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Modelo: GB/T 9808
Marca: Enriquecer
Paquete: embalaje en cajas de madera o paquetes hexagonales con embalaje marinero
productividad: 20000 Tons per Year
transporte: Ocean,Land,Air
Lugar de origen: Zhejiang, China (continental)
Apoyo sobre: 60000 Ton per year
Certificados : ISO9001:2008 ISO14001:2008, TS16949, CE PED, TUV, API
HS-Code: 7304192000
Hafen: Shanghai,Ningbo,Wengzhou
Tipo de Pago: L/C,T/T,D/P,Paypal,Money Gram,Western Union
Incoterm: FOB,CFR,CIF,FCA,CPT
Rango de tamaño: OD: 6-420mm WT: 0.5-50mm L: 4000-12500mm según la aplicación y producción real de los clientes.
Aplicación: Para perforación geológica subterránea para petróleo y minerales, Tubería de perforación minera para exploración minera, para varilla de perforación de cable, Tubo de revestimiento, Tubos de núcleo de barril, Acoplamientos, Tubería de perforación de petróleo, Tuberías de acero de perforación
Grado de acero: ZT380, ZT490, ZT520, ZT540, ZT590, ZT640, ZT740
Tratamiento térmico: Normalizado, Q + T
Material: 37SiMn 38CrMoAl 30CrMnSi (A)
Compositon químico
CHEMICAL COMPOSITION % max | |
P | S |
0.030 | 0.030 |
Doblado
Nominal Wall Thickness/mm |
Bending Degree/(mm/m) |
≤15 |
≤1.5 |
>15 |
≤2.0 |
El grado de flexión de la varilla de perforación con cable no es mayor a 1.0 mm por metro.
Prueba de barra de ruta interna
Diameter of the Path Rod |
Length of the Path Rod(mm) |
d-1.0 |
300 |
d=D(diameter of the tube)-2S(wall thickness of the tube) |
Elementos de prueba y cantidad de muestra para tubos de acero e
Serial number |
Testing item |
Sampling quantity |
1 |
Chemical composition |
1 sample from each furnace |
2 |
Tensile test |
1 sample from each batch |
3 |
Ultrasonic examination |
All |
4 |
Eddy current test |
All |
5 |
Magnetic flux leakage test |
All |
Tabla de comparación de grados
This standard |
JIS G 3465-2006 |
Related industry standard |
ZT380 |
- |
DZ240 |
ZT490 |
- |
DZ250 |
ZT520 |
STM-R780 |
- |
ZT540 |
- |
DZ255 |
ZT590 |
- |
DZ260 |
ZT640 |
- |
DZ265 |
ZT740 |
- |
DZ275 |
Tolerancia
Standard | Producton Method | Tube Size | Tolerance | |
GB/T 9808-2008 | Hot rolled | OD |
(+1.0%D) +0.65 (-0.5%D) -0.35 |
|
WT | ≤10 |
(+15%S) +0.45 (-10%S) -0.35 |
||
>10 | (+12.5%S, -10%S) | |||
Cold Drawn | OD | ±0.50%D or ±0.20 | ||
WT | ±8%S or ±0.15 | |||
Q(N)/ T118-2010 | Cold Drawn | OD | OD | ±0.40%D or ±0.20 |
WT | WT | ±7%S or ±0.15 |
Composición química:
Stee Grade | C | Si | Mn | P max | S max | Cu max | Cr | Mo | B |
T600 (45MnMoB) |
0.43-0.48 | 0.17-0.37 | 1.05-1.35 | 0.02 | 0.015 | 0.20 | ~ | 0.20-0.25 |
0.001- 0.005 |
T750 (30CrMnSiA) |
0.28-0.34 | 0.90-1.20 | 0.80-1.10 | 0.02 | 0.015 | 0.20 | 0.8-1.1 | ~ | ~ |
T850 4140 |
0.38-0.43 | 0.17-0.35 | 0.70-0.90 | 0.02 | 0.015 | 0.20 | 0.9-1.1 |
0.15- 0.25 |
~ |
Propiedades mecánicas:
Steel | Tensile Strength Mpa | Yield Point Mpa | Elongation % | Heat treatment |
Grade | min | |||
ZT380 | 640 | 380 | 14 | Normlized |
ZT490 | 690 | 490 | 12 | Normlized |
ZT540 | 740 | 590 | 12 | Normlized |
ZT590 | 770 | 590 | 12 | Normlized |
ZT640 | 790 | 640 | 12 | QT |
ZT740 | 840 | 740 | 10 | QT |
T850 | 950 | 850 | 15 |
QT |
PRODUCTOS POR GRUPO : Perforación de tubos de acero
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