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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.
Shock-Resisting Tool Steel

Steel Garde:S4
Type:Tool Die Steels
Country:USA
Standard:ASTM
Application:Shock-Resisting Tool Steel

Relevant products:

403(UNS S40300) ...

422(UNS S42200, ...

Stainless Steel ...

422 Stainless Steel Round Bar

403Cb Stainless ...

410 Stainless Steel Flat bars

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.50	0.65
Si	1.75	2.25
Mn	0.60	0.95
P		0.030
S		0.030
Cr	0.10	0.50
Mo
V	0.15	0.35
W
Ni＋Cu		0.75

Mechanical Properties

Tensile strength	444～097	σb/MPa
Yield Strength	755	σ 0.2 ≥/MPa
Elongation	76	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	160～482	-
HRC	30	-

Physical Properties

Thermal expansion	02-07	e-6/K
Thermal conductivity	02-51	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	5778-8945	째C
Density	4235-8195	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 Tool Die Steels	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