201 Bakin Karfe
Abubuwan da ke cikin tagulla: J4>J1>J3>J2>J5.
Abubuwan da ke cikin Carbon: J5>J2>J3>J1>J4.
Tsarin taurin: J5, J2>J3>J1>J4.
Tsarin farashi daga babba zuwa ƙasa shine: J4>J1>J3>J2, J5.
J1 (Mid Copper): Abubuwan da ke cikin carbon ya ɗan fi J4 girma kuma abun cikin jan ƙarfe ya yi ƙasa da J4. Ayyukan sarrafa shi bai kaiJ4 ba. Shi ne dace da talakawa m zane da zurfin zane kayayyakin, kamar ado jirgin, sanitary kayayyakin, nutse, samfurin tube, da dai sauransu.
J2, J5: Bututun kayan ado: Sauƙaƙan bututun kayan ado har yanzu suna da kyau, saboda taurin yana da girma (duka sama da 96 °) kuma polishing ya fi kyau, amma bututun murabba'i ko bututu mai lankwasa (90 °) yana da haɗari ga fashe.
Dangane da farantin lebur: saboda tsayin daka, allon allon yana da kyau, da jiyya na saman kamar
sanyi, gogewa da plating abin karɓa ne. Amma babbar matsalar ita ce matsalar lankwasawa, lankwasawa tana da sauƙi karyewa, kuma tsagi yana da sauƙin fashe. Rashin ƙarfi.
J3 (Ƙasashen Copper): Ya dace da bututun ado. Ana iya yin aiki mai sauƙi a kan panel na kayan ado, amma ba zai yiwu ba tare da ɗan wahala. Akwai feedback cewa shearing farantin ne lankwasa, kuma akwai wani ciki kabu bayan watse (black titanium, launi farantin jerin, sanding farantin, karya, folded fita tare da ciki kabu). An gwada kayan nutsewa don tanƙwara, digiri 90, amma ba zai ci gaba ba.
J4 (High Copper): Yana da mafi girman ƙarshen jerin J. Ya dace da ƙananan nau'in nau'in kusurwa na samfurori mai zurfi. Yawancin samfuran da ke buƙatar tsinkar gishiri mai zurfi da gwajin feshin gishiri za su zaɓa shi. Misali, kwanon ruwa, kayan dafa abinci, kayan wanka, kwalabe na ruwa, kwalabe na ruwa, kwalabe, madaidaitan kofa, sarƙoƙi, da sauransu.
J1 J2 J3 J4 J6 Haɗin Sinadaran:
| Daraja | C | Mn | Si | P | S | Cr | Mo | Ni | Cu | N |
| J1 | 0.12 max | 9.0-11.0 | 0.80 max | 0.050 max | 0.008 max | 13.50 - 15.50 | 0.60 max | 0.90 - 2.00 | 0.70 min | 0.10 - 0.20 |
| J2 | 0.20 max | 9.0 min | 0.80 max | 0.060 max | 0.030 max | 13.0 min | 0.60 max | 0.80 min | 0.50 max | 0.20 max |
| J3 | 0.15 max | 8.5-11.0 | 0.80 max | 0.050 max | 0.008 max | 13.50 - 15.00 | 0.60 max | 0.90 - 2.00 | 0.50 min | 0.10 - 0.20 |
| J4 | 0.10 max | 9.0-11.0 | 0.80 max | 0.050 max | 0.008 max | 14.0 - 16.0 | 0.60 max | 0.90 - 2.00 | 1.40 min | 0.10 - 0.20 |
| J6 | 0.15 max | 6.5 min | 0.80 max | 0.060 max | 0.030 max | 13.50 min | 0.60 max | 3.50 min | 0.70 min | 0.10 min |
Lokacin aikawa: Yuli-07-2020