Is e alloy iarann-carbon a th’ ann an iarann teilgte le bloigh mhòr de charbon nas motha na 2.11%. Gheibhear iarann teilgte le bhith ag ath-leaghadh iarann muc anns an fhùirneis, a’ cur ferroalloy, a’ sgrap stàilinn, agus a’ tilleadh don fhùirneis gus an co-dhèanamh atharrachadh.Iarann leaghte liathagus is e iarann ductile an dà iarann teilgte as fharsainge a thathas a’ cleachdadh airson tilgeadh a dhèanamh.
Tha ìrean iarann teinnteach Sìona gu ìre mhòr air an cur an cèill agus air an comharrachadh le feartan meacanaigeach. Tha a’ chiad sheata de dh’àireamhan anns an ìre a’ comharrachadh an neart tensile as ìsle (ann am MPa), agus tha an dàrna seata àireamhan (ma tha gin ann) a’ comharrachadh an leudachadh as lugha aig àm briseadh (%). Tha an dà sheata àireamhan air an sgaradh le dash "-".
'S e HT an còd litrichean Beurla airson iarann glas, far a bheil H a' chiad litir den Pinyin Sìneach (Hui Se) a' ciallachadh liath; Is e T a’ chiad litir den Pinyin Sìneach (Tie) iarainn. Tha na h-àireamhan ann an ìrean iarann glas ann an Sìona a’ nochdadh an neart tensile as ìsle (MPa). Mar eisimpleir, tha HT250 a’ riochdachadh iarann glas le neart tensile aig a’ char as lugha de 250 MPa.
| Coimeas air Iarann Tilgte Grey bho dhiofar dhùthchannan | ||||||||||
| Chan eil. | Sìona | Iapan | Na Stàitean Aonaichte | ISO | A' Ghearmailt | An Fhraing | An Ruis | RA | ||
| GB | JIS | ASTM | UNS | DIN | W-Nr. | NF EN | uchd | BS | ||
| 1 | HT100 | FC100 | GG10 | 0.6010 | EN-GJL-100 | gu 10 | Ìre 100 | |||
| 2 | HT150 | FC150 | 150/~ Àir.20 | F11401 | ISO 185/JL/150 | GG15 | 0.6015 | EN-GJL-150 | gch15 | Ìre 150 |
| 3 | HT200 | FC200 | 200/~ Àir.30 | F12101 | ISO 185/JL/200 | GG20 | 0.6020 | EN-GJL-200 | gu 18 gu 20 gu 21 | Ìre 180 Ìre 220 |
| 4 | HT250 | FC250 | 250/~ Àir.35 | F12401 | ISO 185/JL/250 | GG25 | 0.6025 | EN-GJL-250 | g24 gu 25 | Ìre 260 |
| 5 | HT300 | FC300 | 300/~ Àir.45 | F13101 | ISO 185/JL/300 | GG30 | 0.6030 | EN-GJL-300 | gch30 | Ìre 300 |
| 6 | HT350 | FC350 | 350/~ Àir.50 | F13501 | ISO 185/JL/350 | GG35 | 0.6035 | EN-GJL-350 | g35 | Ìre 350 |
Còd litrichean Beurla aiarann ductileis e QT, far a bheil Q a’ chiad litir den Pinyin Sìneach (Qiumo) de ghrafait spheroidal Sìneach; Is e T a’ chiad litir den Pinyin Sìneach (Tie) iarainn. Tha dà sheata de àireamhan ann an ìrean iarainn ductile Sìona. Tha a’ chiad sheata de àireamhan a’ riochdachadh an neart tensile as ìsle (MPa), agus tha an dàrna seata àireamhan a’ riochdachadh an leudachadh às deidh briseadh (%). Tha an dà sheata àireamhan air an sgaradh le dash "-". Mar eisimpleir, tha QT400-18 a’ riochdachadh iarann ductile le neart tensile as ìsle de 480 MPa agus leudachadh as ìsle de 18%.
| Ìre iarainn ductile bho dhiofar dhùthchannan | ||||||||||
| Chan eil. | Sìona | Iapan | Na Stàitean Aonaichte | ISO | Gearmailteach | An Fhraing | An Ruis | RA BS | ||
| GB | JIS | ASTM | UNS | DIN | W-Nr. | NF | ||||
| 1 | FCD350-22 | - | - | 350-22 | - | - | - | Bc35 | 350/22 | |
| 2 | QT400-15 | FCD400-15 | - | - | 400-15 | GGG-40 | 0.7040 | EN-GJS-400-15 | Bc 40 | 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 | Bc 45 | 450/10 |
| 5 | QT500-7 | FCD500-7 | 80-55-6 | F33800 | 500-7 | GGG-50 | 0.7050 | EN-GJS-500-7 | Bc 50 | 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 | Bc 60 | 600/3 |
| 7 | QT700-2 | FCD700-2 | 100-70-03 | F34800 | 700-2 | GGG-70 | 0.7070 | EN-GJS-700-2 | Bc 70 | 700/2 |
| 8 | QT800-2 | FCD800-2 | 120-90-02 | F36200 | 800-2 | GGG-80 | 0.7080 | EN-GJS-800-2 | Bc 80 | 800/2 |
| 8 | QT900-2 | 120-90-02 | F36200 | 800-2 | GGG-80 | 0.7080 | EN-GJS-900-2 | ≈Bч100 | 900/2 | |
| Coimeas Iarainn Liath | Microstructure （Mìrean tomhas-lìonaidh） (％) | |||
| Sìona (GB/T 9439) | ISO 185 | ASTM A48/A48M | EN 1561 | Structar Matrix |
| HT100 (HT10-26) | 100 | Àir.20 F11401 | EN-GJL-100 | Pearlite: 30-70％, flakes garbh; Ferrite: 30-70％; Eutectic fosfair dà-chànanach: ＜7％ |
| HT150 (HT15-33) | 150 | Àir.25A F11701 | EN-GJL-150 | Pearlite: 40-90％, flakes garbh meadhanach; Ferrite: 10-60％; Eutectic fosfair dà-chànanach: ＜7％ |
| HT200 (HT20-40) | 200 | Àir.30A F12101 | EN-GJL-200 | Pearlite: ＞95％, flakes meadhanach; Ferrite＜5％; Eutectic fosfair dà-chànanach ＜4％ |
| HT250 (HT25-47) | 250 | Àir.35A F12401 Àir.40A F12801 | EN-GJL-250 | Pearlite: ＞98％ flakes tana meadhanach; Eutectic fosfair dà-chànanach: ＜2％ |
| HT300 (HT30-54) | 300 | Àir.45A F13301 | EN-GJL-300 | Pearlite: ＞98％ flakes tana meadhanach; Eutectic fosfair dà-chànanach: ＜2％ |
| HT350 (HT35-61) | 350 | Àir.50A F13501 | EN-GJL-350 | Pearlite: ＞98％ flakes tana meadhanach; Eutectic fosfair dà-chànanach: ＜1％ |
| Coimeas Iarainn Ductile | Co-dhèanamh ceimigeach (％) | Structar Matrix | |||||||||
| GB/T 1348-1988 | ASTM A536-84 (2004) | EN 1563:-1997 | C | Si | Mn | P | S | Mg | Re | cuid eile | |
| QT400-18 | 60-40-18 ① 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 | - | Annealed Ferrite |
| 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 | - | Annealed Ferrite |
| 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 | - | Annealed Ferrite |
| 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 + Ferrite |
| QT600-3 | 80-60-03 ② 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 | - | Pearlite àbhaisteach |
| 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 | Measgaich Microstructure |
| QT800-2 | - | GJS-800-2 JS1080 | 3.7-4.0 | ＜2.5 | ＜0.5 | ＜0.07 | ＜0.03 | - | - | Mo0.39 Cu0.82 | Measgaich 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 | Bainite Iarach |
| ① bho ASTM A716-2003. ② bho ASTM A476 / A476M-2000. | |||||||||||
Ùine puist: Lùnastal-13-2022