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ST25E chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ST25E

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ST25E

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This page is mainly introduced the ST25E chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ST25E,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
ST25E
Hardness quartile HRA:91
Bending strength frequency/MPa:1750

Steel Garde:ST25E
Type:Special Alloy
Application:Carbide for cutting tools

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
ST25E

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	527～320	σb/MPa
Yield Strength	861	σ 0.2 ≥/MPa
Elongation	74	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	137～692	-
HRC	30	-

Physical Properties

Thermal expansion	84-76	e-6/K
Thermal conductivity	78-52	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	8254-0507	째C
Density	2301-1628	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)
ST25E Special Alloy	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