Semih Metals, Istanbul, Turkey, is a reliable manufacturer and exporter of Stainless Steel 446 hex bars, supplying quality ferritic stainless steel products renowned for high-temperature strengths and corrosion resistance. Semih Metals applies careful manufacturing processes and quality checks to ensure its 446 hex bars adhere to global standards and customer specifications. Supplying industries like power generation, chemical processing, and automotive, the company provides long-life materials suitable for use in applications requiring resistance to scaling, corrosion, and oxidation at high temperatures.
Stainless Steel 446 is a ferritic stainless steel alloy with around 23% chromium and low carbon content, which offers high resistance to oxidation and scaling at elevated temperatures, commonly up to 1100°C (2012°F). It provides good tensile strength between 400 to 600 MPa and better corrosion resistance in acidic and chloride environments than the other ferritic steels. Stainless Steel 446 also has good heat conductivity and is non-magnetic, thus being ideal for several high-temperature applications.
Dimensions : ASTM, ASME
Standard : ASTM / ASME SA A276, A479, ASTM A493
Specifications
Length : Random, Fix & Cut Length
Size : 20MM to 150MM
| Element | C | Cr | Mn | Ni | P | S | Si |
| SS 446 | 0.2 | 23.00 | 1.5 | 0.50 | 0.040 | 0.030 | 0.75 |
| Element | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness (Brinell (HB) max) |
| SS 446 | Psi – 75,000 , MPa – 485 | Psi – 40,000 , MPa – 275 | 20 % | – |
| 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 446 Hex Bars offer excellent corrosion resistance, high strength, and durability, making them ideal for harsh industrial environments. Their resistance to oxidation and high-temperature stability ensure reliability in applications like heat exchangers, chemical processing, and petrochemical industries.
SS 446 Hex Bar has superior high-temperature strength and excellent resistance to oxidation compared to other stainless steel alloys like SS 304 or SS 316. Its enhanced durability and corrosion resistance make it ideal for high-stress environments, such as heat exchangers, where other alloys may degrade or weaken over time.
Common machining techniques for SS 446 Hex Bars include turning, milling, drilling, and grinding. Challenges include its high hardness and tendency to work-harden, which can lead to tool wear. Proper lubrication and slower cutting speeds are necessary to maintain tool life and achieve smooth, accurate finishes.
Stainless Steel 446 hex bars find usage in applications that demand robust heat and corrosion resistance. They find their best application in furnace components, heat exchangers, gas turbines, and boiler parts that face high temperatures. They are also applied in chemical processing equipment, vehicle exhaust systems, and architectural uses where oxidation resistance in the long term is essential. Being resistant to thermal cycling as well as corrosive environments makes Stainless Steel 446 hex bars a trustful option for tough industrial applications.






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