UNS 2618

Grades | Stainless Steels | 2618

UNS 2618 ( Precipitation-Hardening )

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2618 Application:Aluminum Alloy, Die and Hand Forgings, Rolled Rings, and Forging Stock 2.3Cu - 1.6Mg - 1.1Fe - 1.0Ni - 0.18Si - 0.07Ti (2618-T61) Solution and Precipitation Heat Treated

Chemical composition(mass fraction)(wt.%) of the 2618
Elements Min.（≥） Max.（≤） Similar Remarks
C - 0.06
Si - 0.75
Mn - 0.75
P - -
S - -
Ni - 0.50
Cr 25.00 27.00
Al - -
Cu - 0.20
Ti - -
Fe - -
N - 0.04
Mo 0.75 1.50

Mechanical properties of grade 2618

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition HBW
946 (≥) 281 (≥) 32 32 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 334

Physical properties of grade 2618

Property Density
kg/dm3		 Temperature T
°C/F		 Specific heat
J / kgK		 Thermal conductivity
W/mK		 Electric resistance
µΩ·cm
889 (≥) 487 (≥) 31 31 24 Solution and Aging, Annealing, Ausaging, Q+T,etc
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2		 - - -
554 754 236 - - -

2618 Range of products
Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED