MATERIAL CATEGORY: Cr-Ni-Mo-Cu-Si based alloy Hastelloy Alloy D-205
CHEMICAL COMPOSITION (WEIGHT %)
C (％): ≤ 0.030
Si (％): 4.00 ~ 6.00
Mn (％): ≤ 1.50
P (％)≤: 0.025
C (％): ≤ 0.030
Si (％): 4.00 ~ 6.00
Mn (％): ≤ 1.50
P (％)≤: 0.025
S (％)≤: 0.010
Cr (％): 19.0 ~ 22.0
Cr (％): 19.0 ~ 22.0
Ni (％): Remainder
Mo (％): 1.85 ~ 3.50
Co (%): -
Co (%): -
W (%): -
Al (%): -
Al (%): -
Cu (%): 1.50 ~ 3.00
Ti (%): -
Ti (%): -
Fe (%): 5.00 ~ 7.00
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Tensile strength, σb/≥ MPa: 979
Yield strength, σ0.2/≥ MPa: 338
Elongation, δ ≥(％): 29.0
Reduction of area, ф ≥ (％): -
Hardness via annealing | HBW: -
Reduction of area, ф ≥ (％): -
Hardness via annealing | HBW: -
TYPICAL APPLICATIONS
Superalloy is widely used to produce the high temperature components for gas turbine in the field of aviation, naval vessels and industry, such as turbine blade, guide blade, turbine disc, high pressure compressor disc, combustor, and also production of energy conversion devices, such as aerospace craft, rocket motor, nuclear reactor, petrochemical equipments, coaly transforming and so on. The alloy is usually produced by AOD / VOD /VIM followed by electroslag refining (ESR) / VAR if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers’ requirements.
Bars are usually supplied bright surface in the solution annealed condition.
Final heat treatment – solution + Aged or Double aged.
FORMS AND SHAPES
Round bar (Diameter): 5.50 ~ 550mm
Square bar / Flat bar: 3 ~ 450mm
Superalloy is widely used to produce the high temperature components for gas turbine in the field of aviation, naval vessels and industry, such as turbine blade, guide blade, turbine disc, high pressure compressor disc, combustor, and also production of energy conversion devices, such as aerospace craft, rocket motor, nuclear reactor, petrochemical equipments, coaly transforming and so on. The alloy is usually produced by AOD / VOD /VIM followed by electroslag refining (ESR) / VAR if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers’ requirements.
Bars are usually supplied bright surface in the solution annealed condition.
Final heat treatment – solution + Aged or Double aged.
FORMS AND SHAPES
Round bar (Diameter): 5.50 ~ 550mm
Square bar / Flat bar: 3 ~ 450mm
Wire rod (Diameter): 0.10 ~ 16mm
Steel strip via cold rolled: T0.1 – 3mm X W5 – 650mm X L (or in coil form)
Forging piece: Different shapes based on OEM.
Steel strip via cold rolled: T0.1 – 3mm X W5 – 650mm X L (or in coil form)
Forging piece: Different shapes based on OEM.
High silicon alloy based on the Ni-20Cr system. Its chief advantages over high silicon-iron based alloys are excellent formability, good resistance to elevated temperature embrittlement, and superior performance In many concentrations of sulfuric acid. D-205 alloy also possesses high resistance to stress corrosion cracking and is considerably more resistant to pitting corrosion than type 316L Stainless and Fe-17Cr-20Ni-5Si alloys.Given these attributes, D-205 alloy constitutes an ideal sulfuric acid, plate-heat-exchanger material. Also the alloy is very useful for all hardware involved with the processing of highly oxidizing media. An added benefit is that the yield strength of D-205 can be more than doubled by age-hardening.
Information provided by Haynes.
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Post time: Aug-25-2020