Foundry coke gaw magri htu ai bungli hta ahkyak ai arung arai langai rai nna, htu shapraw ai lam a matu ra kadawn ai nbung n-gun hte chemical shayawm ai makau grup yin hpe jaw ya ai. Metallurgical coke hte n bung ai sha, foundry coke gaw post-reaction n-gun grau law ai (CSR > 60%), n-gun n law ai (CRI < 30%), grau ngang grin ai wan hkru ai atsam ni hpe ra sharawng ai. Hpaji rawng ai foundry coke hta, 10–12% npu na nhprang wan, 0.7% npu na sulfur, 1.5% grup yin hta n-gun rawng ai arung arai ni lawm ai majaw, n-gun rawng ai n-gun rawng ai hte n-gun rawng ai n-gun rawng ai magri hpe hkam la lu ai.
Dai ni na aten na foundry coke galaw shapraw ai hta madung hku nna, n-gun ja ai-n-gun n-rawng ai nhprang wan (coking nhprang wan hte n-gun ja ai wan n-ga zawn re ai) hpe hkrak tup shadawn shadang hku jai lang nna, dry quenching (CDQ) lawm ai laksan coking ladat ni hku nna coke a hkrang hpe grau kaja hkra galaw ai. Madung hkum hkrang masat kumla ni gaw: n-gun (M40) > 85%, n-gun (M10) < 8%, 35–45% lapran na porosity hpe hkang lu ai lam ni lawm ai. Ndai parameters ni gaw cupola furnace a hka shang lu ai atsam, hka lim ai atsam, hka lim ai magri quality ni hpe hkrak sha shadut ya ai.
Mungkan ting na Foundry Hpung (IFA) gaw, foundry coke hpe n-gun masum hku garan nna, high-end precision casting a matu premium grade, mawdaw daw ni hpe n-gun dat ai a matu tsang 1, general casting galaw ai a matu tsang 2 ngu nna garan ginhka da ai. Htap htuk ai grade hpe lata ai gaw, hka lim ai atsam hpe 15–20% jat ya lu nna, n-gun yawng hpe 8–12% shayawm ya lu ai. Hkringmang daju a shingra tara tara ni rawt jat wa ai hte maren, n-gun n law ai foundry coke (sulfur n law ai hte nitrogen n law ai) hpe ra sharawng ai lam gaw lawan ladan rawt jat wa nga ai, shaning shagu 18% rawt jat wa ai hpe madun dan nga ai.
