Low alloy bronze 204A (Bronze BrHNb0.2-0.1)
No foreign analogues
Used for the manufacture of electrical products
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Bronze | Pressureless bronze plated |
Chemical composition
| Standard | Cr, % | Cu, % | Nb, % |
|---|---|---|---|
| GOST 18175-78 | 0.2 | 99.7 | 0.1 |
Information on suppliers
Physical characteristics
| Temperature, °C | $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ | $$\varkappa$$, $$\frac{W}{m\cdot K}$$ | $$\rho$$, $$\frac{kg}{m^3}$$ | Cp, Дж/кг·К |
|---|---|---|---|---|
| 20 | 16.5 | 0.11 | 8750 | 410 |
Standards
| Standard | Description |
|---|---|
| GOST 18175-78 |
Description of chemical elements
| Element | Units of measurement | Description |
|---|---|---|
| Cr | % | Chrome |
| Cu | % | Copper |
| Nb | % | Niobium |
Description of physical characteristics
| Parameter | Units of measurement | Description |
|---|---|---|
| Cp | Дж/кг·К | Specific heat of material |
| $$\alpha\cdot 10^{6}$$ | $$K^{-1}$$ | Coefficient of thermal (linear) expansion (range 20°C–T) |
| $$\varkappa$$ | $$\frac{W}{m\cdot K}$$ | Coefficient of thermal conductivity (the heat capacity of the material) |
| $$\rho$$ | $$\frac{kg}{m^3}$$ | The density of the material |