Density, specific heat, melting point of solder
Are you interested in the density, specific heat of solid solder? Supplier Avlob offers to buy hard solder at a bargain price. The supplier guarantees the timely delivery of products to any address in Europe or abroad. Regular customers receive a discount discount. The price is the best in this segment.
Technical characteristics of copper solders
Hard solders containing copper are used in tool production — for attaching carbide inserts to the steel base of the cutting edge, or for cutting off knives of cold-landing machines. The melting point of the solder should roughly correspond to the hardening temperature of the steel product. Instrument heating is usually performed in salt baths. If not, ferroalloy soldering is used. The main brands of refractory solders are self-fluxing solders GFK or 6MM, the supply of which is in the form of plates, chips or powder.
Composition and properties of solid refractory solders
| Brand of solder | Si,% | Mn,% | Ni,% | Zn,% | Fe,% | Cu,% | B,% | Mo,% | Cr,% | Melting point, 0 С | Shear strength, MPa |
| GFK | 3… 4 | 5… 6 | 4… 5 | 6… 8 | 5… 7 | Ost. | - | - | - | 935 | 400… 460 |
| 6MM | 6… 8 | - | Ost. | - | 3… 5 | 5… 15 | 0.2… 0.5 | 10… 15 | 8… 10 | 1150… 1200 | 500… 550 |
Technical characteristics of silver solders
The production is regulated by GOST 8190. The most commonly used are the brands PSr 72 and PSr 70, which are used for brazing copper, brass and silver. The main advantage of these alloys is the preservation of the high electrical conductivity of the soldered joint;
| Mark PSr | Using |
| 50 | Soldering of steel, copper and its alloys; |
| 65 | Soldering the steel parts of the tool, mainly the band saw attachments. |
| 45, 25 | The connection of parts operating in a humid environment, as well as under impact load. |
The solder of the grade PSr 45 melts at a lower temperature (which reduces the risk of overheating of the blanks to be joined), and also gives the soldered seam higher mechanical performance. Supplier Avlob offers to buy any solder at a bargain price. The price is the best in this segment of rental.
Composition and properties of silver solders
| Brand of solder PSr | Density, kg / m³ | Crystallization temperature, ° С | Specific electrical resistance, μΩ • m | Limit of mechanical tensile strength, MPa | |
| Start | end | ||||
| 72 | 9900 | 779 | 779 | 2.1 | - |
| 71 | 9800 | 795 | 750 | 4.3 | - |
| 70 | 9800 | 770 | 4.1 | ||
| МО66−27−5 | 9900 | 765 | 14.0 | ||
| P66 | 9450 | 722 | 8.6 | ||
| 62 | 9600 | 723 | 25.5 | ||
| 50 | 9300 | 850 | 779 | 2.5 | - |
| 50KD | 9260 | 640 | 7.8 | ||
| KdM50−34−16 | 9400 | 615 | 6.6 | ||
| 45 | 9100 | 660 | 725 | 10.0 | 300 |
| МЦКд45−15−16−24 | 9400 | 615 | 6.8 | ||
| 40 | 9250 | 610 | 7.0 | ||
| 37.5 | 8900 | 810 | 37.2 | ||
| 25 | 8700 | 775 | 745 | 7.7 | 280 |
| 25f | 8500 | 710 | 650 | 18.6 | - |
| 15 | 8300 | 810 | 635 | 20.7 | - |
| 12M | 8300 | 830 | 7.4 | ||
| P10 | 8400 | 850 | 7.1 | ||
Delivery, price
Are you interested in the density, specific heat of solid solder? Buy solder at an affordable price from the supplier Avlob today. The price is formed on the basis of European production standards. Supplier Avlob offers to buy hard solder at the optimal price in bulk or at retail. We invite you to partner cooperation