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K125L chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of K125L

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GB K125L

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This page is mainly introduced the K125L chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of K125L,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Directional Solidification Superalloy K125L

Steel Garde:K125L
Type:Superalloys
Country:China
Standard:GB
Application:Directional Solidification Superalloy

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
DZ4125L	GB	China
DZ125L	GB	China

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.06	0.14
Cr	8.20	9.80
Co	9.20	10.80
W	6.20	10.80
Ni		Bal
Mo	1.50	2.50
Al	4.30	5.30
Ti	2.00	2.80
Fe		0.20
Ta	3.30	4.00
B	0.005	0.015
Zr		0.05
Si		0.15
Mn		0.15
P		0.001
S		0.010
Pb		0.0005
Sb		0.001
Sn		0.001
Bi		0.00005
Ag		0.0005

Mechanical Properties

Tensile strength	888～830	σb/MPa
Yield Strength	869	σ 0.2 ≥/MPa
Elongation	23	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	371～333	-
HRC	30	-

Physical Properties

Thermal expansion	26-48	e-6/K
Thermal conductivity	26-01	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2299-3602	째C
Density	4906-6056	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)
K125L Superalloys	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