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Alloy20 Nickel Based Alloy Steel Forgings F20 / N08020 For Petrochemical Equipment
Product Name: ALLOY20 / UNS N08020
Internationally known: Alloy 20 alloy, UNS N08020, NS143, Inconel alloy20 / NAS 335X, W.Nr.2.4460
Nicrofer 3620 Nb-alloy20, ATI 20
National standards: ASTM B463 / ASME SB463, ASTM A240 / ASME SA240, ASTM B729 / ASME SB729
Main ingredients:
carbon (C) ≤ 0.07, manganese (Mn) ≤ 2.0, nickel (Ni) 32.0 to 38.0, silicon (Si) ≤ 1.0, phosphorus (P) ≤ 0.045, sulfur (S) ≤ 0.035, chromium (Cr) 19.0 ～ 21.0 ,Niobium (Nb) ≤ 1.0, aluminum (Al) ≤ 0.2, titanium (Ti) 0.6 to 1.2, copper (Cu) 3.0 to 4.0, molybdenum (Mo) 2.0 to 3.0
Physical properties:
density: 8.14g / cm3, melting point: 1370-1400 ° C, magnetic: none
Heat treatment: heat preservation between 900-1150 ℃ for 1-2 hours, fast air cooling or water cooling.
Mechanical properties:
tensile strength: σb≥550Mpa,
yield strength σb≥240Mpa:
elongation: δ≥30%,
hardness; HB135-220
Corrosion resistance and main use environment:
Alloy 20 has many excellent corrosion resistant alloys. It has good resistance to oxidizing and medium reducing corrosion. It has excellent resistance to stress corrosion cracking and good local corrosion resistance. It is satisfactory in many chemical process media. Corrosion resistance.
It has excellent anti-corrosion cracking ability and good local reduction resistance to composite medium corrosion. It is used in sulfuric acid environment and sulfuric acid solution industrial devices containing halogen ions and metal ions.
Supporting welding materials and welding process:
We recommend using AWS A5.14 welding wire ERNiCrMo-3 or AWS A5.11 welding rod ENiCrMo-3 for welding of Alloy 20 alloy. Welding process and instructions are welcome to call for details.
Applications include:
sulfuric acid pickling equipment, phosphoric acid production equipment, petrochemical equipment, coal chemical industry, offshore platforms, seawater desalination, composite boards, bellows expansion joints and other industries and products.
