Tin Ore

Category

Grade

Tin (wB)/%≥

Impurities (wB)/%≤

S

P

Bi

Zn

Sb

Fe

First Category

Grade 1 
Grade 2 
Grade 3 
Grade 4 
Grade 5 
Grade 6 
Grade 7 
Grade 8

65
60
55
50
45
40
35
30

0.4
0.5
0.6
0.8
1.0
1.2
1.5
1.5

0.3
0.4
0.5
0.6
0.7
0.8
1.0
1.0

0.10
0.10
0.15
0.15
0.20
0.20
0.30
0.30

0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.0

0.2
0.3
0.4
0.4
0.5
0.6
0.7
0.8

5
7
9
12
15
16
17
18

Second Category

Grade 1 
Grade 2 
Grade 3 
Grade 4 
Grade 5 
Grade 6 
Grade 7
Grade 8

65
60
55
50
45
40
35
30

1.0
1.5
2.0
2.5
3.0
3.5
4.0
5.0

0.4
0.5
1.0
1.5
2.0
2.5
3.5
4.0

0.4
0.5
0.6
0.8
1.0
1.2
1.4
1.5

0.8
0.9
1.0
1.2
1.4
1.6
1.8
2.0

0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.2

-
7
9
12
15
16
17
18

Notice:
1. The first category is tin concentrates products, which can be put into furnace directly. 
The second category is tin concentrates products, which need further processing treatment before smelting. 
2. The analysis content of lead and tungsten in tin concentrates should be informed.
Please mark the shape and specification.