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A40 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A40

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STAS/SR A40

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This page is mainly introduced the A40 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A40,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
A40

Steel Garde:A40
Type:Special Alloy
Country:Romania
Standard:STAS/SR
Application:Structural steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
A40	JIS	Japan
HA400	AS	Australia
SMA400AW	CNS	China
SMA400BW	CNS	China
SMA400CW	CNS	China
SMA400AP	CNS	China
SMA400BP	CNS	China
SMA400CP	CNS	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	006～316	σb/MPa
Yield Strength	739	σ 0.2 ≥/MPa
Elongation	21	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	152～501	-
HRC	30	-

Physical Properties

Thermal expansion	58-00	e-6/K
Thermal conductivity	07-38	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9399-1901	째C
Density	6868-3360	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)
A40 Special Alloy	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