Fitting pipa ASTM A234 WPB & WPC kalebu siku, tee, reducer
Komposisi Kimia ASTM A234 WPB & WPC
| Unsur | Isi, % | |
| ASTM A234 WPB | ASTM A234 WPC | |
| Karbon [C] | ≤0.30 | ≤0.35 |
| Mangan [Mn] | 0.29-1.06 | 0.29-1.06 |
| Fosfor [P] | ≤0.050 | ≤0.050 |
| Belerang [S] | ≤0.058 | ≤0.058 |
| Silikon [Si] | ≥0.10 | ≥0.10 |
| Kromium [Cr] | ≤0.40 | ≤0.40 |
| Molibdenum [Mo] | ≤0.15 | ≤0.15 |
| Nikel [Ni] | ≤0.40 | ≤0.40 |
| Tembaga [Cu] | ≤0.40 | ≤0.40 |
| Vanadium [V] | ≤0.08 | ≤0.08 |
*Padanan Karbon [CE=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15] ora kena luwih saka 0,50 lan kudu dilaporake ing MTC.
Sifat Mekanik ASTM A234 WPB & WPC
| Kelas ASTM A234 | Kekuwatan Tarik, min. | Kekuatan Asil, min. | Perpanjangan %, min | |||
| ksi | MPa | ksi | MPa | Bujur | Melintang | |
| WPB | 60 | 415 | 35 | 240 | 22 | 14 |
| WPC | 70 | 485 | 40 | 275 | 22 | 14 |
*1. Piranti sambungan pipa WPB lan WPC sing digawe saka pelat kudu duwe pemanjangan minimal 17%.
*2. Kajaba dibutuhake, nilai atose ora perlu dilaporake.
Pabrik
Fitting pipa baja karbon ASTM A234 bisa digawe saka pipa tanpa sambungan, pipa sing dilas utawa pelat kanthi operasi mbentuk kaya mencet, nusuk, ekstrusi, mbengkongake, ngelas fusi, mesin, utawa kanthi kombinasi saka rong operasi utawa luwih kasebut. Kabeh las kalebu las ing produk tubular sing digawe fitting kudu digawe miturut ASME Bagian IX. Perlakuan panas pasca-las ing suhu 1100 nganti 1250°F [595 nganti 675°C] lan pemeriksaan radiografi kudu ditindakake sawise proses pengelasan.


