ASTM A234 WPB & WPC kayan aikin bututu gami da gwiwar hannu, Tee, masu ragewa
Abubuwan Kemikal na ASTM A234 WPB & WPC
Abun ciki | Abun ciki, % | |
ASTM A234 WPB | ASTM A234 WPC | |
Carbon [C] | ≤0.30 | ≤0.35 |
Manganese [Mn] | 0.29-1.06 | 0.29-1.06 |
Phosphorus [P] | ≤0.050 | ≤0.050 |
Sulfur [S] | ≤0.058 | ≤0.058 |
Silicon [Si] | ≥0.10 | ≥0.10 |
Chromium [Cr] | ≤0.40 | ≤0.40 |
Molybdenum [Mo] | ≤0.15 | ≤0.15 |
Nickel [Ni] | ≤0.40 | ≤0.40 |
Copper [Cu] | ≤0.40 | ≤0.40 |
Vanadium [V] | ≤0.08 | ≤0.08 |
*Madaidaicin Carbon [CE=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15] bazai wuce 0.50 ba kuma za'a bada rahoto akan MTC.
Kayayyakin Injini na ASTM A234 WPB & WPC
ASTM A234 | Ƙarfin Jiki, min. | Ƙarfin Haɓaka, min. | Tsawaita %, min | |||
ksi | MPa | ksi | MPa | Tsayi | Canza | |
WPB | 60 | 415 | 35 | 240 | 22 | 14 |
WPC | 70 | 485 | 40 | 275 | 22 | 14 |
*1.Kayan aikin bututun WPB da WPC da aka ƙera daga faranti za su sami ƙaramin haɓakar 17%.
*2.Sai dai in an buƙata, ƙimar taurin baya buƙatar bayar da rahoto.
Kerawa
Ana iya yin kayan aikin bututun ƙarfe na ƙarfe na ASTM A234 daga bututu marasa ƙarfi, bututu masu walda ko faranti ta hanyar tsara ayyukan latsawa, huda, fiɗa, lankwasawa, waldawar haɗaɗɗiya, mashin ɗin, ko ta hanyar haɗin biyu ko fiye da waɗannan ayyukan.Duk welds ciki har da walda a cikin samfuran tubular waɗanda aka yi kayan aiki daga gare su za a yi su daidai da Sashe na ASME IX.Maganin zafi bayan walda a 1100 zuwa 1250°F[595 zuwa 675°C] kuma za a yi gwajin hoto bayan aikin walda.