347 achieves the same stabilisation as 321 using niobium, which does not oxidise across the arc the way titanium does. That makes it the stabilised grade of choice where the weld itself must be stabilised rather than just the parent metal, and it carries somewhat higher elevated-temperature strength than 321.
Pitting resistance equivalent. Higher resists chlorides better.
Indexed to 304. Indicative, for specification triage.
Rajgranth Metal & Alloys manufactures, stocks, supplies and exports Stainless Steel 347 and 347H round Bars (UNS S34700 / S34709) from Mumbai. Stabilised with niobium rather than titanium. Preferred where weld filler purity matters. Rajgranth Metal & Alloys has been trading since 1980, is self-funded and debt-free, and despatches most orders from its Mumbai stockyard within two days.
347 achieves the same stabilisation as 321 using niobium, which does not oxidise across the arc the way titanium does. That makes it the stabilised grade of choice where the weld itself must be stabilised rather than just the parent metal, and it carries somewhat higher elevated-temperature strength than 321.
Stainless Steel 347 and 347H is also designated UNS S34700 / S34709, EN 1.4550 / 1.4912, AISI 347 / 347H, JIS SUS347 / SUS347H, GB S34778 and Werkstoff X6CrNiNb18-10 / X7CrNiNb18-10. Quote the designation your specification uses and we will supply to it.
Stabilisation survives the welding arc, unlike titanium, Higher creep strength than 321 at equivalent temperature and Well established in ASME pressure vessel service. It is non-magnetic, with excellent weldability and fair machinability, and is used in continuous service in air up to about 900 °C.
More expensive than 321 for equivalent performance in most duties and No improvement over 304 in chloride environments. We state these plainly so the grade is chosen for the right service.
Our published range covers diameter 10 mm, 300 mm, shape Round, Square, Hexagonal, Threaded, tolerance H7, H8, H9, H10, length 5 m, 6.5 m (Customised length per requirement) and bar ends Plain, Bevelled. Standards include ASTM A276, ASTM A479 / ASME SA-479, ASTM A484, ASTM A582, ASTM A564, EN 10088-3 and ISO 15510:2010. Finishes and conditions include Export Bright, Peeled / Turned Bar, Cold Drawn Bar, Centreless Ground & Polished Bar, Black Bar and Forged Bar.
welded high-temperature pressure vessels, refinery and petrochemical piping, steam and power plant components and aircraft exhaust and collector rings. Typical industries: refinery, power & energy, aerospace, petrochemical and nuclear. We supply across India and export to markets in the Middle East, Africa, Europe, Asia, North America and South America.
Material is supplied with documentation, tested in house across 18 listed testing facilities, and covered by our ISO 9001:2015 quality management system. Rajgranth Metal & Alloys has been trading since 1980, is self-funded and debt-free, and despatches most orders from its Mumbai stockyard within two days.
Customised length per requirement
The full detail for this product as supplied from our Mumbai stockyard: sizes, grades, standards, tolerances, tests and applications.
Rajgranth Metals & Alloys specializes in dealing with the best quality of Stainless Steel 347 (SS 347) Round Bars that meet the performance criterion of the applications it is put into. SS 347 is an austenitic chromium nickel stainless steel in which the damage caused by the formation of chromium carbide is controlled by the addition of columbium and tantalum thus providing it with excellent resistance to intergranular corrosion. Such stabilization helps to avoid carbide precipitation at grain boundaries during welding and at high temperatures, so SS 347 Round Bars are suitable for the chemical and petrochemical industries, high-temperature industrial boilers and heat exchangers.
Typically, our chromium-molybdenum grade and carbon steel SS 347 Round Bars have high tensile strength and demonstrate good creep and stress rupture characteristics at raised temperatures. This grade also provides unmatched antioxidants and scaling characteristics, which means the grade can withstand high temperature applications up to 1500F (816C). The specific chemical makeup has a right proportion of chromium, nickle and columbium/tantalum for flexibility, thereby properly suitable for weld ability and form ability applications.
At Rajgranth Metals & Alloys, the selection of material and the manufacturing process of SS 347 Round Bar are carefully carried with precision to deliver every product in the market. In environments that are high in corrosive qualities our SS 347 Round Bars provide the highest durability and if the application is in high heat, the SS 347 Round Bars meet those needs as well.
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| Stainless Steel (SS) 347 Round Bars Specification | 2 | 1 |
|---|---|---|
| Product | Stainless Steel (SS) 347 Round Bars | |
| Diameter | 03 mm to 350 mm | |
| SS Grade | 201, 202, J3, 303, 304, 304L, 304LN, 304H, 309, 310, 316, 316L, 316LN, 316H, 316TI, 317, 317L, 317LN, 321, 321H, 347, 347H, 904, 904L, duplex & super duplex SA240 UNS NO. S31803 , S32205 , S32550 , S32750 , S32760, SMO 254, 17-4PH, Alloy 20, and more grade as per requirment. | |
| Specification of SS 347 Round Bar | ASTM A276 / A479, ASME SA276 / A479 | |
| Thickness | 40 mm to 6000 mm Long | |
| Shape | Round Bar , Squre Bar , Hexagonal Bar , Threaded Bar | |
| Tolorance | H7, H8, H9, H10 | |
| Length | 3 mtr and (Depending Upon Size) | |
| Surface Finish | Cold Drawn Bar, Centreless Ground Bar , Polished Bar , Black Bar , Threaded Bar , HEX Bar , Square Bar , Forged Bar | |
| Application | Machined Components, Pump Shafts, Valves, Fasteners, Machine Tools, Dairy Equipments, Surgical & Medical Parts, Threaded Bars, Studs, Bolts, Pins, Hinges and Handles. |
SS 347 Round Bars Size x Thickness x Standard x Specification x Grade
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