Fè jete se yon alyaj fè-kabòn ki gen yon fraksyon mas kabòn ki pi gran pase 2.11%. Fè jete yo jwenn nan refonn fè kochon nan gwo fou a, ajoute ferroalloy, bouyon asye, epi retounen nan gwo fou a ajiste konpozisyon an.Gri jete fèak fè duktil yo se de fè jete ki pi lajman itilize pou pwodwi depoze.
Klas fè jete Lachin nan yo sitou eksprime ak distenge pa pwopriyete mekanik. Premye seri nimewo nan klas la endike fòs rupture minimòm lan (an MPa), ak dezyèm seri nimewo (si genyen) endike elongasyon minimòm nan kraze (%). De seri nimewo yo separe pa yon priz "-".
Kòd lèt angle an fè gri se HT, kote H se premye lèt Chinwa Pinyin (Hui Se) ki vle di gri; T se premye lèt Chinwa Pinyin (Tie) an fè. Nimewo yo nan klas gri fè Lachin nan endike fòs la rupture minimòm (MPa). Pou egzanp, HT250 reprezante gri kas fè ak yon fòs rupture minimòm de 250 MPa.
| Konparezon Gri kas an fè soti nan diferan peyi | ||||||||||
| Non. | Lachin | Japon | USA | ISO | Almay | Lafrans | Larisi | UK | ||
| GB | JIS | ASTM | UNS | DIN | W-Nr. | NF EN | гост | BS | ||
| 1 | HT100 | FC100 | GG10 | 0.6010 | EN-GJL-100 | гч10 | Klas 100 | |||
| 2 | HT150 | FC150 | 150/~ No.20 | F11401 | ISO 185/JL/150 | GG15 | 0.6015 | EN-GJL-150 | гч15 | Klas 150 |
| 3 | HT200 | FC200 | 200/~ No.30 | F12101 | ISO 185/JL/200 | GG20 | 0.6020 | EN-GJL-200 | гч18 гч20 гч21 | Klas 180 Klas 220 |
| 4 | HT250 | FC250 | 250/~ No.35 | F12401 | ISO 185/JL/250 | GG25 | 0.6025 | EN-GJL-250 | гч24 гч25 | Klas 260 |
| 5 | HT300 | FC300 | 300/~ No.45 | F13101 | ISO 185/JL/300 | GG30 | 0.6030 | EN-GJL-300 | гч30 | Klas 300 |
| 6 | HT350 | FC350 | 350/~ No.50 | F13501 | ISO 185/JL/350 | GG35 | 0.6035 | EN-GJL-350 | гч35 | Klas 350 |
Kòd lèt angle a nanfè duktilse QT, kote Q se premye lèt Chinwa Pinyin (Qiumo) nan grafit esferoidal Chinwa; T se premye lèt Chinwa Pinyin (Tie) an fè. Gen de seri nimewo nan klas ductile fè Lachin nan. Premye seri nimewo reprezante fòs rupture minimòm (MPa), ak dezyèm seri nimewo reprezante elongasyon apre ka zo kase (%). De seri nimewo yo separe pa yon priz "-". Pou egzanp, QT400-18 reprezante yon fè duktil ak yon fòs rupture minimòm de 480 MPa ak yon elongasyon minimòm de 18%.
| Ductile Iron Klas ki soti nan diferan peyi | ||||||||||
| Non. | Lachin | Japon | USA | ISO | Alman | Lafrans | Larisi гост | UK BS | ||
| GB | JIS | ASTM | UNS | DIN | W-Nr. | NF | ||||
| 1 | FCD350-22 | - | - | 350-22 | - | - | - | Bч35 | 350/22 | |
| 2 | QT400-15 | FCD400-15 | - | - | 400-15 | GGG-40 | 0.7040 | EN-GJS-400-15 | Bч40 | 370/17 |
| 3 | QT400-18 | FCD400-18 | 60-40-18 | F32800 | 400-18 | - | - | EN-GJS-400-18 | - | 400/18 |
| 4 | QT450-10 | FCD450-10 | 65-45-12 | F33100 | 450-10 | - | - | EN-GJS-450-10 | Bч45 | 450/10 |
| 5 | QT500-7 | FCD500-7 | 80-55-6 | F33800 | 500-7 | GGG-50 | 0.7050 | EN-GJS-500-7 | Bч50 | 500/7 |
| 6 | QT600-3 | FCD600-3 | ≈80-55-06 ≈100-70-03 | F3300 F34800 | 600-3 | GGG-60 | 0.7060 | EN-GJS-600-3 | Bч60 | 600/3 |
| 7 | QT700-2 | FCD700-2 | 100-70-03 | F34800 | 700-2 | GGG-70 | 0.7070 | EN-GJS-700-2 | Bч70 | 700/2 |
| 8 | QT800-2 | FCD800-2 | 120-90-02 | F36200 | 800-2 | GGG-80 | 0.7080 | EN-GJS-800-2 | Bч80 | 800/2 |
| 8 | QT900-2 | 120-90-02 | F36200 | 800-2 | GGG-80 | 0.7080 | EN-GJS-900-2 | ≈Bч100 | 900/2 | |
| Grey Iron Konparezon | Mikwostrikti（Fraksyon Volim）（％） | |||
| Lachin (GB/T 9439) | ISO 185 | ASTM A48/A48M | EN 1561 | Estrikti Matris |
| HT100 (HT10-26) | 100 | No.20 F11401 | EN-GJL-100 | Pearlite: 30-70%, flak koryas; Ferit: 30-70%; Binè Fosfò Eutektik: ＜7％ |
| HT150 (HT15-33) | 150 | No.25A F11701 | EN-GJL-150 | Pearlite: 40-90%, mwayen flak koryas; Ferit: 10-60％; Binè Fosfò Eutektik:＜7％ |
| HT200 (HT20-40) | 200 | No.30A F12101 | EN-GJL-200 | Pearlite: ＞95％, flak mwayen; Ferit <5%; Binè Fosfò Eutektik＜4％ |
| HT250 (HT25-47) | 250 | No.35A F12401 No.40A F12801 | EN-GJL-250 | Pearlite: ＞98％ mwayen flak mens; Binè Fosfò Eutektik:＜2％ |
| HT300 (HT30-54) | 300 | No.45A F13301 | EN-GJL-300 | Pearlite: ＞98％ mwayen flak mens; Binè Fosfò Eutektik:＜2％ |
| HT350 (HT35-61) | 350 | No.50A F13501 | EN-GJL-350 | Pearlite: ＞98％ mwayen flak mens; Binè Fosfò Eutektik:＜1％ |
| Ductile Iron Konparezon | Konpozisyon chimik（％） | Estrikti Matris | |||||||||
| GB/T 1348-1988 | ASTM A536-84 (2004) | EN 1563:-1997 | C | Si | Mn | P | S | Mg | Re | lòt moun | |
| QT400-18 | 60-40-18① F32800 | GJS-400-18 JS1020 | 3.6-3.8 | 2.3-2.7 | ＜0.5 | ＜0.08 | <0.025 | 0.03-0.05 | 0.02-0.03 | — | Ferit rkwit |
| QT400-15 | 60-42-10 F32900 | GJS-400-15 JS1030 | 3.5-3.6 | 3.0-3.2 | ＜0.5 | ＜0.07 | ＜0.02 | 0.04 | 0.02 | — | Ferit rkwit |
| QT450-10 | 65-45-12 F33100 | GJS-450-10 JS1040 | 3.4-3.9 | 2.7-3.0 | 0.2-0.5 | ＜0.07 | ＜0.03 | 0.06-0.1 | 0.03-0.1 | — | Ferit rkwit |
| QT500-7 | 70-50-05 | GJS-500-7 JS1050 | 3.6-3.8 | 2.5-2.9 | ＜0.6 | ＜0.08 | <0.025 | 0.03-0.05 | 0.03-0.05 | — | Pearlite + Ferit |
| QT600-3 | 80-60-03② F34100 | GJS-600-3 JS1060 | 3.6-3.8 | 2.0-2.4 | 0.5-0.7 | ＜0.08 | <0.025 | 0.035-0.05 | 0.025-0.045 | — | Nòmalize Pearlite |
| QT700-2 | 100-70-03 F34800 | GJS-700-2 JS1070 | 3.7-4.0 | 2.3-2.6 | 0.5-0.8 | ＜0.08 | ＜0.02 | 0.035-0.065 | 0.035-0.065 | Mo0.15-0.4 Cu0.4-0.8 | Melanje Microstructure |
| QT800-2 | - | GJS-800-2 JS1080 | 3.7-4.0 | ＜2.5 | ＜0.5 | ＜0.07 | ＜0.03 | — | — | Mo0.39 Cu0.82 | Melanje Microstructure |
| QT900-2 | 120-90-02 F36200 | GJS-900-2 JS1090 | 3.5-3.7 | 2.7-3.0 | ＜0.5 | ＜0.08 | <0.025 | 0.03-0.05 | 0.025-0.045 | Mo0.15-0.25 Cu0.5-0.7 | Lower Bainite |
| ① soti nan ASTM A716-2003. ② soti nan ASTM A476/A476M-2000. | |||||||||||
Tan pòs: Out-13-2022