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Brief introduction:
Alloy 800H and alloy 800HT are Ni-Fe-Cr alloys that have the same basic composition as alloy 800 but with significantely higher creep-rupture strength,normally used above approximately 1100℉（593℃）where resistance to creep and stress rupture is required.
Alloy 800HT is used in chemical and petrochemical processing, power plants for super-heater and reheater tubing, industrial furnaces and heat-treating equipment.
Main specifications:
Chinese UNS Werkstoff Nr. NS112 N08810 1.4958 800HT N08811 1.4959 Chemical composition under ASTM B408-2016 standard:
Grade chemical composition,% Ni Cr Fe Mn C Cu Si S Al Ti Al+Ti alloy N08810 30.0-35.0 19.0-23.0 ≥39.5 ≤1.5 0.05-0.1 ≤0.75 ≤1.0 ≤0.015 0.15-0.6 0.15-0.6 / alloy N08811 30.0-35.0 19.0-23.0 ≥39.5 ≤1.5 0.06-0.1 ≤0.75 ≤1.0 ≤0.015 0.15-0.6 0.15-0.6 0.85-1.2 Fe element shall be determined arithmetically by difference.
wire,rod,forging, bar,strip,sheet/plate,tube/pipe.
Main produce standards:
Wire,Rod, Bar Forging Plate/Sheet/Strip Seamless Tube/Pipe ASTM B408
ASME SB408ASTMB564 ASME SB564 ASTM B409 ASME SB409 AMS5871 ASTM B163 ASME SB163 ASTM B407 ASME SB407
