NM450 steel hnav phaj cov khoom siv tsuas yog siv rau kev thauj khoom cranes, excavators, tsheb thauj khoom pov tseg, conveyors, tsheb thauj khoom, crushing thiab txiav cov cuab yeej, kev kho cov khib nyiab thiab cov khoom siv rov ua dua tshiab. Piv nrog carbon steel phaj, NM450 hnav resistant steel phaj muaj siab abrasion tsis kam thiab zoo cuam tshuam, thiab tuaj yeem txiav, khoov thiab welded. Peb ua ntau yam kev ntsuam xyuas, xws li IGC xeem, orthotropic tests, mechanical tests, hardness tests, chemical tests, pitting resistance tests, thiab lwm yam. Tsis tas li ntawd, peb kuj ua cov neeg thib peb tshuaj xyuas ntawm NM450 steel phaj kom ntseeg tau 100% zoo.
Chemical Composition Ntawm NM 450 abrasion phaj:
| NM450 Chemical Compositiom | |||||||||||
| Phaj | C | Si | Mn | P | S | Cr | Ni | Mo | B | CEV | CET |
| tuab mm | max % | max % | max % | max % | max % | max % | max % | max % | max % | typv ua | typv ua |
| 3-(8) | 0.19 | 0.7 | 1.6 | 0.025 | 0.01 | 0.25 | 0.25 | 0.25 | 0.004 | 0.41 | 0.30 |
| 8-20 | 0.21 | 0.7 | 1.6 | 0.025 | 0.01 | 0.50 | 0.25 | 0.25 | 0.004 | 0.47 | 0.34 |
| (20)-40 | 0.23 | 0.7 | 1.6 | 0.025 | 0.01 | 1.00 | 0.25 | 0.25 | 0.004 | 0.57 | 0.37 |
| (40)-50 | 0.23 | 0.7 | 1.6 | 0.025 | 0.01 | 1.40 | 0.25 | 0.60 | 0.004 | 0.59 | 0.36 |
| (50)-80 | 0.26 | 0.7 | 1.6 | 0.025 | 0.01 | 1.40 | 1.00 | 0.60 | 0.004 | 0.72 | 0.41 |
Mechanical Properties rau NM 450 abrasion resistant steel ntawv:
| Mechanical zog ntawm NM 450 | |||||
| Thickness / hli | ReL / MPa | Rm / MPa | A/% | Hardness/HBW10/3000 | Kev cuam tshuam -20 degree /J |
| 8 | 1250 | 1460 | 16 | 445 | 40 |
| 12 | 1290 | 1470 | 17 | 462 | 43 |
| 20 | 1370 | 1450 | 17 | 473 | 42 |
| 25 | 1230 | 1480 | 16.5 | 465 | 43 |
