API 5Lpipeline simbi pombi
Simbi giredhi: L360 kana X52 (PSL1)
Kemikari inodiwa zvinodiwa:
C: ≤0.28(isina musono) ≤0.26(yakasungwa)
Mn: ≤1.40
P: ≤0.030
S: ≤0.030
Cu: 0.50 kana pasi
Ni: ≤0.50
Cr: ≤0.50
Mo: ≤0.15
*V+Nb+Ti: ≤0.15
* Manganese emukati anogona kuwedzerwa ne 0.05% yega yega 0.01% kudzikiswa kwekabhoni, kusvika painodarika 1.65%
Mechanical properties zvinodiwa:
Goho simba: ≥360Mpa
Kusimba kwesimba: ≥460Mpa
Weld tensile simba we welded simbi pombi: ≥460Mpa
Elongation: ≥1940* AXC0.2/4600.9 , uko AXC ndiyo inoyambuka-chikamu nharaunda yetensile sampuli
Kunze dhayamita kushivirira kwesimbi pombi:
| Kunze dhayamita D mm | Kupera kunze kwedhayamita kutsauka mm | |
| Seamless simbi pombi | Welded simbi pombi | |
| <60.3 | -0.8, +0.4 | |
| 60.3 D kana zvishoma 168.3 kana pasi | -0.4, +1.6 | |
| 168.3 <D≤610 | ± 0.005D, asi yakawanda ± 1.6 | |
| 610 < D≤1422 | +/ - 2.0 | +/ - 1.6 |
| > 1422 | Nekubvumirana | |
Wall ukobvu kushivirira of simbi pombi:
| Ukobvu hwemadziro t mm | Kushivirira mm |
| Seamless simbi pombi | |
| 4.0 kana zvishoma | +0.6, -0.5 |
| 4 <t <25 | +0.150t, -0.125t |
| 25 kana kupfuura | +3.7 kana +0.1t, chero yakakura -3.0 kana -0.1t, tora hombe |
| Welded chubhu | |
| 5.0 kana zvishoma | +/ - 0.5 | |
| 5.0 | <t <15 | Kuwedzera kana kubvisa 0.1 t |
| 15 | kana kupfuura | +/ - 1.5 |
Simbi giredhi: L360N or X52N(PSL2)
Chemical composition zvinodiwa:
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
* Manganese emukati anogona kuwedzerwa ne0.05% yega yega 0.01% kudzikiswa kwekabhoni, kusvika pakukwirira kwe1.65%.
* Hapana kuwedzera nemaune kweboron kunobvumidzwa, zvakasara B≤0.001%
Carbon yakaenzana:
CEP masendimita: ≤0.25
CEIIW : ≤0.43
* Shandisa CE kana kabhoni yemukati yakakura kupfuura 0.12%, uye shandisa CE IIW apoP cm iyo kabhoni yemukati iri pasi kana kuenzana ne0.12%.
CEP cm = C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B
Kana mhedzisiro yekuongorora kunyungudika kweB iri pasi pe0.0005%, saka hapana chikonzero chekuisa kuongororwa kwechikamu B mukuongorora kwechigadzirwa, uye iyo B yemukati inogona kubatwa sezero muiyo kabhoni yakaenzana neCEP cm kuverenga.
CEIIW =C+Mn/6 (C+Mo+V)/5+(Ni+Cu)/ 15
Mechanical properties zvinodiwa:
Goho simba: 360-530Mpa
Kusimba kwesimba: 460-760Mpa
Goho reshiyo: ≤0.93 (chete inoshanda kuD> 323.9mm simbi pombi)
Weld tensile simba we welded simbi pombi: ≥460Mpa
Minimum elongation: = 1940* AXC0.2/4600.9, apo AXC ndiyo nzvimbo yemuchinjikwa-chikamu chemuenzaniso wetensile.
CVN kukanganisa bvunzo yechubhu
Test tembiricha 0 .C
| Taura dhayamita yekunze yeD mm | Yakazara saizi CVNAbsorbed simbaKVJ |
| 508 zvichidzika | 27 |
| 508 kusvika 762 | 27 |
| 762 kusvika 914 | 40 |
| > 914 kusvika 1219 | 40 |
| > 1219 kusvika 1422 | 40 |
| > 1422 kusvika 2134 | 40 |
Outer dhayamita kushivirira of simbi pombi:
| Kunze dhayamita D mm | Pedzisa kunze kwedhayamita kutsauka | |
| Seamless simbi pombi | Welded simbi pombi | |
| <60.3 | -0.4, +0.8 | |
| 60.3 D kana zvishoma 168.3 kana pasi | -0.4, +1.6 | |
| 168.3 < D=610 | ± 0.005D, asi yakawanda ± 1.6 | |
| 610 < D=1422 | +/ - 2.0 | +/ - 1.6 |
| > 1422 | Nekubvumirana | |
Wall ukobvu kushivirira of simbi pombi:
| Ukobvu hwemadziro t mm | Kushivirira |
| Seamless simbi pombi | |
| 4.0 kana zvishoma | +0.6, -0.5 |
| 4 <t <25 | +0.150t, -0.125t |
| 25 kana kupfuura | +3.7 kana +0.1t, chero yakakura -3.0 kana -0.1t, tora yakakura |
| Welded pipe | |
| 5.0 kana zvishoma | +/ - 0.5 |
| 5.0 <t <15 | Kuwedzera kana kubvisa 0.1 t |
| 15 kana kupfuura | +/ - 1.5 |
Nguva yekutumira: Sep-26-2023
