History of brass. Physical and mechanical properties.
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History
Brass was smelted since antiquity. Until the end of the XVIII century it was obtained by melting copper and zinc ore, which was mixed with charcoal. Only in the XIX century, this method was replaced by a direct method of fusing copper and zinc. Depending on the content of zinc, the color of brass varies from light yellow to reddish. Supplier Avlob offers to buy brass at a bargain price. The price is the best in this segment of rental.
Physical properties of brass
Brass, which contains up to 10% Zn, is called a tombak, and for zinc content from 10 to 20% — a half-tamp. Such alloys are distinguished by their corrosion resistance and high plasticity. The limit of short-term strength: 220−260 MPa, and the relative elongation at break 45−55% They are used in the production of condenser and radiator pipes. Brass alloy, which contains about 30% of zinc, has the ability to deep drawing, it is called patron brass. Brass with the addition of up to 1.5% lead (also called marine brass) has increased resistance to corrosion even in sea water,
Strength and ductility (temperature 20 ° C)
| Alloy | sv | d5 |
| LS59−1 | 600−700 | 4−6 |
| L63 | 680−750 | 2−4 |
| L96 | 220−260 | 45−55 |
- sв — Short-term strength limit
- d5 — Elongation at break.
Delivery, price
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