Sitemap | E-mail:sales@steelgs.com

20a chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 20a

Location » Home » Grades > Special Alloy > 20a

Contact

+86-13880247006

E-mail: sales@longhaisteel.com

ISO 20a

Profile

This page is mainly introduced the 20a chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 20a,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
ISO standard thermal deformation of stainless steel

Steel Garde:20a
Type:Special Alloy
Country:ISO
Standard:ISO
Application:ISO standard thermal deformation of stainless steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
ISO 20a	ISO	ISO
ML20Al	GBT	China
SWRCH20A	CNS	China
STKM20A	CNS	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	644～381	σb/MPa
Yield Strength	093	σ 0.2 ≥/MPa
Elongation	00	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	386～156	-
HRC	30	-

Physical Properties

Thermal expansion	41-78	e-6/K
Thermal conductivity	71-24	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	3369-6094	째C
Density	9365-2593	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)
20a 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