GB Cr12

Grades | Tool Die Steels | Cr12

GB Cr12

PDF | Word | Print

Cr12 Application:Often used in the manufacture of small bear impact load and wear resistance of high cold cold punching die, punch, shear knife, cold roll, drill sets and wire drawing die, as well as the gauge, model, the CAM pin, eccentric wheel, etc

Chemical composition(mass fraction)(wt.%) of the Cr12
Elements Min.（≥） Max.（≤） Similar Remarks
C 2.00 2.30
Si - 0.40
Mn - 0.40
Cr 11.50 13.00

Mechanical properties of grade Cr12

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition HBW
671 (≥) 756 (≥) 12 23 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 344

Physical properties of grade Cr12

Property Density
kg/dm3		 Temperature T
°C/F		 Specific heat
J / kgK		 Thermal conductivity
W/mK		 Electric resistance
µΩ·cm
821 (≥) 473 (≥) 33 32 22 Solution and Aging, Annealing, Ausaging, Q+T,etc
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2		 - - -
926 641 445 - - -

Cr12 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