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440A chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 440A

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CNS 440A

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This page is mainly introduced the 440A chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 440A,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless steel bars

Steel Garde:440A
Type:Stainless Steels
Country:China
Standard:CNS
Standard Number:

ITEM Standard Number Descriptions

1 G3067 Stainless steel bars
Metallographic Structure:Martensite
Application:Stainless steel bars

ITEM	Standard Number	Descriptions
1	G3067	Stainless steel bars

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
AISI440A	AISI	USA
ASTM440A	ASTM	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.60	0.75
Si		1.00
Mn		1.00
P		0.040
S		0.030
Ni		0.60
Cr	16.00	18.00
Mo		0.75

Mechanical Properties

Tensile strength	811～248	σb/MPa
Yield Strength	372	σ 0.2 ≥/MPa
Elongation	13	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	695～892	-
HRC	30	-

Physical Properties

Thermal expansion	47-49	e-6/K
Thermal conductivity	19-59	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	4437-2404	째C
Density	5132-3685	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)
440A 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