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W109 Standard chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of W109 Standard

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SAE W109 Standard

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This page is mainly introduced the W109 Standard chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of W109 Standard,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:W109 Standard
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
W109 Commerial	SAE	USA
W109 Extra	SAE	USA
W109 Special	SAE	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.85	0.95
Si		0.35
Mn		0.35
Cr		0.15
V

Mechanical Properties

Tensile strength	902～845	σb/MPa
Yield Strength	542	σ 0.2 ≥/MPa
Elongation	54	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	868～791	-
HRC	30	-

Physical Properties

Thermal expansion	57-84	e-6/K
Thermal conductivity	51-68	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0753-7100	째C
Density	5307-9822	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)
W109 Standard 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