ASTM A423 Qib 1 Hluav Taws Xob Welded Steel Yeeb Nkab yog cov yeeb nkab uas muaj corrosion-resistant alloy steel feem ntau siv rau hauv cov ntawv thov hauv qhov chaw tiv thaiv corrosion thiab kub kub.
Tshuaj muaj pes tsawg leeg
ASTM A423 Qib 1 Cov Hluav Taws Xob-Welded Steel Tubes
| Kev sib xyaw,% | |
| Khoom siv | Qib 1 |
| Carbon, max | 0.15 |
| Manganese | 0.55 max |
| Phosphorus | 0.06–0.16 |
| Sulfur, max | 0.060 |
| Silicon | 0.10 min |
| Tooj | 0.20–0.60 |
| Chromium | 0.24–1.31 |
| Nickel | 0.20–0.70 |
| Molybdenum | ... |
| Antimony | ... |
Tensile Requirements ntawm ASTM A423 Qib 1 Hluav Taws Xob-Welded Steel Tubes
| Khoom siv | Qib 1 |
| Tensile zog, min, ksi [MPa] | 60 [415] |
| Yield zog, min, ksi [MPa] | 37 [255] |
| Elongation hauv 2 nti lossis 50 hli, min, % | 25 |
| Rau longitudinal strip sim ib tug txiav rau txhua 1 ⁄ 32 nyob rau hauv. cov ntsiab lus yuav ua | 1.25 A |
Kev sim
Mechanical Tests yuav tsum tau
Tension Test-Ib qhov kev ntsuas nruj yuav ua rau ntawm ib qho qauv rau ntau yam tsis pub tshaj 50 lub raj.
Flattening Test-Ib qho kev sim flattening yuav ua rau cov qauv ntawm txhua qhov kawg ntawm ib lub raj tiav, tsis yog ib qho siv rau qhov kev sim flaring lossis flanging, los ntawm txhua qhov ntau.
Flange Test (ASTM A423 Qib 1 Welded Steel Tubes) - Ib qho kev sim flange yuav tsum tau ua rau ntawm cov qauv ntawm txhua qhov kawg ntawm ib lub raj tiav, tsis yog ib qho uas siv rau qhov kev sim flattening, los ntawm txhua qhov ntau.
Hardness Test-Brinell lossis Rockwell hardness tests yuav ua rau cov qauv ntawm ob lub raj los ntawm txhua qhov ntau
Rov qab Flattening Test-Rau welded raj, ib qho rov qab flattening xeem yuav tsum tau ua rau ntawm ib tug qauv ntawm txhua 1500 ft [460 m] ntawm tiav tubing.
Hydrostatic lossis Nondestructive Electric Test-Txhua lub raj yuav raug kuaj xyuas hydrostatic.
