LY12
OtherLY12 / 十二号硬铝,
Applications
Bar, Plate, Tube, Forging
Available Forms
Low-alloy engineering steel with enhanced hardenability and strength from alloying elements. Nickel (≈0.1%) increases toughness and impact strength at low temperature. Applied to gears, shafts, bolts, connecting rods, pressure parts and heavy forgings in automotive, energy and machinery sectors.
Uses
Austenitize at 760–820 °C and quench (oil/water) then temper at 150–400 °C for high hardness; spheroidize anneal (680–720 °C) improves machinability of the as-rolled bar.
Heat Treatment
Weldable with standard procedures; preheat may be needed for thick sections or higher-carbon/ alloy grades. Protect from decarburization during heating (controlled atmosphere or protective coating).
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