| Dami: | |
|---|---|
KOMPOSISYON NG KEMIKAL
C: 0.13-0.18
Si: 0.15-0.35
Mn: 0.60-0.85
P: ≦0.03
S: ≦0.03
Ni: ≦0.25
Cr: 0.9-1.2
Mo: 0.15-0.30
Cu: ≦0.3
MECHANICAL PROPERTIES
Lakas ng makunat (kgf/mm²): ≥85
Pagpahaba (%): ≥16
Rate ng pagbabawas ng cross section (%): ≥40
Halaga ng epekto (J/cm2): ≥7
Katigasan (Hb): 235-321
PISIKAL NA KATANGIAN
Densidad: 7.85g/cm3
Nababanat na modulus: 200GPa
Thermal expansion coefficient: 12.2 x10(-6)/°C
Thermal conductivity: 46.6W//(m·K)
Conductivity: 49.8MS/mm
PAGGAgamot sa init
Pagsusupil: 850 ℃ Paglamig ng Furnace
Normalization: 850-900 ℃ Paglamig ng Hangin
Pagpapatigas: 850-900 ℃ 1st Oil Cooling, 800-850 ℃ 2rd Oil Cooling
Tempering: 150-200 ℃ Air Cooling
