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S4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of S4

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ASTM S4

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This page is mainly introduced the S4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of S4,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
S4

Steel Garde:S4
Type:Special Alloy
Country:USA
Standard:ASTM
Application:Alloy tool steel

Relevant products:

403(UNS S40300) ...

422(UNS S42200, ...

Stainless Steel ...

422 Stainless Steel Round Bar

403Cb Stainless ...

410 Stainless Steel Flat bars

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
SS440	JIS	Japan
SKS4	JIS	Japan
SKS41	JIS	Japan
SKS43	JIS	Japan
SKS44	JIS	Japan
TS4	AFNOR	France
TS4	AFNOR	France
S40	AFNOR	France
S40	AFNOR	France
STS4	KS	Korea
STS4	KS	Korea
STS4	KS	Korea
STS4	KS	Korea
STS41	KS	Korea
STS41	KS	Korea
STS43	KS	Sweden
STS43	KS	Sweden
STS44	KS	Korea
STS44	KS	Korea
STS4	KS	Korea
STS4	KS	Korea
STS43	KS	Korea
STS43	KS	Korea
UNS S42800	UNS	USA
UNS S43100	UNS	USA
UNS S44002	UNS	USA
UNS S44003	UNS	USA
UNS S44004	UNS	USA
UNS S44020	UNS	USA
UNS S44023	UNS	USA
UNS S44025	UNS	USA
UNS S45000	UNS	USA
UNS S45000	UNS	USA
UNS S45500	UNS	USA
UNS S45500	UNS	USA
UNS S45503	UNS	USA
UNS S45503	UNS	USA
S41008		USA
S41008		USA
S41040	UNS	USA
S41040	UNS	USA
S41050	UNS	USA
S41050	UNS	USA
S41500	UNS	USA
S41500	UNS	USA
S41610	UNS	USA
S41610	UNS	USA
S41800	UNS	USA
S41800	UNS	USA
S42010	UNS	USA

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	349～611	σb/MPa
Yield Strength	065	σ 0.2 ≥/MPa
Elongation	89	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	844～823	-
HRC	30	-

Physical Properties

Thermal expansion	36-61	e-6/K
Thermal conductivity	70-89	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1313-2118	째C
Density	5169-1164	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)
S4 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