Type 440 Stainless Steel, yomwe imadziwika kuti "lazor blade steel," ndi chitsulo cholimba cha carbon chromium. Ikayikidwa pansi pa chithandizo cha kutentha imakhala yolimba kwambiri kuposa mtundu uliwonse wazitsulo zosapanga dzimbiri. Type 440 Stainless Steel, yomwe imabwera m'makalasi anayi osiyanasiyana, 440A, 440B, 440C, 440F, imapereka kukana kwa dzimbiri komanso kukana kwa abrasion. Magiredi onse amatha kupangidwa mosavuta m'malo awo ophatikizika, amaperekanso kukana ma acid, ma alkali, zakudya, madzi abwino, ndi mpweya. Mtundu wa 440 ukhoza kuumitsa ku Rockwell 58 harness.
Chifukwa cha magiredi aliwonse apamwamba, magiredi onse a Type 440 Stainless Steel atha kupezeka muzinthu zingapo kuphatikiza:
- Pivot pini
- Zida zamano ndi opaleshoni
- Mipeni yapamwamba kwambiri
- Mipando yamavavu
- Nozzles
- Pampu zamafuta
- Rolling element bearings
Gulu lililonse la Type 440 Stainless Steel limapangidwa ndi mankhwala apadera. Tiyenera kudziwa kuti kusiyana kwakukulu pakati pa magiredi ndi kuchuluka kwa Carbon
Mtengo wa 440A
- Cr 16-18%
- 1%
- Ndi 1%
- Mwezi 0.75%
- P 0.04%
- S 0.03%
- C 0.6-0.75%
Mtengo wa 440B
- C 0.75-0.95%
Lembani 440C ndi 440F
- C 0.95-1.20%
Nthawi yotumiza: Oct-09-2020