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Tungsten Carbide Seals

Tungsten carbide is commonly used in mechanical seals, which is extremely tough and stiff and has very good abrasion resistance. Two common metal binders, cobalt and nickel, are used. Typically 6% binder materials are used in mechanical seals, although a wide range is available. Nickel-bonded tungsten carbides are more prevalent in the wastewater pump market due to their improved corrosion resistance compared with cobalt bound materials

Seal face components made from solid silicon carbide are particularly well suited to abrasive and corrosive applications and can handle a wide range of temperature extremes. These components are excellent thermal conductors and can be specified where high strength and stiffness are required. Reaction bonded Silicone Carbide is also satisfactory for sealing faces, while it has excellent wear characteristics.

The below are some product specifications with the drawings and pictures we have ever supply our customs.
TC Seal__Nickel-based (WC94%+Ni6%)

Unit: inch

OD
1.875
2.300
2.560
3.960
3.860
3.200
ID
1.175
1.690
1.930
3.180
2.980
2.400
THK
0.187
0.187
0.187
0.200
0.200
0.200

Brief Introduction of Tungsten Carbide New Grade __ TN85

Description

TN85 is a new grade of tungsten carbide, which is excellent for the various applications in wear-resistance, high-temperature oxidation resistance and anti-corrosive. It also acts quite well in self-lubricating & low friction coefficient, thus, it is widely used in the sealing industry.

Properties

Grade

TN85

TN85C

TN85D

Density (g/cm3)

5.5~5.8

6.2~6.5

7.5~7.8

Hardness (HRA)

91.5~92.5

90~91

87.5~88.5

T.R.S. (N/mm2)

1150+/-200

1450+/-200

1650+/-200

Thermal Expansion Coefficient(K*10-6/oC)

6.7~7.6

7.1~7.9

7.5~8.2

Porosity

A04 B04 C04

A04 B04 C04

A04 B04 C04

 Report for Test of Anti-corrosive 

Grade

Medium

Corrosion Rate(g/m2 h)

Yearly Corrosion Depth (mm/a)

WC-Ni Alloy

50%H2SO4

0.0252

0.015

TN85C

0.0136

0.021

WC-Ni Alloy

30%HCl

1.7651

1.04

TN85C

0.3237

0.49

WC-Ni Alloy

50%H3PO4

0.015

0.0089

TN85C

0.0069

0.01

WC-Ni Alloy

40%NaOH+60%NaCl

0

0

TN85C

0

0

addtime:2008-8-15 17:31:10   print
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