UNS T20824

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#UNS # # #T20824

Description

UNS T20824 Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: UNS T20824

Category	Type	Steel Grade
Steel Grades	Tool Steel	UNS T20824
		UNS T20814
		ASTM H19
		UNS T20819
		ASTM H21
		UNS T20821
		ASTM H22
		UNS T20822
		ASTM H23
		UNS T20823
		ASTM H24

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

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni
0.42-0.53	0.15-0.4	0.15-0.4	0.03	0.03	2.5-3.5
Mo	Al	W	Nb	Ti	V	Ce
		14-16			0.4-0.6
N	Co	Pb	B	Other

Mechanical Properties of steel grade UNS 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)
682 (≥)	473 (≥)	34	32	32	Solution and Aging, Annealing, Ausaging, Q+T,etc	222

Physical Properties of steel grade UNS 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
24	-	-			0.32	-
497	715	-	23.3	431		-
321	-	21	13.2			144	433

Heat Treatment of steel grade UNS T20824

Heat treated : 1441°C - 1931°C

Technological Curves of steel grade UNS T20824

No Curve

Cross Reference Table (Equivalent Grade) of UNS T20824

Grade	Standard	Country	Application
UNS G10300	UNS	USA	General use carbon steel bar
UNS G10050	UNS	USA	General use carbon steel bar
UNS G10060	UNS	USA	General use carbon steel bar
UNS G10080	UNS	USA	General use carbon steel bar
UNS G10110	UNS	USA	General use carbon steel bar
ASTM 1012	ASTM	USA	General use carbon steel bar
UNS G10120	UNS	USA	General use carbon steel bar
UNS G10130	UNS	USA	General use carbon steel bar
UNS G10150	UNS	USA	General use carbon steel bar
UNS G10160	UNS	USA	General use carbon steel bar
UNS G10170	UNS	USA	General use carbon steel bar
UNS G10180	UNS	USA	General use carbon steel bar
UNS G10190	UNS	USA	General use carbon steel bar
UNS G10200	UNS	USA	General use carbon steel bar
UNS G10210	UNS	USA	General use carbon steel bar
UNS T72301	UNS	USA	Carbon tool steel
W2-A	ASTM	USA	Carbon tool steel
UNS T72302	UNS	USA	Carbon tool steel
UNS S42800	UNS	USA	Martensitic special steel
UNS S43100	UNS	USA	Martensitic special steel

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