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DIN 1.2738 Details

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1.2738 Application:Alloyed CrMnNiMo steel

Category Type Grade Designations
Grades Tool Die Steels 1.2738 Germany - DIN , DIN EN ISO 4957 (1999) - Tool steels (ISO 4957:1999)

Chemical composition(wt.%) of 1.2738 grade: DIN EN ISO 4957 (1999)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.35 0.45
Si 0.20 0.40
Mn 1.30 1.60
P - 0.035
S - 0.035
Cr 1.80 2.10
Mo 0.15 0.25
V - -
Ni 0.90 1.20
Alloyed CrMnNiMo steel

Mechanical properties of grade 1.2738 DIN EN ISO 4957 (1999)

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)
126 (≥) 232 (≥) 21 23 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 314

Physical properties of grade 1.2738 DIN EN ISO 4957 (1999)

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
812 (≥) 131 (≥) 13 44 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 444
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
564 416 533

1.2738 - 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
1.2738 DIN Germany
Alloyed CrMnNiMo steel

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