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ST30E chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ST30E

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JIS ST30E

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This page is mainly introduced the ST30E chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ST30E,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
ST30E
Hardness quartile HRA:91
Bending strength frequency/MPa:1800

Steel Garde:ST30E
Type:Special Alloy
Country:Japan
Standard:JIS
Application:Carbide for cutting tools

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
ST30E	JIS	Japan

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	820～570	σb/MPa
Yield Strength	652	σ 0.2 ≥/MPa
Elongation	47	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	681～983	-
HRC	30	-

Physical Properties

Thermal expansion	85-42	e-6/K
Thermal conductivity	34-77	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	5069-7278	째C
Density	6051-7661	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)
ST30E 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