Kencotube is a known manufacturer of Copper Nickel Olets Fittings, which finds its greatest application in areas of high temperatures and pressures combined with high velocity and destructive turbulence. Copper content and nickel content in these Copper Nickel Outlet Fittings are completely soluble in each other, giving rise to a range of alloys that includes both copper-nickel (Cu-Ni) and nickel-copper alloys. Cu-Ni Olets Fittings is the stronger with yield strength in the annealed condition of ~150MPa compared with 120MPa of the lower nickel alloy. Cupronickel Olets Fittings is probably the most used grade as it is less expensive than the higher nickel alloy. The small iron content in Cu-Ni Outlet Fittings, gives an extraordinary resistance to general corrosion and stress corrosion cracking, making it very suitable and ideal for the marine or industrial industries.
Cupronickel Outlet Fittings are single phase and cannot be hardened by heat treatment, where the only method of increasing tensile strength is by cold working which, when the metal is in the fully hard condition, can match that of good quality carbon steel. Work hardening in Copper Nickel Alloy Olets Fittings, however, has implications with respect to welding in that there will be some strength loss in the HAZs. Low strength region in Copper Nickel Alloy Outlet Fittings can cause problems during welding procedure qualification testing of transverse bend coupons, most of the deformation being concentrated in the narrow area of strength loss.
|Specifications||ASTM B366, B61, B62, B151, B152, / ASME SB366, SB61, SB62, SB151, SB152|
|Standard||ASME/ANSI B16.11, MSS-SP-97, MSS-SP-79, JIS B2316, BS 3799 etc|
|Size||¼" to 24″|
|Connect Type||Welded, threaded, BW, SW|
|Grades||ASTM / ASME SB 61 UNS NO. C 92200 & ASTM / ASME SB 62 UNS NO. C 83600.ASTM / ASME SB 151 UNS NO. 70600, 71500, C 70600 ( CU -NI-90/10), C 71500 ( CU -NI- 70/30), ASTM / ASME SB 152 UNS NO C 10100, C 10200, C 10300, C 10800, C 12000, C12200.|
|Copper Nickel 90/10||2.0872||C70600|
|Copper Nickel 70/30||2.0882||C71500|
|Cupro Nickel 90/10||88.6 min||.05 max||1.0 max||1.8 max||1 max||9-11 max|
|Cupro Nickel 70/30||65.0 min||.05 max||1 max||0.4-1.0||1 max||29-33|
|Grade||Density||Melting Point||Tensile Strength||Yield Strength (0.2%Offset)||Elongation|
|Cu-Ni 90/10||0.323 lb/in3 at 68 F||2260 F||50000 psi||20000 psi||30 %|
|Cu-Ni 70/30||0.323 lb/in3 at 68 F||2260 F||50000 psi||20000 psi||30 %|
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