Qhov txawv ntawm 440A, 440B thiab 440C Series Steels yog dab tsi?
Tso lus
Dab tsi yog qhov txawv ntawm 440A, 440B thiab 440C series steels?
440 A - 440 B - 440C
Cov ntsiab lus carbon thiab hardness tau nce ntxiv los ntawm ABC (A-0.75%, B-0.9%, C-1.2%). 440C yog ib qho zoo heev high-end stainless hlau, feem ntau hardness ntawm 56-58 Rc. Cov xeb kuj ntawm peb hom hlau no zoo, 440A yog qhov zoo tshaj plaws, thiab 440C yog qhov qis tshaj.
SOG SEAL 2000 siv 440A thiab Randall siv 440B los tsim lawv cov cutters stainless hlau. 440C yog dav siv thiab yog zaum ob feem ntau siv stainless hlau (tom qab ATS-34). Yog tias koj rab riam tau sau tias "440," ces nws yuav pheej yig dua 440A; Yog tias cov tuam txhab siv 440C kim dua, lawv yuav zoo siab tshaj tawm qhov no. Qhov kev xav dav dav yog tias 440A yog qhov zoo rau kev siv txhua hnub, tshwj xeeb tshaj yog 440A nrog kev kho cua sov zoo (peb hnov tias SOG's 440A kev kho cua sov tau txais zoo heev, Kuv xav tsis thoob tias lawv ntiav leej twg los ua qhov no). Lub 440B yog qhov ruaj khov, thaum 440C yog qhov zoo dua.
