TS EN 10255 STEEL kav hlau txais xov
Cov lus hauv qab no muaj qhov ntev thiab qhov hnyav ntawm cov raj steel raws li European tus qauv EN 10255 "Non-Alloy Steel Tubes Haum rau Vuam thiab Threading" thiab British Standard BS 1387: 1985 "Specification for screwed and socketed steel tubes and tubulars, and for plain ending steel tubes" BS1 threads haum rau cov yeeb nkab steel yeeb nkab
|
Qhia sab nraum diam
(mm) |
Xov Loj
R |
Sab nraum
max.
(mm) |
txoj kab uas hla
min.
(mm) |
H
Phab ntsa tuab
T
(mm) |
H
ua serie
Pawg ntev o
Plain kawg
(kg / m) |
s
ib chav f cev
Socketed
(kg / m) |
Kuv
Phab ntsa tuab
T
(mm) |
M
yam seri
Pawg ntev o
Plain kawg
(kg / m) |
es
ib chav f cev
Xov thiab ua socket
(kg / m) |
| 102 | 1/8 | 10,6 | 98 | 26 | 487 | 490 | 20 | 404 | 407 |
| 135 | 1/4 | 14,0 | 132 | 29 | 765 | 769 | 23 | 641 | 645 |
| 172 | 3/8 | 17,5 | 167 | 29 | 102 | 103 | 23 | 839 | 845 |
| 213 | 1/2 | 218 | 210 | 32 | 144 | 145 | 26 | 121 | 122 |
| 269 | 3/4 | 27,3 | 265 | 32 | 187 | 188 | 26 | 156 | 157 |
| 337 | 1 | 342 | 333 | 40 | 293 | 295 | 32 | 241 | 243 |
| 424 | 11/4 | 42,9 | 420 | 40 | 379 | 382 | 32 | 310 | 313 |
| 483 | 11/2 | 488 | 479 | 40 | 437 | 441 | 32 | 356 | 360 |
| 603 | 2 | 60,8 | 597 | 45 | 619 | 626 | 36 | 503 | 510 |
| 761 | 21/2 | 766 | 753 | 45 | 793 | 805 | 36 | 642 | 654 |
| 889 | 3 | 89,5 | 880 | 50 | 103 | 105 | 40 | 836 | 853 |
| 1,143 | 4 | 1,150 | 1,131 | 54 | 145 | 148 | 45 | 122 | 125 |
| 1,397 | 5 | 1,408 | 1,385 | 54 | 179 | 184 | 50 | 166 | 171 |
| 1,651 | 6 | 1,665 | 1,639 | 54 | 213 | 219 | 50 | 198 | 204 |
| a Rau kev sib raug zoo ntawm txoj kab uas hla sab nraud (D), xov loj (R) thiab nominal txoj kab uas hla (DN), saib Annex A. T=qhia phab ntsa thickness. |
|||||||||
|
Nominal Bore |
Sab nraud txoj kab uas hla |
Thickness |
Qhov hnyav |
||||||
|
Teeb |
Nruab nrab/ Hnyav
|
Teeb |
Nruab nrab |
Hnyav |
Teeb |
Nruab nrab |
Hnyav |
||
|
hauv |
mm |
mm |
mm |
mm |
mm |
mm |
kg/m |
kg/m |
kg/m
|
|
1/4 |
8 |
13.6 |
13.9 |
1.80 |
2.3 |
2.9 |
0.515 |
0.641 |
0.765 |
|
3/8 |
10 |
17.1 |
17.4 |
1.80 |
2.3 |
2.9 |
0.670 |
0.839 |
1.020 |
|
1/2 |
15 |
21.4 |
21.7 |
2.00 |
2.6 |
3.2 |
0.947 |
1.210 |
1.440 |
|
3/4 |
20 |
26.9 |
27.2 |
2.30 |
2.6 |
3.2 |
1.380 |
1.560 |
1.870 |
|
1 |
25 |
33.8 |
34.2 |
2.60 |
3.2 |
4.0 |
1.980 |
2.410 |
2.940 |
|
1 1/4 |
32 |
42.5 |
42.9 |
2.60 |
3.2 |
4.0 |
2.540 |
3.100 |
3.800 |
|
1 1/2 |
40 |
48.4 |
48.8 |
2.90 |
3.2 |
4.0 |
3.230 |
3.570 |
4.380 |
|
2 |
50 |
60.2 |
60.8 |
2.90 |
3.6 |
4.5 |
4.080 |
5.030 |
6.190 |
|
2 1/2 |
65 |
76.0 |
76.6 |
3.20 |
3.6 |
4.5 |
5.710 |
6.430 |
7.930 |
|
3 |
80 |
88.7 |
89.5 |
3.20 |
4.0 |
5.0 |
6.720 |
8.370 |
10.300 |
|
4 |
100 |
113.9 |
114.9 |
3.60 |
4.5 |
5.4 |
9.750 |
12.200 |
14.500 |
|
5 |
125 |
– |
140.6 |
– |
5.0 |
5.4 |
– |
16.600 |
17.900 |
|
6 |
150 |
– |
165.1 |
– |
5.0 |
5.4 |
– |
19.700 |
21.300 |
TS EN 10255 CHEMICAL COMPOSITION TSEEM CEEB
| Qib | Tshuaj muaj pes tsawg leeg (%) | |||
| S195T | C | Mn | P | S |
| Tsawg dua los yog sib npaug li 0.20 | Tsawg dua lossis sib npaug li 1.40 | Tsawg dua lossis sib npaug li 0.035 | Tsawg dua lossis sib npaug li 0.030 | |
Mechanical Properties ntawm EN 10255 Cov kav dej
| Qib | Mechanical Properties | ||
| S195T | Yield zog (Mpa) | Tensile zog (Mpa) | Elongation (%) |
| 195 | 320-520 | 20 | |
TS EN 10255 PIPING TSEEM CEEB
- Hom L - Dimension Tolerance thiab Unit Mass
- Hom L1 - Dimension Tolerance thiab Unit Mass
- Hom L2 - Dimension Tolerance thiab Unit Mass
- Phab ntsa Thickness
• ± 10%. rau M thiab H series & Hom L;
• -8% nrog rau kev kam rau siab ntxiv txwv los ntawm huab hwm coj kam rau ua, rau Hom L1 thiab L2.
- Nyhav
• ± 7.5% ntawm pob khoom ntawm 10 tons lossis ntau dua, rau M thiab H series thiab Hom L;
• +10%, -8% ntawm ib leeg tub rau hom L1 thiab L2.
- Kev ncaj
• Ncaj yuav tsum tsis pub tshaj 0.002 L.
Kuaj thiab tshuaj xyuas ntawm EN 10255 PIPING
- Tensile Test
Kev ntsuas tensile yuav tsum tau ua rau ntawm ib lub raj liab qab raws li EN 10002-1.
- Khoov Test
Txhawm rau kom ntseeg tau qhov zoo ntawm peb cov welded raj, peb ua qhov kev ntsuas khoov raws li EN 10232. Qhov kev sim no yog siv rau cov hlab ntsha liab qab nrog cov txheej txheem sab nraud ntawm 17.2mm mus txog thiab suav nrog 60.3mm, thiab lub raj yog khoov rau lub kaum sab xis ntawm 90 degree. Qhov zawj hauv cov cuab yeej tsim muaj qhov dav uas haum rau lub raj txoj kab uas hla kom raug thiab qhov tob tsis tshaj li ib nrab ntawm txoj kab uas hla. Lub vojvoog nyob rau hauv qab ntawm qhov zawj ntawm lub qub yog raws li tau muab rau hauv cov lus hauv qab no. Welded tubes yuav tsum tau khoov nrog lub weld nyob rau sab nraud ntawm khoov. Cov raj yuav tsum tsis pom cov kab nrib pleb pom yam tsis muaj kev txhawb nqa. Los ntawm kev ua qhov kev sim no, peb tuaj yeem xyuas kom meej tias peb cov welded raj ua tau raws li cov qauv zoo tshaj plaws.
| Txoj kab uas hla (mm) | 17.2 | 21.3 | 26.9 | 33.7 | 42.4 | 48.3 | 60.3 |
| Khoov Radius | 50 | 65 | 85 | 100 | 150 | 170 | 220 |
- Kev xeem Flattening
Txhawm rau kom muaj kev ncaj ncees ntawm cov kav hlau welded, ib qho kev sim flattening yog ua raws li EN 10233. Qhov kev ntsuam xyuas yog siv rau cov leeg liab qab nrog rau sab nraud txoj kab uas hla ntau dua 60.3 hli thiab yuav tsum flattening lub raj hauv xovxwm kom txog thaum qhov kev ncua deb ntawm platens, ntsuas hauv qab load, ncav cuag 75%. Lub vuam yuav tsum tau muab tso ua ke ntawm 0 lossis 90℃rau kev taw qhia ntawm flattening. Thaum lub sij hawm flattening txheej txheem, lub raj yuav tsum tsis txhob muaj kab nrib pleb los yog flaws pom yam tsis muaj magnifying pab. Thaum qhov kev ncua deb ntawm platens nce mus txog 60% ntawm qhov tseem ceeb sab nraud txoj kab uas hla, me ntsis tsis ua hauj lwm ntxov ntawm cov npoo yuav tsum tsis txhob suav hais tias yog qhov ua rau tsis lees paub. Qhov kev ntsuam xyuas no ua kom ntseeg tau tias cov welded raj tuaj yeem tiv taus qhov xav tau ntawm lub siab yam tsis ua tsis tiav.
- Leak Tightness Test
Txhua qhov system uas cuam tshuam txog kev thauj cov kua dej yuav tsum tau tsim los xyuas kom meej tias tsis muaj qhov xau. Qhov no yog qhov tseem ceeb tshwj xeeb hauv kev lag luam xws li kev kho mob, qhov twg txawm tias me me tuaj yeem ua rau muaj qhov tshwm sim loj. Txhawm rau kom ntseeg tau tias lawv cov khoom lag luam muaj kev ncaj ncees, cov tuam txhab tsim khoom yuav tsum ua txhua lub raj rau kev xau- kev ntsuas nruj. Hom kev sim ntau tshaj plaws yog kev sim hydrostatic, uas suav nrog kev ntim cov raj dej thiab nias nws mus rau 50 bar rau tsawg kawg 5 vib nas this. Txawm li cas los xij, cov chaw tsim khoom kuj tseem muaj kev xaiv siv cov khoom siv electromagnetic raws li EN 10246-1. Txawm siv hom kev xeem twg, lub hom phiaj yog los xyuas kom meej tias cov khoom tiav tiav yog kev nyab xeeb thiab haum rau kev siv.
- Dimensional Inspection
Qhov loj thiab qhov loj me yuav tsum tau ua.
- Kev kuaj pom pom
Kev kuaj pom yuav tsum ua raws li tus qauv.
TSEEM CEEB RAU EN 10255 PIPES
Cov cim yuav tsum tau muab tso rau tsawg kawg ib zaug hauv ib lub 'meter' ntawm ib kawg ntawm lub raj, thiab cov raj yuav tsum tau cim nrog cov ntaub ntawv hauv qab no los ntawm txoj kev tsim nyog thiab ruaj khov:
• Lub npe lossis lub cim lag luam ntawm cov chaw tsim khoom;
• Lub cim loj (H lossis M) thiab hom (L, L1, lossis L2);
• Lub cim ntawm kev tsim khoom (S lossis W)
Cov xim tuaj yeem yog ib txoj hauv kev zoo los npaj thiab txheeb xyuas cov khoom sib txawv, thiab qhov no yog qhov tseeb tshwj xeeb tshaj yog thaum nws los txog rau cov raj. Tubes feem ntau yog siv rau ntau qhov chaw, los ntawm cov chaw tsim kho mus rau lub chaw soj nstuam, thiab lawv tuaj nyob rau hauv ntau qhov ntau thiab tsawg thiab cov khoom siv. Thaum txhua hom raj muaj nws cov khoom tshwj xeeb, lawv txhua tus yuav tsum tau cim kom lawv tuaj yeem txheeb xyuas tau yooj yim. Cov chaw tsim khoom tuaj yeem xaiv siv cov xim coding tsis yog cov cim lossis hom cim. Qhov no yuav ua rau nws yooj yim los txheeb xyuas qhov sib txawv ntawm cov raj, txuag lub sijhawm thiab tiv thaiv kev tsis meej pem.
| Hnyav | Nruab nrab | Hom |
| Liab | Xiav | Saib Tolerance Table |
Cov ntaub ntawv hauv qab no yuav tsum tshwm sim ntawm daim ntawv lo ntawm txhua pob khoom:
• Lub npe lossis lub cim lag luam ntawm cov chaw tsim khoom;
• Tus qauv code EN 10255;
• Lub cim ntawm kev tsim khoom (S lossis W)
• D (sab nraud txoj kab uas hla) los yog R (xov tooj loj);
• Cov koob lossis hom lossis cov phab ntsa tuab.
TS EN 10255 THIAB BS 1387 COMPARISON TABLE
Abolished thiab hloov los ntawm European tus qauv EN 10255: 2004 (tau txais los ntawm UK lub teb chaws tus qauv lub cev raws li BS EN 10255: 2004 "tsis yog- alloy steel tubes haum rau vuam lossis threading"), BS 1387: 1985 tau so haujlwm. Cov hom hauv BS 1387 thiab EN 10255 uas sib raug rau ib leeg yog teev nyob rau hauv cov lus hauv qab no.
| EN 10255 L | – |
| EN 10255 L1 | – |
| EN 10255 L2 | BS 1387 Ib |
| EN 10255 Qhov nruab nrab | BS 1387 Medium |
| EN 10255 Hnyav | BS 1387 Hwv |
TSEEM CEEB EN 10255 PIPES
Qhov zoo ntawm ib lub raj feem ntau txiav txim siab los ntawm nws qhov chaw tiav. Vim li no, cov neeg tsim khoom yuav tsum tau saib xyuas kom ntseeg tau tias lawv cov khoom tsis muaj qhov tsis xws luag tuaj yeem kuaj pom los ntawm kev kuaj pom. Sab hauv thiab sab nraud ntawm lub raj yuav tsum du, tsis muaj qhov tsis zoo lossis cov cim uas yuav tsum tau hnav khaub ncaws. Txhua qhov chaw tsis zoo uas cuam tshuam rau ntawm phab ntsa yam tsawg kawg nkaus yog suav tias yog qhov tsis xws luag. Nws raug tso cai rau hnav khaub ncaws saum npoo tsis zoo los ntawm kev sib tsoo los yog machining yog tias cov phab ntsa tuab hauv qhov hnav khaub ncaws tsis yog tsawg dua qhov tsawg kawg nkaus. Txhua qhov chaw hnav khaub ncaws yuav tsum sib xyaw ua ke rau hauv qhov contour ntawm lub raj. Los ntawm kev ua raws li cov lus qhia no, cov tuam txhab tsim khoom tuaj yeem tsim cov raj nrog cov txheej txheem zoo tshaj plaws uas ua tau raws li cov qauv zoo tshaj plaws.
