Aplicaciones
El acero para tuberías se utiliza principalmente en el transporte de mezclas de petróleo, gas natural y agua de carbón y por tuberías, esta serie de productos tiene una composición química estable, rendimiento estable, buena forma excelente, calidad de la superficie, alta resistencia, buena tenacidad y soldabilidad a baja temperatura.
Condición de entrega:
La serie de productos se entrega en estado laminado en caliente y TMCP.
Grados de acero
Especificación API 5L |
GB / T14164 |
ISO 3183-1 |
GB / T 9711.1 |
|||
PSL1 |
PSL2 |
PSL1 |
PSL2 |
PSL1 |
PSL2 |
|
L245/B |
L245M / BM |
L245/B |
L245M / BM |
L245 |
L245/B |
L245M / BM |
L290/X42 |
L290M/X42M |
L290/X42 |
L290M/X42M |
L290 |
L290/X42 |
L290M/X42M |
L320/X46 |
L320M/X46M |
L320/X46 |
L320M/X46M |
L320 |
L320/X46 |
L320M/X46M |
L360/X52 |
L360M/X52M |
L360/X52 |
L360M/X52M |
L360 |
L360/X52 |
L360M/X52M |
L390/X56 |
L390M/X56M |
L390/X56 |
L390M/X56M |
L390 |
L390/X56 |
L390M/X56M |
L415/X60 |
L415M/X60M |
L415/X60 |
L415M/X60M |
L415 |
L415/X60 |
L415M/X60M |
L450/X65 |
L450M/X65M |
L450/X65 |
L450M/X65M |
L450 |
L450/X65 |
L450M/X65M |
L485/X70 |
L485M/X70M |
L485/X70 |
L485M/X70M |
L485 |
L485/X70 |
L485M/X70M |
- |
L555M/X80M |
- |
L555M/X80M |
L555 |
- |
L555M/X80M |
- |
L625M/X90M |
- |
L625M/X90M |
- |
- |
L625M/X90M |
- |
L690M/X100M |
- |
L690M/X100M |
- |
- |
L690M/X100M |
Composición química
Calificación |
Composición química(%) |
|||||||
C |
Si |
Minnesota |
P |
S |
Nótese bien |
V |
Ti |
|
B |
≤0.22 |
≤0.35 |
0.70~1.20 |
≤0.025 |
≤0.015 |
- |
- |
- |
X42 |
≤0.20 |
≤0.35 |
0.65~1.25 |
≤0.025 |
≤0.015 |
- |
- |
- |
X46 |
≤0.35 |
0.75~1.35 |
≤0.025 |
≤0.015 |
- |
- |
- |
|
X52 |
≤0.35 |
≤0.025 |
≤0.015 |
- |
- |
- |
||
X56 |
≤0.40 |
0.75~1.35 |
≤0.025 |
≤0.015 |
≥0.005 |
≥0.005 |
≥0.005 |
|
X60 |
≤0.40 |
≤0.025 |
≤0.015 |
|||||
X65 |
≤0.40 |
≤1.65 |
≤0.025 |
≤0.015 |
≤0.10 |
≤0.10 |
≤0.10 |
|
X70 |
≤0.40 |
≤1.65 |
≤0.025 |
≤0.015 |
≤0.10 |
≤0.10 |
≤0.10 |
|
X80 |
≤0.40 |
≤1.85 |
≤0.025 |
≤0.015 |
≤0.10 |
≤0.10 |
≤0.10 |
Propiedades mecánicas
Calificación |
Ensayo de tracción |
Rt0.5/Rm |
V Prueba de impacto 0℃(J) |
Diámetro de prueba de flexión de 180 ° |
||
Rt0.5(MPa) |
Rm(MPa) |
A50(%) |
||||
B |
245-450 |
415-760 |
≥21 |
≤0.91 |
≥40 |
D=2.0a |
X42 |
290-495 |
415-760 |
≥21 |
≤0.91 |
≥42 |
D=2.0a |
X46 |
320-525 |
435-760 |
≥20 |
≤0.91 |
D=2.0a |
|
X52 |
360-530 |
460-760 |
≥19 |
≤0.93 |
D=2.0a |
|
X56 |
390-545 |
490-760 |
≥18 |
≤0.93 |
D=2.0a |
|
X60 |
415-565 |
520-755 |
≥17 |
≤0.93 |
D=2.0a |
|
X65 |
450-600 |
535-760 |
≥17 |
≤0.93 |
≥47 |
D=2.0a |
X70 |
485-635 |
570-760 |
≥16 |
≤0.93 |
≥63 |
D=2.0a |
X80 |
555-705 |
625-825 |
≥15 |
≤0.93 |
≥96 |
D=2.0a |
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