Materials of our bushings--Cobalt Based Alloy
---Excellent wear and corrosion resistance even at high temperature up to 800℃
SYTOP cobalt base alloys is a range of cobalt-chromium-tungsten alloys with wear resistance, corrosion and high thermal resistance. It is widely used in oil & gas, machinery, wood cutting, automotive, paper and food processing industry etc.
Chemical compositions and properties (%)
|
Brand
|
C
|
Mn
|
Si
|
Cr
|
Ni
|
Mo
|
W
|
Co
|
Fe
|
P
|
S
|
Density
(g/cm3)
|
Hardness
(HRC)
|
|
TOPS 3
|
2.0-2.7
|
1.0
|
1.0
|
29-33
|
3.0
|
|
11-14
|
Bal.
|
3.0
|
≤0.03
|
≤0.03
|
8.55
|
51-55
|
|
TOPS 6
|
0.9-1.4
|
1.0
|
1.5
|
27-31
|
3.0
|
1.5
|
3.5-5.5
|
Bal.
|
3.0
|
≤0.03
|
≤0.03
|
8.35
|
38-44
|
|
TOPS 12
|
1.1-1.7
|
1.0
|
1.0
|
28-32
|
3.0
|
|
7.0-9.5
|
Bal.
|
3.0
|
≤0.03
|
≤0.03
|
8.40
|
44-49
|
|
TOPS 20
|
2.2-3.0
|
|
2.0
|
30-34
|
3.0
|
1.0
|
14-18
|
Bal.
|
3.0
|
≤0.05
|
≤0.05
|
8.65
|
53-59
|
|
TTG 25
|
2.2-2.8
|
1-3
|
|
27-32
|
7
|
Ta/Nb
|
14-19
|
Bal.
|
2-5
|
|
|
8.84
|
57-60
|
|
TTG 35
|
3.3-3.8
|
1-3
|
|
27-32
|
7
|
Ta/Nb
|
14-19
|
Bal.
|
2-5
|
|
|
8.80
|
60-63
|
|
T400
|
0.04
|
|
2.5-2.7
|
8-10
|
|
27-29
|
|
Bal.
|
|
|
|
|
55
|
|
T800
|
0.04
|
|
3.2-3.6
|
16-18
|
|
27-29
|
|
Bal.
|
|
|
|
|
58
|
Production process of our bushings
1. Powder metallurgy process
A. Better metallurgical structure, better strength
B. Various types of automatic pressing machines from 3 tons to 630 tons. The ordered profiles
can be very flexible.
2. Investment casting process
Different volume of furnaces, the order quantity can be very flexible.
3. Machining
CNC, lathing, drilling, milling, grinding, wire cutting, polishing
Q1: Are you a manufacturer or a trading company?
A1: We are the manufacturer located in the north of China with 15 years producing experience and 10 years exporting experience.
Q2: What's the material of your bushings/sleeves?
A2: It's the CoCrW alloy, which is usually called stellite alloy.
Q3: What's the stellite alloy?
A3: It is a range of cobalt-chromium alloys designed for wear resistance, heat resistance and corrosion resistance.
Q4: What's the lead time of bushings?
A4: 15-35 days depending on the order quantity.
Q5: What's the tolerance and surface finish we can control?
A5: As your demand.
Q6: How do we deliver the seats?
A6: We are the VIP customer of DHL express with good discounts.
Q7: MOQ?
A7: 5pcs
Q8: Why I choose your company?
A8: We are professional. We are reliable. We are easy communication.
Your feedback is our best honor, please do not hesitate to give us your valuable feedback.