This unique composition bestows on the fasteners better resistance to intergranular corrosion—a very vital property for its integrity in high-temperature environments. The high content of chrome in this alloy provides it, together with niobium and tantalum, with a very good resistance to oxidation, allowing long service even under very aggressive conditions. Our Stainless Steel 347H Fasteners do have high mechanical strength, with good tensile and yield strengths, in addition to excellent weldability. With these features, they turn out to be suitable for various principal applications spread across different industries.
Stainless Steel 347H Fasteners find broad usage in the petrochemical industry for equipment and components running with corrosive chemicals and high-temperature gases, particularly as noticed in pipelines, valves, and fittings. Their heat resistance or resistance makes them quite serviceable in chemical treatment plants by handling corrosive acids, akalis, and numerous other caustic substances. In the production of energy, specifically from atomic and thermal fossil fuel power plants, the output is also used for Stainless Steel 347H Fasteners subjected to such very high temperatures and aggressive conditions. These fasteners are also of extreme importance in aerospace applications because of the need for high strength and resistance to thermal stress to ensure the reliability and safety of aerospace components.
Sankalp Alloys Overseas offers a comprehensive and diversified range of stainless steel 347H fasteners that includes Stainless Steel 347H Bolts, Nuts, and Screws, available in different sizes and specifications to meet various requirements of clients. With state-of-the-art technology and rigorous quality control processes at all stages of production, every product made is to the best standards of performance and reliability. Be it Stainless Steel 347H Fasteners, as one of the well-known manufacturers, suppliers, stockists, and exporters, ensure that every product supplied by us is of supreme quality and premium value.
Standards : DIN, ASTM, BS and all International Standards
Specifications : ASTM A193 B8, B8M, B6, B8T, B8C, A194 G8, 8M, 8C, 8T
Length : 3 mm to 200 mm
Bolt / Screw Size : M3 - M56 | 3/6" to 2" | Custom Sizes
Nuts Size : M3 - M56 | 3/6" to 2" | Custom Sizes
Washers Size : M3 - M56 | 3/6" to 2" | Custom Sizes
Machine Screws Size : M1.6 - M12
Self Tapping Screw Size : No.2 - No. 14
Types : Bolts, Nuts, Screws, Sockets, Studs, Screw, Hex Set Screw, Socket Screw, Cap Screw, Pan Head Screw, Machine Screw, Socket Head Cap Screw, Allen Cap screw, Wing Screw, Washers, Spring Washers, Studs, Anchors, Marine Anchors, Nut, Hexagon Nut, Hex Nut, Hex Coupling Nut, Hex Domed Cap Nuts, Square Nut, Stud Bolts, Hex Head Bolts, Socket Hexagon Head Screw Anchor Bolt, U- Bolts, J Bolts, Mushroom Head Square Neck Bolts, T-Head Bolts, Wing Screw, Eye Bolt, Foundation Bolts, Structural Bolts.
STANDARD SPECIFICATION FOR Stainless Steel 347H Fasteners
Specifications | ASTM F593, F594, F1554 / ASME SF593, F594, F1554 |
Fasteners size | Bolt / Screw Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes. Nuts Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes. Washers Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes. Machine Screws Size : M1.6 – M12. Self Tapping Screw Size : No.2 – No. 14. |
Length | 3 mm to 200 mm |
Threads | UNF, BSW, BSF, METRIC, UNC or as required |
Standards | DIN : DIN 934, DIN 931, DIN 970, DIN 933 UTS : UNEF, NPT, UNC, UNS, UNF, NPTF ISO : JIS standards, ISO 4033, ISO 4032, ANSI – American National Standards Institute ASME B18.5 ANSI B 28.2.4 1M as per defined in ASME B16.5 standard SS Stud Bolt length ANSI B 18.2.4 2M as per defined in ASME B18.2.2 SS Hex nuts |
Dimensions | DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3 |
Surface Coating | Ptfe Coated Stainless Steel Fasteners Phosphate Coating Teflon Coating Zinc Coating Hot Dipped Galvanizing Coating Cadmium Coating Xylon Coating |
Finishing | Stainless steel : Self-Colour, Passivated, Bright Zinc Plated (BZP), Hot Dip Galvanised (HDG), Stainless Steel, Sherardized, some special one like DACROMET Geometry and Mechanically Applied coating ,Dacroment, nickel plated, anodizing, plated zinc-nickel Zinc (blue, black, yellow, white), black oxide. |
EQUIVALENT GRADES FOR Stainless Steel 347H Fasteners
STANDARD | WERKSTOFF NR. | UNS |
---|---|---|
SS 347 | 1.4550 | S34700 |
SS 347H | 1.4961 | S34709 |
CHEMICAL AlloyION FOR SS 347/347H FASTENERS
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
---|---|---|---|---|---|---|---|---|---|
347 | 8-4 | 2 max | 1.00 max | 0.045 max | 0.030 max | 20-17 | 3 – 4 | 13-9 | – |
SS 347H | 10-4 | 2.00 max | 1.00 max | 0.045 max | 0.030 max | 19-17 | 3 – 4 | 13-9 | – |
MECHANICAL PROPERTIES FOR SS 347/347H FASTENERS
Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation | Hardness (Brinell) |
---|---|---|---|---|---|---|
SS 347H | 8.0 g/cm3 | 1454 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % | – |
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