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Nickel Alloy 718, commercially known as Inconel 718, is a precipitation-hardenable nickel-chromium superalloy renowned for its exceptional strength and corrosion resistance up to 1300°F (700°C). This high-performance alloy maintains excellent yield strength and tensile strength while offering superior weldability and creep rupture properties, making it a premier choice for demanding applications in aerospace, oil & gas, and high-temperature manufacturing.
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Products Description
Alloy 718 (UNS N07718/W.Nr. 2.4668) is a high-strength, corrosion-resistant nickel-chromium material used at -423° to 1300°F.
The age-hardenable alloy can be readily fabricated, even into complex parts. Its welding characteristics, especially its resistance to post-weld cracking, are outstanding.
The ease and economy with which INCONEL alloy 718 can be fabricated, combined with good tensile, fatigue, creep, and rupture strength, have resulted in its use in a wide range of applications. Examples of these are components for liquid-fueled rockets, rings, casings, and various formed sheet metal parts for aircraft and land-based gas turbine engines, and cryogenic tankage. It is also used for fasteners and instrumentation parts.
Alloy 718 (UNS N07718/W.Nr. 2.4668)
|
Weight % |
C |
Mn |
P |
S |
Si |
Cr |
Ni |
Mo |
Cb |
Ta |
Ti |
Al |
Co |
B |
Cu |
Fe |
|
Alloy 718 |
0.08 |
0.35 |
0.015 |
0.015 |
0.35 |
17-21 |
50-55 |
2.8-3.30 |
4.75-5.50 |
0.05 |
0.65-1.15 |
0.20-0.80 |
1.00 |
0.006 |
0.30 |
Rem |
Mechanical Properties of Alloy 718
|
Material |
Condition |
Tensile Strength |
Yield Strength |
Elongation |
Hardness |
|
Alloy 718 Sheet |
AMS 5596 < 0.1874" thick |
140 |
80 |
30 |
102 HRB |
|
Alloy 718 Sheet |
AMS 5596 Aged < 0.1874" thick |
180 |
150 |
12 |
≥36 HRC |
|
Alloy 718 Sheet |
AMS 5597 |
140 |
75 |
30 |
≤ 25 HRC |
|
Alloy 718 Sheet |
AMS 5597 + Aged |
180 |
150 |
15 |
≥38 HRC |
Why Choose Our Inconel 718?
INCONEL alloy 718 has excellent corrosion resistance to many media. This resistance, which is similar to that of other nickel-chromium alloys, is a function of its composition. Nickel contributes to corrosion resistance in many inorganic and organic, other than strongly oxidizing, compounds throughout wide ranges of acidity and alkalinity. It also is useful in combating chloride-ion stress-corrosion cracking. Chromium imparts an ability to withstand attacks by oxidizing media and sulfur compounds. Molybdenum is known to contribute to resistance to pitting in many media.
Certified Quality: All material is supplied with full traceability and Mill Test Certifications to standards including AMS, ASTM, and ASME.
Extensive Inventory: We stock a comprehensive range of sizes and forms for quick delivery.
Technical Expertise: Our metallurgy specialists are available to provide technical support and material selection guidance.
Competitive Pricing: We offer cost-effective solutions for both prototype and production volumes.
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