20G:GB5310-95 ʻae ʻia ke kila maʻamau (haole e pili ana i ka papa: Kelemānia ST45.8, Iapana STB42, ʻAmelika Hui Pū ʻIa SA106B), ʻo ia ka mea maʻamau i hoʻohana ʻia i ka paila kila o ka paila, ka haku mele a me nā waiwai mechanical a me 20 pā i ke kumu like.He ikaika ko ke kila ma ka lumi wela a me ka mahana wela, haʻahaʻa carbon content, ʻoi aku ka maikaʻi o ka plasticity a me ka paʻakikī, ʻoi aku ka maikaʻi o kāna hana wela a me ke anuanu.Hoʻohana nui ʻia ia i ka hana ʻana i ke kaomi kiʻekiʻe a me nā ʻāpana kiʻekiʻe o ka paila paila, haʻahaʻa wela pauku superheater, reheater, economizer a me ka paia wai, etc. economizer paipu, nui anawaena paipu paia wela ≤450 ℃ mokuahi pipeline, pahu hōʻiliʻili (economizer, wai paia, haʻahaʻa wela superheater a me reheater huipu pahu), waena wela ≤450℃ paipu mea komo.No ka mea e hoʻopuka ke kila kalapona i ka graphitization i ka hana lōʻihi ma luna o 450 ℃, no laila, ʻoi aku ka maikaʻi o ka lōʻihi o ka lawelawe wela o ka paipu wela ma lalo o 450 ℃.ʻO ke kila i loko o kēia pae wela, hiki i kona ikaika ke hoʻokō i nā koi o ka superheater a me ka pipeline mahu, a he maikaʻi ke kūpaʻa oxidation, plasticity, paʻakikī, nā waiwai welding a me nā ʻano hana anu a me ka wela ʻē aʻe he maikaʻi loa, hoʻohana nui ʻia.ʻO nā ʻāpana o ke kila i hoʻohana ʻia i loko o ka umu Iranian (e pili ana i kahi hoʻonohonoho hoʻokahi) ʻo ka paipu inlet wai (28 tons), ka paipu inlet wai (20 tons), ka paipu pili mahu (26 tons), ka ipu economizer (8). tons), a me ka ʻōnaehana hoʻemi wai (5 tons), a hoʻohana ʻia ke koena e like me nā mea kila palahalaha a me nā mea derrick (ma kahi o 86 tons).

Sa-210c (25MnG): Helu kila maASME SA-210maʻamau.He paipu liʻiliʻi ke anawaena o ke kila manganese kalapona no nā paila a me nā mea wela nui, a me ke kila ikaika wela me ke ʻano momi.I ka makahiki 1995, ua hoʻololi ʻia i GB5310 a kapa ʻia ʻo 25MnG.He mea maʻalahi kona mea kemika, koe wale nō ka mea kiʻekiʻe o ke kalapona a me ka manganese, ʻo ke koena e like me 20G, no laila ʻo ka ikaika o ka hua ma kahi o 20% kiʻekiʻe ma mua o 20G, a ʻo ka plastic a me ka paʻakikī e like me 20G.He mea maʻalahi ka hana hana o ke kila a maikaʻi kāna hana hana anu a me ka wela.Ke hoʻohana nei ma kahi o 20G, hiki ke hoʻemi i ka mānoanoa o ka pā, hoʻemi i ka nui o nā mea, akā hiki ke hoʻomaikaʻi i ka hoʻoili wela o ka paila.ʻO kāna mau ʻāpana hoʻohana a me ka hoʻohana ʻana i ka mahana e like me 20G, hoʻohana nui ʻia no ka mahana hana ma lalo o 500 ℃ pā wai, economizer, superheater haʻahaʻa haʻahaʻa a me nā mea ʻē aʻe.
Sa-106c: He helu kila maASME SA-106maʻamau.He paipu kila kalapona-manganese ia no ka wela nui-anawaena boilers a me ka superheaters.He mea maʻalahi kona haku mele, e like me 20G carbon steel, akā ʻoi aku ka kiʻekiʻe o ka ʻike o ke kalapona a me ka manganese, no laila ʻoi aku ka ikaika o kona hua ma kahi o 12% kiʻekiʻe ma mua o 20G, a ʻo ka plastic, ʻaʻole maikaʻi ka paʻakikī.He mea maʻalahi ke kaʻina hana o ke kila a maikaʻi kāna hana hana anuanu a wela.Ke hoʻohana nei ia ma kahi o 20G manufacturing collector (economizer, wai hoʻoluʻu pā, haʻahaʻa wela superheater a me reheater hui pū pahu), hiki ke hoʻemi ʻia ka mānoanoa o ka pā ma kahi o 10%, ʻaʻole hiki ke mālama wale i ke kumukūʻai waiwai, akā e hōʻemi hoʻi i ka hana welding. a hoʻomaikaʻi i ka ʻokoʻa koʻikoʻi ke hoʻomaka ka pahu hui.
15Mo3 (15MoG) : He paipu kila ma DIN17175 maʻamau.ʻO ia ke anawaena liʻiliʻi ʻo carbon molybdenum steel tube no ka paila a me ka superheater, a me ke kila ikaika wela ʻano pearlescent.I ka makahiki 1995, ua hoʻololi ʻia i GB5310 a kapa ʻia ʻo 15MoG.He mea maʻalahi kona haku mele, akā aia ka molybdenum, no laila ʻoi aku ka maikaʻi o ka wela ma mua o ke kila kalapona ʻoiai e mālama ana i ka hana like me ke kila kalapona.Ma muli o kāna hana maikaʻi, kumu kūʻai maʻamau, ua hoʻohana nui ʻia i ka honua.Eia nō naʻe, ʻo ke kila i ka graphitization ma hope o ka hana lōʻihi ma ke kiʻekiʻe wela, no laila e hoʻomalu ʻia kona mahana hana ma lalo o 510 ℃, a ʻo ka nui o Al i hoʻohui ʻia i ka hoʻoheheʻe ʻana e kaupalena ʻia e hoʻomalu a hoʻopaneʻe i ke kaʻina hana graphitization.Hoʻohana nui ʻia kēia paipu kila no ka haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa a me ka haʻahaʻa wela reheater.Aia ka mahana o ka paia ma lalo o 510 ℃.ʻO kona haku mele C0.12-0.20, SI0.10-0.35, MN0.40-0.80, S≤0.035, P≤0.035, MO0.25-0.35;ʻO ka pae ikaika maʻamau σs≥270-285, σb≥450-600 MPa;ʻO ka delta plastik 22 a ʻoi aku paha.