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25Mn chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 25Mn

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This page is mainly introduced the 25Mn chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 25Mn,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
25Mn

Steel Garde:25Mn
Type:Special Alloy
Country:China
Standard:GBT
Application:China structural steel and alloy steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
25Mn5	AFNOR	France
25MnCrSiil	STAS/SR	Romania
25MnCrSil IS	STAS/SR	Romania
25MnCrSi11X	STAS/SR	Romania
25MnCrSi11XS	STAS/SR	Romania
25MnG	GBT	China
25MnRiVRE	GBT	China
ML25Mn	GBT	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	680～642	σb/MPa
Yield Strength	751	σ 0.2 ≥/MPa
Elongation	16	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	468～737	-
HRC	30	-

Physical Properties

Thermal expansion	12-76	e-6/K
Thermal conductivity	64-46	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2784-7167	째C
Density	1900-5069	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)
25Mn 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