API 5Lpipeline tšepe phala
Kereiti ea tšepe: L360 kapa X52 (PSL1)
Litlhoko tsa sebopeho sa lik'hemik'hale:
C: ≤0.28(seamless) ≤0.26(welded)
Mong: ≤1,40
P: ≤0.030
S: ≤0.030
Cu: 0.50 kapa ka tlase
Ke: ≤0.50
Kr: ≤0.50
MO: ≤0.15
*V+Nb+Ti: ≤0.15
* Likahare tsa manganese li ka eketsoa ka 0.05% bakeng sa phokotso e ngoe le e ngoe ea 0.01% ea khabone, ho fihla ho boholo ba 1.65%.
Litlhoko tsa thepa ea mochini:
Matla a tlhahiso: ≥360Mpa
Matla a khoheli: ≥460Mpa
Weld tensile matla a welded tšepe phala: ≥460Mpa
Elongation: ≥1940* AXC0.2/4600.9 , moo AXC e leng sebaka se arohaneng sa sampole ea tensile
Mamello ea kantle ea bophara ba phala ea tšepe:
| Bophara ba ka ntle D mm | Qetella ho kheloha ka ntle ho bophara ba mm | |
| Pipe ea tšepe e se nang seam | Peipi ea tšepe e cheselitsoeng | |
| <60.3 | -0.8, +0,4 | |
| 60.3 D kapa ka tlase ho 168.3 kapa ka tlase | -0,4, +1,6 | |
| 168.3 <D≤610 | ± 0.005D, empa boholo ba ± 1.6 | |
| 610 <D≤1422 | +/ - 2.0 | +/ - 1.6 |
| > 1422 | Ka tumellano | |
Lerako botenya mamello of tshepe peipi:
| Botenya ba lebota t mm | Mamello mm |
| Pipe ea tšepe e se nang seam | |
| 4.0 kapa ka tlase ho moo | +0,6, -0,5 |
| 4 <t <25 | +0.150t, -0.125t |
| 25 kapa ho feta | +3.7 kapa +0.1t, ho sa tsotellehe hore na e kholoanyane -3.0 kapa -0.1t, nka e kholoanyane |
| Tube e cheselitsoeng | |
| 5.0 kapa ka tlase ho moo | +/ - 0.5 | |
| 5.0 | <t <15 | Ho eketsa kapa ho tlosa 0.1 t |
| 15 | kapa ho feta | +/ - 1.5 |
Tšepe mophato: L360N or X52N(PSL2)
Lik'hemik'hale tlhamo litlhoko:
C: ≤0.24
Boemo: ≤0.45
Mong: ≤1,40
P: ≤0.025
S: ≤0.015
V: ≤0.10
Nb:≤0.05
Theko: ≤0.04
Ke: ≤0.50
Ke: ≤0.30
Kr: ≤0.30
MO: ≤0.15
V+Nb+Ti: ≤0.15
* Likahare tsa manganese li ka eketsoa ka 0.05% bakeng sa phokotso e 'ngoe le e 'ngoe ea 0.01% ea khabone, ho fihla ho boholo ba 1.65%.
* Ha ho tlatsetso ka boomo ea boron e lumelletsoeng, masala a B≤0.001%
Khabone lekanang:
CEP cm: ≤0.25
CEIIW: ≤0.43
* Sebelisa CE ha carbon content e le kholo ho feta 0.12%, 'me u sebelise CE IIW whenP cm carbon content e ka tlaase ho kapa e lekana le 0.12%.
CEP cm = C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B
Haeba sephetho sa tlhahlobo ea smelting ea B se ka tlase ho 0.0005%, ha ho hlokahale ho kenyelletsa tlhahlobo ea element B tlhahlobisong ea sehlahisoa, 'me litaba tsa B li ka nkuoa e le zero palong ea CEP cm e lekanang le khabone.
CEIIW =C+Mn/6 (C+Mo+V)/5+(Ni+Cu)/ 15
Mechini thepa litlhoko:
Matla a tlhahiso: 360-530Mpa
Tensile matla: 460-760Mpa
Karolelano ea lihlahisoa: ≤0.93 (e sebetsa feela ho D> 323.9mm phala ea tšepe)
Weld tensile matla a welded tšepe phala: ≥460Mpa
Elongation e fokolang: = 1940 * AXC0.2/4600.9, moo AXC e leng sebaka sa sefapano sa sampuli ea tensile.
Teko ea phello ea CVN ea tube
Teko mocheso 0 .C
| Hlalosa bophara ba kantle ba D mm | CVN ea boholo bo feletsengMatla a monngoengKVJ |
| 508 kapa ka tlase ho moo | 27 |
| > 508 ho isa ho 762 | 27 |
| > 762 ho isa ho 914 | 40 |
| > 914 ho isa ho 1219 | 40 |
| > 1219 ho isa ho 1422 | 40 |
| > 1422 ho isa ho 2134 | 40 |
Kantle bophara mamello of tshepe peipi:
| Bophara ba ka ntle D mm | Qetella ho kheloha bophara ka ntle | |
| Pipe ea tšepe e se nang seam | Peipi ea tšepe e cheselitsoeng | |
| <60.3 | -0.4, +0,8 | |
| 60.3 D kapa ka tlase ho 168.3 kapa ka tlase | -0,4, +1,6 | |
| 168.3 <D=610 | ± 0.005D, empa boholo ba ± 1.6 | |
| 610 <D=1422 | +/ - 2.0 | +/ - 1.6 |
| > 1422 | Ka tumellano | |
Lerako botenya mamello of tshepe peipi:
| Botenya ba lebota t mm | Mamello |
| Pipe ea tšepe e se nang seam | |
| 4.0 kapa ka tlase ho moo | +0,6, -0,5 |
| 4 <t <25 | +0.150t, -0.125t |
| 25 kapa ho feta | +3.7 kapa +0.1t, leha e le efe e kholoanyane -3.0 kapa -0.1t, nka kholoanyane |
| Peipi e cheselitsoeng | |
| 5.0 kapa ka tlase ho moo | +/ - 0.5 |
| 5.0 <t <15 | Ho eketsa kapa ho tlosa 0.1 t |
| 15 kapa ho feta | +/ - 1.5 |
Nako ea poso: Sep-26-2023
