API 5Lpaipa maitai paipa
Koeke maitai: L360, X52 ranei (PSL1)
Nga whakaritenga hanganga matū:
C: ≤0.28(kore) ≤0.26(whakapaihia)
Mn: ≤1.40
P: ≤0.030
S: ≤0.030
Cu: 0.50 iti iho ranei
Ni: ≤0.50
Cr: ≤0.50
Mo: ≤0.15
*V+Nb+Ti: ≤0.15
* Ka taea te whakanui ake i te konupora ma te 0.05% mo ia 0.01% te whakahekenga o te waro, tae atu ki te 1.65% teitei.
Nga whakaritenga mo nga taonga miihini:
Te kaha tuku: ≥360Mpa
Te kaha tensile: ≥460Mpa
Weld tensile kaha o paiherea paipa maitai: ≥460Mpa
Elongation: ≥1940* AXC0.2 / 4600.9 , kei reira te AXC te waahanga whakawhiti o te tauira tensile
Ko te whanui o waho o te paipa maitai:
| Te diameter o waho D mm | Whakamutua te rereke o te diameter o waho mm | |
| Pupa maitai tuitui | paipa maitai paiherea | |
| <60.3 | -0.8, +0.4 | |
| 60.3 D iti iho ranei 168.3 iti iho ranei | -0.4, +1.6 | |
| 168.3 < D≤610 | ±0.005D, engari mōrahi ±1.6 | |
| 610 < D≤1422 | + / - 2.0 | + / - 1.6 |
| > 1422 | Ma te whakaaetanga | |
Taiepa matotoru te manawanui of maitai paipa:
| Te matotoru o te pakitara t mm | Whakaaetanga mm |
| Pupa maitai tuitui | |
| 4.0 iti iho ranei | +0.6, -0.5 |
| 4 < t < 25 | +0.150t, -0.125t |
| 25 teitei ake ranei | +3.7, +0.1t rānei, ko wai te mea nui ake -3.0, -0.1t rānei, kia nui ake |
| ngongo paiherea | |
| 5.0 iti iho ranei | + / - 0.5 | |
| 5.0 | < t < 15 | Tāpiri, haunga 0.1 t |
| 15 | nui atu ranei | + / - 1.5 |
Te maitai kōeke: L360N or X52N(PSL2)
Te matū titonga whakaritenga:
C: ≤0.24
Si: ≤0.45
Mn: ≤1.40
P: ≤0.025
S: ≤0.015
V: ≤0.10
Nb:≤0.05
Ti: ≤0.04
Cu: ≤0.50
Ni: ≤0.30
Cr: ≤0.30
Mo: ≤0.15
V+Nb+Ti: ≤0.15
* Ka taea te whakanui ake i te konupora ma te 0.05% mo ia 0.01% te whakahekenga o te waro, tae atu ki te 1.65%.
* Karekau e whakaaetia te taapiri o te boron, te toenga B≤0.001%
waro ōrite:
CEP cm : ≤0.25
CEIIW : ≤0.43
* Whakamahia te CE ina nui ake te waro i te 0.12%, me te whakamahi i te CE IIW inaP cm te waro he iti iho i te rite ranei ki te 0.12%.
CEP cm = C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B
Mena he iti iho i te 0.0005% te hua o te tātari whakarewa o B, karekau he take ki te whakauru i te tātaritanga o te huānga B i roto i te tātaritanga hua, ka taea te whakaaro ko te ihirangi B hei kore i roto i te tatauranga CEP cm rite waro.
CEIIW =C+Mn/6 (C+Mo+V)/5+(Ni+Cu)/ 15
Hangaia taonga whakaritenga:
Te kaha tuku: 360-530Mpa
Te kaha tensile: 460-760Mpa
Hua ōwehenga: ≤0.93 (e hāngai ana ki te D> 323.9mm paipa maitai)
Weld tensile kaha o paiherea paipa maitai: ≥460Mpa
Te whakaroa iti: = 1940* AXC0.2/4600.9 , kei reira te AXC te waahanga whiti o te tauira tensile.
Whakamātautau pānga CVN o te ngongo
Te pāmahana whakamātautau 0 .C
| Tauwhāitihia te diameter o waho o D mm | CVN rahi tonuPungao kapohiaKVJ |
| 508 iti iho ranei | 27 |
| > 508 ki te 762 | 27 |
| > 762 ki te 914 | 40 |
| > 914 ki te 1219 | 40 |
| > 1219 ki te 1422 | 40 |
| > 1422 ki te 2134 | 40 |
Waho diameter te manawanui of maitai paipa:
| Te diameter o waho D mm | Whakamutua te rereke o te diameter o waho | |
| Pupa maitai tuitui | paipa maitai paiherea | |
| <60.3 | -0.4, +0.8 | |
| 60.3 D iti iho ranei 168.3 iti iho ranei | -0.4, +1.6 | |
| 168.3 < D=610 | ±0.005D, engari mōrahi ±1.6 | |
| 610 < D=1422 | + / - 2.0 | + / - 1.6 |
| > 1422 | Ma te whakaaetanga | |
Taiepa matotoru te manawanui of maitai paipa:
| Te matotoru o te pakitara t mm | Whakaaetanga |
| Pupa maitai tuitui | |
| 4.0 iti iho ranei | +0.6, -0.5 |
| 4 < t < 25 | +0.150t, -0.125t |
| 25 teitei ake ranei | +3.7, +0.1t rānei, ko wai te mea nui ake -3.0 ranei -0.1t, tango nui |
| paipa paiherea | |
| 5.0 iti iho ranei | + / - 0.5 |
| 5.0 < t < 15 | Tāpiri, haunga 0.1 t |
| 15 neke atu ranei | + / - 1.5 |
Te wa tuku: Sep-26-2023
