
Rajendra Pipe Fittings is an esteemed manufacturer, supplier, and distributor ASTM A403 Gr. WP 347/347H Buttweld Fittings. Alloy 347 is stabilized austenitic columbium stainless steel alloy. This alloy has good general corrosion resistance and better resistance in strong oxidizing conditions. This alloy has very good resistance to inter granular corrosion after being exposed to temperatures in the chromium carbide precipitation with temperature ranging from 800 – 1500 degree F. The 347/347H alloy has excellent creep strength and oxidation resistance to 1500 degree F. These buttweld fittings also possess good low temperature toughness. ASTM A403 Buttweld Fittings is frequently used for the fabrication of equipment, which must be placed in service under severe corrosive conditions, and is also common to the petroleum refining industries. This alloy was produced in order to provide higher creep resistance and for operating at a temperature of above 1000 degree F. The full size of our ASTM A403 Gr. WP 347/347H Buttweld Fittings ranges from ½” NB to 24” NB. These ASTM A403 Buttweld Fittings are classified into martensitic, ferritic and austenitic types based on the structure. Our SS 347/347H Buttweld Fittings can effectively withstand high temperatures, vibrations and shock. These ASTM A403 are applicable in various industries such as gas, petroleum, pulp and paper, and pharmaceutical industry.
We ensure the higher quality of our products by putting them under tests meeting the flawless quality. Some of the tests are flaring test, flattening test, hardness test, impact test, positive material identification, intergranular corrosion resistant test, micro and macro etc. are performed to meet the international and national set industry norms and standards. At Rajendra Pipe Fittings we put our products into stringent testing to ensure the high quality. We are concerned about our customer’s satisfaction hence keeping a close eye on the services we provide. We are engaged in providing the best services to our valued customers at Rajendra Pipe Fittings. Our team strives hard to manufacture and maintain the high quality standards of our products to meet both national and international standards.
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 |
Specifications : ASTM A403 / ASME SA403
Dimensions : ASME/ANSI B16.9, ASME SB16.28, MSS-SP-43
Size : 1/8” NB TO 48” NB. (Seamless & 100% X-Ray Welded, Fabricated)
Type : Seamless / Welded / Fabricated
Bending Radius : R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
Thickness : Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS
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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 |
Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
347 | 8.0 g/cm3 | 1454 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
347H | 8.0 g/cm3 | 1454 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
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