T20822

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#T20822

Description

USA UNS T20822 Tool Die Steels Hot-Work Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Die Steels: T20822

Category	Class	Grade	Standard	Country	Application
Steel Grades	Tool Die Steels	T20822	UNS	USA	Hot-Work Tool Steel

Chemical composition(mass fraction)(wt.%) of the T20822

C	Si	Mn	P	S	Cr	Mo	V	W	Ni＋Cu
0.30 -0.40	0.15 -0.40	0.15 -0.40	≤0.030	≤0.030	1.75 -3.75	≤ ≥	0.25 -0.50	10.00 -11.75	≤0.75

Mechanical Properties of steel grade T20822

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)
199 (≥)	366 (≥)	12	42	21	Solution and Aging, Annealing, Ausaging, Q+T,etc	111

Physical Properties of steel grade T20822

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
42	-	-			0.13	-
837	496	-	22.3	213		-
777	-	13	14.2			331	134

Heat Treatment of steel grade T20822

Heat treated : 1873°C - 1773°C

Technological Curves of steel grade T20822

No Curve

Cross Reference Table (Equivalent Grade) of T20822

Grade	Standard	Country	Application
UNS T20822
H23
H23
T20822

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