Kaila | ʻenehana | Mea waiwai | Kūlana | Papa | Hoʻohana |
Paipu kila Welded Resistance Welded (ERW). | ʻO ke alapine kiʻekiʻe | ʻO ka hao hao | API 5L PSL1&PSL2 | GR.B,X42,X46,X52,X60,X65,X70, etc. | Ka lawe ʻana i ka ʻaila a me ke kinoea |
ASTM A53 | GR.A ,GR.B | No ke kūkulu ʻana (Piling) | |||
ASTM A252 | GR.1, GR.2,GR.3 | ||||
BS EN10210 | S275JRH,S275J0H,S355J0H,S355J2H, etc. | ||||
BS EN10219 | S275JRH,S275J0H,S355J0H,S355J2H, etc. | ||||
JIS G3452 | SGP, etc | Ka lawe ʻana i ka wai haʻahaʻa haʻahaʻa | |||
JIS G3454 | STPG370,STPG410, etc | ʻO ka lawe ʻana i ka wai kaomi kiʻekiʻe | |||
JIS G3456 | STPG370,STPG410,STPG480, etc | kiʻekiʻe wela kila paipu |
ʻO ka paipu i kauoha ʻia ma lalo o kēia kikoʻī no ka lawelawe kaomi ma kahi kokoke i ka mahana wela o 350 ℃.
ʻO ka paipu hū ʻole, ka uhi ʻeleʻele a i ʻole ka wela zinc-coated (hoʻopili ʻia);
I loko o nā pūʻolo me nā maʻa pulupulu ʻelua;
ʻO nā hopena ʻelua me nā mea pale hope;
ʻO ka hopena maʻamau, ka hopena bevel (Ke koi ʻia e ka mea kūʻai aku a me S≤22mm, pono e bevelled ka hopena o ka paipu, degere: 30 ° (+ 5 ° ~ 0 °), a ʻaʻole i hoʻemi ʻia ka mānoanoa pā o ke kumu e <2.4 mm.);
Hoailona.
Palekana Hoʻopau Pipe
Hoailona ma na paipu
Hoailona ma na paipu
Ka Papa a me ke Kemika (%)
Papa | C≤ | Si≤ | Mn | P≤ | S≤ |
STPG370 | 0.25 | 0.35 | 0.30-0.90 | 0.040 | 0.040 |
STPG410 | 0.30 | 0.35 | 0.30-1.00 | 0.040 | 0.040 |
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Na Waiwai Mechanical | ||||||
Papa | Ka ikaika tensile | Hua ikaika | Elongation % | |||
N/ m㎡ | N/ m㎡ | No.11 a i ole No.12 mau apana hoao | No. 5 pauku hoao | Helu 4 wahi hoao | ||
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| Ka lōʻihi | Kūʻē | Ka lōʻihi | Kūʻē | |
STPG370 | 370 min | 215 min | 30 min | 25 min | 28 min | 23 min |
STPG410 | 410 min | 245 min | 25 min | 20 min | 24 min | 19 min |
ʻO ke ahonui o OD a me WT
Māhele | Hoʻomanawanui ma OD | Hoʻomanawanui ma WT | ||
ʻO ke anu i hoʻopau ʻia ʻo ERW Steel Pipe | 24A a i ʻole | +/-0.3mm | Ma lalo o 3mm
3mm a ʻoi aku paha | +/-0.3mm
+/-10% |
32A a ʻoi aku paha | +/-0.8% |
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No nā paipu o ka nui 350A a ʻoi aku paha, hiki ke hoʻoholo ʻia ke ahonui ma OD e ka lōʻihi o ka pōʻai.I kēia hihia, ʻo ka hoʻomanawanui he +/- 0.5% |