Copper and aluminum flat bars, rectangular wire PMT, PMM, ShMT, ShMM
Copper and aluminum flat bars, rectangular wire PMT, PMM, ShMT, ShMM for electrical purposes
GOST 434 — 78
| Type | Side "A", mm | Side "B", mm |
| PMT, PMM | 0,8 — 12,5 | 2,0 — 35,0 |
| ShMT, ShMM | 4,0 — 30,0 | 16,0 — 120,0 |
Mechanical properties of wire and soft tires flat bar are as specified in the table.:
The hardness of tires ShMT must be at least 637 MPa (65 kgs / mm2) according to Brinell
| Size "A", mm | Relative elongation, %, not less | Temporary tear resistance, MPa (kgs / mm2), not less | |
| For PMM | For ShMM | For PMT | |
| To 2,50 incl. | 35 | — | 310 (31,6) |
| From 2,50 to 7,00 « | 35 | 37 | 290 (29,6) |
| » 7,00 » 10,00 « | 35 | 40 | 270 (27,6) |
| From » 10,00 | 35 | 40 | 270 (27,6) |