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

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ISO ISO 20a

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This page is mainly introduced the ISO 20a chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ISO 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:ISO 20a
Type:Special Alloy
Country:ISO
Standard:ISO
Application:ISO standard thermal deformation of stainless steel

Cross Reference Table(Equivalent Materials):

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

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	220～277	σb/MPa
Yield Strength	153	σ 0.2 ≥/MPa
Elongation	61	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	589～178	-
HRC	30	-

Physical Properties

Thermal expansion	78-26	e-6/K
Thermal conductivity	40-49	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	7033-5272	째C
Density	2217-0523	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)
ISO 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