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1.6655 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.6655

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DIN 1.6655

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This page is mainly introduced the 1.6655 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.6655,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Professional 1.6655(32NiCrMo12-5,AISI A723,30NiCrMo12,30NCD12) Forged Forging Steel Rings Seamless Rolled Rings.

Steel Garde:1.6655
Type:Tool Die Steels
Country:Germany
Standard:DIN
Application:Heat treatable low alloyed NiCrMo steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
32NiCrMo12-5	DIN	Germany
A723	AISI	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）	Similar	Remarks
C		0.32
Si		0.28
Mn		0.38
Cr		1.35
Mo		0.35
Ni		2.90

Mechanical Properties

Tensile strength	343～314	σb/MPa
Yield Strength	629	σ 0.2 ≥/MPa
Elongation	85	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	741～190	-
HRC	30	-

Physical Properties

Thermal expansion	78-03	e-6/K
Thermal conductivity	55-18	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0090-0817	째C
Density	9202-9464	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)
1.6655 Tool Die Steels	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