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ASTM440A chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ASTM440A

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ASTM ASTM440A

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This page is mainly introduced the ASTM440A chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ASTM440A,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
ASTM440A

Steel Garde:ASTM440A
Type:Stainless Steels
Country:USA
Standard:ASTM
Application:ASTM440A

Relevant products:

1.4109 / 440A /...

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
A 276 S44002	SAE	USA
A 314 S44002	SAE	USA
A 473 S44002	SAE	USA
A 580 S44002	SAE	USA
S44002	AISI	USA
SUS 440A	JIS	Japan
SUS 440A	JIS	Japan
SUS 440A	JIS	Japan
STS440A	KS	Korea
440A	CNS	China
AISI440A	AISI	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.60	0.75
Si		1.00
Mn		1.00
P		0.04
S		0.03
Cr	16.0	18.0
Mo		0.75

Mechanical Properties

Tensile strength	743～225	σb/MPa
Yield Strength	673	σ 0.2 ≥/MPa
Elongation	36	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	077～390	-
HRC	30	-

Physical Properties

Thermal expansion	97-59	e-6/K
Thermal conductivity	21-00	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	7067-1309	째C
Density	3632-3893	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)
ASTM440A 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