Stainless hlau 440B
440B stainless hlau yog martensitic stainless hlau, nrog hardness siab dua 440A steel, 440B thiab 440C qib yog zoo sib xws, tab sis cov ntsiab lus ntawm carbon yog me ntsis qis, nws ua tau ib tug qis hardness tshaj 440C, tab sis marginally zoo corrosion kev kawm thiab siab toughness dua 440C steel. .
Stainless hlau 440B feem ntau yog tempered ntawm qhov kub ntawm 800-920 degree, quenched ntawm qhov kub thiab txiasntawm 1010-1070 degree , thiab tempered ntawm qhov kub ntawm 100-180 degree .
Chemical Composition (%) ntawm Stainless Hlau 440B
| C | Mn, mas | P, max | S, max | Si, max | Cr | Nim, max | Mas, max |
| 0.85-0.95 | 1.00 | 0.035 | 0.030 | 1.00 | 16.00-18.00 | 0.60 | 0.75 |
Mechanical Properties ntawm Stainless hlau 440B
| Qhov kawg Tensile Strength, N / mm² | Yield zog (0.2%), N/mm² | Elongation (50.8mm) feem pua | Hardness, HRC |
| 1930 | 1860 | 3 | 54 |
Lub cev muaj zog ntawm Stainless Hlau 440B
| Qhov ntom | Melting point | Elastic modulus | Thermal conductivity | Poisson tus ratio |
| 7.74 g / cm³ | 1482 degree [2700 degree F] | 190-210 GPa | 24.2 W/m.K | 0.27-0.30 |
Cov yam ntxwv ntawm Stainless hlau 440B
- Lub zog zoo
- Nruab nrab corrosion kuj
- Kev tiv thaiv zoo heev
- Zoo abrasion tsis kam
-High viscosity
Daim ntawv thov ntawm Stainless hlau 440B
440B stainless hlau yog siv rau cov cuab yeej ntse, ntsuas thiab bearings, thiab li qub. Nws yog tsim rau bayonet sharpening khoom.
