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DIN 1.2884 Details

DIN 1.2884 Standard Download

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1.2884 Application:High alloyed CrCoW steel

Category Type Grade Designations
Grades Tool Die Steels 1.2884 Germany - DIN ,

Chemical composition(wt.%) of 1.2884 grade:

Elements Min.（≥） Max.（≤） Similar Remarks
C 2.00 2.25
Si 0.20 0.40
Mn 0.20 0.40
P - 0.035
S - 0.035
Cr 11.50 12.50
Mo 0.30 0.50
V - -
Co 0.80 1.10
W 0.60 0.80
High alloyed CrCoW steel

Mechanical properties of grade 1.2884

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)
135 (≥) 853 (≥) 23 24 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 341

Physical properties of grade 1.2884

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
413 (≥) 956 (≥) 32 31 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 311
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
659 153 587

1.2884 - 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
1.2884 DIN Germany
High alloyed CrCoW steel

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