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Alloy 718
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Alloy 718 Forging Steels, Alloy 718 Ex-stock Suppliers & Manufacturers, Alloy 718 Forge Bar Plate Machined, Alloy 718 Alloy exporter, from Melting, ESR & VAR technique, Hot blooming, Hot forging, Hot rolling, Heat treatment, Straightening, 100% Ultrasonic flaw detection test,
MATERIAL DATA SHEET - Alloy 718

TECHNICAL SPECIFICATION: AMS 5663
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS -  BV
MATERIAL CATEGORY: Precipitation hardened and cold
worked nickel alloy
CHEMICAL COMPOSITION (WEIGHT %)
C (%):    ≤ 0.08
Si (%):   ≤ 0.35
Mn (%):  ≤ 0.35
P (%) ≤: 0.015
S (%) ≤: 0.015
Cr (%):   17.0 ~ 21.0
Co (%):   ≤ 1.00
Mo (%):  2.80 ~ 3.30
Nb/Ta (%): 4.75 ~ 5.50
Ti (%):    0.65 ~ 1.15
Al (%):    0.20 ~ 0.80
Zr (%):    -
B (%):     ≤ 0.006
Fe (%):   Remainder
Cu (%):   ≤ 0.30
Ni (%):    50.0 ~ 55.0
Ta (%):   -
Nb (%):   -
W (%):    -
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Condition: Solution + Stabilize + Precipitation hardening
Heat treatment pratice
Solution treatment 924 ~ 1010 Deg. hold 1/2h min., cool at rate equivalent to air cool or faster
Precipitation hardening treatment, 718+/-14 Deg, hold at temperature for 8h, furnace cool to 621+/-14 Deg., hold until total precipitation heat treatment time has reached 18h, air cool
Tensile strength,σb/≥ MPa: 1275
Yield strength, σ0.2/≥ MPa: 1034
Elongation, δ ≥(%): 12.0
Reduction of area, ф ≥ (%): 15.0
Hardness | HBW: 331 min.
STRESS RUPTURE REQUIREMENT
Test temperature: 649 Deg.
Stress /MPa: 690
Time to rupture: 23h
Elongtation, (%): 5.0

FORMS AND SHAPES & MELTING PROCESS
Melting - VIM + ESR & VAR
Round bar (Diameter): 5.5mm to 550mm
Square bar / Flat bar: 10mm to 700mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.

TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to EMAIL (sales@ccsteels.com) our resident team of qualified production engineers.

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