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W4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of W4

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SAE W4

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This page is mainly introduced the W4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of W4,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Tool and die steels

Steel Garde:W4
Type:Tool Die Steels
Country:USA
Standard:SAE

Standard Number:

ITEM	Standard Number	Descriptions
1	SAE J 437 (1970)	Selection and heat treatment of tool and die steels
2	SAE J 438 (1970)	Tool and die steels

Application:Tool and die steels

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
120W4	DIN	Germany
100MnCrW4	DIN	Germany

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.80	1.20
Si	0.10	0.40
Mn	0.10	0.40
Cr	0.15	0.30
V

Mechanical Properties

Tensile strength	472～012	σb/MPa
Yield Strength	428	σ 0.2 ≥/MPa
Elongation	07	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	396～729	-
HRC	30	-

Physical Properties

Thermal expansion	36-03	e-6/K
Thermal conductivity	04-12	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0149-9277	째C
Density	8795-7864	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)
W4 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