BS 1387 Welded Rectangulal Steel Yeeb Nkab
BS1387 Welded yeeb nkab yog British Standard rau threaded kev twb kev txuas rau ntau yam kev siv nyob rau hauv roj, huab cua thiab dej thauj, pej xeem thiab lwm yam qauv.
BS 1387 ERW Dub Welded Yeeb Nkab Specification
|
Txuj |
BS 1387-1985, JIS G3454-2007 |
|
Qib |
Cr5Mo, 12CR2MO, 34CrMo4, Cr5MoG, Cr17Ni8, 1Cr13Mn9Ni1N, 15MnV, 09Mn2V, API N80 |
|
Thickness |
0.6 hli - 20mm |
|
Tshooj Duab |
ROV |
|
Sab nraud |
6.35mm - 254 hli |
|
Qhov Chaw Keeb Kwm |
Tuam Tshoj |
|
Daim ntawv thov |
Lub rhaub dej kub |
|
Cov txheej txheem |
efw ua |
|
Daim ntawv pov thawj |
SGS/BV/ABS/LR/TUV/DNV/BIS/API/PED |
|
Kev kho saum npoo |
galvanized |
|
Alloy Los Tsis |
Tsis-alloy |
|
Ua siab ntev |
±5% |
|
Hom |
welded steel yeeb nkab |
|
Secondary Los Tsis |
Tsis-secondary |
|
Khoom siv |
A/SA268 TP410 |
|
Kev siv |
Roj Yeeb |
|
Daim ntawv pov thawj |
SGS/BV/ABS/LR/TUV/DNV/BIS/API/PED |
Welded Carbon Steel Pipe Tshuaj muaj pes tsawg leeg thiab txhua yam khoom
|
Chemical composition (Ladle) |
Mechanical zog ntawm chav tsev kub | |||||
|
C Max. |
Mn Max. |
P Max. |
S Max. |
Tensile zog, Rm |
Yield zog, Re (min.) |
Elongation ntawm Gauge Length L{0}}.65 S0 A (min.) |
|
% |
% |
% |
% |
N / hli 2 |
N / hli 2 |
% |
|
0.2 |
1.2 |
0.045 |
0.045 |
320-460 Nws |
195 |
20 |
BS1387-85 Dub Carbon Steel Yeeb Nkab /erw Steel Yeeb Nkab, Lub teeb Serie
|
nominal qhov (mm) |
OD (lub teeb hli) |
thickness (mm) |
Qhov hnyav (kg / m) |
|
8 |
13.60 |
1.80 |
0.515 |
|
10 |
17.10 |
1.80 |
0.670 |
|
15 |
21.40 |
2.00 |
0.947 |
|
20 |
26.90 |
2.30 |
1.380 |
|
25 |
33.80 |
2.60 |
1.980 |
|
32 |
42.50 |
2.60 |
2.540 |
|
40 |
48.40 |
2.90 |
3.230 |
|
50 |
60.20 |
2.90 |
4.080 |
|
65 |
76.00 |
3.20 |
5.710 |
|
80 |
88.70 |
3.20 |
6.720 |
|
100 |
113.90 |
3.60 |
9.750 |
|
125 |
140.1 |
4.50 |
|
|
150 |
165.0 |
5.00 |
|
Dub Welded Steel Test
| Khoov Test | Cov raj dub mus txog thiab suav nrog DN 50 yuav tsum khoov txias yam tsis muaj kev cuam tshuam ntawm kev puas tsuaj lossis tsis ua haujlwm, dhau ntawm 180 degree puag ncig ib qho qub uas muaj lub vojvoog hauv qab ntawm qhov zawj sib npaug rau rau lub sijhawm ntawm txoj kab uas hla sab nraud ntawm lub raj raws li tau muab rau hauv Table. Kub-dip-zinc coated tubes yuav tsum tau khoov txias nrog kev tawg ntawm cov hlau, los ntawm 90 degree puag ncig ib tug qub uas muaj ib lub vojvoog nyob rau hauv qab ntawm qhov zawj sib npaug rau yim npaug ntawm sab nraud txoj kab uas hla ntawm lub raj. | |||
| Flattening Test | Qhov kev sim flattening siv rau cov raj ntau dua DN50. | |||
| Lub nplhaib tsis pub tsawg tshaj 40mm nyob rau hauv ntev npaum li cas los ntawm ib kawg ntawm txhua lub raj uas xaiv yuav tsum flattened txias ntawm parallel flat platens tsis pom qhov tawg los yog flaw kom txog rau thaum qhov kev ncua deb ntawm lub platens, ntsuas nyob rau hauv load, tsis ntau tshaj 75% ntawm thawj sab nraud txoj kab uas hla ntawm lub raj, thiab tsis muaj kab nrib pleb lossis flaws nyob rau hauv cov hlau lwm qhov dua li hauv cov vuam yuav tsum tshwm sim kom txog thaum qhov kev ncua deb ntawm cov platens tsawg dua 60% ntawm cov kab qub. Lub vuam yuav tsum tau muab tso rau ntawm 90 degree rau kev taw qhia ntawm flattening. | ||||
| Leak Tightness Test | Qhov kev ntsuam xyuas yuav tsum yog ib qho kev sim hydraulic ntawm qhov siab ntawm 50 bar (50 × 105 N / M²), los yog lwm yam, ib qho kev ntsuas tam sim no. | |||
Dub Rectangulal Steel Yeeb Nkab
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