Baja tahan tagar

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Waja tahan tagar dipakaibgasan kaparluan industri amun ada pakakas penting nang parlu awet wan diharagu tatap barasih

Baja tahan tagar atawa Waja tahan tagaratawa nang rancak dipinandui lawan ngaran Stainless steel[1][2] kalumpuk lugam nang babahan dasar wasi wan campuran nang baisi minimal sakitar 11% kromium,[3][4] sabuting campuran nang kawa mancagah wasi jadi batagar[5] wan jua maulah wasi tadi jadi tahan panas.[6][7] Bamacam tipe waja tahan tagar baisi kandung elemen karbon (matan 0.03% sampai labih pada 1.00%), nitrogen, aluminium, silikon, sulfur, titanium, nikel, tambaga, selenium, niobium, wan molybdenum.[3] Sapalihan macam waja tahan tagar rancak diulah lawan tiga buting angka, cuntuhnya adalah waja tahan tagar 304.

Katahanan matan kurusi waja tahan tagar marupakan hasil adanya kandungan kromium wan lugam lugam campuran nang maulah pasivasi kimia nang malindungi material dasar matan saranagn kurusi wan kawa manyambuhakan surang pas ada uksigen.[3] Katahanan kurusi kawa ditingkatakan ka tingkat nang tatinggi lawan cara:

  • maningkatakan material kromium nang ada ka tingkat di atas 11%;[4]
  • tambahan 8% atau nang tatinggi lagi matan nikel;[4] wan
  • panambahan molybdenum (nang bafungsi gasan manambah katahanan matan kurusi lubang.[4]

panambahan nitrugin maningkatakan jua lawan katahan matan kurusi lubang wan manaikakan kakuatan mikanis.[4] Jadi, banyak tingkatan waja tahan tagar nang baisi tingkatan kromium wan molybdenum gasan manyasuaikan kaparluan matan waja tahan tagar tadi.[8]

Efek bagi kasihatan[babak | babak asal mulanya]

Bamasak[babak | babak asal mulanya]

Baja tahan tagar biasanya kada babahaya gasan kasihatan makhluk hidup, tapi sapalihan urang ada nang kada tahan kawa mandapati iritasi kulit maraga alergi nikel lawan sapalihan lugam tatantu.

Baja tahan tagar manyarap nikel wan kromium dalam jumlah halus haratan bamasak.[9]

Pangalasan[babak | babak asal mulanya]

Ada panalitian luas nang manampaiakan bahwa mahirup asap pangalasan waja tahan tagar maningkatakan risiku takana panyakit kanker (pasnya kanker paparu).[10][11]

Catatan Batis[babak | babak asal mulanya]

  1. ^ Peckner, Donald; Bernstein, I.M. (1977). Handbook of Stainless Steels. McGraw Hill. ISBN 9780070491472. 
  2. ^ Cobb, Harold M. (2010). The History of Stainless Steel. Materials Park, OH: ASM International. ISBN 9781615030118. Diakses tanggal March 8, 2020. 
  3. ^ a b c Davis, Joseph R. (ed.) (1994). Stainless Steels. ASM Specialty Handbook. Materials Park, OH: ASM International. ISBN 9780871705037. Diakses tanggal March 8, 2020. 
  4. ^ a b c d e ISSF Staff (8 March 2020). "The Stainless Steel Family" (PDF). Brussels, Belgium: International Stainless Steel Forum. hlm. 1, of 5. Diakses tanggal 8 March 2020. 
  5. ^ Rust refers to hydrated forms of ferric oxide, that is, to the "reddish brittle coating formed on iron especially when chemically attacked by moist air", see Merriam-Webster.com, op. cit.
  6. ^ "Definition of RUST". www.merriam-webster.com. 
  7. ^ "Corrosion | chemical process". Encyclopedia Britannica. 
  8. ^ Chapter 05: Corrosion Resistance of Stainless Steels https://www.imoa.info/download_files/stainless-steel/issf/educational/Module_05_Corrosion_Resistance_of_Stainless_Steels_en.pdf
  9. ^ Safe Cookware
  10. ^ Langård, S. and R.M. Stern, "Nickel in welding fumes--a cancer hazard to welders? A review of epidemiological studies on cancer in welders," 1984, IARC Scientific Publications 1984;(53):95-103, summarized on website of National Institutes of Health, retrieved March 16, 2020
  11. ^ Lauritsen, J.M., K.S. Hansen, and A. Skytthe: "Cancer incidence among mild steel and stainless steel welders and other metal workers," October 1996, American Journal of Industrial Medicine, pp.373-82, summarized on website of National Institutes of Health, retrieved March 16, 2020