|
درباره:
|
Incoloy 800/800H/800HT(UNS N08800/ UNS N08810/ UNS N08811)
Chemical Composition Wt.% % Ni Cr Fe C Mn Si Cu S Al Ti
800 Min 30 19 0.15 0.15
Max 35 23 bal 0.10 1.5 1 0.75 0.015 0.60 0.60
800H Min 30 19 0.05 0.15 0.15
Max 35 23 bal 0.1 1.5 1 0.75 0.015 0.6 0.60
800HT Min 30 19 0.06 0.15 0.15
Max 35 23 bal 0.10 1.5 1 0.75 0.015 0.60 0.60
aluminum +titanium for 0.85—1.20
Physical
Constants Density.g/cm³ 8.0 g/cm³
Melting Range 1350-1400 ℃
The minimum mechanical properties of the alloy at room temperature alloy
Typical mechanical properties tensile strength
Rm N/mm2 Yield Strength
RP0.2N/mm2 Elongation
A5 %
800 500 210 35
800H 450 180 35
Characters 1. Excellent corrosion resistance in very hot aqueous media up to 500℃
2. Good resistance to stress corrosion properties
3. very good processability
Microstr ycture 800H for the face-centered cubic lattice structure. The extremely low carbon content and increased Ti: C ratio increase structural stability and maximum sensitization as well as intergranular corrosion resistance. Low temperature annealing around 950 ℃ to ensure fine grain structure.
Applications 1. Nitric acid condenser - -resistant to nitric acid corrosion
2. Steam heating tube - -good mechanical properties
3. Heating element tube - -very good mechanical properties
For applications up to 500 ℃, the alloy is annealed. Customized Incoloy Alloys
website:http://www.718alloy.com/incoloy-alloys/
|
