Special Iron Sulfide For Resin Grinding Wheels Application of Ferro Sulfur for the manufacturing of cast iron: Golden Resin Grinding Wheel,Used in the Grinding Industry,Abrasive Iron Sulfide LUANCHUAN COUNTY HENGKAI METALLURGICAL MATERIALS SALES CO.,LTD , https://www.pyritechina.com
Item
DIN912 Hex Socket Head Cap Screw Gr.12.9 Black
Grade
4.8, 5.8, 6.8, 8.8, 10.9, 12.9
Material
Carbon Steel, Alloy Steel, Stainless Steel, Copper
Surface Treatment
Black, Zinc Plated (ZP), Yellow Zinc Plated (YZP), Hot DIP Galvanizing (HDG), Dacromet, Nickel Plated, Brass Plated
Size
M3
M4
M5
M6
M8
M10
M12
M14
M16
M18
M20
M22
M24
M27
M30
M33
M36
M42
M48
M56
Pitch
0.5
0.7
0.8
1.0
1.25
1.5
1.75
2.0
2.0
2.5
2.5
2.5
3.0
3.0
3.5
3.5
4.0
4.5
5.0
6.5
t(min)
1.3
2.0
2.5
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
12.0
13.5
15.5
18.0
19.0
24.0
28.0
34.0
s
2.5
3.0
4.0
5.0
6.0
8.0
10.0
12.0
14.0
14.0
17.0
17.0
19.0
19.0
22.0
24.0
27.0
32.0
36.0
41.0
K(max)
3.0
4.0
5.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
20.0
22.0
24.0
27.0
30.0
33.0
36.0
42.0
48.0
56.0
D(max)
5.68
7.22
8.72
10.22
13.27
16.27
18.27
21.33
24.33
27.33
30.33
33.39
36.39
40.39
45.39
50.39
54.46
63.46
72.46
84.54
L(max)
18
20
22
24
28
32
36
40
44
48
52
56
60
66
72
78
84
96
108
124
• Carton size: Standard carton (27*25*14.5 cm) or customized based on customer needs.
• Packing: Plastic bags, boxes, cartons, pallets, or as per customer requirements.
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Here is a rewritten and improved version of the provided content in English, ensuring it is more natural, engaging, and exceeds 500 characters:
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Model NO.: DIN912 CL. 8.8 ZP M5X70
Application: Machinery, Chemical Industry, Environmental, Construction
Finish: Zinc Plated, Black, Yellow Zinc Plated, Hot Dipped Galvanized
Process: Cold Forging, Hot Forging, Machining
Trademark: STRONG BOLT
Transport Package: Small Box, Bulk, Custom Packaging
Specification: M3 to M60
Origin: Ningbo, China
HS Code: 7318150000
Model NO.: DIN912 CL. 8.8 ZP M5X70
Application: Machinery, Chemical Industry, Environmental, Construction
Finish: Zinc Plated, Black, Yellow Zinc Plated, Hot Dipped Galvanized
Process: Cold Forging, Hot Forging, Machining
Trademark: STRONG BOLT
Transport Package: Small Box, Bulk, Custom Packaging
Specification: M3 to M60
Origin: Ningbo, China
HS Code: 7318150000
Low sulfur content in gray cast iron molten iron is harmful: poor inoculation effect, poor graphite morphology, and poor cutting performance
When melted in a foundry, the residual sulfur content decreases, mainly due to the use of scrap steel and low sulfur.
The content contained has been determined, and if the sulfur content is below 0.04%, melting will not easily react with the inoculant.
Therefore, it is necessary to use sulfur addition agent to increase the sulfur content, in order to maintain the sulfur content within the range of 0.05% to 0.12%.
Within this range, sulfur shortens the length of graphite, blunts its ends, bends its morphology, and improves its mechanical properties. When the sulfur content is below 0.05%, sulfur addition treatment must be carried out.
According to metallographic analysis, sulfur in molten iron exists in a special form, so it is necessary to use a specialized sulfur addition agent when adding sulfur. Do not use sulfur or other sulfur containing minerals as this can greatly damage the internal structure of the casting!
For ductile iron, a low sulfur content (below 0.008%) in the raw molten iron is also unfavorable. The normal range of 0.010% -0.014% is better. However, for electric furnace melting, it is necessary to use sulfur oxygen inoculants within this range to slightly increase sulfur and improve the activity of molten iron
The use method of sulfur addition agent: During the production process of the electric furnace, a small amount of iron is added to the furnace, and then sulfur addition agent with the particle size of 8-25mm is added to the furnace according to the sulfur demand. Then add iron to press the sulfur addition agent for melting, with an absorption rate exceeding 99%
Specification of sulfur addition agent: -150 mesh -325 mesh 10-30 mesh 10-50 mesh 5-15mm 200 mesh 325 mesh 400 mesh 95% pass