Corrosion Resistance High Strength Alloys , Alloy 59 Machining Nickel Alloys

Alloy 59 with Excellent Corrosion Resistance and High Mechanical Strength

Alloy 59 is a nickel-chromium-molybdenum alloy with an extra-low carbon and silicon content. A-one Alloy is ready to supply high quality Alloy 59 products to customers from worldwide.

Chemical composition (%):

Cr=22.00~24.00, Fe≤1.50, C≤0.010, Mn≤0.50, Si≤0.10, Mo=15.0~16.5, Co≤0.30, Al=0.1~0.4, P≤0.015, S≤0.005 –per ASTM standard

Standards:

ASTM B622 seamless pipe

ASTM B619/626 welded pipe

ASTM B575 sheet and plate

ASTM B574 rod and bar

ASTM B575 strip

ASTM B564 forging

Advantages

•  Outstanding resistance to a wide range of corrosive media under oxidising and reducing conditions
•  Excellent resistance to pitting and crevice corrosion and freedom from chloride-induced stress-corrosion cracking
•  Excellent resistance to mineral acids, such as nitric, phosphoric, sulphuric and hydrochloric acids and in particular to sulphuric and hydrochloric acid mixtures
•  Excellent resistance to contaminated mineral acids
•  Good corrosion resistance to hydrochloric acid over the whole concentration range up to 40 °C (104 °F).
•  Good workability and weldability without susceptibility to post-weld cracking
•  Approval for pressure-vessel use with wall temperatures of –196 to 450 °C (– 320 to 840 °F)
•  Approved in NACE Standard MR0175, to the highest Level VII for sour gas service

Applications

•  Components in organic processes involving chlorides, particularly when acid chloride catalysts are employed
•  Digesters and bleaching plants in the pulp and paper industry
•  Scrubbers, reheaters, dampers, wet fans and agitators for incinerator gas and flue gas desulphurisation (FGD)
•  Equipment and components in sour gas service
•  Reactors for acetic acid and acetic anhydride
•  Sulphuric acid coolers