T20824

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#T20824

Description

USA UNS T20824 Tool Die Steels Hot-Work Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Die Steels: T20824

Category	Class	Grade	Standard	Country	Application
Steel Grades	Tool Die Steels	T20824	UNS	USA	Hot-Work Tool Steel

Chemical composition(mass fraction)(wt.%) of the T20824

C	Si	Mn	P	S	Cr	Mo	V	W	Ni＋Cu
0.42 -0.53	0.15 -0.40	0.15 -0.40	≤0.030	≤0.030	2.50 -3.50	≤ ≥	0.40 -0.60	14.00 -16.00	≤0.75

Mechanical Properties of steel grade T20824

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
479 (≥)	998 (≥)	34	14	42	Solution and Aging, Annealing, Ausaging, Q+T,etc	311

Physical Properties of steel grade T20824

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
33	-	-			0.21	-
916	546	-	21.3	244		-
448	-	32	33.2			331	141

Heat Treatment of steel grade T20824

Heat treated : 1477°C - 1372°C

Technological Curves of steel grade T20824

No Curve

Cross Reference Table (Equivalent Grade) of T20824

Grade	Standard	Country	Application
UNS T20824
T20824

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