Nickel

Inconel 718 Nickel Alloy Tube for Petrochemical Applications

Detailed Photos Product Description Inconel Alloy · Inconel alloy series Inconel is a nickel-chromium-molybdenum alloy designed to resist a wide range of severely corrosive environments, pitting and crevice corrosion. This nickel steel alloy also displays exceptionally high yield, tensile, and creep-rupture properties at high temperatures. This nickel alloy is used from cryogenic temperatures up to long term service at 1200°F. One of the distinguishing features of Inconel 718's composition is the addition of niobium to permit age hardening which allows annealing and welding without spontaneous hardening during heating and cooling. The addition of niobium acts with the molybdenum to stiffen the alloy's matrix and provide high strength without a strengthening heat treatment.Other popular nickel-chromium alloys are age hardened through the addition of aluminum and titanium. This nickel steel alloy is readily fabricated and may be welded in either the annealed or precipitation (age) hardened condition. This superalloy is used in a variety of industries such as aerospace,chemical processing,marine engineering, pollution-control equipment, and nuclear reactors. · Product form Pipe, plate, strip, round rods, flat rods, forgings, wire, special profiles, extrusions. · Chemical composition Inconel Alloy Series Item 600 601 617 625 690 718 X750 825 C ≤0.15 ≤0.1 0.05-0.15 ≤0.1 ≤0.05 ≤0.08 ≤0.08 ≤0.05 Mn ≤1 ≤1.5 ≤0.5 ≤0.5 ≤0.5 ≤0.35 ≤1 ≤1 Fe 6-10 bal ≤3 ≤5 7-11 bal 5-9 ≥22 P ≤0.015 ≤0.02 ≤0.015 ≤0.015 N/A N/A N/A N/A S ≤0.015 ≤0.015 ≤0.015 ≤0.015 ≤0.015 ≤0.01 ≤0.01 ≤0.03 Si ≤0.5 ≤0.5 ≤0.5 ≤0.5 ≤0.5 ≤0.3 ≤0.5 ≤0.5 Cu ≤0.5 ≤1 N/A N/A ≤0.5 ≤0.3 ≤0.5 1.5-3 Ni ≥72 58-63 ≥44.5 Bal ≥58 50-55 ≥70 38-46 Co N/A N/A 10-15 ≤1.0 N/A ≤1 ≤1 N/A Al N/A 1-1.7 0.8-1.5 ≤0.4 N/A 0.2-0.8 0.4-1 ≤0.2 Ti N/A N/A ≤0.6 ≤0.4 N/A N/A 2.25- 2.75 0.6-1.2 Cr 14-17 21-25 20-24 20-23 27-31 17-21 14-17 19.5-23.5 Nb+T a N/A N/A N/A 3.15-4.1 5 N/A 4.75-5.5 0.7-1.2 N/A Mo N/A N/A 8-10 8-10 N/A 2.8-3.3 N/A 2.5-3.5 B N/A N/A ≤0.006 N/A N/A N/A N/A N/A · Physical properity Inconel Alloy Series Item 600 625 718 X750 Melting Point 1370-1425ºC 1290-1350ºC 1260-1340ºC 1395-1425ºC Density 8.4g/cm³ 8.4g/cm³ 8.24g/cm³ 8.25g/cm³ Alloy State Annealing External diameter≥127 Annealing External diameter≤127 Solid solution Solution treatment Solution treatment Tensile Strength RmN/mm2 550 550 690 <965 1170 Yield Strength Rp0.2N/mm 205 205 276 550 790 Extensibility A5% 35 35 30 30 10 Brinell Hardness HB - - ≤220 ≤363 302-363 Company Profile FAQ

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