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1.0729 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.0729

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DIN 1.0729

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This page is mainly introduced the 1.0729 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.0729,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Distinctive feature & main attribute: an unalloyed free cutting mild steel, added with lead and sulphur, showing an excellent machinability.
Use & application range: this quality is specially designed for the production of parts of delicate use such as automotive, watch and micro-motor industries, mechanical constructions, jig construction or settings.

Free Cutting High Carbon Steel

Steel Garde:1.0729
Type:Structural Steel
Country:Germany
Standard:DIN
Application:this quality is specially designed for the production of parts of delicate use such as automotive, watch and micro-motor industries, mechanical constructions, jig construction or settings.

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.65	0.75
Si	0.10	0.40
Mn	0.50	0.90
P		0.07
S	0.15	0.25
Fe		Bal

Mechanical Properties

Tensile strength	632～859	σb/MPa
Yield Strength	865	σ 0.2 ≥/MPa
Elongation	60	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	551～270	-
HRC	30	-

Physical Properties

Thermal expansion	51-45	e-6/K
Thermal conductivity	73-50	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	5779-5252	째C
Density	1531-6827	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)
1.0729 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