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Modèle: GB/T 14291
marque: TORICH
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
Détails d'emballage: En paquets dans une boîte en bois
productivité: 60000 Tons per Year
transport: Ocean,Land,Air
Lieu d'origine: Chine
Soutenir: 60000 tons per year
Certificats : ISO 9001 ISO 14001 TS 16949 EN 10204.3.1 LR KR
Code SH: 7306900090
Hafen: Shanghai,Ningbo
Type de paiement: 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
Tubes en acier soudés par GB / T 14291 pour le service liquide de mine
Application: vent de mine, drainage, pression de gaz de drainage et transport de pulpe avec le tuyau en acier soudé par couture droite
Taille: L - 4 ~ 12 m
OD - 21.3-660mm
WT - 2.5-14mm
Catégorie : Q235A, Q235B, Q295A, Q295B, Q345A, Q345B
Méthode de fabrication: Soudage par résistance à haute fréquence
L'état de la livraison: Le tuyau d'acier devrait être la livraison de lumière de bout droit de tube de couture droite. L'offre et la demande des deux côtés parle
les choses peuvent aussi, selon l'état de livraison du traitement thermique de soudure ou autre statut.
TABLEAU 1 Déviation admissible du diamètre extérieur et de l'épaisseur de la paroi
Unité: millimètre
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 |
TABLEAU 2 Propriété mécanique
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. |
TABLEAU 3 Éléments d'inspection, méthodes d'essai et nombre d'échantillonnage des tuyaux en acier
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 |
Tableau 1 Diamètre extérieur . Épaisseurs de paroi . Poids théorique et pression d'essai
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 |
Groupes de Produits : Tuyau d'acier soudé
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