ASTM A252 chiyero chakanyatsogadzirirwa kushandiswa nepombi murwi simbi tubing.
ASTM A252 inoshanda kumapaipi epombi umo silinda yesimbi inoshanda senhengo yekusingaperi inotakura mutoro, kana segoko rekugadzira mirwi yekongiri yakakandwa.
Grade 2 neGrade 3 maviri emagiredhi aya.
A252 yakakamurwa kuita mamakisi matatu ane sequentially inonatsiridza michina zvivakwa.
Vaive: Grade 1, Grade 2, uyeGrade 3.
Giredhi 2 uye Giredhi 3 ndiwo anonyanya kushandiswa mamakisi muASTM A252, uye isu tinotsanangura zvimiro zvemagiredhi ese ari maviri zvakadzama anotevera.
ASTM A252inogona kugadzirwa isina musono, resistance welding, flash welding, kana fusion welding process.
Mumapombi murwi wepombi, machubhu esimbi asina musono anopa tsigiro yakanakisa nekuda kwesimba rawo rakakura uye yunifomu yesimba hunhu.
Pamusoro pezvo, machubhu esimbi asina musono anogona kugadzirwa ane madziro akakora kwazvo, izvo zvinovatendera kuti vamire kushushikana kukuru, vachiwedzera kuvimbika kwavo muzvivakwa zvekutsigira.
Nekudaro, mapaipi esimbi asina musono anogona kugadzirwa kusvika pakureba kwe660 mm, izvo zvinoganhurira kushandiswa kwawo mumashandisirwo anoda mirwi yakakura yedhayamita.Muchiitiko ichi,LSAW(Longitudinal Submerged Arc Welded) uyeSSAW(Spiral Submerged Arc Welded) mapaipi esimbi anonyanya kubatsira.
Phosphorus yemukati haipfuure 0.050%.
Hapana zvimwe zvinhu zvinodiwa.
Kusimba Simba uye Goho Simba kana Goho Poindi
| Grade 2 | Grade 3 | |
| Kusimba simba, min | 60000 psi[415 MPa] | 60000 psi[415 MPa] |
| Goho poindi kana Goho simba, min | 35000 psi[240 MPa] | 45000 psi[310 MPa] |
Elongation
Tsanangudzo dzakajeka dzinogona kuwanikwa muASTM A252 Yakaunganidzwa Pipe Details.
| List | Ronga | Scope |
| Kurema | Theoretical Weight | 95 % - 125 % |
| Kunze Diameter | Yakatsanangurwa Kunze Diameter | ± 1 % |
| Kukora Kwemadziro | yakatsanangurwa zita remadziro ukobvu | zvin 87.5% |
| Single random urefu | 16 kusvika 25 ft [4.88 kusvika 7.62 m], inchi |
| Hurefu hwakapetwa kaviri | anopfuura 25 ft [7.62 m] neavhareji shoma ye35 ft [10,67 m] |
| Hurefu hwakafanana | kureba sekutaurwa kwazvinoitwa nemusiyano unobvumidzwa we ±1 mukati. |
ASTM A370: Nzira dzekuedza uye Tsanangudzo dzeMechanical Testing yeSimbi Zvigadzirwa;
ASTM A751: Nzira dzekuedza, Maitiro, uye Terminology yeKemikari Analysis yeSimbi Zvigadzirwa;
ASTM A941: Terminology ine chekuita neSimbi, Stainless Steel, Related Alloys, uye Ferroalloys;
ASTM E29: Dzidzira Kushandisa Akakosha Digits muTest Data Kuti Uone Kuenderana Nekutsanangurwa;
Botop Steel ndeyepamusoro-mhando yakashiswa kabhoni simbi pombi inogadzira uye mutengesi kubva kuChina, uye zvakare isina musono simbi pombi stockist, inokupa iwe wakasiyana-siyana wesimbi pombi mhinduro!
