SiC Mechanical Seal
Silicon carbide (SiC) is also known as carborundum, which is made of quartz sand, petroleum coke (or coal coke), wood chips (which need to be added when producing green silicon carbide) and so on. Silicon carbide also has a rare mineral in nature, mulberry. In contemporary C, N, B and other non-oxide high technology refractory raw materials, silicon carbide is one of the most widely used and economical materials, which can be called gold steel sand or refractory sand. At present, China's industrial production of silicon carbide is divided into black silicon carbide and green silicon carbide, both of which are hexagonal crystals with a proportion of 3.20 ~ 3.25 and microhardness of 2840 ~ 3320kg/mm2.
Silicon carbide products are classified into many kinds according to different application environment. It is generally used more mechanically. For example, silicon carbide is ideal material for SiC mechanical sealbecause of its good chemical corrosion resistance, high strength, high hardness, good wear resistance, small friction coefficient and high temperature resistance. SiC Sealrings can be divided into static ring, moving ring, flat ring and so on. SiC silicon cab be made into various carbide products, such as silicon carbide, silicon carbide, silicon carbide ring and so on, according to the special requirements of customers. It can also be used in combination with graphite material, and its friction coefficient is smaller than alumina ceramic and hard alloy, so it can be used in high PV value, especially in the condition of strong acid and strong alkali.
The following tables introduce R-SiC and S-SiC.
|
properties |
R-SiC |
S-SiC |
|
Porosity (%) |
≤0.3 |
≤0.2 |
|
Density (g/cm3) |
||
|
Hardness |
110~125 (HS) |
2800 (kg/mm2) |
|
Elastic Modulus (Gpa) |
≥400 |
≥410 |
|
SiC Content (%) |
≥85% |
≥99% |
|
Si Content (%) |
≤15% |
|
|
Bend Strength (Mpa) |
≥350 |
450 |
|
Compressive Strength (kg/mm2) |
≥2200 |
3900 |
|
Coefficient of heat expansion (1/℃) |
||
|
Heat resistance (in the atmosphere) (℃) |
1300 |
1600 |
|
Test Environment |
Corrosive Weight Loss (mg/cm2yr) |
||
|
Concentration Reagent (wt%) |
Temperature (℃) |
R-SIC |
S-SIC |
|
98%H2S04 |
100 |
50 |
|
|
50% NaOH |
100 |
1000 |
|
|
53% HF |
100 |
7 |
|
|
85% H3P04 |
100 |
8 |
|
|
70% HNO3 |
100 |
||
|
45% KOH |
100 |
1000 |
|
|
25% HCL |
100 |
||
|
10% HF plus 57% HNO3 |
25 |
1000 |
|
Sealconis a china pump supplier,we provide silicon carbide mechanical seal,silicon carbide seal rings,silicon carbide pump sealsand silicon carbide seal.
Send product request
Other supplier products
 |
PTFE WEDGE MECHANICAL SEALS | China-Sealcon is committed to providing the best service and products in fluid industry. And Sealcon's PTFE Wedge Mechanical Seals can replace the ... |
 |
Flygt Mechanical Seals FBU-28 | Replacement for: FBU-28 upper parts for flygt 3101pump Features: Original Sweden design Big stock Wilo pumps ITT pumps Flygt Pump Model of... |
 |
SiC Mechanical Seal | Silicon carbide products are classified into many kinds according to different application environment. It is generally used more mechanically. For... |
 |
Flygt Mechanical Seals FBU-28 | China Sealconsupplies a wide range of seal products for pump. Both standard and custom-designed sealing products are available. Top-quality mechani... |
 |
Single Cartridge Seals | Cartridge mechanical seal is assembled by the rotary ring, stationary ring, spring, secondary seal( o rings, PTFE), gland and other mechanical seal... |
Same products
 |
High Vacuum Pump 2be 203 Series Water Ring Pump | Seller: Greentech International (Zhangqiu) Co., Ltd | Application scope and characteristics: Greentech International (Zhangqiu) Co., Ltd is the profes... |
|
|
Zbk03 Series Roots Vacuum Pump/Roots Pump | Seller: Greentech International (Zhangqiu) Co., Ltd | ZBK series roots vacuum pump is a kind of coarse vacuum acquisition of equipment, it is widely us... |
 |
"Brand Assurance Globe valve GR2-0-KB-G5/30X48 for power generation | Seller: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD | "Brand Assurance Globe valve GR2-0-KB-G5/30X48 for power generation YOYIK is a large number of st... |
 |
Wear Resistance Electric stop valve NKJ961Y-16C for thermal power plant | Seller: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD | "Wear Resistance Electric stop valve NKJ961Y-16C for thermal power plant YOYIK professional produ... |
 |
Brand Assurance Stop valve J61Y-600CL for power generation | Seller: DONGFANG YOYIK (DEYANG) ENGNIEERING CO; LTD | "Brand Assurance Stop valve J61Y-600CL for power generation YOYIK is a large number of steam turb... |
