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Modell: GB/T 14291
Marke: ZU REICH
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
Verpakung: In Bündeln in Holzkiste
Produktivität: 60000 Tons per Year
Transport: Ocean,Land,Air
Ort Von Zukunft: China
Unterstützung über: 60000 tons per year
Zertifikate : ISO 9001 ISO 14001 TS 16949 EN 10204.3.1 LR KR
HS-Code: 7306900090
Hafen: Shanghai,Ningbo
Zahlungsart: 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 Geschweißte Stahlrohre für Mine Liquid Service
Anwendung: Grubenwind, Entwässerung, Entwässerungsgasdruck und die Pulpeförderung mit gerade verschweißtem Stahlrohr
Größe: L - 4 ~ 12m
OD - 21,3-660 mm
WT - 2.5-14mm
Klasse: Q235A, Q235B, Q295A, Q295B, Q345A, Q345B
Herstellungsverfahren: Hochfrequenz-Widerstandsschweißen
Lieferzustand : Stahlrohr sollte gerade Naht Rohr flach Ende Licht Lieferung sein. Das Angebot und die Nachfrage beider Seiten spricht
Dinge über, kann auch nach der Schweißwärmebehandlung Lieferstatus oder anderen Status.
Tabelle 1 Zulässige Abweichung von Außendurchmesser und Wanddicke
Einheit: Millimeter
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 |
Tabelle 2 Mechanische Eigenschaft
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. |
TABELLE 3 Prüfgegenstände, Prüfverfahren und Probenahmezahl von Stahlrohren
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 |
Tabelle 1 Außendurchmesser . Wanddicken . Theoretisches Gewicht und Testdruck
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 |
Produktgruppe : Geschweißtes Stahlrohr
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