|
Class
|
QT400-18
|
QT450-10
|
QT500-7
|
QT600-3
|
|
60-40-18
|
65-45-12
|
-
|
80-55-06
|
|
|
EN-GJS-400-18
|
EN-GJS-450-10
|
EN-GJS-500-7
|
EN-GJS-600-3
|
|
|
GGG40
|
-
|
GGG50
|
GGG60
|
|
|
FCD400
|
FCD450
|
FCD500
|
FCD600
|
|
Chemical composition (%)
|
Si
|
2.2~2.8
|
2.2~3.2
|
2.2~3.2
|
2.2~3.2
|
|
Mn
|
0.1~0.4
|
0.1~0.4
|
0.2~0.5
|
0.3~0.6
|
|
|
P
|
≤ 0.05
|
≤ 0.05
|
≤ 0.05
|
≤ 0.05
|
|
|
S
|
≤ 0.02
|
≤ 0.02
|
≤ 0.02
|
≤ 0.02
|
|
|
C
|
3.2~4.0
|
3.2~3.9
|
3.2~3.9
|
3.0~3.8
|
|
|
Mechanical proprerties
|
Yield strength
|
≥260
|
≥310
|
≥320
|
≥380
|
|
Tensile strength, MPa
|
30≤D≤150; ≥380; 150≤D≤450; ≥350
|
30≤D≤150; ≥420; 150≤D≤450; ≥400
|
30≤D≤150; ≥470; 150≤D≤450; ≥420
|
30≤D≤150; ≥560; 150≤D≤450; ≥520
|
|
|
Elongation, %
|
30≤D≤120; ≥18; 125≤D≤600; ≥15
|
30≤D≤120; ≥12; 125≤D≤600; ≥8
|
30≤D≤120; ≥7; 125≤D≤600; ≥5
|
30≤D≤120; ≥3; 125≤D≤600; ≥2
|
|
|
Hardness, HB
|
130~170
|
140~200
|
170~230
|
180~250
|
|
|
Shape / size
|
Round
|
Φ18mm~Φ600mm
|
|||
|
Square
|
□25mm×25mm~□900mm×900mm
|
||||
|
Rectangle
|
30mm×40mm~360mm×470mm
|
||||
|
Semi-round
|
R30mm~R180mm
|
||||
|
Class
|
EN-GJL-200
|
EN-GJL-250
|
EN-GJL-300
|
|
GG20
|
GG25
|
GG30
|
|
|
FC200
|
FC250
|
FC300
|
|
Chemical composition(%)
|
Si
|
2.2~2.8
|
2.2~2.6
|
2.2~2.6
|
|
Mn
|
0.3~0.5
|
0.5~0.8
|
0.6~1.2
|
|
|
P
|
≤0.15
|
≤0.15
|
≤0.15
|
|
|
S
|
≤0.12
|
≤0.12
|
≤0.1
|
|
|
C
|
2.8~3.8
|
2.8~3.8
|
2.8~3.8
|
|
Mechanical properties
|
|
|
|
|
|
Tensile strength
|
≥180
|
≥220
|
≥260
|
|
|
Elongation, %
|
|
|
|
|
|
Hardness, HB
|
150~180
|
170~220
|
190~240
|
|
|
Shape / size
|
Round
|
Φ18mm~Φ600mm
|
||
|
Square
|
□25mm×25mm~□900mm×900mm
|
|||
|
Rectangle
|
30mm×40mm~360mm×470mm
|
|||
|
Semi-round
|
R30mm~R180mm
|
|||
