Le steel e se nang thuso ea 201
Litaba tsa koporo: J1> J1> J3> J2> J2.
Litaba tsa Carbon: J2> J2> J3> J1> J1> J4.
Ho hlophisoa ha Harckeniki: J5, J2> J3> J1> J4.
Taelo ea litheko e tsoang holimo ho ea tlase ke: J1> J1> J3> J2.
J1 (Copper): Litaba tsa khabone li phahame hanyane ho feta j4 le litaba tsa koporo li tlase ho j4. Ts'ebetso ea eona ea ts'ebetso e tlase ho feta. E loketse setšoantšo se tloaelehileng se sa tloaelehang le lihlahisoa tse tebileng tsa ho taka, tse kang board ea ho khabiso, tse kang board ea ho khabiso, tse kang boto ea ho nist, sunk, tu tu tu tui, jj. Tube
J2, J5: Likhabiso tse khabisitsoeng: Likhabinete tse khabisitsoeng li ntse li le ntle, hobane ho ba thata ho feta 96 °) ho fanoa ka ho phatloha.
Mabapi le poleiti e sephara: ka lebaka la thata e phahameng, bokaholimo bo botle bo botle, le kalafo e kang
Mafikeng, ho polishing le ho tšoaea lia amoheleha. Empa bothata bo boholo ke bothata ba ho betsa, ho be bonolo ho be le bino ho bonolo ho phatloha, 'me koro e bonolo ho phatloha. Ho itšepa hampe.
J3 (kopo ea lijo tse tlase): E loketse li-tubente tse khabisitsoeng. Ts'ebetso e bonolo e ka etsoa ka har'a phanele ea khabiso, empa ha e khonehe ka bothata bo nyane. Ho na le maikutlo a hore poleiti e thellang e kotula, 'me ho na le seoa se kahare kamora ho roba (seretse se moputsoa Boitsebiso bo tenang bo lekile ho khumama, likhato tsa 90, empa e ke ke ea tsoela pele.
J4 (koporo e phahameng): Ke pheletso e phahameng ea letoto la J. E loketse mefuta e nyane ea li-angle ea lihlahisoa tse tebileng tsa ho taka. Boholo ba lihlahisoa tse hlokang tlhahlobo e tebileng ea letsoai le letsoai le tla e khetha. Ka mohlala, silika, lisebelisoa tsa kichineng, lihlahisoa tsa kasekeng, libotlolo tsa metsi, libotlolo tsa metsi, mamati a lemati, joalo-shackes, jj.
J1 J2 J2 J4 J6 Coumations:
| Keletso | C | Mn | Si | P | S | Cr | Mo | Ni | Cu | N |
| J1 | 0.12 max | 9.011.0 | 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 | 8.511.0 | 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 | 9.011.0 | 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 |
Nako ea poso: Jul-07-2020