Starc Metals stands out as a top-notch manufacturer and supplier of Stainless Steel 347H Hex Bars, proudly based in Canberra, Australia. Known for our commitment to precision, quality, and reliability, we provide high-performance stainless steel products that not only meet international standards but also cater to our clients’ specific needs. Our Stainless Steel 347H Hex Bars are particularly prized for their outstanding corrosion resistance, impressive high-temperature strength, and durability in tough environments. Thanks to our cutting-edge manufacturing technology and rigorous quality control, Starc Metals supports various industries, including aerospace, chemical processing, petrochemical, and power generation, delivering robust and long-lasting solutions that ensure efficiency, safety, and top-notch performance in critical industrial applications.
These Stainless Steel 347H Hex Bars are made up of 17–19% chromium, 9–13% nickel, and 0.5–0.75% niobium/tantalum, with a carefully controlled carbon content of 0.04–0.10% to boost high-temperature strength. This austenitic stainless steel is known for its excellent resistance to intergranular corrosion and oxidation, even at elevated temperatures. In terms of mechanical properties, they boast a tensile strength ranging from 515–750 MPa, a yield strength of about 205–450 MPa, and a density of 8 g/cm³. Additionally, these hex bars offer remarkable toughness, ductility, and weldability, making them perfect for high-temperature and demanding industrial applications that require long-term reliability.
Dimensions : ASTM, ASME
Standard : ASTM / ASME SA A276, A479, ASTM A493
Length : Random, Fix & Cut Length
Size : 20MM to 150MM
| Element | C | Cr | Mn | Ni | P | S | Si |
| SS 347h | 0.08 max. | 17.0 – 19.0 | 2.00 max. | 9.0-13.0 | 0.045 max. | 0.03 max. | 0.75 max |
| Element | Density | Melting Range,℃ | Tensile Strength | Yield Strength | Elongation | Hardness (Brinell) |
| SS 347h | 7.96 | 1450 ℃ | 515 | 205 | 40 | 201 |
| HEXAGONS | ||
|---|---|---|
| Size(mm) | WT PER FEET IN KGS | WT PER MTR IN KGS |
| 16 | 0.55 | 1.79 |
| 18 | 0.69 | 2.27 |
| 20 | 0.85 | 2.80 |
| 22 | 1.03 | 3.39 |
| 25 | 1.33 | 4.38 |
| 28 | 1.67 | 5.49 |
| 30 | 1.92 | 6.30 |
| 32 | 2.19 | 7.17 |
| 36 | 2.77 | 9.07 |
| 38 | 3.08 | 10.11 |
| 40 | 3.41 | 11.20 |
| 45 | 4.32 | 14.18 |
| 50 | 5.34 | 17.50 |
| 56 | – | – |
| 60 | – | – |
| 65 | – | – |
| 70 | – | – |
| 75 | – | – |
| 80 | – | – |
| 90 | – | – |
| 100 | – | – |
SS 347H stainless steel contains high carbon content (0.04–0.10%), along with chromium (17–19%) and nickel (9–12%), which enhance its resistance to high temperatures and intergranular corrosion. Its stabilizing addition of tantalum or niobium prevents carbide precipitation, making it ideal for high-stress applications like hexagonal bars.
The high carbon content in SS 347H enhances its high-temperature strength and resistance to creep, making it suitable for extreme heat environments. Unlike lower-carbon steels, it stabilizes its microstructure, preventing carbide precipitation and improving oxidation resistance, which is crucial for high-temperature applications compared to other stainless steels like 304 or 316.
SS 347H Hex Bar is commonly used in the aerospace, chemical processing, and power generation industries. It is preferred for its excellent high-temperature resistance, resistance to intergranular corrosion, and stability in harsh environments. Its ability to withstand extreme temperatures and prevent carbide precipitation makes it ideal for critical applications.
Stainless Steel 347H Hex Bars find their place in various applications that demand high-temperature strength and corrosion resistance. In the chemical and petrochemical sectors, they are ideal for heat exchangers, furnace components, and reactor vessels that come into contact with aggressive media. The aerospace and power generation industries utilize them in turbine parts, exhaust components, and high-temperature machinery. They are also essential in marine applications, where equipment is exposed to seawater and offshore structures. Furthermore, Stainless Steel 347H Hex Bars are commonly used in boilers, superheaters, and industrial machinery, where durability is key.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Starc Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Canberra, Australia
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