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EX 45 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of EX 45

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SAE EX 45

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This page is mainly introduced the EX 45 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of EX 45,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Former SAE standard and former SAE Ex-steels

Steel Garde:EX 45
Type:Stainless Steels
Country:USA
Standard:SAE
Standard Number:

ITEM Standard Number Descriptions

1 SAE J 1249 (2000) Former SAE standard and former SAE Ex-steels
Metallographic Structure:Precipitation-Hardening
Application:Former SAE standard and former SAE Ex-steels

ITEM	Standard Number	Descriptions
1	SAE J 1249 (2000)	Former SAE standard and former SAE Ex-steels

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）	Similar	Remarks
C		0.25
Si
Mn
Cr		25.50
Ni		10.50
Mo
Co		55.00
W		7.00
Al
Cu
Ti
Fe		2.00
B		0.01

Mechanical Properties

Tensile strength	301～340	σb/MPa
Yield Strength	250	σ 0.2 ≥/MPa
Elongation	32	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	806～161	-
HRC	30	-

Physical Properties

Thermal expansion	41-55	e-6/K
Thermal conductivity	81-80	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	8221-4610	째C
Density	9710-7577	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)
EX 45 Stainless 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