ASTM A252, ASTM A252: Txuj Specification rau Welded thiab Seamless Steel Pipes.
Qhov kev qhia tshwj xeeb no suav nrog cov nominal (nruab nrab) phab ntsa steel yeeb nkab pawg ntawm cov duab cylindrical thiab siv rau cov yeeb nkab pawg uas lub tog raj kheej steel ua cov neeg nqa khoom mus tas li, lossis ua lub plhaub los tsim cov pob zeb hauv qhov chaw.Cov yeeb nkab yog tsim los ua ob qho tib si welded thiab seamless khoom.
Navigation Khawm
ASTM A252 Qib
ASTM A252 qib yog cais raws li Qib 1 Qib 2 thiabQib 3.
Raw Material Production Process
Cov hlau yuav tsum tau ua los ntawm ib los yog ntau tshaj ntawm cov txheej txheem hauv qab no: qhib-hearth, yooj yim-oxygen, lossis hluav taws xob rauv taws.
Khoom siv thiab kev tsim khoom
Cov pawg yuav tsum tau ua los ntawm seamless, hluav taws xob kuj welded, flash welded, los yog fusion welded txheej txheem.
Cov seams ntawm welded yeeb nkab pawg yuav tsum yog longitudinal, helical-butt, los yog helical-lap.
ASTM A252 Tshuaj muaj pes tsawg leeg
Txoj kev sim: ASTM A751.
Cov hlau yuav tsum tsis pub tshaj 0.050% phosphorous.Qhov no yog vim tias qib phosphorus siab yuav ua rau cov hlau ua nkig ntawm qhov kub thiab txias, txo cov tawv tawv ntawm cov khoom.
ASTM A252 specification tsis muaj kev txwv rau cov tshuaj muaj pes tsawg leeg: qhov no yog vim ASTM A252 feem ntau siv rau cov qauv siv, tshwj xeeb tshaj yog cov khoom siv thauj khoom, qhov twg lub cev muaj zog (xws li lub zog tawm los, lub zog tensile, thiab elongation) yog qhov tseem ceeb tshaj li tshuaj muaj pes tsawg leeg. .Cov khoom ntawm lub cev no tuaj yeem ua tiav los ntawm kev tsim khoom tsim nyog thiab kev kho cua sov yam tsis muaj kev tswj hwm nruj ntawm cov tshuaj muaj pes tsawg leeg uas tsis yog phosphorus.
ASTM A252 Tensile Requirements
Txoj kev sim: ASTM A370.
Hydrostatic Pressure Test
Yog vim li cas ASTM A52 tsis qhia txog kev ntsuas hydraulic feem ntau yog vim cov ntawv thov cov yam ntxwv thiab cov qauv tsim ntawm cov kav dej no.
Rau cov yeeb nkab steel nyob rau hauv ASTM A252 specification, lub hom phiaj tsim qauv yog los tiv thaiv axial loads, tsis yog sab hauv.Qhov no yog qhov sib txawv ntawm cov kav dej rau kev thauj mus los ntawm cov kua lossis cov pa roj, xws li cov hauv qab API 5L specification, uas yuav tsum raug kuaj ncaj qha ntawm lub siab sab hauv kom ntseeg tau tias nws nruj thiab lub zog.
Dimensional Tolerances
| Dimensional kam rau ua | ||
| Sau npe | xaiv | thaj tsam |
| Qhov hnyav | Theoretical Nyhav | 95% -125% |
| Txoj kab uas hla | Specified Sab Nraud Diameter | ± 1% |
| Thickness | teev nominal phab ntsa thickness | qis tshaj 87.5% |
| Ntev | Ib leeg random lengths | 16 mus rau 25 ft [4.88 rau 7.62 m] |
| Muab ob npaug rau random lengths | tshaj 25 ft [7.62 m] nrog qhov nruab nrab yam tsawg kawg nkaus ntawm 35 ft [10.67 m] | |
| Uniform ntev | ntev raws li tau teev tseg nrog kev tso cai hloov pauv ntawm ± 1 hauv. | |
| Beveled | Cov yeeb nkab yuav tsum tau muab tso rau hauv qhov xaus: Thaum xaus yog xaiv raws li beveled | 30 ° - 35 ° |
Pipe Weight Charts
Yog xav paub ntxiv txog lubdaim duab qhia qhov hnyav thiab lub sijhawmnyob rau hauv tus qauv,thov nias ntawm no!
| Sab nraud txoj kab uas hla | Nominal Phab Ntsa Thickness | Nyhav ib Unit Lengths | |||
| IN | MM | IN | MM | IN | MM |
| 6 | 152.4 ib | 0.134 ib | 3.40 Nws | 8.40 Nws | 12.50 Nws |
| 6 | 152.4 ib | 0.141 ib | 3.58 ib | 8.83 ib | 13.10 Nws |
| 6 | 152.4 ib | 0.156 ib | 3.96 ib | 9.75 ib | 14.50 Nws |
| 6 | 152.4 ib | 0.164 ib | 4.17 ib | 10.23 Nws | 15.20 Nws |
| 6 | 152.4 ib | 0.172 ib | 4.37 ib | 10.72 Nws | 16.00 Nws |
| 8 | 203.2 ib | 0.141 ib | 3.58 ib | 11.85 Nws | 17.60 Nws |
| 8 | 203.2 ib | 0.172 ib | 4.37 ib | 14.39 Nws | 21.40 Nws |
| 8 5/8 | 219.1 ib | 0.109 ib | 2.77 ib | 9.92 ib | 14.80 Nws |
| 8 5/8 | 219.1 ib | 0.141 ib | 3.58 ib | 12.79 Nws | 19.00 Nws |
| 8 5/8 | 219.1 ib | 0.172 ib | 4.37 ib | 15.54 Nws | 23.10 Nws |
| 8 5/8 | 219.1 ib | 0.188 ib | 4.78 ib | 16.96 Nws | 25.30 Nws |
| 8 5/8 | 219.1 ib | 0.203 ib | 5.16 | 18.28 Nws | 27.20 Nws |
| 8 5/8 | 219.1 ib | 0.219 ib | 5.56 ib | 19.68 Nws | 29.30 Nws |
| 8 5/8 | 219.1 ib | 0.250 Nws | 6.35 Nws | 22.38 Nws | 33.30 Nws |
| 8 5/8 | 219.1 ib | 0.277 ib | 7.04 ib | 24.72 Nws | 36.80 Nws |
| 8 5/8 | 219.1 ib | 0.312 ib | 7.92 ib | 27.73 Nws | 41.20 Nws |
| 8 5/8 | 219.1 ib | 0.322 ib | 8.18 Nws | 28.58 Nws | 42.50 Nws |
| 8 5/8 | 219.1 ib | 0.344 ib | 8.74 ib | 30.45 Nws | 45.30 Nws |
| 8 5/8 | 219.1 ib | 0.375 ib | 9.53 ib | 33.07 Nws | 49.30 Nws |
| 8 5/8 | 219.1 ib | 0.438 ib | 11.13 Nws | 38.33 Nws | 57.10 Nws |
| 8 5/8 | 219.1 ib | 0.500 Nws | 12.70 Nws | 43.43 ib | 64.60 ib |
| 10 | 254.0 Nws | 0.109 ib | 2.77 ib | 11.53 Nws | 17.20 Nws |
| 10 | 254.0 Nws | 0.120 Nws | 3.05 Nws | 12.67 Nws | 18.90 Nws |
| 10 | 254.0 Nws | 0.134 ib | 3.40 Nws | 14.13 Nws | 21.00 Nws |
| 10 | 254.0 Nws | 0.141 ib | 3.58 ib | 14.86 Nws | 22.10 Nws |
| 10 | 254.0 Nws | 0.150 Nws | 3.81 ib | 15.79 Nws | 23.50 Nws |
| 10 | 254.0 Nws | 0.164 ib | 4.17 ib | 17.24 Nws | 25.70 Nws |
| 10 | 254.0 Nws | 0.172 ib | 4.37 ib | 18.07 Nws | 26.90 Nws |
| 10 | 254.0 Nws | 0.179 ib | 4.55 ib | 18.79 Nws | 28.00 Nws |
| 10 | 254.0 Nws | 0.188 ib | 4.78 ib | 19.72 Nws | 29.40 Nws |
| 10 | 254.0 Nws | 0.203 ib | 5.16 | 21.26 Nws | 31.70 Nws |
| 10 | 254.0 Nws | 0.219 ib | 5.56 ib | 22.90 Nws | 34.10 Nws |
| 10 | 254.0 Nws | 0.230 Nws | 5.84 ib | 24.02 Nws | 35.70 Nws |
| 10 | 254.0 Nws | 0.250 Nws | 6.35 Nws | 26.06 Nws | 38.80 Nws |
| 10 3/4 ib | 273.1 ib | 0.109 ib | 2.77 ib | 12.40 Nws | 18.50 Nws |
| 10 3/4 ib | 273.1 ib | 0.120 Nws | 3.05 Nws | 13.64 Nws | 20.30 Nws |
| 10 3/4 ib | 273.1 ib | 0.134 ib | 3.40 Nws | 15.21 Nws | 22.60 Nws |
| 10 3/4 ib | 273.1 ib | 0.141 ib | 3.58 ib | 15.99 Nws | 23.80 Nws |
| 10 3/4 ib | 273.1 ib | 0.150 Nws | 3.81 ib | 17.00 Nws | 25.30 Nws |
| 10 3/4 ib | 273.1 ib | 0.164 ib | 4.17 ib | 18.56 Nws | 27.70 Nws |
| 10 3/4 ib | 273.1 ib | 0.172 ib | 4.37 ib | 19.45 Nws | 29.00 Nws |
| 10 3/4 ib | 273.1 ib | 0.179 ib | 4.55 ib | 20.23 Nws | 30.10 Nws |
| 10 3/4 ib | 273.1 ib | 0.188 ib | 4.78 ib | 21.23 Nws | 31.60 Nws |
| 10 3/4 ib | 273.1 ib | 0.203 ib | 5.16 | 22.89 Nws | 34.10 Nws |
| 10 3/4 ib | 273.1 ib | 0.219 ib | 5.56 ib | 24.65 Nws | 36.70 Nws |
| 10 3/4 ib | 273.1 ib | 0.230 Nws | 5.84 ib | 25.87 Nws | 38.50 Nws |
| 10 3/4 ib | 273.1 ib | 0.250 Nws | 6.35 Nws | 28.06 Nws | 41.80 Nws |
| 10 3/4 ib | 273.1 ib | 0.279 ib | 7.09 ib | 31.23 Nws | 46.50 Nws |
| 10 3/4 ib | 273.1 ib | 0.307 ib | 7.80 ib | 34.27 Nws | 51.00 Nws |
| 10 3/4 ib | 273.1 ib | 0.344 ib | 8.74 ib | 38.27 Nws | 57.00 Nws |
| 10 3/4 ib | 273.1 ib | 0.365 ib | 9.27 ib | 40.52 ib | 60.30 Nws |
| 10 3/4 ib | 273.1 ib | 0.438 ib | 11.13 Nws | 48.28 Nws | 71.90 ib |
| 10 3/4 ib | 273.1 ib | 0.500 Nws | 12.70 Nws | 54.79 ib | 81.60 ib |
| 12 | 304.8 ib | 0.134 ib | 3.40 Nws | 17.00 Nws | 25.30 Nws |
| 12 | 304.8 ib | 0.141 ib | 3.58 ib | 17.87 Nws | 26.60 Nws |
| 12 | 304.8 ib | 0.150 Nws | 3.81 ib | 19.00 Nws | 28.30 Nws |
| 12 | 304.8 ib | 0.164 ib | 4.17 ib | 20.75 Nws | 30.90 Nws |
| 12 | 304.8 ib | 0.172 ib | 4.37 ib | 21.75 Nws | 32.40 Nws |
| 12 | 304.8 ib | 0.179 ib | 4.55 ib | 22.62 Nws | 33.70 Nws |
| 12 | 304.8 ib | 0.188 ib | 4.78 ib | 23.74 Nws | 35.40 Nws |
| 12 | 304.8 ib | 0.203 ib | 5.16 | 25.60 Nws | 38.10 Nws |
| 12 | 304.8 ib | 0.219 ib | 5.56 ib | 27.58 Nws | 41.00 Nws |
| 12 | 304.8 ib | 0.230 Nws | 5.84 ib | 28.94 Nws | 43.10 Nws |
| 12 | 304.8 ib | 0.250 Nws | 6.35 Nws | 31.40 Nws | 46.70 ib |
| 12 | 304.8 ib | 0.281 ib | 7.14 ib | 35.20 Nws | 52.40 Nws |
| 12 | 304.8 ib | 0.312 ib | 7.92 ib | 38.98 ib | 58.00 Nws |
| 12 3/4 ib | 323.9 ib | 0.109 ib | 2.77 ib | 14.73 Nws | 21.90 Nws |
| 12 3/4 ib | 323.9 ib | 0.134 ib | 3.40 Nws | 18.07 Nws | 26.90 Nws |
| 12 3/4 ib | 323.9 ib | 0.141 ib | 3.58 ib | 19.01 Nws | 28.30 Nws |
| 12 3/4 ib | 323.9 ib | 0.150 Nws | 3.81 ib | 20.20 Nws | 30.10 Nws |
| 12 3/4 ib | 323.9 ib | 0.164 ib | 4.17 ib | 22.07 Nws | 32.90 Nws |
| 12 3/4 ib | 323.9 ib | 0.172 ib | 4.37 ib | 23.13 Nws | 34.40 Nws |
| 12 3/4 ib | 323.9 ib | 0.179 ib | 4.55 ib | 24.05 Nws | 35.80 Nws |
| 12 3/4 ib | 323.9 ib | 0.188 ib | 4.78 ib | 25.25 Nws | 37.60 Nws |
| 12 3/4 ib | 323.9 ib | 0.203 ib | 5.16 | 27.23 Nws | 40.60 Nws |
| 12 3/4 ib | 323.9 ib | 0.219 ib | 5.56 ib | 29.34 Nws | 43.70 Nws |
| 12 3/4 ib | 323.9 ib | 0.230 Nws | 5.84 ib | 30.78 Nws | 45.80 Nws |
| 12 3/4 ib | 323.9 ib | 0.250 Nws | 6.35 Nws | 33.41 Nws | 49.70 ib |
| 12 3/4 ib | 323.9 ib | 0.281 ib | 7.14 ib | 37.46 ib | 55.80 ib |
| 12 3/4 ib | 323.9 ib | 0.312 ib | 7.93 ib | 41.48 Nws | 61.80 ib |
| 12 3/4 ib | 323.9 ib | 0.330 Nws | 8.38 ib | 43.81 ib | 65.20 Nws |
| 12 3/4 ib | 323.9 ib | 0.344 ib | 8.74 ib | 45.62 ib | 67.90 ib |
| 12 3/4 ib | 323.9 ib | 0.375 ib | 9.53 ib | 49.61 ib | 73.90 ib |
| 12 3/4 ib | 323.9 ib | 0.438 ib | 11.13 Nws | 57.65 ib | 85.80 ib |
| 12 3/4 ib | 323.9 ib | 0.500 Nws | 12.70 Nws | 65.48 ib | 97.50 ib |
| 14 | 355.6 ib | 0.134 ib | 3.40 Nws | 19.86 Nws | 29.50 Nws |
| 14 | 355.6 ib | 0.141 ib | 3.58 ib | 20.89 Nws | 31.10 Nws |
| 14 | 355.6 ib | 0.150 Nws | 3.81 ib | 22.21 Nws | 33.10 Nws |
| 14 | 355.6 ib | 0.164 ib | 4.17 ib | 24.26 Nws | 36.10 Nws |
| 14 | 355.6 ib | 0.172 ib | 4.37 ib | 25.43 Nws | 37.90 Nws |
| 14 | 355.6 ib | 0.179 ib | 4.55 ib | 26.45 Nws | 39.40 Nws |
| 14 | 355.6 ib | 0.188 ib | 4.78 ib | 27.76 Nws | 41.40 Nws |
| 14 | 355.6 ib | 0.203 ib | 5.16 | 29.94 Nws | 44.60 Nws |
| 14 | 355.6 ib | 0.219 ib | 5.56 ib | 32.26 Nws | 48.00 Nws |
| 14 | 355.6 ib | 0.230 Nws | 5.84 ib | 33.86 ib | 50.40 Nws |
| 14 | 355.6 ib | 0.250 Nws | 6.35 Nws | 36.75 ib | 54.70 ib |
| 14 | 355.6 ib | 0.281 ib | 7.14 ib | 41.21 Nws | 61.40 Nws |
| 14 | 355.6 ib | 0.312 ib | 7.93 ib | 45.65 ib | 68.00 Nws |
| 14 | 355.6 ib | 0.344 ib | 8.87 ib | 50.22 Nws | 74.80 ib |
| 14 | 355.6 ib | 0.375 ib | 9.53 ib | 54.62 ib | 81.30 Nws |
| 14 | 355.6 ib | 0.438 ib | 11.13 Nws | 63.50 Nws | 94.60 ib |
| 14 | 355.6 ib | 0.469 ib | 11.91 Nws | 67.84 ib | 100.90 Nws |
| 14 | 355.6 ib | 0.500 Nws | 12.70 Nws | 72.16 ib | 107.50 Nws |
| 16 | 406.4 ib | 0.134 ib | 3.40 Nws | 22.73 Nws | 33.80 Nws |
| 16 | 406.4 ib | 0.141 ib | 3.58 ib | 23.90 Nws | 35.60 Nws |
| 16 | 406.4 ib | 0.150 Nws | 3.81 ib | 25.42 Nws | 37.80 Nws |
| 16 | 406.4 ib | 0.164 ib | 4.17 ib | 27.76 Nws | 41.40 Nws |
| 16 | 406.4 ib | 0.172 ib | 4.37 ib | 29.10 Nws | 43.30 Nws |
| 16 | 406.4 ib | 0.179 ib | 4.55 ib | 30.27 Nws | 45.10 Nws |
| 16 | 406.4 ib | 0.188 ib | 4.78 ib | 31.78 Nws | 47.30 Nws |
| 16 | 406.4 ib | 0.203 ib | 5.16 | 34.28 Nws | 51.10 Nws |
| 16 | 406.4 ib | 0.219 ib | 5.56 ib | 36.95 ib | 55.00 Nws |
| 16 | 406.4 ib | 0.230 Nws | 5.84 ib | 38.77 ib | 57.70 ib |
| 16 | 406.4 ib | 0.250 Nws | 6.35 Nws | 42.09 Nws | 62.60 Nws |
| 16 | 406.4 ib | 0.281 ib | 7.14 ib | 47.22 Nws | 70.30 Nws |
| 16 | 406.4 ib | 0.312 ib | 7.93 ib | 52.32 Nws | 77.90 ib |
| 16 | 406.4 ib | 0.344 ib | 8.87 ib | 57.57 ib | 87.00 Nws |
| 16 | 406.4 ib | 0.375 ib | 9.53 ib | 62.64 ib | 93.50 Nws |
| 16 | 406.4 ib | 0.438 ib | 11.13 Nws | 72.86 ib | 108.50 Nws |
| 16 | 406.4 ib | 0.469 ib | 11.91 Nws | 77.87 ib | 115.90 Nws |
| 16 | 406.4 ib | 0.500 Nws | 12.70 Nws | 82.85 ib | 123.30 Nws |
| 18 | 457.2 ib | 0.141 ib | 3.58 ib | 26.92 Nws | 40.00 Nws |
| 18 | 457.2 ib | 0.172 ib | 4.37 ib | 32.78 Nws | 48.80 Nws |
| 18 | 457.2 ib | 0.188 ib | 4.78 ib | 35.80 Nws | 53.30 Nws |
| 18 | 457.2 ib | 0.219 ib | 5.56 ib | 41.63 ib | 61.90 ib |
| 18 | 457.2 ib | 0.230 Nws | 5.84 ib | 43.69 ib | 65.00 Nws |
| 18 | 457.2 ib | 0.250 Nws | 6.35 Nws | 47.44 ib | 70.60 ib |
| 18 | 457.2 ib | 0.281 ib | 7.14 ib | 53.23 Nws | 79.20 Nws |
| 18 | 457.2 ib | 0.312 ib | 7.93 ib | 58.99 ib | 87.90 ib |
| 18 | 457.2 ib | 0.344 ib | 8.74 ib | 64.93 ib | 96.70 ib |
| 18 | 457.2 ib | 0.375 ib | 9.53 ib | 70.65 ib | 105.20 Nws |
| 18 | 457.2 ib | 0.438 ib | 11.13 Nws | 82.23 ib | 122.40 Nws |
| 18 | 457.2 ib | 0.469 ib | 11.91 Nws | 87.89 ib | 130.80 Nws |
| 18 | 457.2 ib | 0.500 Nws | 12.70 Nws | 93.54 ib | 139.20 Nws |
| 20 | 508.0 ib | 0.141 ib | 3.58 ib | 29.93 Nws | 44.50 Nws |
| 20 | 508.0 ib | 0.172 ib | 4.37 ib | 36.46 ib | 54.30 Nws |
| 20 | 508.0 ib | 0.188 ib | 4.78 ib | 39.82 ib | 59.30 Nws |
| 20 | 508.0 ib | 0.219 ib | 5.56 ib | 46.31 Nws | 68.90 ib |
| 20 | 508.0 ib | 0.250 Nws | 6.35 Nws | 52.78 ib | 78.60 ib |
| 20 | 508.0 ib | 0.281 ib | 7.14 ib | 59.23 Nws | 88.20 Nws |
| 20 | 508.0 ib | 0.312 ib | 7.93 ib | 65.66 ib | 97.80 ib |
| 20 | 508.0 ib | 0.344 ib | 8.87 ib | 72.28 ib | 107.60 Nws |
| 20 | 508.0 ib | 0.375 ib | 9.53 ib | 78.67 ib | 117.20 Nws |
| 20 | 508.0 ib | 0.438 ib | 11.13 Nws | 91.59 ib | 136.40 Nws |
| 20 | 508.0 ib | 0.469 ib | 11.91 Nws | 97.92 ib | 145.70 Nws |
| 20 | 508.0 ib | 0.500 Nws | 12.70 Nws | 104.23 Nws | 155.10 Nws |
| 22 | 558.8 ib | 0.172 ib | 4.37 ib | 40.13 Nws | 59.80 Nws |
| 22 | 558.8 ib | 0.188 ib | 4.78 ib | 43.84 ib | 65.30 Nws |
| 22 | 558.8 ib | 0.219 ib | 5.56 ib | 50.99 ib | 75.90 ib |
| 22 | 558.8 ib | 0.250 Nws | 6.35 Nws | 58.13 Nws | 86.50 ib |
| 22 | 558.8 ib | 0.281 ib | 7.14 ib | 65.24 ib | 97.10 Nws |
| 22 | 558.8 ib | 0.312 ib | 7.93 ib | 72.34 ib | 107.70 Nws |
| 22 | 558.8 ib | 0.375 ib | 9.53 ib | 86.69 ib | 129.10 Nws |
| 22 | 558.8 ib | 0.438 ib | 11.13 Nws | 100.96 Nws | 150.30 Nws |
| 22 | 558.8 ib | 0.469 ib | 11.91 Nws | 107.95 Nws | 160.60 Nws |
| 22 | 558.8 ib | 0.500 Nws | 12.70 Nws | 114.92 Nws | 171.00 Nws |
| 24 | 609.6 ib | 0.172 ib | 4.37 ib | 43.81 ib | 65.20 Nws |
| 24 | 609.6 ib | 0.188 ib | 4.78 ib | 47.86 ib | 71.30 Nws |
| 24 | 609.6 ib | 0.219 ib | 5.56 ib | 55.67 ib | 82.80 ib |
| 24 | 609.6 ib | 0.250 Nws | 6.35 Nws | 63.47 ib | 94.50 ib |
| 24 | 609.6 ib | 0.281 ib | 7.14 ib | 71.25 Nws | 106.10 Nws |
| 24 | 609.6 ib | 0.312 ib | 7.93 ib | 79.01 Nws | 117.70 Nws |
| 24 | 609.6 ib | 0.375 ib | 9.53 ib | 94.71 ib | 141.00 Nws |
| 24 | 609.6 ib | 0.438 ib | 11.13 Nws | 110.32 Nws | 164.30 Nws |
| 24 | 609.6 ib | 0.469 ib | 11.91 Nws | 117.98 Nws | 175.60 Nws |
| 24 | 609.6 ib | 0.500 Nws | 12.70 Nws | 125.62 Nws | 186.90 Nws |
Yeeb Nkab Defects
1. Nto imperfections muaj qhov tob tsis tshaj 12.5% ntawm qhov teev nominal phab ntsa thickness yuav tsum tau.
Nws yuav tsum raug tso cai los tsim kom muaj qhov tob ntawm qhov tsis zoo li no los ntawm kev sib tsoo lossis ua ntaub ntawv.
2. Nto imperfections uas muaj qhov tob tshaj li ntawm 12.5% ntawm qhov teev nominal phab ntsa thickness yuav tsum raug xam tias yog qhov tsis xws luag.
Nws yuav tsum raug tso cai rau qhov tsis xws luag tsis tob tshaj 33.3% ntawm cov txheej txheem nominal phab ntsa tuab yuav tsum tau kho los ntawm vuam, yog tias qhov tsis xws luag raug tshem tawm ua ntej vuam.
Khoom siv
ASTM A252 Qib 1 Daim Ntawv Thov
Lightly loaded tej yaam num nyob rau hauv cov av tej yam kev mob, xws li cov hauv paus rau cov tsev me me los yog cov qauv.
Lub hauv paus rau cov qauv ib ntus xws li kev txhawb nqa kev tsim kho lossis kev txuas hniav ib ntus.
Kev kho ib puag ncig hauv cov av zoo uas tsis tas yuav muaj kev ntxhov siab ntau dhau.
ASTM A252 Qib 2 Daim Ntawv Thov:
Engineering tej yaam num uas yuav tsum tau nruab nrab loading, nrog rau cov hauv paus rau ntau-zaj dab neeg cov tsev lossis cov chaw.
Txuas hniav, piers, thiab ntug dej hiav txwv tej yaam num nyob rau hauv nruab nrab nyuaj av tej yam kev mob.
Siv nyob rau hauv tej yam kev mob nrog ib co degree ntawm kev pheej hmoo ntawm chemical corrosion los yog yaig.
ASTM A252 Qib 3 Daim Ntawv Thov:
Tej yaam num tseem ceeb nyob rau hauv lub loaded heev, complex av tej yam kev mob xws li cov choj loj, high-sawv vaj tse, thiab loj industrial chaw.
Cov chaw muaj kev pheej hmoo siab, xws li cov qauv tsim muaj kev yaig hnyav, tshuaj lom neeg corrosion, lossis huab cua huab cua.
Cov dej num loj hauv ntug dej hiav txwv, xws li cov hauv paus rau cov dej sib sib zog nqus dej, cov dej tawg loj, thiab cov roj thiab roj.
Cov txheej txheem ntsig txog
ASTM A252 Qib 1
TS EN 10219 S235JRH - Cold-formed welded qauv steel raj
TS EN 10219 S235JRH - Ntu 235JRH-Tshooj Cold-formed welded thiab seamless steel raj thiab cov kav dej rau kev tsim qauv.
CSA G40.21 300W - Cov qauv zoo steel.
AS/NZS 1163 C250L0 - Cold-formed structural steel hlab.
GB / T 3091 Q235B - Welded steel yeeb nkab rau kev thauj mus los ntawm cov dej tsis tshua muaj siab.
JIS G3444 STK400 - Carbon steel kav rau kev siv cov qauv.
IS 4923 YST 210 - Hollow steel kav rau kev tsim qauv.
GOST 10704-91 - Hluav taws xob welded steel kav.
TS EN ISO 11960 Cov kav hlau hlau rau kev lag luam roj thiab roj
ASTM A36 - Cov Qauv Carbon Steel rau Cov Ntawv Thov Tsis Muaj Cov Qauv.
ASTM A252 Qib 2
TS EN 10219 S275J0H - Cold-formed welded qauv steel yeeb nkab
CSA G40.21 350W - Cov qauv zoo steel.
AS/NZS 1163 C350L0 - Cold-formed structural steel yeeb nkab.
GB / T 3091 Q345B - Welded steel yeeb nkab rau kev thauj mus los ntawm cov dej tsis tshua muaj siab.
JIS G3444 STK490 - Carbon steel kav rau kev siv cov qauv.
IS 4923 YST 310 - Hollow Steel Yeeb Nkab rau Lub Hom Phiaj.
ASTM A252 Qib 3
TS EN 10219 S355J2H - Cold-formed welded qauv steel kav
CSA G40.21 350W - Cov qauv zoo steel, cov kev teeb tsa tshwj xeeb tuaj yeem ua tau raws li Qib 3 qhov yuav tsum tau ua.
AS/NZS 1163 C450L0 - Cold-formed structural steel hlab thiab cov kav dej, qib siab zog hauv cov koob.
GB / T 3091 Q460C - Welded steel yeeb nkab rau kev thauj mus los ntawm cov kua dej qis rau cov ntawv thov uas xav tau lub zog ntau dua.
JIS G3444 STK540 - Carbon steel yeeb nkab rau kev siv cov qauv, muaj nyob rau hauv cov kev xaiv muaj zog.
Peb cov khoom muaj feem xyuam
Botop Steel yog Tuam Tshoj Professional Welded Carbon Steel Pipes Chaw Tsim Tshuaj & Cov Chaw Muag Khoom Tshaj 16 Xyoo nrog 8000+ Tons ntawm Seamless Kab Yeeb Nkab Hauv Tshuag Txhua Lub Hlis.Muab cov khoom lag luam zoo thiab tus nqi qis rau koj, yog tias koj xav tau thov hu rau peb, peb yuav muab koj ntau yam kev daws teeb meem steel yeeb nkab.
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Lub sij hawm xa tuaj: Mar-29-2024