UNS N07718-INCONEL alloy 718 - Studbolt and nut ASTM A193 B7,B7M,B16,B8,B8M,A453 660,A182 F55,A182 F51,ASTM A453 660 , A 347 B4B , X12CR13 , AISI 904L , ASTM A182 F44 , INCONEL 718 UNS N07718 , NITRONIC UNS 20219 XM-19 , INCOLOY alloy 925 (UNS N09925)

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UNS N07718-INCONEL alloy 718

MATERIALS


MATERIALS-studbolts,hex bolts,hex cap screw , hex nuts, fasteners I
NCONEL® alloy 718 (UNS N07718/W.Nr. 2.4668

INCONEL® alloy 718 (UNS N07718/W.Nr. 2.4668)
is a
high-strength, corrosion-resistant nickel chromium
material used at -423° to 1300°F
good tensile, fatigue,
creep, and rupture strength
The properties of INCONEL alloy 718
Applications:
liquid fueled rockets, rings, casings and
various formed sheet metal parts for aircraft and land-based
gas turbine engines, and cryogenic tankage,fasteners and instrumentation parts.

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.

Two heat treatments are generally utilized for INCONEL alloy 718:
•Solution anneal at 1700-1850°F followed by rapid cooling, usually in water, plus precipitation hardening at 1325°F for 8
hours, furnace cool to 1150°F, hold at 1150°F for a total aging time of 18 hours, followed by air cooling.
•Solution anneal at 1900-1950°F followed by rapid cooling, usually in water, plus precipitation hardening at 1400°F for 10
hours, furnace cool to 1200°F, hold at 1200°F for a total aging time of 20 hours, followed by air cooling.
If the material is to be machined, formed, or welded, it typically is purchased in the mill annealed or stress relieved
condition. The material is then fabricated in its most malleable condition. After fabrication, it can be heat treated as required
per the applicable specification.

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