Khaub thuas drawn y40mn hlau anealing hlau rau khaub thuas taub hau

Qib: Y40MN Dawb Txiav Hlau

Txheem: GB / T8731-88 GB / T8731-2008

Cov Khoom Lag Luam: Round pas nrig, hexagonal pas nrig, square pas, square pas, cov khoom siv puab

Dawb Txiav Hlau Rau Kev Siv

Siv raws li tig hlau, siv dav hauv cov txheej txheem.

Cov pa roj carbon C: 0.37 ~ 0.45

Silicon Si: 0.15 ~ 0.35

MANMANESE MN: 1.20 ~ 1.55

Sulphur S: 0.20 ~ 0.30

P: ≤0.05

Cov Khoom Siv Neeg Kho Tshuab Ntawm Kub Rolling

Brinell Hardness: (Kub Rolling) ≤24HBW;

Cov Khoom Siv Neeg Kho Tshuab Ntawm Cov Khaub Ncaws Txias

Tensile lub zog RM / (N / MM2) (txias kos) φ8-φ20: 610 ~ 900;

Brinell Hardness: (Khaub thuas Drawn) ≤196 ~ 255HBW;

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