16Mn ne low gami high karfi tsari karfe: carbon abun ciki ne 0.1% -0.25%, ƙara manyan gami abubuwa manganese, silicon, vanadium, niobium da titanium da sauransu; Kasuwancin ma'auni ya kai kashi 3%. An raba su zuwa matakai 4 bisa ƙarfi, 300, 350, 400 da 450MPa. Yawancin su ne Q295, Q345, Q390, Q420, Q460. "Q" shine "屈" kalma na kasar Sin Pinyin manyan haruffa, bayan lambar ne alama mafi ƙarancin submission maki (σs) darajar, bayan alama ne bisa ga karfe ƙarancin abubuwa (sulfur, phosphorus) abun ciki daga high zuwa low da kuma tare da carbon abun cikiCanje-canje na manganese abubuwa da aka raba zuwa A, B, C, D, da sauransu. A, B grade karfe yawanci aka kira 16Mn

16Mn suture karfe bututu a cikin wani abu. A baya seamless karfe bututun da ake kira. Yanzu sunan ne: Q345B seamless karfe bututu, da wannan kama da kayan ne Q345C, Q345D, Q345E, ingancin darajar alama A B C D E bi da bi ya nuna cewa ba a buƙatar tasiri gwajin tasiri gwajin zafin jiki ne + 20 digiri 0 digiri -20 digiri 40 digiri.

Rubutu

16Mn ne wani abu a cikin seamless karfe bututu.

ABCD yana nuna ingancin matakin Q235 ingancin matakin ya rabu zuwa matakai huɗu, daga A zuwa D yana nuna ingancin daga ƙananan zuwa babban. A - samar da S, P, C, Mn, Si sinadarai da fu, fy, δ5 (δ10), bisa ga mai siye bukatun za a iya samar da 1800 sanyi bending gwaji, amma babu wani tasiri aiki tanadi, carbon abun ciki da kuma manganese abun ciki ba a matsayin isar da yanayi. B - samar da S, P, C, Mn, Si sinadarai da fu, fy, δ5 (δ10), sanyi mai lankwasawa 180 'gwaji. Har ila yau, ana ba da tasiri aiki Ak≥27J a lokacin + 200C C - ban da kamar yadda ake buƙata da matakin B, ana ba da tasiri aiki Ak≥27J a lokacin 00C. D --- Baya ga kamar yadda ake buƙata da matakin B, kuma samar da tasiri aiki Ak≥27J a -200C E --- Baya ga kamar yadda ake buƙata da matakin B, kuma samar da tasiri aiki Ak≥27J a -400C.