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Modelo: GB/T3091
Marca: ENRIQUECER
Paquete: En caja de madera contrachapada, en caja de madera.
productividad: 30000Tons/year
transporte: Ocean,Land,Air
Lugar de origen: China
Apoyo sobre: 30000Tons/years
Certificados : ISO 9001,ISO 14001,TS 16949
Hafen: ShangHai,NingBo,TianJIN
Tipo de Pago: L/C,T/T,D/P,Paypal,Money Gram,Western Union
Incoterm: FOB,CFR,CIF,FCA,CPT
tamaños:
OD: 21 mm-660 mm WT: 0.6 mm-18 mm Longitud: 3000 mm-12000 mm
Material de acero:
Q195, Q215, Q215B, Q235A, Q235B, Q235, Q345, Q345B
Recubrimiento de zinc:
100-500g si está galvanizado
Solicitud:
Uso de tubos de acero al carbono para la construcción, construcción archivada, líquido de baja presión, agua, gas, aceite, tubería
Tratamiento de superficie :
Recubrimiento galvanizado, engrasado, pintado negro (barniz), resistente a la corrosión, revestimiento anticorrosión
Técnica:
SIERRA soldada con resistencia electrónica (ERW) SIERRA con arco sumergido Soldada helicoidal (SAWH) Arco sumergido con soldadura longitudinal (SAWL)
Material: acero completamente matado, acero de grano fino con un tamaño de grano ferrítico.
Apperance y General:
Las áreas de soldadura están libres de grietas, falta de fusión y falta de penetración
Los tubos están libres de defectos superficiales externos que pueden detectarse mediante examen visual.
Rectitud:
La desviación de la rectitud, de cualquier longitud de tubo L, no debe exceder 0.0015L.
Las desviaciones de la rectitud en cualquier longitud de un metro no deben exceder 3 mm.
Proceso de fabricación del tubo, ruta y condición de entrega:
Rounte No. | Manufacturing Process | Manufacturing routes | Delivery condition | Applicable for quality | |||
Process | Symbol | Starting material | Forming operation | TR1 | TR1 | ||
1a | Electric welded | EW | As(hot) rolled strip | Cold formed(+welding) | As welded | X | - |
1b | NW | X | - | ||||
1c | NP | X | X | ||||
2a | Normalized rolled strip | As welded | X | - | |||
2b | NW | X | X | ||||
2c | NP | X | X | ||||
3 | As(hot)rolled or normalising rolled strip | Cold formed(+welded)+hot stretch reduced at a controlled temperature to give a normailsed condition | NR | X | X | ||
4 | Cold Rolled + streass relieved | Cold formed(+welded) | NP | X | X | ||
11a |
Submerged arc-welded -Longitudinal seam or -helical seam |
SAW: -SAWL -SAWH |
As(hot) rolled plate or strip | Cold formed(+welded) | As welded | X | - |
11b | NW | X | - | ||||
11c | NP | X | X | ||||
12a | Normaliseing rolled plate or strip | Cold formed(+welded) | As welded | X | X | ||
12b | NW | X | X | ||||
12c | NP | X | X | ||||
13a | As in lines 11 or 12 | Normalising formed(+welded) | As welded | X | X | ||
13b | NW | X | X | ||||
13c | NP | X | X | ||||
21 | Continous welded, only for steel grades P195 and P235 with D ≤114.3mm | BW | As(hot) rolled strip | Hot formed(+welded) | As welded | X | - |
a As wekded = no heat treatment. NP=Full pipe normalsed. NW= Normalised weld zone. NR=Normaised rolled b For tubes of quqality TR2, only high-frequency welding, minimum frequency 100kHz,(symbol=HFW) is permited |
PRODUCTOS POR GRUPO : Tubería de acero soldada
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