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Modelo: GB/T 14291
Marca: ENRIQUECER
Type: Welded
Certification: UL
Application: Fluid Pipe
Section Shape: Round
Surface Treatment: Oiled
Usage: Mine Liquid Service
Technique: ERW
Material: Q235A,Q235B,Q295A,Q295B,Q345A,Q345B
Shape: Round
Length: 4-12M
Product Name: GB/T 14291 Welded Steel Tubes For Mine Liquid Service
OD: 21.3-660mm
WT: 2.5-14mm
Key Word: Welded Steel Tubes For Mine Liquid Service
Paquete: En paquetes en caja de madera
productividad: 60000 Tons per Year
transporte: Ocean,Land,Air
Lugar de origen: China
Apoyo sobre: 60000 tons per year
Certificados : ISO 9001 ISO 14001 TS 16949 EN 10204.3.1 LR KR
HS-Code: 7306900090
Hafen: Shanghai,Ningbo
Tipo de Pago: L/C,T/T,D/P,Paypal,Money Gram,Western UnionL/C,T/T,D/P,Paypal
Incoterm: FOB,CFR,CIF,FCA,CPTFOB,CFR,CIF,FCA,CPT
GB / T 14291 Tubos de acero soldados para el servicio de limpieza de minas
Aplicación: viento de la mina, drenaje, presión del gas de drenaje y transporte de la pulpa con tubería de acero soldado con costura recta
Tamaño: L - 4 ~ 12 m
OD - 21.3-660 mm
WT - 2.5-14mm
Grado: Q235A, Q235B, Q295A, Q295B, Q345A, Q345B
Método de fabricación: soldadura de resistencia de alta frecuencia
Estado de entrega: La tubería de acero debe ser la entrega de la luz del extremo plano del tubo de costura recta. La oferta y la demanda ambas partes habla
todo terminado, también puede de acuerdo con el estado de entrega de tratamiento térmico de soldadura u otro estado.
TABLA 1 Desviación admisible del diámetro exterior y el grosor de la pared
Unidad: milímetro
Nominal outside diameter D |
Allowable deviation of outer diameter |
Permissible deviation of wall thickness |
D≤48.3 |
±0.50 |
±10%S |
48.3<D≤273 |
±1%D |
|
D>273 |
±0.75%D |
TABLA 2 Propiedad mecánica
Grade |
Tensile strength
|
Lower yield strength |
Elongation A% Not less than |
|
D≤168.3 |
D>168.3 |
|||
Q235A,Q235B |
375 |
235 |
15 |
20 |
Q295A,Q295B |
390 |
295 |
13 |
18 |
Q345A,Q345B |
470 |
345 |
13 |
18 |
Note : Tensile test arbitration time is based on longitudinal sample. |
TABLA 3 Elementos de inspección, métodos de prueba y número de muestreo de tuberías de acero
NO |
Inspection project |
Sampling method and test method |
Sampling quantity |
1 |
chemical composition |
GB/T 20066,GB/T 223,GB/T 4336 |
One each furnace(canister) |
2 |
Tensile test |
GB/T 228,GB/T 2975 |
One each batch |
3 |
Tensile test |
GB/T 241 |
One by one |
4 |
Ultrasonic examination |
GB/T18256 |
One by one |
5 |
Eddy current flaw detection |
GB/T 7735 |
One by one |
6 |
Bending test |
GB/T 244 |
Two per batch |
7 |
Flattening test |
GB/T 246 |
Four each roll |
Tabla 1 Diámetro exterior . Wall Thicknes . Peso teórico y presión de prueba
Norminal Outer Diameter(D)/mm |
Norminal Wall Thickness(S)/mm |
Theoretical Weight/(kg/m) |
Test Pressure/MPa |
||
Q235A.Q235B |
Q295A.Q295B |
Q345A.Q345B |
|||
21.3 |
2.5 |
1.16 |
15 |
15 |
15 |
21.3 |
3 |
1.35 |
15 |
15 |
15 |
21.3 |
3.5 |
1.54 |
15 |
15 |
15 |
25 |
2.5 |
1.39 |
15 |
15 |
15 |
25 |
3 |
1.63 |
15 |
15 |
15 |
25 |
3.5 |
1.86 |
15 |
15 |
15 |
25 |
4 |
2.07 |
15 |
15 |
15 |
26.9 |
2.5 |
1.50 |
15 |
15 |
15 |
26.9 |
3 |
1.77 |
15 |
15 |
15 |
26.9 |
3.5 |
2.02 |
15 |
15 |
15 |
26.9 |
4 |
2.26 |
15 |
15 |
15 |
31.8 |
2.5 |
1.81 |
15 |
15 |
15 |
31.8 |
3 |
2.13 |
15 |
15 |
15 |
31.8 |
3.5 |
2.44 |
15 |
15 |
15 |
31.8 |
4 |
2.74 |
15 |
15 |
15 |
33.7 |
2.5 |
1.92 |
15 |
15 |
15 |
33.7 |
3 |
2.27 |
15 |
15 |
15 |
33.7 |
3.5 |
2.61 |
15 |
15 |
15 |
33.7 |
4 |
2.93 |
15 |
15 |
15 |
38 |
2.5 |
2.19 |
15 |
15 |
15 |
38 |
3 |
2.59 |
15 |
15 |
15 |
38 |
3.5 |
2.98 |
15 |
15 |
15 |
38 |
4 |
3.35 |
15 |
15 |
15 |
40 |
2.5 |
2.31 |
15 |
15 |
15 |
40 |
3 |
2.74 |
15 |
15 |
15 |
40 |
3.5 |
3.15 |
15 |
15 |
15 |
40 |
4 |
3.55 |
15 |
15 |
15 |
42.4 |
2.5 |
2.46 |
15 |
15 |
15 |
42.4 |
3 |
2.91 |
15 |
15 |
15 |
42.4 |
3.5 |
3.36 |
15 |
15 |
15 |
42.4 |
4 |
3.79 |
15 |
15 |
15 |
48.3 |
2.5 |
2.82 |
14.6 |
15 |
15 |
48.3 |
3 |
3.35 |
15 |
15 |
15 |
48.3 |
3.5 |
3.87 |
15 |
15 |
15 |
48.3 |
4 |
4.37 |
15 |
15 |
15 |
51 |
2.5 |
2.99 |
13.8 |
15 |
15 |
PRODUCTOS POR GRUPO : Tubería de acero soldada
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