At Mitchell Stainless in Hamilton, New Zealand, we provide stainless steel bars engineered for extreme high-temperature and demanding industrial applications. Our Stainless Steel 314 Bars are designed to retain strength, resist oxidation, and deliver reliable long-term performance in elevated heat environments. Ideal for furnaces, kilns, and thermal processing systems, these bars are used where durability and mechanical stability are critical. Backed by Mitchell Stainless’ commitment to quality and local expertise, 314 bars offer customers a dependable solution for industrial projects requiring superior heat resistance and structural integrity.
Stainless Steel 314 Bars are manufactured from a high-chromium and high-nickel austenitic stainless steel alloy. This composition provides excellent resistance to oxidation, scaling, and corrosion at extremely elevated temperatures. The bars maintain good tensile strength, toughness, and structural stability under prolonged heat exposure. Stainless Steel 314 retains its mechanical properties effectively in continuous high-temperature service, making it suitable for industrial applications that require long-term durability and reliable performance in severe thermal conditions.
Specification : ASTM A276, A479 / ASME SA276, SA479
Standard : EN, DIN, JIS, ASTM, BS, ASME, AISI
Round Bars : Outside Diameter in the range of 4mm to 500mm
Bright Bars : Outside Diameter in the range of 4mm to 100mm
Hex Bars : 18mm – 57mm (11/16″ to 2-3/4″)
Square Bars : 18mm – 47mm (11/16″ to 1-3/4″)
Finish : Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
Length : 1 to 6 Meters, Custom Cut Lengths
Form : Round, Square, Hex (A/F), Rectangle Etc.
| Element | Content (%) |
|---|---|
| Iron, fe | Balance |
| Chromium, Cr | 19-26 |
| Nickel, Ni | 19-22 |
| Manganese, Mn | 2 |
| Silicon, Si | 1.5-3 |
| Carbon, C | 0.25 |
| Sulfur, S | 0.03 |
| Phosphorous, P | 0.045 |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 689 MPa | 99900 psi |
| Yield strength | 345 MPa | 50000 psi |
| Modulus of elasticity | 200 GPa | 29000 ksi |
| Elongation at break (in 50 mm) | 40% | 40% |
| Hardness, Rockwell B | 85 | 85 |
Contact us to get a quick quote for your requirement.
We ensures that it provides the most excellent quality on Stainless Steel 314 Bars in terms of being tested and certification. Each and every bar passed through the high-quality mechanical, chemical analysis; tensile strength, hardness strength, corrosion testing, and with reports like a Mill Test Certificate, which verifies the industry specification and customer satisfaction.
Corrosion-resistant and designed for high-temperature applications, Stainless Steel 314 Round Bars are available in diameters from 0.5″ to 12″. Ideal for use in industrial equipment and heat exchangers.
Stainless Steel 314 Flat Bars offer excellent resistance to high temperatures, available in thicknesses from 0.25″ to 6″ and widths up to 12″. Perfect for structural components and industrial uses.
Featuring superior heat resistance, Stainless Steel 314 Square Bars come in sizes from 0.5″ to 6″ on each side. They are suitable for applications requiring high strength and thermal stability.
Stainless Steel 314 Rectangular Bars provide excellent high-temperature resistance, available in sizes from 0.5″ x 1″ to 6″ x 12″. Ideal for heavy-duty applications and components exposed to extreme conditions.
Offering exceptional heat resistance, Stainless Steel 314 Hexagonal Bars are available in sizes from 0.5″ to 4″ across flats. Suitable for aerospace and chemical processing applications requiring durable performance.
Corrosion-resistant Stainless Steel 314 T-Bars come in dimensions from 0.5″ x 0.5″ to 6″ x 6″. They are ideal for structural applications and machinery needing high-temperature strength and durability.
Stainless Steel 314 Bars are widely used in high-temperature and heavy industrial applications. Typical uses include furnace and kiln components, radiant tubes, heat treatment equipment, thermal processing systems, and petrochemical plant structures. They are also suitable for power generation, industrial burners, and other equipment exposed to sustained extreme heat. At Mitchell Stainless, we supply 314 bars for projects demanding exceptional heat resistance and mechanical stability. Their ability to perform reliably under high temperatures makes them a trusted choice for industries where durability and structural integrity are essential.







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