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ML30 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ML30

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GBT ML30

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This page is mainly introduced the ML30 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ML30,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
ML30

Steel Garde:ML30
Type:Special Alloy
Country:China
Standard:GBT
Application:China structural steel and alloy steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
ML30	GBT	China
ML30Mn	GBT	China
ML30CrMo	GBT	China
ML30CrMnSiA	GBT	China
ML30CrMoA	GBT	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	320～171	σb/MPa
Yield Strength	004	σ 0.2 ≥/MPa
Elongation	23	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	368～081	-
HRC	30	-

Physical Properties

Thermal expansion	43-92	e-6/K
Thermal conductivity	80-29	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1288-4053	째C
Density	9632-0010	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)
ML30 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