1. Kōpikohia hei whakatika i te kaupapa o tēnei paraka
H13 te maitai matee whakamahia ana hei hanga i ngā mate hanga me te kawenga pānga nui, ngā mate whakaputa wera, ngā mate hanga tino tika; ngā mate maka-mate mō te konumohe, te parahi me ō rātou koranu.

Koinei te putanga mai o te maitai mate wera whakapakeke hau H13 mai i te Hononga o Amerika. He rite tonu ōna āhuatanga me āna whakamahinga ki ērā o te maitai 4Cr5MoSiV, engari nā te nui ake o te vanadium, he pai ake te mahi pāmahana waenga (600 nekehanga) i te maitai 4Cr5MoSiV. He momo maitai tino pai tēnei, he whānuitia ngā whakamahinga i roto i te maitai mate wera.
2. Ngā Āhuatanga
He maitai whakarewa-hiko te maitai, he pakari te pakari me te ātete ki te pakaru wera, he nui ake te waro me te vanadium o te maitai, he pai te ātete ki te kakahu, he ngoikore te pakari, ā, he pai te ātete ki te wera. I ngā pāmahana teitei ake, he kaha ake, he pakari ake, he ātete ki te kakahu me te pakari, he tino pai ngā āhuatanga miihini whānui, ā, he pumau te ātete ki te whakamahana.
3. Te hanganga matū o te maitai
He maitai C-Cr-Mo-Si-V te maitai H13, e whakamahia whānuitia ana puta noa i te ao. I taua wā anō, he maha ngā tohunga o ngā whenua kua rangahau whānui mōna, ā, kei te tūhura i te whakapai ake i te hanganga matū. He whānuitia te whakamahinga o te maitai, ā, he tino pai ōna āhuatanga, ko te nuinga o te wā ka whakatauhia e te hanganga matū o te maitai. Ko te tikanga, me whakaiti ngā mea poke i roto i te maitai. E whakaatu ana ētahi raraunga ina 1550MPa te Rm, ka whakaitihia te ihirangi whanariki o te rauemi mai i te 0.005% ki te 0.003%, ka piki ake te pakari o te pānga mā te 13J pea. He mārama, e kī ana te paerewa NADCA 207-2003 me iti iho i te 0.005% te ihirangi whanariki o te maitai H13 kounga teitei, ko te ihirangi whanariki o te maitai kounga teitei me iti iho i te 0.003%S me te 0.015%P. Ka tātarihia te hanganga o te maitai H13 i raro nei.

Waro: Ko te AISI H13 o Amerika, UNS T20813, ASTM (te putanga hou) H13 me te FED QQ-T-570 H13 he nui te waro o te (0.32~0.45)%, koinei te nui rawa o te waro o ngā mea katoa.Ngā maitai H13. Whānui. Ko te ihirangi waro o te X40CrMoV5-1 Tiamana me te 1.2344 he (0.37~0.43)%, ā, he whaiti te awhe ihirangi waro. I roto i te DIN17350 Tiamana, ko te ihirangi waro o te X38CrMoV5-1 he (0.36~0.42)%. Ko te ihirangi waro o te SKD 61 i Hapani he (0.32~0.42)%. Ko te ihirangi waro o te 4Cr5MoSiV1 me te SM 4Cr5MoSiV1 i roto i te GB/T 1299 me te YB/T 094 o tōku whenua he (0.32~0.42)% me te (0.32~0.45)%, he rite tonu ki te SKD61 me te AISI H13. Ina koa, me tohu ko te ihirangi waro o te maitai H13 i roto i ngā paerewa NADCA 207-90, 207-97 me 207-2003 o te North American Die Casting Association kua tohua ko (0.37~0.42)%.

Ko te maitai H13 kei roto ko te 5% Cr, me mau tonu tōna ihirangi C ki te taumata e hanga ana i te iti o ngā matū koranu C. I tohu a Woodyatt rāua ko Krauss, i runga i te hoahoa wāhanga tuatoru Fe-Cr-C i te 870℃, he pai ake te tūranga o te maitai H13 i te hononga o ngā rohe wāhanga-toru austenite A me (A+M3C+M7C3). Ko te ihirangi C e rite ana he tata ki te 0.4%. I tohuhia hoki e te whika te pikinga o te nui o C, Cr rānei hei whakanui ake i te nui o M7C3, ā, ko ngā maitai A2 me D2 he ātete kakahu teitei ake hei whakataurite. He mea nui hoki kia mau tonu te ihirangi C iti kia eke te pūwāhi Ms o te maitai ki te taumata pāmahana teitei (ko te Ms o te maitai H13 e whakaahuatia whānuitia ana ko te 340℃), kia taea ai te tinei i te maitai ki te pāmahana rūma. Whiwhihia te hanganga matū koranu C i hangaia nuitia mai i te martensite me te iti o te toenga A me te tohatoha ōrite o te toenga, ā, whiwhi i te hanganga martensite kua whakapakeketia ōrite i muri i te whakapakeketanga. Kaua e whakawhiti i te nui rawa o te austenite i puritia i te pāmahana mahi kia pā ki te mahi mahi, ki te whakarerekētanga rānei o te mea mahi. Me whakawhiti katoa ēnei iti o te austenite i puritia i roto i ngā tukanga whakapakeketanga e rua, e toru rānei i muri i te tineitanga. Waihoki, e tohuhia ana i konei ko te hanganga martensite i whiwhi i muri i te tineitanga o te maitai H13 ko te papa M + he iti o te konganuku M + he iti o te toenga A. Ko ngā waro koranu tino pai i whakatōngia ki runga i te papa M i muri i te whakapakeketanga. Kua mahi hoki ngā tohunga o te whenua i ētahi mahi.