M2 kev kub ceev cov cuab yeej hlau yog tungsten-molybdenum high-speed steel nrog cov pa roj carbon zoo sib xws thiab siab tawv. Nws tseem hu ua JIS SKH51 thiab DIN 1.3343 steel. Nws yog ib qho yooj yim rau overheat, tswj lub quenching cua sov kub yog qhov tsim nyog thiab kev tiv thaiv kev kho cua sov yuav tsum nruj. Nws yog siv dav los ua cov cuab yeej txiav vim nws qhov hnyav hnyav thiab hnav tsis kam. Nws tau hloov T1 kev kub ceev steel nyob rau hauv feem ntau daim ntaub ntawv, ua thawj xaiv ntawm cov neeg siv khoom vim nws cov kev ua tau zoo heev thiab tsis tshua muaj kev ua tau zoo tus nqi piv. M2 steel round bar ntawv phaj khoom thiab tshuaj muaj pes tsawg leeg raws li hauv qab no.
M2 Steel Qib sib npaug daim ntawv
| Lub teb chaws | Teb chaws USA | Lub teb chaws Yelemees / UK / Fabkis | Nyiv | ISO |
|---|---|---|---|---|
| Txuj | ASTM A 600-92a | EN ISO 4957-1999 | JIS G4403-2006 | ISO 4957-1999 |
| Qib | M2 (Standard C) | HS 6-5-2 | SIB 51 | HS 6-5-2 |
| Tus me nyuam mob: Hauv annealing (tsawg dua lossis sib npaug li 255HB), lossis tom qab kev kho cua sov (62-64HRC). | Kev Tswjhwm Zoo: 100% UT (Ultrasonic Testing), UT Standard yog SEP 1921-84 C/c. | |||
