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DIN 120W4 Details

Alloyed W steel

DIN 120W4 Standard Download

120W4 Datasheet
DIN 120W4

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120W4 Application:Alloyed W steel
Category Type Grade Designations
Grades Tool Die Steels 120W4 Germany - DIN ,
Chemical composition(mass fraction)(wt.%)
Elements Min.（≥） Max.（≤） Similar Remarks
C 1.15 1.25
Si 0.15 0.30
Mn 0.20 0.35
P - 0.035
S - 0.035
Cr 0.15 0.25
Mo - -
V - -
W 0.90 1.10
Mechanical properties of grade 120W4
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)
686 (≥) 372 (≥) 11 24 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 332
Physical properties of grade 120W4
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
633 (≥) 197 (≥) 41 32 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 231
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
659 395 458
120W4 Range of products
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
120W4 DIN Germany
Alloyed W steel