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T20822 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of T20822

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UNS T20822

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This page is mainly introduced the T20822 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of T20822,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Hot-Work Tool Steel

Steel Garde:T20822
Type:Tool Die Steels
Country:USA
Standard:UNS
Application:Hot-Work Tool Steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
T20822	UNS	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.30	0.40
Si	0.15	0.40
Mn	0.15	0.40
P		0.030
S		0.030
Cr	1.75	3.75
Mo
V	0.25	0.50
W	10.00	11.75
Ni＋Cu		0.75

Mechanical Properties

Tensile strength	574～613	σb/MPa
Yield Strength	374	σ 0.2 ≥/MPa
Elongation	29	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	039～851	-
HRC	30	-

Physical Properties

Thermal expansion	97-99	e-6/K
Thermal conductivity	79-01	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1778-9693	째C
Density	4436-9430	kg/m³
Resistivity	0.50-0.60	Ohm.mm²/m

Heat Treatment Regime

Annealing	Quenching	Tempering	Normalizing	Q & T
√	√	√	√	√

Size Availability

Steel Grade	Specification	Processing range(mm)
T20822 Tool Die Steels	Round Bar and Hollow Bar	Φ1 to Φ2000
	Square and Flat Steel	Φ10 to Φ100
	Plate and Sheet	0.08-800(Thickness)10-1500(Width)Length
	Tube or Pipe	OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
	Coil and Strip Steel	THK:0.1mm Width:1500mm
	Forged	Ring/Cylindrical/Disk