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SB-247 2618

Description

USA AMS SB-247, SB-247 2618 Specialsteel Specification for Aluminum and Aluminum-Alloy Die Forgings, Hand Forgings, and Rolled Ring Forgings and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: SB-247 2618
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel SB-247 2618 Precipitation-Hardening AMS USA Specification for Aluminum and Aluminum-Alloy Die Forgings, Hand Forgings, and Rolled Ring Forgings

Chemical composition(mass fraction)(wt.%) of the SB-247 2618

C Si Mn P S Ni Cr Al Cu Ti Fe N Mo
≤0.06 ≤0.75 ≤0.75 ≤ ≥ ≤ ≥ ≤0.50 25.00 -27.00 ≤ ≥ ≤0.20 ≤ ≥ ≤ ≥ ≤0.04 0.75 -1.50

Mechanical Properties of steel grade SB-247 2618

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
298 (≥) 354 (≥) 43 21 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical Properties of steel grade SB-247 2618

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
43 - -     0.33 -  
979 168 - 23.3 243   -  
246 - 24 23.2   121 222

Heat Treatment of steel grade SB-247 2618

Heat treated : 1963°C - 1637°C

Technological Curves of steel grade SB-247 2618

Cross Reference Table (Equivalent Grade) of SB-247 2618

Relevant standard of SB-247 2618

SB-247 Specification for Aluminum and Aluminum-Alloy Die Forgings, Hand Forgings, and Rolled Ring Forgings SB-247.pdf

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