Mapaipi achitsulo chosasunthika amatha kugawidwa m'mapaipi achitsulo chosasunthika a ASTM American standard, mapaipi achitsulo chosasunthika a DIN German standard, mapaipi achitsulo chosasunthika a JIS Japanese standard, mapaipi achitsulo chosasunthika a GB national seamless, mapaipi achitsulo chosasunthika a API ndi mitundu ina malinga ndi miyezo yawo. Mapaipi achitsulo chosasunthika a ASTM American standard amagwiritsidwa ntchito kwambiri padziko lonse lapansi, ndipo mitundu yawo ndi yosiyanasiyana. Magawo oyenera a mapaipi achitsulo chosasunthika a ASTMASTM a179Mapaipi achitsulo osasenda a ku America /179m/sa179/sa-179m alembedwa motere:
ntchito
Yoyenera mapaipi achitsulo omwe amagwiritsidwa ntchito mu zosinthira kutentha zamachubu, zokondetsa ndi zida zina zofananira zotumizira kutentha.
Chitsulo chitoliro kalasi
A179, SA179
Kapangidwe ka makina:
| Muyezo | Giredi | Kulimba kwamakokedwe (MPa) | Mphamvu Yopereka (MPa) | Kutalika: (%) |
| ASTM A179/ASME SA179 | A179/SA179 | ≥325 | ≥180 | ≥35 |
Kapangidwe ka mankhwala:
| Muyezo | Giredi | Malire a kapangidwe ka mankhwala,% | |||||||||
| C | Si | Mn | P | S | Cr | Mo | Cu | Ni | V | ||
| ASTM A179 | A179 | 0.06～0.18 | / | 0.27～0.63 | ≤0.035 | ≤0.035 | / | / | / | / | / |
Ndemanga:
| HR: yotentha yozungulira | CW: ntchito yozizira | SR: kupsinjika maganizo kuchepetsedwa |
| A: wodzazidwa | N: mwachibadwa | HF |
Njira yopangira mapaipi achitsulo chopanda msoko. Malinga ndi njira yopangira, mapaipi achitsulo chopanda msoko amagawidwa m'mapaipi achitsulo chopanda msoko otentha, mapaipi achitsulo chopanda msoko ozizira, mapaipi achitsulo chopanda msoko obowoledwa ndi kutambasulidwa, ndi mapaipi achitsulo chopanda msoko otuluka molunjika. Njira ziwiri zoyambirira zimagwiritsidwa ntchito popanga mapaipi achitsulo chopanda msoko ambiri, omwe m'mimba mwake nthawi zambiri amakhala 8-406, ndipo makulidwe a khoma nthawi zambiri amakhala 2-25; njira ziwiri zomalizazi zimagwiritsidwa ntchito popanga mapaipi achitsulo chopanda msoko akuluakulu, omwe m'mimba mwake nthawi zambiri amakhala 406-1800, ndipo makulidwe a khoma ndi 20mm-220mm. Malinga ndi momwe amagwiritsidwira ntchito, akhoza kugawidwa m'magulu awiri:mapaipi achitsulo opanda msoko a nyumba, mapaipi achitsulo opanda msoko amadzimadzi, mapaipi achitsulo opanda msoko a ma boilerndimapaipi achitsulo opanda msoko a mapaipi amafuta.
Nthawi yotumizira: Disembala-17-2024
