Stainless Steel 347H Flanges
The high properties of the alloy can be obtained by cold reduction and stress relief annealing within the carbide precipitation region of 800 to 1500°F without experiencing any subsequent intergranular corrosion. In this process, the precipitation of columbium-tantalum carbides occurs within the grains instead of at grain boundaries. Our Stainless Steel 347H Socket Weld Flanges are useful for applications that intermittently involve heating in the temperature range of 800°F – 1650°F or for welding where the work is not amenable to post-weld annealing. These flanges, suited for oil refineries, flaunt excellent resistance to polythionic acid-induced stress corrosion cracking.
Stainless Steel 347H Flanges Manufacturers, Stainless Steel 347H Flanges Suppliers, Stainless Steel 347H Flanges Stockists, Stainless Steel 347H Flanges Exporters
Stainless Steel 347H Flanges Manufacturers in India, Stainless Steel 347H Flanges Suppliers in India, Stainless Steel 347H Flanges Stockists in India, Stainless Steel 347H Flanges Exporters in India
Stainless Steel 347H Weld Neck Flanges are used for high-temperature chemical processes, heavy-duty exhaust systems, general refinery piping, high-pressure steam pipes, and heat exchanger tubes. Columbium addition enhances the intergranular corrosion resistance of these flanges by preventing carbide precipitation and subsequent intergranular corrosion. Our experience obliges the band of Stainless Steel 347H Flanges, which involves SS 347H Slip-On Flanges, SS 347H Weld Neck Flanges, SS 347H Socket Weld Flanges, SS 347H Blind Flanges, SS 347H Orifice Flanges, SS 347H Spectacle Blind Flanges, SS 347H Screwed/Threaded Flanges, SS 347H Reducing Flanges, and SS 347H Ring Type Joint (RTJ) Flanges
We make sure that during operation, our SS 347H Flanges are at their best performance by using slow speeds and constant positive feeds to minimize the tendency to work harden. Our products can be welded by generally used fusion and resistance welding techniques, which make them versatile in various industrial applications. These Stainless Steel 347H Slip-On Raised Flanges find applications, among others, in heavy-duty exhaust systems, high-temperature chemical processes, general refinery piping, heat exchanger tubes, high-pressure steam pipes, and radiant superheaters for high-temperature steam service. The content of niobium is added to avoid the formation of chrome carbides near grain boundaries by linking itself with carbon and further increasing strength and durability.
The raw material test reports, 100% radiography test approvals, and detailed inspection reports are accompanied by test certifications. The certifications and the accompanying documents are provided to the purchasers upon request. We package our products marked by strong environmental packaging materials in a bid to ensure that the flanges remain intact up to the time of dispatch. We promise safe ways of ensuring the products are delivered and that our deliveries find their way in optimal conditions to the clients in the different countries.
Stainless Steel 347H Flanges Manufacturers in Mumbai, Stainless Steel 347H Flanges Suppliers in Mumbai, Stainless Steel 347H Flanges Stockists in Mumbai, Stainless Steel 347H Flanges Exporters in Mumbai
347H Stainless Steel Flanges Equivalent Grades
| STANDARD | UNS | WNR. | JIS | EN |
|---|---|---|---|---|
| SS 347 | S34700 | 1.4550 | SUS 347 | X6CrNiNb18-10 |
| SS 347H | S34709 | 1.4961 | SUS 347H | X6CrNiNb18-12 |
Specification of Stainless Steel 347H Flanges
| Parameter | Details |
|---|---|
| Stainless Steel Flanges Specification | ASTM A182 / ASME SA182 |
| Dimension Standard | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Size | 1/2" (15 NB) to 48" (1200NB) |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Flange Face Type | Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| DIN Flanges | DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673. |
| JIS Flanges | JIS B2220 5K, JIS B2220 10K, JIS B2220 16K, JIS B2220 20K |
| BS Flanges | BS4504 PN 6, BS 4504 PN 10, BS4504 PN 16, BS4504 PN 25, BS4504 PN 40, BS 4504 PN 64, BS 4504 PN 100, BS 4504 PN 160, BS 4504 PN 250, BS 10, BS Table D, BS Table E, BS Table F, BS Table H. |
Chemical Composition of Stainless Steel 347H Flanges
| Grade | C | Cr | Mn | Ni | P | S | Si | Cb/Ta |
|---|---|---|---|---|---|---|---|---|
| 347 | 0.08 max | min: 17.0 max: 20.0 |
2.0 max | min: 9.0 max: 13.0 |
0.04 max | 0.30 max | 0.75 max | min:10x C max: 1.0 |
| 347H | min: 0.04 max: 0.10 |
min: 17.0 max: 20.0 |
2.0 max | min: 9.0 max: 13.0 |
0.03 max | 0.30 max | 0.75 max | min:10x C max: 1.0 |
Mechanical Properties Of Stainless Steel 347H Flanges
| Grade | Tensile Strength ksi (MPa) min |
Yield Strength 0.2% ksi (MPa) min |
Elongation (% in 50mm) min |
Hardness (Brinell) MAX |
Hardness (Rockwell B) MAX |
|---|---|---|---|---|---|
| 347/347H | 75 (515) |
30 (205) |
40 | 201 | 95 |
Physical Properties of 347H Stainless Steel Flanges
| Density lbm/in3 |
Coefficient of Thermal Expansion (min/in)-°F |
Thermal Conductivity BTU/hr-ft-°F |
Specific Heat BTU/lbm-°F |
Modules of Elasticity (annealed)2-psi |
|---|---|---|---|---|
| 0.288 | at 68 – 212°F: 9.2 at 68 – 1832°F: 11.4 |
68-932°F: 14.7 | at 32 – 212°F: 0.12 | in tension (E): 28 x 106 |
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