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  • Torich International Co.,Ltd--The Steel Tube Maker

  •  [Zhejiang,China]
  • Business Type:Distributor/Wholesaler , Manufacturer , Service , Trade Company
  • Main Mark: Africa , Americas , Asia , Caribbean , East Europe , Europe , Middle East , North Europe , Oceania , Other Markets , West Europe , Worldwide
  • Exporter:31% - 40%
  • Certs:GB, ISO9001, ISO14001
  • Description:Steel Pipes,GB/T13793 Steel Pipes,Steel Pipes with a Longitudinal Electric Resistance Weld
Torich International Co.,Ltd--The Steel Tube Maker Steel Pipes,GB/T13793 Steel Pipes,Steel Pipes with a Longitudinal Electric Resistance Weld
Home > Products > Welded Steel Pipe > GB/T13793 10#15#20# Q195 Steel Pipes with a longitudinal Electric Resistance Weld

GB/T13793 10#15#20# Q195 Steel Pipes with a longitudinal Electric Resistance Weld

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    Incoterm: FOB,CFR,CIF,FCA,CPT
    Min. Order: 5 Ton
    Delivery Time: 35 Days

Basic Info

Model No.: GB/T13793

Type: Welded

Certification: API, CE, BSI, UL

Application: Structure Pipe, Fluid Pipe

Section Shape: Round

Surface Treatment: Oiled

Usage: Construction & Decoration

Technique: EFW

Material: Carbon Steel

Additional Info

Packaging: In bundles with seaworthy packing

Productivity: 20000 Tons per Year

Brand: Torich

Transportation: Ocean,Land,Air

Place of Origin: Zhejiang, China (Mainland)

Supply Ability: 60000 Ton per year

Certificate: ISO9001:2008 ISO14001:2008, TS16949, CE PED, TUV, API

HS Code: 7306301100

Port: Shanghai,Ningbo

Product Description

Product Name:TORICH GB/T13793 Material 10#15#20# Q195 215A 235A Steel Pipes with a longitudinal Electric Resistance Weld

Standard:GB/T13793

Size Range: OD: 5-711mm WT: 0.5-50mm Length: 4-12mm or according to customers' actual application and production.

Application:Construction Structure,Liquid Transportation

Steel Grade:10# 15# 20# Q195/Q235/Q345/Q390/Q420

Technology:HFRW

Characteristic:

Good concentricity

Good surface quality

Good OD and ID tolerance

High Precision

Stable quality

Smooth Roughness

TORICH QUALITY ASSURANCE

China Welded Steel Pipe manufacturer, choose the high quality Spiral Welded Steel Pipe, High Frequency Welded Steel Pipe, Black Carbon Steel Welded Pipe, Oval steel tube etc.

Table 1 Tolerance of Outer Diameter Unit:mm

Outer Diameter(D)

General Precesion(PD.A)a

Higher Precision(PD.B)

High Precision(PD.C)

5-20

±0.30

±0.15

±0.05

20-35

±0.40

±0.20

±0.10

35-50

±0.50

±0.25

±0.15

50-80

±1%D

±0.35

±0.25

80-114.3

±0.60

±0.40

114.3-168.3

±0.70

±0.50

168.3-219.1

±0.80

±0.60

219.1-711

±0.75%D

±0.5%D

a Not apply for steel pipe for roller of belt conveyor

Table 2 Tolerance of Wall Thickness Unit:mm

Wall Thickness(t)

General Precesion(PD.A)a

Higher Precision(PD.B)

High Precision(PD.C)

Non-uniform Wall Thicknessb

0.50-0.70

±0.10

±0.04

±0.03

7.5%t

0.70-1.0

±0.05

±0.04

1.0-1.5

±0.06

±0.05

1.5-2.5

±10%t

±0.12

±0.06

2.5-3.5

±0.16

±0.10

3.5-4.5

±0.22

±0.18

4.5-5.5

±0.26

±0.21

5.5

±7.5%t

±5.0%t

a Not apply for steel pipe for roller of belt conveyor

b Not apply for General Precesion steel tube. Non-uniform Wall Thickness means the difference between maximum and minimum values of measured wall thickness on the same cross section.

Table 3 The Bending of Steel tube

Outer Diameter(D)/mm

Bending/(mm/m),No more than

General Precesion(PD.A)

Higher Precision(PD.B)

High Precision(PD.C)

16

1.5

1.0

0.5

Table 4 The Height of Inner Burr Unit:mm

General Precesion

Higher Precision

High Precision

+0.50

-0.20

+0.50

-0.05

+0.20

-0.05

Table 5 Weight coefficient of galvanized steel pipe

Wall thickness t/mm

1.2

.14

1.5

1.6

1.8

2.0

2.2

2.5

2.8

3.0

3.2

3.5

Coefficient c

A

1.106

1.091

1.085

1.080

1.071

1.064

1.058

1.051

1.045

1.042

1.040

1.036

Coefficient c

B

1.085

1.073

1.068

1.064

1.057

1.051

1.046

1.041

1.036

1.034

1.032

1.029

Coefficient c

C

1.064

1.055

1.051

1.048

1.042

1.038

1.035

1.031

1.027

1.025

1.022

1.020

Wall thickness t/mm

3.8

4.0

4.2

4.5

4.8

5.0

5.4

5.6

6.0

6.5

7.0

8.0

Coefficient c

A

1.034

1.032

1.030

1.028

1.027

1.025

1.024

1.023

1.021

1.020

1.018

1.016

Coefficient c

B

1.027

1.025

1.024

1.023

1.021

1.020

1.019

1.018

1.017

1.016

1.015

1.013

Coefficient c

C

1.020

1.019

1.018

1.017

1.016

1.015

1.014

1.014

1.013

1.012

1.011

1.010

Wall thickness t/mm

9.0

10.0

11.0

12.0

12.7

13.0

14.2

16.0

17.5

20.0

Coefficient c

A

1.014

1.013

1.012

1.011

1.010

1.010

1.009

1.008

1.007

1.006

Coefficient c

B

1.011

1.010

1.009

1.008

1.008

1.008

1.007

1.006

1.006

1.005

Coefficient c

C

1.008

1.008

1.007

1.006

1.006

1.006

1.005

1.005

1.004

1.004

Table 6 Mechnical Properties

Steel Grade

Lower yield strength Re1./MPa

Tensile strength

Rm/MPa

Elongation

A/%

D168.3mm

D168.3mm

08.10

195

315

22

15

215

355

20

20

235

390

19

Q195b

195

315

15

20

Q215A,Q215B

215

335

Q235A,Q235B,Q235C

235

370

Q275A,Q275B,Q275C

275

410

13

18

Q345A,Q345B,Q345C

345

470

Q390A,Q390B,Q390C

390

490

19

Q420A,Q420B,Q420C

420

520

19

Q460C,Q460D

460

550

17

Table 7 Weight of hot dip galvanized layer

Weight grade of galvanized layer

Requirement

The total weight of zinc coating per unit area of the inner and outer surfaces

/(g/)

no less than

A

Inside and outside surface

500

B

Inside and outside surface

400

C

Inside and outside surface

300

Table 8 Test items and sampling for steel tubes

Number

Test items

Test frequency

Sampling quantity

1

Smelting analysis

1/furnace

1

2

Finished product analysis

1/furnace

1

3

Tensile test

1/batch

1

4

Weld tensile test

1/batch

1

5

Impact test

1/batch

2 groups in a time, 3 samples in a group

6

Flattening test

1/batch

1 sample on 2 pipes in each batch

7

Bending test

1/batch

1 sample on 2 pipes in each batch

8

Flaring test

1/batch

1 sample on 2 pipes in each batch

9

Hydraulic test

All

All

10

Ultrasonic testing

All

All

11

Eddy current testing

All

All

12

Galvanized layer uniformity test

1/batch

1/batch

13

Galvanized weight determination

1/batch

1/batch

14

Galvanized layer adhesion test

1/batch

1/batch



Welded Steel Pipe,Spiral Welded Steel Pipe,High Frequency Welded Steel Pipe,Black Carbon Steel Welded Pipe,Oval steel tube

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  • GB/T13793 10#15#20# Q195 Steel Pipes with a longitudinal Electric Resistance Weld
  • GB/T13793 10#15#20# Q195 Steel Pipes with a longitudinal Electric Resistance Weld
  • GB/T13793 10#15#20# Q195 Steel Pipes with a longitudinal Electric Resistance Weld
  • GB/T13793 10#15#20# Q195 Steel Pipes with a longitudinal Electric Resistance Weld
  • GB/T13793 10#15#20# Q195 Steel Pipes with a longitudinal Electric Resistance Weld
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