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W108 Commerial chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of W108 Commerial

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UNS W108 Commerial

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This page is mainly introduced the W108 Commerial chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of W108 Commerial,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
W108

Steel Garde:W108 Commerial
Type:Tool Die Steels
Country:USA
Standard:UNS

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:Water quenching tool steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
W108 Standard	SAE	USA
W108 Extra	SAE	USA
W108 Special	SAE	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.70	0.85
Si		0.35
Mn		0.35
Cr		0.20

Mechanical Properties

Tensile strength	768～990	σb/MPa
Yield Strength	107	σ 0.2 ≥/MPa
Elongation	20	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	477～362	-
HRC	30	-

Physical Properties

Thermal expansion	44-64	e-6/K
Thermal conductivity	70-77	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2575-4238	째C
Density	8420-0124	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)
W108 Commerial 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