Louis Metals supplies high-quality Stainless Steel 446 Round Bars and Rods from Houston, USA. These are designed for extreme heat and oxidizing environments. Stainless Steel 446 (UNS S44600) is a ferritic alloy rich in chromium. It offers great resistance to scaling, thermal fatigue, and sulfidation at high temperatures. Ideal for heat treatment equipment, furnace fixtures, and incinerators, our 446 round bars meet ASTM A276 specifications. Louis Metals offers a variety of diameters and custom lengths to fit the needs of industries working in intense heat and corrosive gas conditions.
446 stainless steel contains 23–27% chromium with less than 0.20% carbon, and small amounts of silicon, manganese, and molybdenum. It provides tensile strength between 415–585 MPa and strong oxidation resistance up to 1100°C. The alloy holds its structural integrity in high-temperature settings and resists sulfidation and thermal cycling. While it is ferritic and magnetic, it has moderate ductility and cannot be hardened by heat treatment. Louis Metals ensures dimensional accuracy and a high surface finish on 446 round bars designed for thermal and chemical resistance applications.
Stainless Steel Round Bar Specification : ASTM A276 / A479, ASME SA276 / A479
Dimension Standard : EN, DIN, JIS, ASTM, BS, ASME, AISI
Size : 14mm-300mm
Thickness : 50 mm to 6000 mm Long
Length : 1 To 6 Meters, Custom Cut Length
Form : Round, Square, Hex(A/F), Rectangle, Billet, Ingot, Forging Etc.
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Fe |
|---|---|---|---|---|---|---|---|---|---|
| SS 446 | 0.2 max | 1.5 max | 0.75 max | 0.040 max | 0.03 max | 23 – 30 | 0.10 – 0.25 | 0.50 max | Balance |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
|---|---|---|---|---|
| 7.5 g/cm3 | 1510 °C (2750 °F) | Psi – 75,000 , MPa – 485 | Psi – 40,000 , MPa – 275 | 20 % |
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
|---|---|---|---|---|---|---|---|
| SS 446 | 1.4762 | S44600 | – | – | – | – | – |
|
Type |
SIZES (mm) |
SIZES (Inches) |
ISO Tolerance |
|---|---|---|---|
|
Cold Drawn and Polish |
3.00 – 75.00 |
1/8″ – 3.00″ |
h8-h9-h10-h11 |
|
Cold Drawn and Ground |
10.00 – 75.00 |
5/6″ – 2.50″ |
h8-h9-h10-h11 |
|
Peeled and Polished |
40.00 – 150.00 |
1.50″ – 6.00″ |
h11, h11-DIN 1013 |
|
Peeled and Ground |
20.00 – 50.00 |
3/4″ – 2.00″ |
h9-h10-h11 |
Stainless Steel 446 Round Bars/Rod are not typically recommended for cryogenic applications, as their ferritic structure may become brittle at extremely low temperatures, compromising their performance and toughness.
To choose the right Stainless Steel 446 Round Bars/Rod, consider factors like the operating temperature, corrosion resistance requirements, and specific environmental conditions, ensuring compatibility with your application’s demands.
Yes, Stainless Steel 446 Round Bars/Rod should undergo regular inspection to ensure they maintain their integrity, especially in high-temperature or corrosive environments, to detect any potential wear or damage.
Stainless Steel 446 Round Bars and Rods are commonly used in heat exchangers, burners, radiant tubes, exhaust systems, and other high-temperature industrial components. Their strong resistance to oxidation and sulfidation makes them suitable for kilns, incinerators, and furnace linings. These bars are also used in flue gas scrubbers, reformer tubes, and petrochemical equipment exposed to corrosive gases. The alloy’s strength at elevated temperatures helps maintain its mechanical stability in thermal cycling. Louis Metals supplies 446 bars cut to custom lengths and tolerances for the strict requirements of thermal processing and power generation industries.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Louis Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Houston, USA
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