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ML20MnA chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ML20MnA

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GBT ML20MnA

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This page is mainly introduced the ML20MnA chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ML20MnA,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
ML20MnA

Steel Garde:ML20MnA
Type:Special Alloy
Country:China
Standard:GBT
Application:China structural steel and alloy steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	433～329	σb/MPa
Yield Strength	989	σ 0.2 ≥/MPa
Elongation	99	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	201～579	-
HRC	30	-

Physical Properties

Thermal expansion	53-17	e-6/K
Thermal conductivity	21-62	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	8327-6193	째C
Density	5898-5451	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)
ML20MnA 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