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ACX 903 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ACX 903

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EN ACX 903

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This page is mainly introduced the ACX 903 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ACX 903,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Long Product Stainless Steel Grades

Steel Garde:ACX 903
Type:Stainless Steels
Country:European
Standard:EN
Metallographic Structure:Austenite
Application:Long Product Stainless Steel Grades

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.03
Si		0.75
Mn	4.00	5.00
P		0.030
S		0.010
Cr	19.50	21.50
Ni	1.00	3.00
Mo	0.10	0.60
N	0.05	0.17

Mechanical Properties

Tensile strength	557～548	σb/MPa
Yield Strength	340	σ 0.2 ≥/MPa
Elongation	70	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	829～585	-
HRC	30	-

Physical Properties

Thermal expansion	34-35	e-6/K
Thermal conductivity	31-22	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	5150-5128	째C
Density	4765-3369	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)
ACX 903 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