Usha Nuugista ee Warshadaha Shiinaha
C-class tayo sare leh ushii kaarboonka ee tayada sare leh waxaa sameeyay SSYD-1 (oo u dhiganta AISI1526), oo leh xoog dhexdhexaad ah, caag wanaagsan, wajiga ka soo horjeeda daxalka iyo waxyaabo kale oo gaar ah oo loogu talagalay deegaanka dhexdhexaad ah acidic iyada oo aan keenin dillaaca walaaca sulfide.Nuugista darajada D waxay ka samaysan tahay birta qaabdhismeed sare-Cr-Mo alloy 30CrMoA (oo u dhiganta AISI 4130), oo leh xoog sare, caag wanaagsan, nolol dheer iyo sifooyin kale, oo lagu dabaqi karo deegaanka aan daxalka ahayn ama wax yar oo daxalka ah ee ceelasha qoto dheer.Ulaha nuugista darajada K waxay ka samaysan yihiin qaab-dhismeed heer sare ah oo Ni-Mo alloy ah 20Ni2MoA (oo u dhiganta AISI 4620), oo leh xoog dhexdhexaad ah, ductility wanaagsan, caabbinta daxalka iyo sifooyin kale, oo ku habboon in loo isticmaalo culeysyo fudud iyo ceelal gacmeedyo joogitaanka ee warbaahinta daxalaysa.
Marka loo eego naqshadaynta heerka API, baararka sinkerku waxay ka samaysan yihiin bir kaarboon ah oo tayo sare leh ama bir daawaha ah.Labada darafba waxay leeyihiin dunta dibadda oo isku mid ah.Marka loo eego heerka caadiga ah, waxa loo qaybiyaa 1 iyo 2, kuwaas oo lagu xidhi karo cidhifka sare ee usha si fiican, ama qaybta hoose ee saliidda sidoo kale.
| Cabbirka (In.) | Rod D (In.) | Thread D (In.) | Dhererka | Dhexroorka garabka biinanka (Mm) | Dhererka biinka (Mm) | Dhererka Wrench Square (Mm) | Balaadhka Wrench Square (Mm) |
| 5/8 | 5/8 | 15/16 | 2/4/6/8/ | 31.8 | 31.75 | ≧31.8 | 22.20 |
| 3/4 | 3/4 | 1-1/16 | 38.10 | 36.50 | 25.40 | ||
| 7/8 | 7/8 | 1-3/16 | 41.30 | 41.28 | |||
| 1 | 1 | 1-3/8 | 50.80 | 47.63 | ≧38.1 | 33.30 | |
| 1-1/8 | 1-1/8 | 1-9/16 | 57.20 | 53.98 | ≧41.3 | 38.10 |
| Darajo | Awood Wax-soosaar (Mpa) | Xoogga Jilitaanka Rm (Mpa) | Kordhinta boqolleyda A(%) | Boqolkiiba wax-soo-saarka aagga Z(%) | Adagaanshaha Saamaynta Ακ(J/Cm2) |
| C | ≧414 | 620-793 | ≧12 | ≧55 | ≧70 |
| D | ≧620 | 794-965 | ≧10 | ≧50 | ≧58.8 |
| K | ≧414 | 620-793 | ≧12 | ≧55 | ≧70 |
| Darajo | Xoogga Jilitaanka Rm (Mpa) | Kordhinta boqolleyda A(%) | Boqolkiiba ka-soo-baxa ee Aagga |
| 1 | 448-620 | ≧15 | ≧55 |
| 2 | 621-794 | ≧12 | ≧50 |
