Chromium Steel Casting

High chromium Steel Is a good performance and special attention to the anti-wear materials. It is much higher than the alloy steel wear resistance, and much higher than the general white cast iron toughness, strength, while it also has good resistance to high temperature and corrosion resistance, combined with convenient production, cost is moderate, and was Known as the contemporary one of the best anti-abrasive wear materials. For this material,it is widely used in manufacturing impact crusher wear parts,blow bars.
Chromium Steel Casting

Material Properties

Chromium Steel Grades and Chemical Composition

Grades
C
Mn
Si
Ni
Cr
Mo
Cu
P
S
KmTBCr12
2.0-3.3
≤2.0
≤1.5
≤2.5
11.0-14.0
≤3.0
≤1.2
≤0.10
≤0.06
KmTBCr15Mo
2.0-3.3
≤2.0
≤1.2
≤2.5
11.0-18.0
≤3.0
≤1.2
≤0.10
≤0.06
KmTBCr20Mo
2.0-3.3
≤2.0
≤1.2
≤2.5
18.0-23.0
≤3.0
≤1.2
≤0.10
≤0.06
KmTBCr26
2.0-3.3
≤2.0
≤1.2
≤2.5
23.0-30.0
≤3.0
≤1.2
≤0.10
≤0.06

Chromium Steel Hardness

Grades
As-cast
Softened Annealed State
HRC
HBW
HRC
HBW
HRC
HBW
KmTBCr12
≥46
≥450
≥56
≥600
≤41
≤400
KmTBCr15Mo
≥46
≥450
≥58
≥650
≤41
≤400
KmTBCr20Mo
≥46
≥450
≥58
≥650
≤41
≤400
KmTBCr26
≥46
≥450
≥56
≥600
≤41
≤400

America Climax Company Chromium Steel Casting Standard

Composition
Grades
12-1
15-3
15-2-1
20-2-1
Super C
High C
Mid C
Low C
C
3.0-3.5
3.6-4.3
3.2-3.6
2.8-3.2
2.4-2.8
2.8-3.5
2.6-2.9
Cr
11-14
14-16
14-16
14-16
14-16
14-16
18-21
Mo
0.5-1.0
2.5-3.0
2.5-3.0
2.5-3.0
2.4-2.8
1.9-2.2
1.4-2.0
Cu
<1.0
0.5-1.2
0.5-1.2
Mn
0.5-0.8
0.7-1.0
0.7-1.0
0.5-0.8
0.5-0.8
0.6-0.9
0.6-0.9
Si
0.5-0.8
0.3-0.8
0.53-0.8
0.3-0.8
0.3-0.8
0.4-0.8
0.4-0.9
S
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
<0.05
P
<0.10
<0.10
<0.10
<0.10
<0.10
<0.06
<0.06
mm
70
90
120
200①
>200
Hardness (HRC)
As-cast
60-67
51-56
50-54
44-48
50-55
50-54
Quenching
62-67
60-65
58-63
60-67
60-67
Annealing
40-44
36-42
35-40
40-44
38-43