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Quick Details

Place of Origin: China (Mainland)
Brand Name: Xinda
Model Number: Cr12
Thickness: 10~400mm
Width: 50~1200mm
Length: 2.5m to 5.5m
Technology: Forged
Application: Cold pressing mold extrusion with low pressing and burden,imprint mold
Delivery Condition: hot rolled/forged,annealed,Q+T
Surface Condition: Black Surface,Turned Surface
Tolerance for thickness: -0/+2.0mm(for milled surface);-0/+5.0mm(for black surface)
Tolerance for width: -0/+5.0mm(for milled surface);-0/+10.0mm(for black surface)

Specifications


Cr12 alloy steel flats
Chemical Composition(%)       
 C Si  Mn  P  S  Cr  ---- ------
  1.90-2.20  0.10-0.40  0.15-0.45  ≤0.030   ≤0.030  11.0-12.0    ---  ------
Specialty      

High charcoal and chromium tool steel, have high penetration, small distortion, high rigidity, good endurance.

Use              
1.Cold pressing mold extrusion with low pressing and burden, imprint mold, cold cutting scissor
Heat Treatment       
1.Quench: 950-980`C cold oil(need re-preheat~500`C-850`C)HRC≥60
2.Eliminate stress, stabilize framework tempering, (180-200`C)≥2 hours HRC60-62  
3.If it is necessary, it could be changed into 320-350`C≥2 hours backfire HRC≥60-62
4.Annealing: 780-800`C slow cooling
Melting Process 
1. EAF: Electric Furnace+LF+VD(Optional)
2. ESR:  Electric Furnace+LF+VD+Eleroslag Remelted(Optional)
UT Class
According to Standard of SEP 1921/84,100% Volume, Level C/c, D/d or E/e
Tolerance on Quantity
+/-10% Per Size