Weston Stainless, located in Midland, UK, is a renowned distributor of high-quality stainless steel products, providing corrosion–resistant and high–grade solutions for numerous industrial processes. Their Stainless Steel 347 Bars are produced using columbium-stabilized austenitic stainless steel, guaranteeing superior intergranular corrosion resistance and high-temperature performance. These bars come in various shapes and forms including round, square, hex, and flat bars and offer superior mechanical strength, durability, and weldability. With better oxidation resistance and stability in harsh conditions, SS 347 bars are perfect for industries that need dependable and long-lasting stainless steel parts for structural and machining purposes.
Stainless Steel 347 Bars have 17-19% chromium, 9-13% nickel, and columbium (niobium), which enhances their carbide precipitation and high-temperature oxidation resistance. The tensile strength of these bars is 515 MPa, yield strength is 205 MPa, and elongation is 40%. Their hardness is around 95 HRB. Physical properties are 7.9 g/cm³ density, a melting point of 1400°C, and a thermal conductivity of 16.3 W/m-K. All these properties make SS 347 bars most suitable for high-temperature and high-stress conditions where they need to be strong and durable.
| Specifications | ASTM A276 / ASME SA276 |
| Dimensions | ASTM, ASME |
| Range | 3.17 MM TO 350 MM DIA |
| Diameter | 25mm to 152mm |
| Length | 1 to 6 Meters, Custom Cut Length |
| Finish | Bright, Polish & Black |
| Form | Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wiremesh, Billet, Ingot, Forging |
| Condition | Cold Drawn & Polished Cold Drawn, Centreless Ground & Polished |
|
Grade |
Mn |
N |
P |
C |
S |
Cr |
Mo |
Si |
Ni |
Other |
|
|
347 |
min. max |
2.00 |
– |
0.045 |
– 0.08 |
0.030 |
17.0 19.0 |
– |
0.75 |
9.0 13.0 |
Nb=10(C+N) 1.0 |
Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
Rockwell B (HR B) max | Brinell (HB) max | ||||
347 | 515 | 205 | 40 | 92 | 201 |
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Stainless Steel 347 Bars find extensive use in petrochemical, power generation, aerospace, and marine applications based on their good resistance to corrosion and oxidation. They are generally used in heat exchangers, boiler tubes, furnace parts, pressure vessels, and exhaust systems, where stability at very high temperatures is a necessity. They also find applications in chemical processing plants, food processing units, and refinery piping systems. Their better mechanical properties, stress corrosion cracking resistance, and superior formability in hot rolling make them a choice for harsh industrial applications.
Corrosion-resistant product with high-temperature stability, available in diameters ranging from 0.5″ to 12″. Ideal for use in aerospace, chemical processing, and power generation industries where durability is essential.
This product features exceptional resistance to oxidation, available in thicknesses from 0.25″ to 6″ and widths up to 12″. Perfect for structural components and industrial applications.
Corrosion-resistant product designed for durability, offered in sizes from 0.5″ to 6″ on each side. Suitable for use in high-temperature environments and demanding industrial applications.
This Corrosion-resistant product with dimensions ranging from 0.5″ x 1″ to 6″ x 12″. Ideal for heavy-duty applications where strength and resistance to harsh conditions are required.
Corrosion-resistant product with sizes from 0.5″ to 4″ across flats. Used in aerospace and chemical industries, offering high performance in extreme environments.
Dimensions from 0.5″ x 0.5″ to 6″ x 6″. Suitable for structural support and applications requiring high-temperature resistance and reliability.
Weston Stainless offers test certificates, such as Mill Test Certificates (MTC) in accordance with EN 10204 3.1, which meet international standards of quality. The bars are safely packed into wooden crates, bubble wrap, or carton boxes to protect them from transportation damage. Having a well-developed logistics system, Weston Stainless ensures timely and safe global shipping, fulfilling industrial needs effectively and accurately.
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