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.
How does Stainless Steel 347/347H differ from other stainless steel grades?
Stainless Steel 347/347H stands out among other stainless steel grades due to its unique composition and enhanced properties. The main difference lies in its higher content of niobium and tantalum, which contribute to its exceptional resistance to intergranular corrosion. That makes Stainless Steel 347/347H highly suitable for applications involving elevated temperatures, such as in the petrochemical, aerospace, and power generation industries. Additionally, its niobium and tantalum content improves its stability against sensitization during welding processes, thereby preventing the formation of harmful chromium carbide precipitates.
Table Of Content
What are the common applications of Stainless Steel 347/347H bars, rods, and wires in various industries?
Stainless Steel 347 bars find extensive usage across various industries due to their exceptional properties and versatility. One common application is in the petrochemical industry, where these bars are widely employed in constructing refinery equipment, such as pressure vessels, heat exchangers, and piping systems. The aerospace industry also utilizes Stainless Steel 347 bars for manufacturing aircraft components, including exhaust systems, engine parts, and high-temperature fasteners, owing to their excellent resistance to oxidation and high-temperature environments.
Stainless Steel 347H rods find wide-ranging applications across diverse industries due to their exceptional properties and reliability. One common field of application is the oil and gas industry, where these rods are extensively used to construct oil rigs, offshore platforms, and pipelines. The chemical processing industry also relies on Stainless Steel 347H rods to manufacture reactors, heat exchangers, and storage tanks, which offer excellent resistance to corrosive chemicals and high-temperature environments.
Stainless Steel, 347 and 347H wires offer various applications across various industries, owing to their exceptional properties and versatility. In the automotive industry, these wires find application in exhaust systems, wire harnesses, and fuel injection systems due to their excellent corrosion resistance and high-temperature strength. The aerospace sector also utilizes Stainless Steel 347 and 347H wires for aircraft wiring, connectors, and components that require resistance to extreme temperatures and harsh environments.
SS Bar Wire Standard | ASTM A276 / A479, ASME SA276 / A479 ASTM A580 ASME SA580 / ASTM A313 ASME SA313, AMS 5514 |
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 Wire Length | Cut Lengths: 0.125" to 72" No Limit on Spooled Lengths |
SS Wires Diameter | 0.0004" to 0.040" 10 microns to 1.0 mm Other Sizes on Request |
Wire Condition | M, Y, 1/2Hard |
SS Angle bar size | 3mm*20mm*20mm~12mm*100mm*100mm |
SS Rectangular Bars Section | 3.0 to 12.0mm thickness |
ASTM A276 Type Hollow Bar | 32mm OD x 16mm ID to 250mm OD x 200mm ID) |
SS Threaded Bar Billet Size | 1/2 to 495mm Diameter |
Stainless Steel Rectangular Size | 33 x 30mm to 295 x 1066mm |
SS Hex 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 |
ASTM A276 SS Type Hollow Bar Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
T-Bar Surface | Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline |
Tempers | Tempers range from dead soft annealed to ultra spring temper |
Rolled Stainless Steel Flat Bars Condition | Hardened & tempered, annealed |
ASTM A276 Type 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. |
Wire available in form of | Flat, Coil, mesh, Knitted wire mesh, spring, stranded and twisted |
STANDARD | WERKSTOFF NR. | UNS | JIS | GOST | EN |
SS 347 | 1.4550 | S34700 | SUS 347 | 08Ch18N12B | X6CrNiNb18-10 |
SS 347H | 1.4961 | S34709 | SUS 347H | - | X6CrNiNb18-12 |
Grade | C | Mn | Si | P | S | Cr | Cb | Ni | Fe |
SS 347 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 - 20.00 | 10xC – 1.10 | 9.00 - 13.00 | 62.74 min |
SS 347H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 - 19.00 | 8xC – 1.10 | 9.0 -13.0 | 63.72 min |
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 | 35 % |
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