Name: TORICH GB/T 14291 Q235 Q345 Welded Steel Tubes For Mine Liquid Service
Brand: TORICH INTERNATIONAL LIMITED
SKU: GB/T14291
Price: 700.00 USD
Availability: InStock

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

welded steel pipe

electric resistance welded steel tube

Place of Origin:

China

Brand Name:

TORICH

Certification:

ISO 9001,ISO 14001,TS 16949

Model Number:

GB/T14291

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Product Details

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

Highlight:

welded steel pipe

electric resistance welded steel tube

Payment & Shipping Terms

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

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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
Norminal Outer Diameter(D)/mm	Norminal Wall Thickness(S)/mm	Theoretical Weight/(kg/m)	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 strength N/m	Lower yield strength / N/m	Elongation A% Not less than
Grade	Tensile strength N/m	Lower yield strength / N/m	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