Sitemap | E-mail:sales@steelgs.com

ML20B chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ML20B

Location » Home » Grades > Special Alloy > ML20B

Contact

+86-13880247006

E-mail: sales@longhaisteel.com

GBT ML20B

Profile

This page is mainly introduced the ML20B chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ML20B,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
ML20B

Steel Garde:ML20B
Type:Special Alloy
Country:China
Standard:GBT
Application:China structural steel and alloy steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	616～644	σb/MPa
Yield Strength	947	σ 0.2 ≥/MPa
Elongation	69	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	968～391	-
HRC	30	-

Physical Properties

Thermal expansion	45-29	e-6/K
Thermal conductivity	64-42	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1940-2146	째C
Density	3329-5682	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)
ML20B 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