The short answer Die casting's main environmental load is melting metal, not the casting cycle: primary aluminium carries roughly 16 kg CO2e per kilogram, and secondary aluminium needs up to 95 percent less energy than primary smelting. Over 95 percent of process scrap is remelted in house, but VOC release agents and magnesium cover gases are the pieces that need active control. Where the load...

The short answer Seven grades cover nearly all zinc die casting. Zamak 3 is the workhorse at 283 MPa, Zamak 5 adds copper for 331 MPa, Zamak 2 is the strongest Zamak at 359 MPa and Zamak 7 is the most ductile at 13 percent elongation. ZA-8, ZA-12 and ZA-27 raise aluminium content to 8, 12 and 27 percent for 372, 404 and 426 MPa. The seven grades at a glance Zinc die casting looks like a smalle...

The short answer Zinc alloys run in hot-chamber machines at 380 to 390 C, so they cycle in 5 to 20 seconds, fill walls down to 0.4 mm and hold tolerances around plus or minus 0.05 mm. Dies last 500,000 to a million shots. The trade is weight at 6.6 g/cm3 and a service ceiling near 100 C. Seven advantages, ranked by what they save Zinc is often overlooked because aluminium is the default choice...

The short answer Aluminum die casting wins on volume economics: 15 to 60 second cycles, H13 dies that last 100,000 to 500,000 shots, and near-net shapes that cut material waste by 60 to 80 percent against machining. Those three together make it the lowest total-cost route above about 5,000 parts a year, and the only one that also casts features instead of assembling them. Speed is the first be...

The short answer Aluminum die casting is dominated by four or five Al-Si alloys. A380 and its equivalents ADC12 and ADC10 cover general housings and brackets, A383 fills large thin walls, A360 handles corrosion and pressure tightness, A413 suits leak-critical manifolds and B390 is reserved for wear surfaces. Silicon controls fluidity; copper controls strength and corrosion. Die casting alloys ...

The short answer Aluminium alloys account for over 70 percent of die-cast parts because they combine a strength-to-weight ratio of 200 to 330 MPa at 2.7 g/cm3 with fast 20 to 90 second cycles, thermal conductivity of 92 to 170 W/m.K, as-cast tolerances of plus or minus 0.1 to 0.25 mm and complete recyclability. No competing casting metal delivers all five at the same cost. Six reasons aluminiu...

The short answer Four alloy families cover almost all die casting: aluminium, typically ADC12 or A380 and over 70 percent of all die-cast parts; zinc, usually Zamak 3 or Zamak 5 for thin-wall precision parts; magnesium, mainly AZ91D where weight matters; and copper alloys such as C36000 where conduction and wear resistance matter. Selection balances density, strength, casting temperature and cos...