Inconel 718 is a precipitation-hardening nickel-chromium-iron alloy with outstanding high-temperature strength, excellent corrosion resistance, and good fabricability. It maintains high strength and toughness up to 700°C, offering superior resistance to oxidation, creep, and stress corrosion cracking. Compared to other nickel-based alloys, it features good weldability and formability, making it widely used in aerospace, gas turbines, oil & gas, and high-temperature structural applications.

Advantage

1. Excellent high-temperature strength and creep resistance up to 700°C 2. Good weldability and fabricability, suitable for complex forming and machining 3. Outstanding resistance to stress corrosion cracking and oxidation at elevated temperatures

Ingredient

• C
• ≤0.08
• Si
• ≤0.35
• Mn
• ≤0.35
• P
• ≤0.015
• S
• ≤0.015
• Ni
• 50.0~55.0
• Cu
• ≤0.30
• Fe
• 16.0-19.0
• Cr
• 17.0-21.0
• Mo
• 2.80-3.30
• Ti
• 0.65-1.15
• Al
• 0.20-0.80
• Co
• ≤ 1.00
• Nb+Ta
• 4.75-5.50

Standard

• 🇺🇸 美国
• ASTM B670 / ASME SB670
• 🇨🇳 中国
• GB/T 15007-2017、GB/T 14992-2008

Mechanics

• STATE
• RP
• YIELD
• EXTEND
• SHRINK
• HARDNESS
• IMPACT
• Solution Annealed
• ≥ 965 MPa
• ≥ 550 MPa
• ≥ 30 %
• ≥ 30 %
• ≤ 220 HB
• ≥ 27 J
• Solution Treated & Aged
• ≥ 1240 MPa
• ≥ 1035 MPa
• ≥ 12 %
• ≥ 15 %
• HRC 36-45
• ≥ 20 J

• STATE
• Solution Annealed
• RP
• ≥ 965 MPa
• YIELD
• ≥ 550 MPa
• EXTEND
• ≥ 30 %
• SHRINK
• ≥ 30 %
• HARDNESS
• ≤ 220 HB
• IMPACT
• ≥ 27 J
• STATE
• Solution Treated & Aged
• RP
• ≥ 1240 MPa
• YIELD
• ≥ 1035 MPa
• EXTEND
• ≥ 12 %
• SHRINK
• ≥ 15 %
• HARDNESS
• HRC 36-45
• IMPACT
• ≥ 20 J