40cr igwe anaghị agba nchara

Nkọwa dị mkpirikpi:

Nkọwapụta mmepụta:

Mpụga dayameta nke ígwè ọkpọkọ 20-426

Mgbidi ígwè ọkpọkọ nke 20-426

Ọkọlọtọ ọkpọkọ igwe:

Dị ka ọkọlọtọ GB/T 3077-2008: chemical mejupụtara (oke ntakiri,%) C 0.37 ~ 0.44, Si 0.17 ~ 0.37, Mn 0.50 ~ 0.80, Cr0.80 ~ 1.10, Ni≤0.30.【 Mechanical Njirimara】

Nha oghere (mm): 25

Ọgwụgwọ okpomọkụ:

Mbụ quenching okpomọkụ okpomọkụ (℃): 850;Igwe oyi: Mmanụ

Okpomọkụ ikpo ọkụ nke abụọ na-emenyụ ọkụ (℃): -

Igwe ọkụ na-ekpo ọkụ (℃): 520;Coolant: mmiri, mmanụ

Ike nkwụsị (σb/MPa): ≧980

Ọnụ mkpụrụ (σs/MPa): ≧785

Elongation mgbe agbajisịrị (δ5/%) : ≧9

Ọnụego mbelata nke ngalaba obe (ψ/%) : ≧45

Ọrụ nnabata mmetụta (Aku2/J): ≧47

Brinell hardness (HBS100/3000) (na-afụ ụfụ ma ọ bụ ọnọdụ okpomọkụ dị elu): ≦207