Properties
Thanks to its higher content of Ni and Mo alloys, pearlite, basinite and martensite matrixes with excellent performance are produced. The graphite si spherical form, demonstraing good heat transfer property and high tensile strength. Through changing the struture into basinite of marensite matrix, chemical compostion of needly-like spherical iron of heat treatment, a dense reticular primary cementite with high wear-resistance is produced
Centrifugal static
pearlitic bainitic
Mechanical properties
|
Hardness of shell |
HSD45-80 |
|
Hardness of core |
HSD32-55 |
|
Tensile Strength of core |
¡Ý320MPa |
Chemical analysis
|
Grade |
Hardness (HSD) |
C |
Si |
Mn |
Ni |
Cr |
Mo |
Mg |
|
SG IV |
55-70 |
2.9/3.6 |
0.8/2.5 |
0.4/1.2 |
0.5/4.0 |
0.2/0.6 |
0.2/0.8 |
¡Ý0.04 |
|
SG V |
60-70 |
2.9/3.6 |
0.8/2.5 |
0.4/1.2 |
1.0/3.0 |
0.3/1.2 |
0.2/0.8 |
¡Ý0.04 |
|
SGP I |
45-55 |
2.9/3.6 |
1.4 /2.2 |
0.4/1.0 |
1.5/2.0 |
0.1/0.6 |
0.2/0.8 |
¡Ý0.04 |
|
SGP II |
55-65 |
2.9/3.6 |
1.2 /2.0 |
0.4/1.0 |
2.0/2.5 |
0.2/1.0 |
0.2/0.8 |
¡Ý0.04 |
|
SGP III |
62-72 |
2.9/3.6 |
1.0 /2.0 |
0.4/1.0 |
2.5/3.0 |
0.2/1.2 |
0.2/0.8 |
¡Ý0.04 |
|
SGA I |
55-78 |
2.9/3.6 |
1.2 /2.2 |
0.2/0.8 |
3.0/3.5 |
0.2/1.0 |
0.5/1.0 |
¡Ý0.04 |
|
SGP II |
60-80 |
2.9/3.6 |
1.0 /2.0 |
0.2/0.8 |
3.5/4.5 |
0.3/1.5 |
0.5/1.0 |
¡Ý0.04 |
Applications
Various types of continuous rough intermediate and finish mills for processing bars, sections and strips. Used as the secondary finishing and back rolls. Also suitable for use on stainless-steel strip hot mills. |
