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Danyang Kaixin Alloy Material Co., Ltd.
Inconel 718
Product properties:

Brand: KX-Alloy

Approximate brand: UNS N07718  GH4169

Certification certificate: ISO9001:2015

Place of Origin: Danyang, Jiangsu, China

Product Description

Alloy category: corrosion resistant alloy

Substrate shape: axial wire/strip/straight strip

Alloy series: nickel-chromium iron alloy

Implementation standards: ASTM B564

Applications: aerospace, petrochemical, Marine, energy, industrial, automotive

Product description and application

Inconel 718 is Fe-Ni-Cr based precipitation hardening deformation superalloy, long-term use temperature range -253~650℃, short-term use temperature of 800℃, at 650℃ below with high strength, good toughness and oxidation resistance and corrosion resistance in high and low temperature environment. As well as good processability and weldability and long-term structure stability.

It is used to make ring parts, blades, fasteners and structural parts in aviation, aerospace and petrochemical industry, etc., to make a variety of parts used in petrochemical industry, which can be mass produced and the use condition is good. The alloy can be cooled by helium gas during vacuum consumable remelting, which can effectively reduce niobium segregation. The ring parts can be produced by jet forming process, which can reduce cost and cycle, and the production range can be expanded by superplastic forming. It is suitable for making ring parts, blades, fasteners and structural parts in aviation, aerospace and petrochemical industry.

Inconel 718Composition content
Ni:50.0%~55.0%
Fe:11.15%~22.85%
Cr:17.0%~21.0%
Nb:4.75%~5.50%
Mo:2.8%~3.3%
Ti:0.65%~1.15%
Co≤1.0%
AI:0.2%~0.8%
Mn≤0.35%
Si≤0.35%
Cu≤0.30%
C≤0.08%
S≤0.015%
Vacuum induction furnace
Electroslag remelting
Product physical properties
Density

ρ=8.24 g/cm³

Melting temperature range

1260-1320 ℃

Mechanical properties
Instant tensile properties Brinell hardness High temperature and long lasting
Test temperature/℃ Rm(MPa) Rp0.2 Rm(MPa) A(%) Z(%) HBW Test temperature/℃ Test stress/MPa Time/h Elongation after break A
room temperature ≥1270 ≥1030 ≥12 ≥15 ≥345 650 690 ≥23 ≥4
650℃ ≥1000 ≥860 ≥12 ≥15 /

 

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Product heat treatment system
ⅠStandard heat treatment system

(950~980)℃±10℃×1h/AC+720℃±5℃×8h/FC(50℃±10℃/h)→620℃±5℃ ×8h/AC;

Ⅱ Direct aging

720℃±10℃×8h/FC(50℃±10℃/h)→620℃±10℃×8h/AC。