T20811

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#T20811

Description

USA UNS T20811 Tool Die Steels Hot-Work Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Die Steels: T20811

Category	Class	Grade	Standard	Country	Application
Steel Grades	Tool Die Steels	T20811	UNS	USA	Hot-Work Tool Steel

Chemical composition(mass fraction)(wt.%) of the T20811

C	Si	Mn	P	S	Cr	Mo	V	W	Ni＋Cu
0.33 -0.43	0.80 -1.20	0.20 -0.50	≤0.030	≤0.030	4.75 -5.50	1.10 -1.60	0.30 -0.60	≤ ≥	≤0.75

Mechanical Properties of steel grade T20811

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)
633 (≥)	795 (≥)	41	34	43	Solution and Aging, Annealing, Ausaging, Q+T,etc	234

Physical Properties of steel grade T20811

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
23	-	-			0.41	-
695	438	-	43.3	431		-
953	-	31	34.2			141	134

Heat Treatment of steel grade T20811

Heat treated : 1489°C - 1989°C

Technological Curves of steel grade T20811

No Curve

Cross Reference Table (Equivalent Grade) of T20811

Grade	Standard	Country	Application
T20811
UNS T20811
T20811

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