API 5Lpaipu kila paipu
Papa kila: L360 a i ʻole X52 (PSL1)
Nā koi hoʻohui kemika:
C: ≤0.28 (maʻemaʻe) ≤0.26 (welded)
Mn: ≤1.40
P: ≤0.030
S: ≤0.030
Cu: 0.50 a emi mai paha
Ni: ≤0.50
Cr: ≤0.50
Mo: ≤0.15
*V+Nb+Ti: ≤0.15
* Hiki ke hoʻonui ʻia ka maʻiʻo manganese e 0.05% no kēlā me kēia 0.01% hōʻemi i ka maʻi kalapona, a hiki i ka 1.65% kiʻekiʻe.
Nā mea e pono ai ka mīkini:
Ka ikaika hua: ≥360Mpa
Ka ikaika tensile: ≥460Mpa
Weld tensile ikaika o welded kila paipu: ≥460Mpa
Elongation: ≥1940* AXC0.2/4600.9 , kahi o AXC ka mahele kea o ka laana tensile
ʻO ke anawaena o waho o ka paipu kila:
| Anawaena waho D mm | Hoʻopau i ke anawaena o waho mm | |
| Paipu kila ʻole | Paipu kila welo | |
| < 60.3 | -0.8, +0.4 | |
| 60.3 D a emi mai paha 168.3 a emi mai | -0.4, +1.6 | |
| 168.3 < D≤610 | ± 0.005D, akā ʻoi loa ± 1.6 | |
| 610 < D≤1422 | + / - 2.0 | + / - 1.6 |
| > 1422 | Ma ka ʻaelike | |
Pā mānoanoa hoʻomanawanui of kila paipu:
| Mānoanoa pā t mm | Hoʻomanawanui mm |
| Paipu kila ʻole | |
| 4.0 a emi mai paha | +0.6, -0.5 |
| 4 < t < 25 | +0.150t, -0.125t |
| 25 a ʻoi aku paha | +3.7 a i ʻole +0.1t, ʻoi aku ka nui -3.0 a i ʻole -0.1t, e lawe i ka nui |
| Paipu welo | |
| 5.0 a emi mai paha | + / - 0.5 | |
| 5.0 | < t < 15 | Hoʻonui a hōʻemi paha 0.1 t |
| 15 | a ʻoi aku paha | + / - 1.5 |
kila papa: L360N or X52N(PSL2)
Kemika haku mele pono:
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
* Hiki ke hoʻonui ʻia ka maʻiʻo manganese e 0.05% no kēlā me kēia 0.01% ka emi ʻana o ke kalapona, a hiki i ka 1.65%.
* ʻAʻole ʻae ʻia ka hoʻohui ʻana o ka boron, koena B≤0.001%
Kalapona mea like:
CEP knm : ≤0.25
CEIIW : ≤0.43
* E hoʻohana i ka CE inā ʻoi aku ka nui o ke kalapona ma mua o 0.12%, a e hoʻohana i ka CE IIW inā ʻoi aku ka liʻiliʻi o ke kalapona ma mua o 0.12%.
CEP cm = C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B
Inā emi ka hopena o ka hoʻoheheʻe ʻana o B ma mua o 0.0005%, a laila ʻaʻohe pono e hoʻokomo i ka ʻikepili o ka mea B i ka ʻikepili huahana, a hiki ke mālama ʻia ka ʻike B ma ke ʻano he zero i ka helu CEP cm like.
CEIIW =C+Mn/6 (C+Mo+V)/5+(Ni+Cu)/ 15
Mechanical waiwai pono:
Ka ikaika hana: 360-530Mpa
Ka ikaika tensile: 460-760Mpa
Lakiō hua: ≤0.93 (pili wale iā D > 323.9mm paipu kila)
Weld tensile ikaika o welded kila paipu: ≥460Mpa
ʻO ka elongation liʻiliʻi: = 1940* AXC0.2/4600.9, kahi o AXC ka ʻāpana keʻa o ka hāpana tensile.
ʻO ka hōʻike hopena CVN o ka paipu
Ka wela hoao 0 .C
| E wehewehe i ke anawaena o waho o D mm | Nui piha CVNikehu hoʻopaʻa ʻiaKVJ |
| 508 a emi mai paha | 27 |
| > 508 i 762 | 27 |
| > 762 i 914 | 40 |
| > 914 a hiki i 1219 | 40 |
| > 1219 a hiki i 1422 | 40 |
| > 1422 i 2134 | 40 |
Mawaho anawaena hoʻomanawanui of kila paipu:
| Anawaena waho D mm | E hoʻopau i ke anawaena o waho | |
| Paipu kila ʻole | Paipu kila welo | |
| < 60.3 | -0.4, +0.8 | |
| 60.3 D a emi mai paha 168.3 a emi mai | -0.4, +1.6 | |
| 168.3 < D=610 | ± 0.005D, akā ʻoi loa ± 1.6 | |
| 610 < D=1422 | + / - 2.0 | + / - 1.6 |
| > 1422 | Ma ka ʻaelike | |
Pā mānoanoa hoʻomanawanui of kila paipu:
| Mānoanoa pā t mm | Hoʻomanawanui |
| Paipu kila ʻole | |
| 4.0 a emi mai paha | +0.6, -0.5 |
| 4 < t < 25 | +0.150t, -0.125t |
| 25 a ʻoi aku paha | +3.7 a i ʻole +0.1t, ʻoi aku ka nui -3.0 a i ʻole -0.1t, lawe nui |
| Paipu welo | |
| 5.0 a emi mai paha | + / - 0.5 |
| 5.0 < t < 15 | Hoʻonui a hōʻemi paha 0.1 t |
| 15 a oi | + / - 1.5 |
Ka manawa hoʻouna: Sep-26-2023
