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TORICH GB/T 14291 Q235 Q345 Welded Steel Tubes For Mine Liquid Service

Basic Information
Place of Origin: China
Brand Name: TORICH
Certification: ISO 9001,ISO 14001,TS 16949
Model Number: GB/T14291
Minimum Order Quantity: 3 Tons
Price: USD 500-900 Tons
Packaging Details: In plywood case,In wooden box.
Delivery Time: 30 Work Days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 50000Tons/year
Detail Information
Keyword: Steel Tube Type: Steel Tube
Surface: Oiled Material: Q195 Q215 Q235 Q295 Q345
Shape: Round Length: 3-12m
OD: 21-660mm WT: 0.6-18mm
High Light:

welded steel pipe

,

electric resistance welded steel tube


Product Description

Table 1 Outer Diameter,Wall Thicknes,Theoretical Weight and Test Pressure

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

 

TABLE 2 Allowable deviation of outer diameter and wall thickness

 

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

 

TABLE 3 Mechanical Property

Grade

Tensile strengthTORICH GB/T 14291 Q235 Q345 Welded Steel Tubes For Mine Liquid Service 0

N/mTORICH GB/T 14291 Q235 Q345 Welded Steel Tubes For Mine Liquid Service 1

Lower yield strength TORICH GB/T 14291 Q235 Q345 Welded Steel Tubes For Mine Liquid Service 2 /

N/mTORICH GB/T 14291 Q235 Q345 Welded Steel Tubes For Mine Liquid Service 1

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.

 

TABLE 4 Inspection items, test methods and sampling number of steel pipes

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


TORICH GB/T 14291 Q235 Q345 Welded Steel Tubes For Mine Liquid Service 4TORICH GB/T 14291 Q235 Q345 Welded Steel Tubes For Mine Liquid Service 5TORICH GB/T 14291 Q235 Q345 Welded Steel Tubes For Mine Liquid Service 6TORICH GB/T 14291 Q235 Q345 Welded Steel Tubes For Mine Liquid Service 7

 

Contact Details
Richard

Phone Number : +8613736164628

WhatsApp : +8613736164628