Hot sales Inconel 718/ Inconel 718 API 6ACR alloy round bar for chemical processing

Short Description:

Inconel 718 is a nickel-chromium-molybdenum alloy designed to resist a wide range of severely corrosive environments, pitting and crevice corrosion. This nickel steel alloy also displays exceptionally high yield, tensile, and creep-rupture properties at high temperatures. This nickel alloy is used from cryogenic temperatures up to long term service at 1200° F. One of the distinguishing features of Inconel 718’s composition is the addition of niobium to permit age hardening which allows annealing and welding without spontaneous hardening during heating and cooling.

The addition of niobium acts with the molybdenum to stiffen the alloy’s matrix and provide high strength without a strengthening heat treatment. Other popular nickel-chromium alloys are age hardened through the addition of aluminum and titanium.

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Inconel 718 Characteristics

▪ Good mechanical properties – tensile, fatigue and creep-rupture
▪ Yield tensile strength, creep, and rupture strength properties are exceedingly high
▪ Highly resistant to chloride and sulfide stress corrosion cracking
▪ Resistant to aqueous corrosion and chloride ion stress corrosion cracking
▪ High temperature resistant
▪ Age-hardenable with a unique property of slow aging response that permits heating and cooling during annealing without the danger of cracking.
▪ Excellent welding characteristics, resistant to postweld age cracking

Standards

▪ UNS N07718
▪ ASTM B637, ASTM B670
▪ AMS 5596, AMS 5662, AMS 5663, AMS 5832
▪ ASME Case 2222-1, SFA 5.14
▪ NACE MR0175
▪ EN 2.4668, Werkstoff 2.4668
▪ GE B50TF14, B50TF15
▪ Other common names: Alloy 718, Haynes® 718, Nicrofer® 5219, Allvac® 718, Altemp® 718

Inconel 718 Chemical Composition, %

Ni	50-55	Cr	17-21
Mo	2.8-3.3	Mn	0.35 max
Cu	0.23 max	Si	0.35 max
C	0.045 max	S	0.01Max
P	0.01 max	Co	1.0 max
Cb+Ta	4.87-5.2	Pb	1000 ppm
Se	0.0005ppm	B	50mmpa
Mg	0.0006ppm	Ti	0.8-1.15
Al	0.4-0.	Fe	Balance

Mechanical Properties

	Min	Max
Ultimate tensile strength, ksi	150	-
0.2% yield strength, ksi	120	145
Elongation, %	20%	-
Reduction of area, %	35%	-
Impact Strength*Min average/ min single, ft-lbs	40/35	-
Hardness, Rockwell C	32	40

Inconel 718 Applications

▪ Chemical processing
▪ Aerospace
▪ Liquid fuel rocket motor components
▪ Pollution-control equipment
▪ Nuclear reactors
▪ Cryogenic storage tanks
▪ Valves, fasteners, springs, mandrels, tubing hangers
▪ Well head completion equipment and blow out preventers (BOP’s)
▪ Gas turbine engine parts

available sizes and specifications

Inconel 718/ Inconel 718 API available sizes and specifications
Grade	Inconel 718/ Inconel 718 API
Nickel plate	Thickness: 0.3mm - 150.0mm Width: 1000mm - 3000mm
Nickel strip/ nickel foil	Thickness: 0.02mm - 16.0mm Width: 5mm - 3000mm
Nickel coil	Thickness: 0.3mm - 16.0mm Width: 1000mm - 3000mm
Nickel pipe	Outside diameter: 6mm - 1219mm Thickness: 0.5mm - 100mm
Nickel Capillary Pipe	Outside diameter: 0.5mm - 6.0mm Thickness: 0.05mm - 2.0mm
Nickel bar	Diameter: Ф4mm - Ф600mm
Nickel wire rod	Diameter：Ф0.01mm - Ф6mm