ASTM A234 WPB & WPC cov yeeb nkab fittings suav nrog lub luj tshib, tee, reducers
Cov Tshuaj Lom Zem ntawm ASTM A234 WPB & WPC
| Khoom | Cov ntsiab lus,% | |
| ASTM A234 WPB | ASTM A234 WPC | |
| Cov pa roj 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 |
| Tooj liab [Cu] | ≤0.40 | ≤0.40 |
| Vanadium [V] | ≤0.08 | ≤0.08 |
*Tus Carbon Equivalent [CE=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15] yuav tsum tsis pub ntau tshaj 0.50 thiab yuav tsum tau tshaj tawm rau ntawm MTC.
Cov Khoom Siv Kho Tshuab ntawm ASTM A234 WPB & WPC
| ASTM A234 Qib | Lub zog tensile, min. | Lub zog tawm los, min. | Kev ntev%, feeb | |||
| ksi | MPa | ksi | MPa | Ntev ntev | Txoj kab hla | |
| WPB | 60 | 415 | 35 | 240 | 22 | 14 |
| WPC | 70 | 485 | 40 | 275 | 22 | 14 |
*1. Cov khoom siv yeeb nkab WPB thiab WPC uas ua los ntawm cov phaj yuav tsum muaj qhov ntev tsawg kawg nkaus ntawm 17%.
*2. Tshwj tsis yog tias yuav tsum tau ua, tus nqi hardness tsis tas yuav tsum tau tshaj tawm.
Kev Tsim Khoom
Cov yeeb nkab ASTM A234 carbon steel fittings yuav ua los ntawm cov yeeb nkab seamless, cov yeeb nkab welded lossis cov phaj los ntawm kev ua haujlwm ntawm kev nias, tho, extruding, bending, fusion welding, machining, lossis los ntawm kev sib xyaw ua ke ntawm ob lossis ntau dua cov haujlwm no. Txhua qhov welds suav nrog welds hauv cov khoom tubular uas cov fittings tau ua yuav tsum ua raws li ASME Seem IX. Kev kho cua sov tom qab vuam ntawm 1100 txog 1250 ° F [595 txog 675 ° C] thiab kev kuaj mob radiographic yuav tsum tau ua tom qab cov txheej txheem vuam.