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S20 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of S20

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AFNOR S20

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This page is mainly introduced the S20 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of S20,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.

Steel Garde:S20
Type:Special Alloy
Country:France
Standard:AFNOR
Application:Carbide for cutting tools

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
S20	AFNOR	France
CS20	SS	Sweden
CS20	SS	Sweden
309S20		UK
347S20	KS	UK
434S20		UK
436S20		UK
Z17CNS20-12	AFNOR	France
Z25CNWS20-09	AFNOR	France
Z80CNS20-02	AFNOR	France
STS201	KS	Korea
STS 202	KS	Korea
10S20	UNE	Spain
35S20	UNE	Spain
46S20	UNE	Spain
S205	GBT	China
S20C	CNS	China
S20CK	CNS	China
EN PS20QH	EN	Euronorm
EN 10S20	EN	Euronorm
EN 35S20	EN	Euronorm
EN 46S20	EN	Euronorm

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	341～517	σb/MPa
Yield Strength	908	σ 0.2 ≥/MPa
Elongation	93	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	187～756	-
HRC	30	-

Physical Properties

Thermal expansion	16-29	e-6/K
Thermal conductivity	91-75	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	6977-9157	째C
Density	2609-5981	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)
S20 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