3 j21-serial open-style is Co - Cr - Ni - Mo is a high elastic alloy, the alloy with high hardness, strength, elastic limit and energy storage ratio, fatigue strength, small elastic hysteresis and aftereffect, nonmagnetic, good wear resistance, seismic resistance of stamping, excellent corrosion resistance, etc.
Cobalt base alloys can work at temperatures of 400 degrees Celsius or at low temperatures.
Close to the brand (40KHXM , Elgiloy , NAS604PH,K.R.N , phynox)
Chemical composition %
| C |
Mn |
Si |
P |
S |
Cr |
| 0.07~0.12 |
1.70~2.30 |
<0.6 |
<0.01 |
<0.01 |
17.0~21.0 |
| Co |
Ni |
Mo |
Ce |
Fe |
| 39.0~41.0 |
14.0~16.0 |
6.50~7.50 |
0.1~0.15 |
Bal |
application:The 3j21 alloy was an old material in the mid-1960s and has been produced and applied for many years.
It is mainly used for wear-resisting, anti-corrosion, anti-seismic, non-magnetic, and high intensity of air use elastic components, such as shaft, wire, spring, spring and diaphragm.
It is also used in the production of special bearings, small shafts, ball bearings, stamping dies and cutting tools.
| Density (g/cm3) |
8.3 |
| Resistivity (uΩ.m) |
0.9 |
| Magnetic susceptibility |
120~240 |
FAQ
1. What's the minimum quantity customer can order?
If we have your size in stock, we can provide any quantity you want.
If we do not have, for spool wire, we can produce 1 spool, about 2-3kg. For coil wire, 25kg.
2. How can you pay for small sample amount?
We have Western union account, wire transfer for sample amount also ok.
3. Customer do not have express account. How will us arrange the delivery for sample order?
Just need to provide your address information, we will check the express cost, you can arrange the express cost together with sample value.
4. What's our payment terms?
We can accept LC T/T payment terms, it also depending on delivery and total amount. Let's talk more in details after getting your detailed requirements.
5. Do you provide free samples?
If you want several meters and we have stock of your size, we can provide, customer need to bear the International express cost.
6. What's our working time?
We will give you reply through email/phone Online contact tool within 24 hours. No matter working day or holidays.
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