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St400S chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of St400S

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ONORM St400S

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This page is mainly introduced the St400S chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of St400S,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
St400S

Steel Garde:St400S
Type:Special Alloy
Country:Austria
Standard:ONORM
Application:Austrian structural steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	731～416	σb/MPa
Yield Strength	646	σ 0.2 ≥/MPa
Elongation	93	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	078～232	-
HRC	30	-

Physical Properties

Thermal expansion	69-53	e-6/K
Thermal conductivity	38-64	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	5514-2422	째C
Density	5520-5565	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)
St400S 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