API 5Lpipeline ferro pipe
Ferro gradus: L360 vel X52 (PSL1)
Compositio chemica requisita:
C: ≤0.28(seamless) ≤0.26(iuncta)
Mn: ≤1.40
P: ≤0.030
S: ≤0.030
Cu: 0,50 minusve
Ni: ≤0.50
Cr: ≤0.50
Mo: ≤0.15
*V+Nb+Ti: ≤0.15
* Contentum Manganum augeri potest per 0.05% pro omni diminutione 0.01% in contento carbonii, usque ad maximum 1,65%
Mechanica proprietates requisita:
Vires cede: ≥360Mpa
Robur distrahens: ≥460Mpa
Fistula ferro iuncta vires distrahentes convellunt: ≥460Mpa
Prolongatio: ≥1940* AXC0.2/4600.9, ubi AXC est crux-sectionalis area exempli distrahentis
Diameter exterior tolerantia fistulae ferri;
| D mm | Finis extra diametrum deviationis mm | |
| Seamless ferro pipe | Iuncta ferro tibia | |
| < 60.3 | -0.8, +0.4 | |
| 60.3 D vel minus 168.3 vel minus | -0.4, +1.6 | |
| 168.3 < D≤610 | ±0.005D, sed maximam ±1.6 | |
| 610 < D≤1422 | + / - 2.0 | + / - 1.6 |
| > 1422 | per consensum | |
Wall crassitudine tolerantia of chalybe Fistula;
| Muri crassitudo t mm | Mm tolerantia |
| Seamless ferro pipe | |
| 4.0 minusve | +0.6, -0.5 |
| 4 < t < 25 | +0.150t, -0.125t |
| 25 vel altius | +3.7 vel +0.1t, quodcumque maius est -3.0 vel -0.1t, ut maior |
| iuncta fistula | |
| 5.0 minusve | + / - 0.5 | |
| 5.0 | < t < 15 | Plus vel minus 0,1 t * |
| 15 | vel | + / - 1.5 |
Steel gradus: L360N or X52N(PSL2)
Chemical compositio requisita:
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
* Contentum Manganum augeri potest per 0.05% pro omni 0.01% diminutione in contento carbonii, usque ad maximum 1,65%.
* Nulla boron adiectio voluntaria permittitur, residua B≤0.001%
Carbon equivalent:
CEP cm : ≤0.25
CEIIW : ≤0.43
* Utere CE cum contentus carbonis maior est quam 0,12%, et utere CE IIW cum P cm contentum carbo minus quam vel 0,12% est.
CEP cm = C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B
Si effectus analysis excoquunt B minor quam 0.0005%, non opus est analysin elementi B in analysi producti includere, et B contentum in carbo aequivalenti CEP cm calculi nulla haberi potest.
CEIIW =C+Mn/6 (C+Mo+V)/5+(Ni+Cu)/15
Mechanica possessiones requisita:
Vires cede: 360-530Mpa
Robora distrahentes: 460-760Mpa
Rationem cede: ≤0.93 (modo ad D > 323.9mm fistulae ferreae)
Fistula ferro iuncta vires distrahentes convellunt: ≥460Mpa
Minimum elongationis: = 1940* AXC0.2/4600.9, ubi AXC est crux-sectionalis area exempli distrahentis.
CVN impulsum test fistulae
Test temperatus 0 C
| D mm e diametro extra specificare | Plena magnitudine CVNindustria absorbuitKVJ |
| DVIII minusve | 27 |
| > 508 ad 762 | 27 |
| > 762 ad 914 | 40 |
| > 914 to 1219 | 40 |
| > 1219 ad 1422 | 40 |
| > 1422 ad 2134 | 40 |
Exterior diametri tolerantia of chalybe Fistula;
| D mm | Finis extra diametrum deviationis | |
| Seamless ferro pipe | Iuncta ferro tibia | |
| < 60.3 | -0.4, +0.8 | |
| 60.3 D vel minus 168.3 vel minus | -0.4, +1.6 | |
| 168.3 < D=610 | ±0.005D, sed maximam ±1.6 | |
| 610 < D= 1422 | + / - 2.0 | + / - 1.6 |
| > 1422 | per consensum | |
Wall crassitudine tolerantia of chalybe Fistula;
| Muri crassitudo t mm | tolerantiae |
| Seamless ferro pipe | |
| 4.0 minusve | +0.6, -0.5 |
| 4 < t < 25 | +0.150t, -0.125t |
| 25 vel altius | +3.7 vel +0.1t, quodcumque est maius -3.0 vel -0.1t, ut maior |
| iuncta fistula | |
| 5.0 minusve | + / - 0.5 |
| 5.0 < t < 15 | Plus vel minus 0,1 t * |
| XV vel | + / - 1.5 |
Post tempus: Sep-26-2023
