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C78D chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of C78D

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EN C78D

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This page is mainly introduced the C78D chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of C78D,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Non-alloy steel wire rod for conversion to wire - Part 2: Specific requirements for general-purpose wire rod

Steel Garde:C78D
Type:Structural Steel
Country:European
Standard:EN

Standard Number:

ITEM	Standard Number	Descriptions
1	EN 10016-2 (1994)	Non-alloy steel rod for drawing and/or cold rolling - Part 2: Specific requirements for general purposes rod
2	EN ISO 16120-2 (2011)	Non-alloy steel wire rod for conversion to wire - Part 2: Specific requirements for general-purpose wire rod

Application:Non-alloy steel wire rod for conversion to wire - Part 2: Specific requirements for general-purpose wire rod

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.75	0.80
Si	0.10	0.30
Mn	0.50	0.80
P		0.035
S		0.035
Cr		0.15
Ni		0.20
Cu		0.25

Mechanical Properties

Tensile strength	206～389	σb/MPa
Yield Strength	792	σ 0.2 ≥/MPa
Elongation	57	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	913～853	-
HRC	30	-

Physical Properties

Thermal expansion	49-73	e-6/K
Thermal conductivity	80-87	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	3222-9864	째C
Density	7616-7108	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)
C78D 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