SCM425 SCM430 SCM432 SCM435 SCM440 SCM445 SCM822 SNC236 SNC415 SNC631 SNC815 SNC836 SNCM220 SNCM415 SNCM420 SNCM431 SNCM439 SNCM447 SNCM616 SNCM625 SNCM630 SNCM815 SACM645
保证淬透性结构钢
SMn420H SMn433H SMn438H SMn443H SMnC420H SMnC443H SCr415H SCr420H SCr430H SCr435H SCr440H SCM415H SCM418H SCM420H SCM425H SCM435H SCM440H SCM445H SCM822H SNC415H SNC631H SNC631H SNC815H SNCM220H SNCM420H
易切削钢 SUN21 SUM22 SUM22L SUM23 SUM23L SUM24L SUM25 SUM31 SUM32 SUM41 SUM42 SUM43
钢 号 |
试块截面/mm |
力学性能(不小于) |
||||
σb /MPa |
σs② / Mpa |
δ (%) |
ψ (%) |
Akv ≥ /J |
||
200—400 |
28 |
400~550 |
200 |
25 |
40 |
30 |
200—400W |
28 |
400~550 |
200 |
25 |
40 |
45 |
230—450 |
28 |
450~600 |
230 |
22 |
31 |
25 |
230—450W |
28 |
450~600 |
230 |
22 |
31 |
45 |
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