Tin
Tin is one of most popular metals that has been known since 4th millennium BC. This malleable plastic alloy in its pure form and in form of tin alloys is used in wide variety of industrial fields.
General characteristics
Tin has excellent physical and technological properties, among which:
- Melting point 231.91 °С;
- Boiling point 2620 °C;
- Casting point 260—300 °С;
- Relative elongation — 40%;
- Ease;
- Softness;
- Plasticity;
- Has strong gusset film that protects against corrosion;
- Reacts with non-metals, etc.
It is also important to know that tin has ability to crack at sub-zero temperatures and turn into powder. Scientists called this phenomenon «tin plague”.
Application area
Most of tin is used in metallurgy to create various alloys, but in addition to this, metal is also used for:
- Solders for electronics;
- House pipelines;
- Containers for food;
- Paints;
- Manufacture of optical glass;
- Batteries and other human consumption products.
In sale of metal products, tin is purchased in form of ingots, bars, ribbons and even powder.
Steel grades
Tin has number of alloy grades, among which:
Alloy grades |
Chemical composition, % |
Standard | ||||||||||||||||||
GOST |
Wnr |
Uns |
Fe |
Sn |
Bi |
Cu |
Zn |
Sb |
Al |
Pb |
As |
S |
Ga |
Au |
In |
Co |
Ni |
Ag |
Impurities | |
O1 |
Sn99.9 |
L13008 |
<0.009 |
<99.9 |
<0.015 |
0.03−0.01 |
<0.002 |
<0.015 |
<0.002 |
<0.04 |
<0.01 |
<0.008 |
GOST 860−75 | |||||||
OVCh-000 |
Sn99.999 |
L13002 |
<0.0001 |
> 99.999 |
<0.000005 |
<0.00001 |
<0.00003 |
<0.00005 |
<0.0003 |
<0.00001 |
<0.0001 |
<0.00005 |
<0.00001 |
<0.00001 |
<0.00001 |
<0.00001 |
<0.000005 |
<0.001 |
GOST 860−75 | |
They are mostly used among manufacturers of above products.
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Mass units
| Kilogram (kg) | Metric ton (mt) | Pound (lb) |
|---|---|---|
| 1 000 | 1 | 2 200.62 |
| 1 | 0.001 | 2.20 |
| 0.4536 | 1 |