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C75S chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of C75S

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EN C75S

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This page is mainly introduced the C75S chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of C75S,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Cold rolled narrow steel strip for heat treatment - Technical delivery conditions - Part 4: Spring steels and other applications

Steel Garde:C75S
Type:Structural Steel
Standard:EN

Standard Number:

ITEM	Standard Number	Descriptions
1	EN 10132-4 (2000)	Cold rolled narrow steel strip for heat treatment - Technical delivery conditions - Part 4: Spring steels and other applications

Application:Cold rolled narrow steel strip for heat treatment - Technical delivery conditions - Part 4: Spring steels and other applications

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.70	0.80
Si	0.15	0.35
Mn	0.60	0.90
P		0.025
S		0.025
Cr		0.40
Ni		0.40
Mo
Cu		0.10

Mechanical Properties

Tensile strength	325～681	σb/MPa
Yield Strength	753	σ 0.2 ≥/MPa
Elongation	14	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	343～495	-
HRC	30	-

Physical Properties

Thermal expansion	08-91	e-6/K
Thermal conductivity	64-39	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	3555-8392	째C
Density	7709-1154	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)
C75S Structural Steel	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