Stainless Steel 347/ 347H Flanges
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Stainless Steel 347 Nippolet Flanges, Stainless Steel 347H RTJ Flange, SS UNS S34700 Pipe Flanges, SS 347H Slip On Flanges, Stainless Steel 347H Pipe Flanges, ANSI B16.5 SS 347 Orifice Flange Supplier in Mumbai, India.
Trinity Alloys Inc is one of the well-known trading houses of SS 347 Flanges, which combines excellent mechanical properties over a wide temperature range with superior oxidation and corrosion resistance. The excellent relaxation resistance of Stainless Steel 347h Slip On Flanges is a factor in its successful use for springs at temperatures up to 1100 Degree F. Because of these properties, Stainless Steel 347 Threaded Flanges is specified for many fastener applications where superior performance is required under varying environmental conditions. They were made from hot – rolled, annealed, and joined with diameter in Stainless Steel 347h Weld Neck Flanges by the gas tungsten – arc process.

ASTM A182 SS F347 Threaded Flanges, SS 347h Nippo Flanges, SS DIN 1.4550 Socket Weld Flanges, SS 347h Blind Flanges, ASME SA182 SS 347 Lap Joint Flange, 347h SS WNRF Flanges Exporter, SS 347 Spectacle Blind Flange, SS 347h Spade Flange, SS GOST 08Ch18N12B Weld Neck Flange Dealer.
These heat treatments and the applications for which Stainless Steel UNS S34700 Blind Flanges are intended are described in the Mechanical Properties. The microstructure of Stainless Steel 347h Socket Weld Flanges, especially with regard to the effects of heat treatment, has been extensively studied and reported. Stainless Steel 347 Lap Joint Flanges can be strengthened in two ways: (1) by solution treating and age hardening or (2) by cold working and age hardening only. Stainless Steel 347 Ring Joint Type Flanges is an age – hardenable austenitic material, where weldments were found to have room – temperature fatigue strength. Strength of Stainless Steel 347 Spectacle Blind Flanges is largely dependent on the precipitation of a gamma prime phase during heat treatment. In comparable tests, Stainless Steel 347h Spacer Flanges had fatigue strength.
Standard Specification For SS 347/ 347H Flanges
Specifications | ASTM A182 / ASME SA182 |
Size | 1/2″ (15 NB) to 48″ (1200NB) |
Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
SS 347/ 347H Pipe Flanges Chemical Composition
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
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 – 20.00 | 8xC – 1.10 | 9.00 – 13.00 | 63.72 min |
SS 347/ 347H Plate Flanges Mechanical Properties
Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
SS 347 | 8.0 g/cm3 | 1454 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
SS 347H | 8.0 g/cm3 | 1454 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Equivalent Grades for SS 347/ 347H Flanges
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 | - | - | - | X6CrNiNb18-12 |
Types of Stainless Steel 347/ 347H Flanges
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Stainless Steel 347/ 347H Flanges Packaging

Stainless Steel 347/ 347H Flanges are widely used in various industries including petrochemical, oil and gas, power generation, bulk liquid transportation, chemicals, pharmaceuticals, pulp and paper manufacturing, textiles and others. All our SS 347/ 347H Flange are manufactured in accordance with international standards. Stainless Steel 347/ 347H Pipe Flange are packaged to ensure that there is no damage during transit. In case of exports, standard export packaging is done in wooden cases. All Stainless Steel 347/ 347H Plate Flanges are marked with Grade, Lot No, Size, Degree and our trade mark. On special requests we can also, make custom marking on 347/ 347H Stainless Steel Flanges.
Popular Search, Exports & Domestic Supply SS 347/ 347H Flanges
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