Fire Resistant Steel Cord Conveyor Belt for General Use
China [CN] |
Grade
|
Tensile Strength/Mpa ≥
|
Breaking Elongation/% ≥
|
Abrasion Loss/mm3 ≤
|
|
H
|
20
|
400
|
200
|
|
D
|
18
|
400
|
120
|
|
L
|
15
|
350
|
200
|
|
Note:Grade H-used for highly-sharp working conditions.Grade D-used for highly-abrasive working conditions.Grade L-used for general working conditions.
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Belt type
|
630
|
800
|
1000
|
1250
|
1600
|
2000
|
2500
|
2800
|
3150
|
3500
|
4000
|
4500
|
5000
|
5400
|
|
Before- aging, ≥
|
60
|
70
|
80
|
95
|
105
|
105
|
130
|
135
|
140
|
145
|
150
|
165
|
175
|
180
|
|
After- aging, ≥
|
55
|
65
|
75
|
90
|
95
|
95
|
120
|
125
|
130
|
140
|
145
|
160
|
170
|
175
|
|
Belt type
|
ST630
|
ST800
|
ST1000
|
ST1250
|
ST1600
|
ST2000
|
ST2500
|
ST2800
|
ST3150
|
ST3500
|
ST4000
|
ST4500
|
ST5000
|
ST5400
|
|
Min. tensile strength (N/mm)
|
630
|
800
|
1000
|
1250
|
1600
|
2000
|
2500
|
2800
|
3150
|
3500
|
4000
|
4500
|
5000
|
5400
|
|
Max. diameter of steel cord (mm)
|
3.0
|
3.5
|
4.0
|
4.5
|
5.0
|
6.0
|
7.2
|
7.6
|
8.1
|
8.6
|
8.9
|
9.7
|
10.9
|
11.3
|
|
Min. breaking force of steel cord (kN)
|
6.93
|
8.8
|
13.2
|
16.5
|
21.12
|
26.4
|
41.25
|
45.9
|
51.98
|
57.70
|
66.00
|
79.20
|
93.50
|
101.0
|
|
Steel cord pitch (mm) (±1.5)
|
10
|
10
|
12
|
12
|
12
|
12
|
15
|
15
|
15
|
15
|
15
|
16
|
17
|
17
|
|
Top cover thickness (mm)
|
5
|
5
|
6
|
6
|
6
|
8
|
8
|
8
|
8
|
8
|
8
|
8
|
8.5
|
9
|
|
Bottom cover thickness (mm)
|
5
|
5
|
6
|
6
|
6
|
6
|
6
|
6
|
8
|
8
|
8
|
8
|
8.5
|
9
|
|
Belt width
|
Number of steel cord
|
|||||||||||||
|
800
|
75
|
75
|
63
|
63
|
63
|
63
|
50
|
50
|
50
|
50
|
|
|
|
|
|
1000
|
95
|
95
|
79
|
79
|
79
|
79
|
64
|
64
|
64
|
64
|
64
|
59
|
55
|
55
|
|
1200
|
113
|
113
|
94
|
94
|
94
|
94
|
76
|
76
|
76
|
77
|
77
|
71
|
66
|
66
|
|
1400
|
133
|
133
|
111
|
111
|
111
|
111
|
89
|
89
|
89
|
90
|
90
|
84
|
78
|
78
|
|
1600
|
151
|
151
|
126
|
126
|
126
|
126
|
101
|
101
|
101
|
104
|
104
|
96
|
90
|
90
|
|
1800
|
|
171
|
143
|
143
|
143
|
143
|
114
|
114
|
114
|
117
|
117
|
109
|
102
|
102
|
|
2000
|
|
|
159
|
159
|
159
|
159
|
128
|
128
|
128
|
130
|
130
|
121
|
113
|
113
|
|
2200
|
|
|
176
|
176
|
176
|
176
|
141
|
141
|
141
|
144
|
144
|
134
|
125
|
125
|
|
Item
|
Fire resistant grade
|
|
|
K2
|
K3
|
|
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Duration of flame
|
Total value of flame duration of 6 samples with covers, not more than 45s, any single value not more than 15s.
|
Average value of flame duration of 3 samples with covers, not more than 60s.
|
|
Static conductive properties
|
≤ 3×108Ω
|
|
|
Reappearance of flame
|
not allowed in any sample
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