Inconel 718 Nickel Alloy 718 Tube

Inconel 718 Nickel Alloy 718 Tube

Alloy 718 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 postweld cracking, are outstanding.

The ease and economy with which 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

Nickel (plus Cobalt) .......................................................................50.00-55.00
Chromium......................................................................................17.00-21.00
Iron ...............................................................................................Balance*
Niobium (plus Tantalum)................................................................4.75-5.50
Molybdenum .................................................................................2.80-3.30
Titanium.........................................................................................0.65-1.15
Aluminum ......................................................................................0.20-0.80
Cobalt ..........................................................................................1.00 max.
Carbon..........................................................................................0.08 max.
Manganese ..................................................................................0.35 max.
Silicon ..........................................................................................0.35 max.
Phosphorus..................................................................................0.015 max.
Sulfur............................................................................................0.015 max.
Boron ...........................................................................................0.006 max.
Copper...........................................................................................0.30 max.

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 attack by oxidizing media and sulfur compounds.

Molybdenum is known to contribute to resistance to pitting in many media.

1. Inconel Alloy (Inconel718,Inconel 625,Inconel 725,InconelX-750,

Inconel600,Inconel690,Inconel601 Inconel 617ect)
2. Incoloy Alloy (Incoloy 825,Incoloy 800,Incoloy800H,Incoloy800HT,

Incoloy901,incoloyA-286, Incoloy925/926,etc)
3. Cobalt-based Superalloy(Hayness188/GH5188,Hayness25/ Alloy L605,Co50,etc)
4. Precision alloys(Ni36,4J29,1J79,4J42,4J50,1J22)
5. Hastelloy alloy(Hastelloy C-276,Hastelloy B,HastelloyG30,HastelloyB3,

HastelloyC-22 HastelloyX, Hastelloy C-4)
6. Monel alloy (Monel400,MonelK500)
7. Permalloy alloy(1J79.1J85)
8. Nimonic Alloys (Nimonic 90, Nimonic 80A, Nimonic 75 ,Nimonic 60)
9.Waspaloy Alloy and other Material