Standard Grade Trade Name UNS No. DIN BS JIS French Specs INCONEL 625 UNS N06625 NiCr22Mo9Nb WS 2.4856 NA21 NCF625TB AFNOR NC22DNb Specification ASTM B444, ASTM B829, ASME SB 444, ASME SB 829, AMS 5581, BS3074 NA21, AMS 5581 Type 1, DIN 17751, JIS G4904 Typical use Alloy 625 (UNS N06625) is a nickel-chromium-molybdenum alloy with an addition of niobium. The addition of molybdenum acts with the niobium to stiffen the alloy matrix, providing a high strength without a strengthening heat treatment. The alloy resists a wide range of corrosive environments and has a good resistance to pitting and crevice corrosion. Alloy 625 is used in chemical processing, aerospace and marine engineering oil & gas, pollution control equipment and nuclear reactors. Weight Formula Average Wall: (OD-WT) x WT x 0,0270 = Kg/m (all sizes in mm) Minimum Wall: (OD-WT) x WT x 0,0281 = Kg/m (all sizes in mm) Technical Data Sheet Chemical Composition Limits Weight % Ni Cr Mo Nb + Ta Fe Ti C Mn Si S P Al Co Alloy 625 58.0 min 20 - 23 8 -10 3.15 -4.15 5.0 max 0.40 max 0.10 max 0.50 max 0.50 max 0.15 max 0.15 max 0.40 max 1.0 max Typical Mechanical Properties Material Form and Condition Tensile Strength MPa Yield Strength (0.2% Offset) MPa Elongation 4D(%) Hardness HB Ksi MPa Ksi MPa Alloy 625 Tube Seamless Annealed 120 827 60 414 35 - Availability Alloy 625 (UNS N06625) is available in Round Bar, Flat Bar, Extruded section, Pipe, Tube, Plate, Sheet, Strip, Plate, Hexagon, Forging Stock, Extruded Section and Wire. View Stock List, please contact Sales for further availability. Services Every order is treated as carefully and timely as possible, and shipments are handled to ensure that all export procedures are followed correctly so that your order arrives in perfect condition as quickly as possible. Disclaimer Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.