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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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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
ML30Mn	GBT	China
ML30CrMo	GBT	China
ML30	GBT	China
ML30CrMnSiA	GBT	China
ML30CrMoA	GBT	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	248～466	σb/MPa
Yield Strength	992	σ 0.2 ≥/MPa
Elongation	64	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	085～861	-
HRC	30	-

Physical Properties

Thermal expansion	45-16	e-6/K
Thermal conductivity	14-98	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	3003-6833	째C
Density	5717-4775	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