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DIN 1.2703 Details

DIN 1.2703 Standard Download

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1.2703 Application:Alloyed NiCr steel

Category Type Grade Designations
Grades Tool Die Steels 1.2703 Germany - DIN ,

Chemical composition(wt.%) of 1.2703 grade:

Elements Min.（≥） Max.（≤） Similar Remarks
C 0.70 0.78
Si 0.10 0.25
Mn 0.35 0.45
P - 0.035
S - 0.035
Cr 0.20 0.30
Mo - -
V - -
Ni 0.50 0.60
Alloyed NiCr steel

Mechanical properties of grade 1.2703

Proof strength
Rp0.2 (MPa)		 Tensile strength
Rm (MPa)		 Impact energy
KV (J)		 Elongation at fracture
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
743 (≥) 117 (≥) 11 31 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical properties of grade 1.2703

Property Density
kg/dm3		 Temperature T
°C/F		 Specific heat
J / kgK		 Thermal conductivity
W/mK		 Electric resistance
µΩ·cm		 Modulus of elasticity
kN/mm2		 Expansion rate
743 (≥) 139 (≥) 42 42 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 312
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
295 634 788

1.2703 - Form of Supply

Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED

Cross Reference Table(Equivalent Grade)

Grade Standard Country Application
1.2703 DIN Germany
Alloyed NiCr steel

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