Kencotube is a pioneer in supplying and manufacturing of Hastelloy Forged Fittings, where one of the chief attributes of these nickel alloys is their resistance to chloride-induced stress corrosion cracking. Seawater is probably the most common aqueous salt solution in these Hastelloy Forged Pipe Fittings, where not only is it encountered in marine transportation and offshore oil rigs, but it is also used as a coolant in coastal facilities. Hastelloy Forged Pipe Fittings is very amenable to the Gas Metal Arc (GMA/MIG), Gas Tungsten Arc (GTA/TIG), and Shielded Metal Arc (SMA/Stick) welding processes. Wrought products of Hastelloy Alloy Forged Pipe Fittings are supplied in the Mill Annealed (MA) condition, unless otherwise specified. The solution annealing procedure has been designed to optimize Hastelloy Alloy Forged Fittings corrosion resistance and ductility, where matching filler metals (i.e. solid wires and coated electrodes) are available for these processes and welding guidelines.
In all hot forming operations, Hastelloy Forged Threaded Fittings should be re-annealed, to restore optimum properties, which should also be re-annealed after any cold forming operations that result in an outer fiber elongation. The annealing temperature for Hastelloy Forged Socket Weld Fittings is 1121 Degree C (2050 Degree F), and water quenching is advised (rapid air cooling is feasible with structures thinner). As is evident from the following results, Hastelloy Alloy Forged Threaded Fittings are much more resistant to this form of attack than the comparative, austenitic stainless steels.
|Specifications||ASTM B564 / ASME SB564|
|Standards||ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799|
|Size||1/8″ – 4″|
|Class||2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS|
|Type||Socket Weld (S/W) & SCREWED (SCRD) – NPT, BSP, BSPT|
|Forged Fittings Types||45 Deg Elbow, 90 Deg Elbow, Forged Tee, Union, Full Coupling, Half Coupling, Cross, Cap, Swage Nipple, Plug, Bush, Welding Boss, Hexagonal Nipple etc.|
|Material Grade||UNS||W.Nr.||Trade Name|
|Hastelloy C276 Forged Fittings||N10276||2.4819||Hastelloy C276, Nickelvac HC-276, Inconel C2760, Nicrofer 5716|
|Hastelloy C22 Forged Fittings||N06022||2.4602||Hastelloy C22, Inconel® 22, Nicrofer® 5621|
|Hastelloy B2 Forged Fittings||N10665||2.4617||Hastelloy B2®, Nimofer® 6928|
|Hastelloy X Forged Fittings||N06002||2.4665||Hastelloy X®, Nickelvac® HX, Nicrofer® 4722, Altemp® HX, Inconel® HX|
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