | 4-3/4″ | 27.366 | 90.249 |
| 1/4″ | 0.076 | 0.249 | 1-1/8″ | 1.534 | 5.033 | 5″ | 30.461 | 99.940 |
| 7mm | 0.091 | 0.298 | 30mm | 1.691 | 5.548 | 5-1/2″ | 36.690 | 121.000 |
| 5/16″ | 0.118 | 0.387 | 1-1/4″ | 1.924 | 6.349 | 6″ | 43.860 | 143.900 |
| 8mm | 0.120 | 0.398 | 32mm | 1.894 | 6.314 | 6-1/2″ | 51.093 | 167.630 |
| 9mm | 0.152 | 0.498 | 1-3/8″ | 2.303 | 7.550 | 7″ | 59.432 | 196.000 |
| 3/8″ | 0.170 | 0.557 | 35mm | 2.390 | 7.553 | 7-1/2″ | 68.226 | 225.000 |
| 10mm | 0.189 | 0.620 | 36mm | 2.438 | 7.999 | 8″ | 77.586 | 254.55 |
| 11mm | 0.228 | 0.748 | 38mm | 2.792 | 8.903 | 10″ | 121.048 | 397.140 |
| 7/16″ | 0.232 | 0.761 | 1-1/2″ | 2.715 | 8.951 | |||
| 12mm | 0.271 | 0.889 | 40mm | 3.009 | 9.872 | |||
| 1/2″ | 0.303 | 0.994 | 1-5/8″ | 3.200 | 10.449 | |||
| 13mm | 0.318 | 1.043 | 1-3/4″ | 3.712 | 12.179 | |||
| 14mm | 0.368 | 1.207 | 45mm | 3.807 | 12.555 | |||
| 9/16″ | 0.383 | 1.256 | 1-7/8″ | 4.260 | 13.977 | |||
| 15mm | 0.424 | 1.391 | 48mm | 4.330 | 14.205 | |||
| 5/8″ | 0.473 | 1.551 | 50mm | 4.698 | 15.414 | |||
| 16mm | 0.481 | 1.578 | 2″ | 4.848 | 15.906 | |||
| 17mm | 0.543 | 1.791 | 2-1/8″ | 5.475 | 17.963 | |||
| 11/16″ | 0.573 | 1.880 | 2-1/4″ | 6.135 | 20.128 | |||
| 18mm | 0.610 | 2.001 | 60mm | 6.768 | 22.205 | |||
| 3/4″ | 0.682 | 2.237 | 2-3/8″ | 6.838 | 22.435 | |||
| 2-1/2″ | 7.576 | 24.856 | ||||||
| 2-5/8″ | 8.354 | 27.409 | ||||||
| 2-3/4″ | 9.169 | 30.083 |
| Ni | Cr | Fe | Mo | Nb+Ta | C | Mn | Si | Ph | S | Al | Ti | Co | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | Bal | 20 | – | 8 | 3.15 | – | – | – | – | – | – | – | – |
| Max | – | 23 | 5 | 10 | 4.15 | 0.10 | 0.50 | 0.50 | 0.015 | 0.015 | 0.40 | 0.40 | 1.0 |
| 0.2% Proof Stress | Tensile Strength | Elongation | Reduction of area | Hardness |
|---|---|---|---|---|
| MPA | MPA | % | % | HRB |
| Min | Min | Min | Min | Min |
| 414 | 827 | 30 | 40 | 145 |
Inconel Square Bar is widely used in industries such as aerospace, chemical processing, power generation, and marine. It is ideal for components exposed to high temperatures and corrosive environments, including turbines, heat exchangers, and exhaust systems.
Yes, we provide bars and rods in standard and customized dimensions and polishes to meet your specific project requirements. For more details mail us on sales@phehlukwayometal.co.za
Inconel Square Bar is known for its excellent resistance to oxidation and high-temperature strength. It has high tensile strength, excellent creep resistance, and is composed mainly of nickel (72%), chromium (14-17%), and other elements, making it suitable for demanding industrial applications.
Stainless Steel 347 Hollow Bar is commonly utilized in applications that demand high-temperature strength and corrosion resistance. It’s especially well-suited for settings that experience repeated heating and cooling cycles. Industries that frequently use this material include aerospace, chemical processing, food processing, petroleum refining, and power generation. It’s often found in components like heat exchangers, pressure vessels, boiler tubes, exhaust manifolds, and furnace parts. The hollow design of the bar allows for a lighter weight without sacrificing strength, making it perfect for structural and mechanical applications where efficiency and reliability are essential. Its durability ensures a long service life, making it a smart choice for various demanding applications.






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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