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| Brand Name : | TANKII Alloy |
| Model Number : | Kovar / 29НК / 4J29 |
| Certification : | ISO 9001 and RoHS |
| Price : | USD 30~50/ kg |
| Payment Terms : | T/T, Western Union, L/C, Paypal |
| Supply Ability : | 30000KG per month |
| Delivery Time : | 10~15day |
1.Description
Glass sealing alloy is one kind of alloy whose gas expansion
coefficient is very close to the sealing glass expansion
coefficient.
Chemical Content(%)
Mn | Ni | Co | C | Si | P | S | Fe |
0.25 | 29.1 | 17.3 | 0.015 | 0.12 | 0.006 | 0.005 | Bal |
Mechanical Properties
Density | 8.17 g/cm3 |
Thermal Expansion Coefficient (20~300ºC) | 5.0*10-6 /ºC |
Thermal Expansion Coefficient (20~450ºC) | 5.2*10-6 /ºC |
Curie Point | 430ºC |
Volume Resistivity (20ºC) | 46μΩ.cm |
Thermal Conductivity | 20.3W/m. ºC |
Temper rolled | As annealed | |
| Yield Strength | 695 Mpa | 315 Mpa |
| Tensile Strength | 780 Mpa | 520 Mpa |
| Elongation | 5% | 24% |
| Hardness | 230 HV | 48 HV |

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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