ASTM A234 WPB & WPC ọkpọkọ ọkpọkọ gụnyere elbows, tee, reducers
Ngwakọta kemịkalụ nke ASTM A234 WPB & WPC
| Ihe | Ọdịnaya,% | |
| 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 |
| Ọla kọpa [Cu] | ≤0.40 | ≤0.40 |
| Vanadium [V] | ≤0.08 | ≤0.08 |
* Carbon Equivalent [CE=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15] agaghị agafe 0.50 ma ga-akọ ya na MTC.
Ihe eji arụ ọrụ nke ASTM A234 WPB & WPC
| ASTM A234 ọkwa | Ike ntakiri, min. | Ike Mpụta, min. | Mgbatị %, min | |||
| ksi | MPa | ksi | MPa | Ogologo ogologo | Transverse | |
| WPB | 60 | 415 | 35 | 240 | 22 | 14 |
| WPC | 70 | 485 | 40 | 275 | 22 | 14 |
*1.WPB na WPC ọkpọkọ arụpụtara na efere ga-enwe opekempe elongation nke 17%.
*2.Ọ gwụla ma achọrọ ya, uru ike ike adịghị mkpa ka akọpụta ya.
Mepụta
Enwere ike ịme akwa akwa ASTM A234 carbon steel site na ọkpọkọ enweghị nkebi, ọkpọkọ welded ma ọ bụ efere site n'ịkpụzi ọrụ nke ịpị, ịkpọpu, extruding, ekwekọ, ịgbado ọkụ, igwe, ma ọ bụ site na nchikota abụọ ma ọ bụ karịa ọrụ ndị a.All welds gụnyere welds na ngwaahịa tubular nke a na-esi na ya mee akwa ga-eme ka ọ dị n'akụkụ ASME nke IX.A ga-eme ọgwụgwọ ikpo ọkụ mgbe weld gasịrị na 1100 ruo 1250°F[595 ruo 675°C] na nyocha redio ka a ga-eme mgbe usoro ịgbado ọkụ gachara.