13.10/2023
POLEMA presented at the“BIOTECHMED” its innovative medical products
11.07/2023
POLEMA at INNOPROM in Ekaterinburg
Brazing alloys
For capillary brazing, the company produces a wide range of powder brazing alloys that are used in electric engineering, electronics, the tool-making industry, aviation motor-building, the thermal power industry, mechanical engineering, and other fields.
The use of powder brazing alloys reduces the labor intensity of the technical process of brazing, and makes it possible to accurately dispense material, mechanize brazing operations, and introduce radically new structural and engineering solutions.
JSC POLEMA is open to developing partnerships in this field, and to creating and adapting industrial production of new brands and forms of highly effective brazing alloys.
POLEMA powder brazing-ready brazing alloys are classified by groups based on chemical composition and technological properties:
Brand | Brazing temp, °С | Weld strength, MPa | Field of application |
AP-CuMn32Ni8Si3 |
1000 | 300-350 |
Brazing with flux agents 200 or 201, 209 carbonic and alloyed structural steels and cast iron |
AP-CuMn25SiNiB |
900 | 250-300 | Brazing with flux agent 209 for steels, and flux agent FPSN-2 for cast iron |
AP-CuMn24Ni5 (VPr-2) |
1000-1040 | 280-360 | Brazing alloy with increased heat-resistance and resistance to corrosion. Brazing of heat exchange units made from heat- and corrosion-resistant steels and alloys |
AP-CuMn29Ni29Co5SiB (VPr-2) |
1000-1050 | 350 | Brazing of thin-walled structures and stainless steels (12Cr18Ni10Ti steel) and alloys. Increased corrosion resistance |
AP-Ni58B |
1080-1100 | 400-470 | Vacuum brazing of high-strength stainless steels and nickel alloys and thin-wall structures |
AP-NiMn18CrMoCu |
1120 | σcp 220 | Argon or vacuum brazing of stainless steels and heat-resistant alloys operating at high temperatures |
AP-NiMn34Co10 |
1160 | 450-520 | Argon or vacuum brazing of thin-walled structures made of stainless steels and heat-resistant alloys |
AP-FeMn32Ni12Cu12SiB |
1200 | 350-400 | Brazing of joints of pipes in steel gas mainlines |
P-Cr13Ni69Si7B |
1200 | 280-300 | Argon brazing of corrosion-resistant and heat-resistant steels. Joint strength at 800 °С is 200 МPа |
P-Cr10Ni64Mo15Si7B (6MA) |
1200 | 320-340 | Argon brazing of corrosion-resistant and heat-resistant steels. Unbrazing temperature is 1230 °С |
P-CuSn5P7 P-CuSn5P7-P |
700-720 | 180-200 | Brazing of copper and copper alloys with the brazing agent PV-209. Substitute for high-silver brazing alloys PSr25, PSr45. P-CuSn5P7-P is an extrudable modification of this brazing alloy |
P-NiMn18CrMoCu |
960-970 | σcp 400 | Brazing of titanium and titanium alloys. Temperature of extended operation is 400 °С |
P-Ti44Zr24Cu16Ni16 |
880-980 | σcp 400 | Brazing of titanium and titanium alloys. Temperature of extended operation is 400 °С |
P-Fe60NiCrB | 1185 | 400 | Brazing of a compound tool made from rapid machining steel in molten BaCl2 salt while tempering a cutting edge |
P-Cu53Zn21MnNi |
950-1000 | 260-300 | Brazing with brazing agents F-1, PV200 of hard alloys of the type VK with steel |
P-Cu76Sn9Zn9Ni (P102) |
940-960 | 260-300 | Brazing of brittle brands of hard alloys |
P-Cu63Zn (PAN-212) |
1015 | - | A mixture of a brazing alloy with a brazing agent. Brazing of tools made from hard alloys of the types VK, TK |
P-NiCr9FeSiB (VPr11-40N) |
1100-1120 | - | Self-fluxing structural brazing agent for brazing corrosion-resistant steels and alloys in motor-building, and vacuum or argon brazing of segments of turbine blades |