ASTM A501 Kub-Formed Welded Structural Steel Pipe
Txheej txheem cej luam
ASTM A501 Cov Lus Qhia Tshwj Xeebyog tus qauv specification raukub- ua welded thiab seamless carbon steel structural tubingnyob rau hauv ib puag ncig zoo nkaus li. Nws yog tsim raukev siv cov qauvnyob rau hauv ib txwm atmospheric kub, muab ib tug lwm txoj rau qhov txias - tsim ASTM A500 yeeb nkab.
Qib & Mechanical Properties
| Qib | Tensile zog (min) | Yield zog (min) | Elongation hauv 2 "(min) |
|---|---|---|---|
| Qib A | 45,000 psi (310 MPa) | 33,000 psi (230 MPa) | 25% |
| Qib B | 58,000 psi (400 MPa) | 42,000 psi (290 MPa) | 23% |
Nco tseg:Qib B yog qhov feem ntau teev tseg.
Chemical Composition (Maximum%)
| Element | Qib A | Qib B |
|---|---|---|
| Cov pa roj carbon | 0.26 | 0.26 |
| Manganese | 1.35 | 1.35 |
| Phosphorus | 0.05 | 0.05 |
| Sulfur | 0.05 | 0.05 |
| Tooj liab (min) | 0.20* | 0.20* |
Qhov tsawg kawg nkaus tooj liab tsuas yog siv thaum txhim kho atmospheric corrosion kuj tau teev tseg.
Kev tsim khoom
CovERW (Electric Resistance Welded)yeeb nkab yog tsim los ntawmkub -formingntawm qhov kub siab, ua raws li siab - zaus vuam. Qhov no txawv ntawm ASTM A500, uas yog txias - tsim. Cov txheej txheem ua rau muaj cov yam ntxwv sib txawv thiab feem ntau yog siv rau cov tuab tuab dua -walled, loj dua kab ntawm cov kab ke.
Common Sizes & Tolerances (Tswj)
| Parameter | Hom kab mob | Ua siab ntev |
|---|---|---|
| Sab nraud txoj kab uas hla | 4.5 "mus rau 24" + | ± 0.5% ntawm OD |
| Phab ntsa Thickness | 0.188 "mus rau 1.000" + | +12.5%, -10% ntawm nominal |
| Ntev | Mus txog 65 ft | +1/4", -0" rau txiav ntev |
Kev xeem yuav tsum tau
Tensile Test:2 kev ntsuam xyuas ib qho cua sov, ib phab ntsa tuab.
Flattening Test:Rau kev txheeb xyuas ductility (2 rau ib qho).
Rov qab Flattening Test:Rau ERW yeeb nkab weld tshuaj xyuas (1 ib qho ntau).
Khoov Test:Rau cov khoom tsawg dua los yog sib npaug rau 0.180 "tuab.
Tsis muaj kev kuaj hydrostaticxav tau (structure application).
Cov ntawv thov tseem ceeb
Cov kab ke kab ke & cov ncej(kev tsim kho hnyav, siab -nce)
Bearing Piles
Hnyav Truss Cov Tswv Cuab
Industrial Support Structures
Nws yog feem ntau siv nyob rau hauv qhov chaw loj dua thiab cov phab ntsa tuab yog xav tau piv rau tus qauv txias - tsim A500 HSS.
Qhov sib piv tseem ceeb: A501 vs. A500
| Feature | ASTM A501 Cov Lus Qhia Tshwj Xeeb | ASTM A500 1 |
|---|---|---|
| Txheej txheem txheej txheem | Kub- tsim | Txias- tsim |
| Muaj Cov Duab | Round nkaus xwb | Hloov, Square, Rectangular |
| Hom Loj Loj | Loj OD, hnyav dua phab ntsa | Me me mus rau nruab nrab OD |
| Yield Strength (Qib B) | 42,000 psi | 46,000 psi |
| Siv dav | Heav kem, pawg | General structural (beams, trusses, railings) |
| Nto tiav | Mill nplai (kub-rolled) | Smoother (txias-kev xaiv dov) |
Cov ntsiab lus
ASTM A501 ERW yeeb nkab yog akub- tsim cov khoom siv hlauzoo tshaj plaws rauhnyav load-cov kab ke thiab cov tswv cuab compression. Nws qhov txiaj ntsig tseem ceeb yog qhov muaj cov kab loj loj nrog cov phab ntsa tuab ntawm cov txheej txheem kub -. Rau feem ntau cov qauv framing nrog square / rectangular seem lossis cov tswv cuab sib zog,ASTM A500 1yog feem ntau nyiam.
