Stainless Steel 347/347H bars are high-strength, corrosion-resistant bars primarily composed of chromium and nickel, with added niobium for enhanced stability against intergranular corrosion. They offer excellent resistance to oxidation and high temperatures, making them suitable for applications in industries such as chemical processing, aerospace, and petroleum refining.
Stainless Steel 347/347H bars are highly versatile and widely used in various industrial applications due to their unique combination of properties. These bars are primarily composed of chromium and nickel, with additional elements such as niobium and manganese, which enhance their strength, corrosion resistance, and high-temperature performance.
One of the key features of Stainless Steel 347/347H bars is their exceptional corrosion resistance. They exhibit excellent resistance to oxidation, as well as to corrosion from acids, alkalis, and various chemical environments, making them suitable for use in aggressive industrial settings, including chemical processing, petroleum refining, and pharmaceutical production.
Moreover, these bars offer superior strength and toughness, even at elevated temperatures. The addition of niobium helps to stabilize the material against sensitization during welding, preventing the formation of chromium carbide precipitation along the grain boundaries, which can compromise corrosion resistance. This makes Stainless Steel 347/347H bars particularly well-suited for applications in high-temperature environments, such as in heat exchangers, furnace components, and aerospace components.
Another notable feature of these bars is their ease of fabrication and machining. They can be readily formed, welded, and machined using standard techniques, allowing for the production of complex components and structures with precise specifications. This versatility makes Stainless Steel 347/347H bars highly desirable in industries requiring intricate fabrication processes, such as automotive manufacturing, construction, and architectural design.
In addition to their mechanical and corrosion-resistant properties, Stainless Steel 347/347H bars offer excellent stability and durability over a wide range of operating conditions. They exhibit minimal thermal expansion and contraction, ensuring dimensional stability and integrity under fluctuating temperatures. This characteristic makes them ideal for use in applications subject to thermal cycling and mechanical stress, such as in power generation plants, chemical reactors, and offshore oil platforms.
Furthermore, Stainless Steel 347/347H bars are known for their hygienic properties, making them suitable for use in food processing, pharmaceutical, and medical applications. They are non-reactive and easy to clean, ensuring the integrity and purity of processed materials and medical devices.
Apple Steels is a leading manufacturer and supplier of top-quality Stainless Steel 347/347H bars in Mumbai, India. We pride ourselves on delivering top-quality products with exceptional durability and reliability, meeting the stringent standards of various industries worldwide. With us, expect excellence in every bar.
Melting and Casting
Steel and alloying metals are loaded into an electric arc furnace. Once in the furnace, the metal is heated to a specific temperature above its melting point, usually in excess of 2800°F.
Forming
Most cast steel is formed by hot rolling—the slab, bloom, or billet is heated and passed through large rollers, stretching out the steel into a longer, thinner form.
Heat treatment
Heat treatment strengthens rolled stainless steel by recrystallizing the deformed microstructure. Most stainless steel is heat treated by annealing.
Descaling
A rolled piece of stainless steel acquires a layer of oxidized “mill scale,” which needs to be washed away to restore a shiny surface finish.
Cutting or Machining
Stainless steel is cut to a specified shape and size. The stainless steel can be sheared with circular knives, sawed with high-speed blades, or blanked with punches.
| SS Bar Wire Standard | ASTM A276 / A479, ASME SA276 / SA479 |
| Stainless Steel Bar Dimensions | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Stainless Steel Round bar size | Diameter: 3-~800mm |
| Stainless Steel Hex Bar size | 2-100mm A/F |
| SS Flat bar size | Thickness: 2 -100mm |
| Width: 10 to 500mm | |
| Stainless Steel Square bar size | 4 to 100mm |
| SS Angle bar size | 3mm*20mm*20mm~12mm*100mm*100mm |
| Hollow Bar | 32mm OD x 16mm ID to 250mm OD x 200mm ID) |
| Stainless Steel Rectangular Size | 33 x 30mm to 295 x 1066mm |
| SS Bars Finish | Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black |
| SS Bar Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| Tempers | Tempers range from dead soft annealed to ultra spring temper |
| Rolled Stainless Steel Flat Bars Condition | Hardened & tempered, annealed |
| Cold Rolled Bar Technique | Stainless Steel Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
| Stainless Steel Rounds Bar Form | Round, Rod, T-Bar, Channel Bar, Precision Ground Bar, Flat Bar, Square, Blocks, Round Rod, Rings, Hollow, Triangle, Rectangle, Hex (A/F), Threaded, Half Round Bar, Profiles, Billet, Ingot, I/H Bar, Forging etc. |
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 347 | 1.4550 | S34700 | SUS 347 | - | 08Ch18N12B | - | X6CrNiNb18-10 |
| SS 347H | 1.4961 | S34709 | SUS 347H | - | - | - | X7CrNiNb18-10 |
| Grade | C | Mn | Si | P | S | Cr | Co + Ta | Ni | Fe |
| SS 347 | 0.08 max | 2 max | 0.75 max | 0.045 max | 0.03 max | 17 - 20 | 10xC min 1.00 max |
9 - 13 | 62.74 |
| SS 347H | 0.04 – 0.10 | 2 max | 0.75 max | 0.045 max | 0.03 max | 17 - 20 | 8xC min 1.00 max |
9 - 13 | 62.74 |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1454 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 40 % |
Electrical Industry
Automotive Industry
Construction Industry
Defence Industry
Pharmaceutical Industry
Petroleum Industry
Petrochemical Industry
Milk & Dairy Industry
Austria, Azerbaijan, Belarus, Belgium, Bulgaria, Croatia, Cyprus, Czechia/Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Moldova, Monaco, Netherlands, Norway, Poland, Portugal, Romania, Russia, Serbia, Slovakia, Spain, Sweden, Switzerland, Turkey, Ukraine, United Kingdom.
Afghanistan, Armenia, Azerbaijan, Bahrain, Bangladesh, Bhutan, British, China, Egypt, Hong Kong, India, Indonesia, Iran, Iraq, Israel, Japan, Jordan, Kuwait, Kyrgyzstan, Lebanon, Macau, Malaysia, Maldives, Mongolia, Myanmar, Nepal, North Korea, Oman, Philippines, Qatar, Russia, Saudi Arabia, Singapore, South Korea, Sri Lanka, Taiwan, Thailand, Turkey, United Arab Emirates, Vietnam.
Algeria, Angola, Botswana, Burkina Faso, Burundi, Cameroon, Central African Republic, Egypt, Eswatini, Ethiopia, Gambia, Kenya, Liberia, Libya, Madagascar, Mauritania, Mauritius, Morocco, Mozambique, Namibia, Niger, Nigeria, Rwanda, Senegal, Seychelles, South Africa, Tanzania, Tunisia, Uganda, Zambia, Zimbabwe.
Antigua and Barbuda, Bahamas, Barbados, Belize, Canada, Costa Rica, Cuba, Dominica, Dominican Republic, El Salvador, Grenada, Guatemala, Haiti, Honduras, Jamaica, Mexico, Nicaragua, Panama, Saint Lucia, Saint Vincent and the Grenadines, Trinidad and Tobago, United States of America, Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname, Uruguay, Venezuela.
