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ERW steel pipe

ERW steel pipe

ERW Steel Pipes

ERW means High frequency electric resistance welded。 ERW steel pipe "is a straight seam resistance welding pipe, abbreviated as ERW in English. It is used to transport vapor-liquid objects such as oil, natural gas, and water, and can meet various requirements of high and low pressure. Circular ERW steel pipes occupy a light and heavy position in the field of transportation pipes in the world, while square and rectangular ERW steel pipes play a crucial role in the field of structural pipes in the world. The ERW steel pipes produced by Yuantai can be used as structural steel pipes and also as conveying pipes.
ERW steel pipe, LSAW steel pipe, SSAW steel pipe, collectively known as the three major welded pipes
ERW pipe

ERW Pipe Overview

Outer Diameter: 10.3-609mm or customization
Wall Thickness: 0.5-20mm or customization
Length: 0.5-24M or customization
Standard:ASTM A500/501,ASTM A53,,EN10219/10210, JIS G3466,GB/T6728/T3094/3091,CSA G40.20/G40.21
Steel Grade: Gr.A/B/C,S235/275/355/420/460,A36,SS400,Q195/235/345,
X42/52/60/65/70,STKR400/490,300W/350W
Tolerance: as required
Brand: Yuantai Derun or OEM/ODM/OBM
Payment: TT/LC
MOQ: 2-5 Tons
Pipe End:Thread Turning, Flaring, Bevelling, Flattening, etc.
Port:Tianjin Xingang Port
Surface Treatment:bare,oiled,galvanizing,painting,Thermal insulation and anti-corrosion coating.
Delivery Time: 5-60 days(15 days for South East Asia, 45 days for South Africa, 30 days for the Middle East, 45 days for Europe, 5 days for Japan, 30 days for India, 30 days for North America, 7 days for the Russian Far East and 5 days for Korea. 60 days for South America)
Capacity:Annual production of 500000 tons

Benifit Of ERW Steel Pipe

Compared to other welded steel pipes, there are several advantages of ERW steel pipes here.

(1) Better surface quality

ERW steel pipe surface quality is better than the spiral submerged arc welded pipe, ERW steel pipe surface smooth, flat, beautiful, spiral submerged arc welded pipe has internal and external weld margin high.

(2) High precision

In terms of the physical object, ERW steel pipe has been sized and straightened, so the geometry is more accurate than spiral submerged arc welded pipe.

(3) Few weld defects

Spiral submerged arc welded pipe with solution welding, defects of more types, in addition to volumetric defects, there are also line rows of traps. ERW steel pipe weld only line rows of defects, and the weld seam is straight, the inspection process is easy to trace, and the defects in the maximum reflection, once the lack of concealment, ultrasonic reflection is strong, easy to detect.

(4) Low residual stress

As the ERW steel pipe is more fully deformed in the deformation process, coupled with the subsequent changes in sizing flat ellipse, vertical ellipse and shrinkage, the residual stresses in the ERW steel pipe become smaller. Physical tests show that the same specification, same material ERW steel pipe cut along the axis, axial and lateral notch displacement are smaller than the spiral submerged arc welded pipe.

How Is Erw Pipe Made?

Straight seam high-frequency welded pipe (ERW) is a hot rolled coil formed by a forming machine, which utilizes the skin effect and proximity effect of high-frequency current to heat and melt the edges of the pipe blank. Under the action of extrusion rollers, pressure welding is carried out to achieve production. The specific steps for producing an ERW steel pipe are:
1. Uncoiling 2. Leveling 3. Shear butt welding 4. Looper storage 5. Plate probe 6. Trimming 7. Forming 8. High frequency welding 9. Remove internal and external burrs 10. Online ultrasonic testing 11. Qualified ERW steel pipe spray marking 12. Packaging 13. Warehousing
ERW steel pipe production process

ERW Steel Pipe Specification And Weight Per Meter

Here, we have only listed some standard and conventional ERW steel pipe models. If the size you need is not included in this specification table, Yuantai can also customize mass production. You can send your desired size, wall thickness, length, etc. to our customer manager, and we will provide you with a quotation within 2 hours.

外径(O.D.)

壁厚(Wall Thickness)

重量(Weight)

英寸(inch)

毫米.(mm)

单位(SCH)

毫米(mm).

英寸.(inch)

公斤/.(KG/M)

/英尺.( lb/ft)

1/8”

10.3

10S

1.24

0.049

0.28

0.19

1/8”

10.3

STD-40

1.73

0.068

0.37

0.25

1/8”

10.3

XS-80

2.41

0.095

0.48

0.32

1/4”

13.7

10S

1.65

0.065

0.50

0.34

1/4”

13.7

STD-40

2.24

0.088

0.64

0.43

1/4”

13.7

XS-80

3.02

0.119

0.81

0.55

3/8”

17.1

10S

1.65

0.065

0.64

0.43

3/8”

17.1

STD-40

2.31

0.091

0.85

0.57

3/8”

17.1

XS-80

3.20

0.126

1.11

0.75

1/2”

21.3

5S

1.05

0.042

0.53

0.36

1/2”

21.3

10S

2.11

0.083

1.01

0.68

1/2”

21.3

STD-40

2.77

0.109

1.28

0.86

1/2”

21.3

XS-80

3.73

0.147

1.63

1.10

1/2”

21.3

160

4.78

0.188

1.97

1.33

1/2”

21.3

XXS

7.47

0.294

2.57

1.73

3/4”

26.7

5S

1.65

0.065

1.03

0.69

3/4”

26.7

10S

2.11

0.083

1.29

0.87

3/4”

26.7

STD-40

2.87

0.113

1.70

1.14

3/4”

26.7

XS-80

3.91

0.154

2.22

1.49

3/4”

26.7

160

5.56

0.219

2.93

1.97

3/4”

26.7

XXS

7.82

0.308

3.68

2.48

1”

33.4

5S

1.65

0.065

1.31

0.88

1”

33.4

10S

2.77

0.109

2.12

1.42

1”

33.4

STD-40

3.38

0.133

2.53

1.70

1”

33.4

XS-80

4.55

0.179

3.27

2.18

1”

33.4

160

6.35

0.250

4.28

2.88

1”

33.4

XXS

9.09

0.358

5.51

3.71

1 1/4”

42.2

5S

1.65

0.065

1.67

1.12

1 1/4”

42.2

10S

2.77

0.109

2.72

1.83

1 1/4”

42.2

STD-40

3.56

0.140

3.43

2.31

1 1/4”

42.2

XS-80

4.85

0.191

4.51

3.03

1 1/4”

42.2

160

6.35

0.250

5.67

3.81

1 1/4”

42.2

XXS

9.70

0.382

7.85

5.28

1 1/2”

48.3

5S

1.65

0.065

1.92

1.29

1 1/2”

48.3

10S

2.77

0.109

3.14

2.11

1 1/2”

48.3

STD-40

3.68

0.145

4.09

2.75

1 1/2”

48.3

XS-80

5.08

0.200

5.47

3.68

1 1/2”

48.3

160

7.14

0.281

7.32

4.92

1 1/2”

48.3

XXS

10.15

0.400

9.65

6.49

2”

60.3

5S

1.65

0.065

2.41

1.62

2”

60.3

 

2.11

0.083

3.06

2.06

2”

60.3

10S

2.77

0.109

3.97

2.67

2”

60.3

 

3.18

0.125

4.52

3.04

2”

60.3

STD-40

3.91

0.154

5.49

3.69

2”

60.3

XS-80

5.54

0.218

7.56

5.08

2”

60.3

160

8.74

0.344

11.23

7.55

2”

60.3

XXS

11.07

0.436

13.58

9.13

2 1/2”

73.0

5S

2.11

0.083

3.73

2.51

2 1/2”

73.0

10S

3.05

0.120

5.32

3.57

2 1/2”

73.0

30

4.78

0.188

8.12

5.46

2 1/2”

73.0

STD-40

5.16

0.203

8.72

5.86

2 1/2”

73.0

XS-80

7.01

0.276

11.52

7.74

2 1/2”

73.0

160

9.53

0.375

15.08

10.14

2 1/2”

73.0

XXS

14.02

0.552

20.60

13.84

3”

88.9

5S

2.11

0.083

4.56

3.07

3”

88.9

 

2.77

0.109

5.95

4.00

3”

88.9

10S

3.05

0.120

6.52

4.38

3”

88.9

 

3.18

0.125

6.79

4.56

3”

88.9

 

3.58

0.141

7.61

5.12

3”

88.9

 

3.96

0.156

8.38

5.63

3”

88.9

STD-40

5.49

0.216

11.41

7.67

3”

88.9

XS-80

7.62

0.300

15.43

10.37

3”

88.9

160

11.13

0.438

21.56

14.49

3”

88.9

XXS

15.24

0.600

27.96

18.79

3 1/2”

101.6

5S

2.11

0.083

5.23

3.52

3 1/2”

101.6

10S

3.05

0.120

7.49

5.03

3 1/2”

101.6

30

4.78

0.188

11.53

7.75

3 1/2”

101.6

STD-40

5.74

0.226

13.71

9.21

3 1/2”

101.6

XS-80

8.08

0.318

18.83

12.65

4”

114.3

5S

2.11

0.083

5.90

3.97

4”

114.3

10S

3.05

0.120

8.46

5.68

4”

114.3

 

3.18

0.125

8.81

5.92

4”

114.3

 

3.96

0.156

10.89

7.32

4”

114.3

 

4.37

0.172

11.97

8.05

4”

114.3

 

4.78

0.188

13.04

8.76

4”

114.3

 

5.16

0.203

14.03

9.43

4”

114.3

 

5.56

0.219

15.06

10.62

4”

114.3

STD-40

6.02

0.237

16.24

10.91

4”

114.3

 

6.35

0.250

17.08

11.48

4”

114.3

 

7.14

0.281

19.06

12.81

4”

114.3

 

7.92

0.312

20.99

14.11

4”

114.3

XS-80

8.56

0.337

22.55

15.15

4”

114.3

120

11.13

0.438

28.61

19.23

4”

114.3

160

13.49

0.531

33.88

22.77

4”

114.3

XXS

17.12

0.674

41.45

27.85

5”

141.3

 

3.96

0.156

13.55

9.11

5”

141.3

 

4.78

0.188

16.26

10.93

5”

141.3

 

5.56

0.219

18.80

12.63

5”

141.3

STD-40

6.55

0.258

21.99

14.78

5”

141.3

 

7.14

0.281

23.86

16.04

5”

141.3

 

7.92

0.312

26.32

17.69

5”

141.3

XS-80

9.53

0.375

31.28

21.02

5”

141.3

120

12.70

0.500

40.69

27.34

5”

141.3

160

15.88

0.625

49.62

33.34

5”

141.3

XXS

19.05

0.750

58.01

38.98

6”

168.3

 

4.37

0.172

17.84

11.99

6”

168.3

 

4.78

0.188

19.47

13.09

6”

168.3

 

5.16

0.203

20.97

14.09

6”

168.3

 

5.56

0.219

22.54

15.15

6”

168.3

 

6.35

0.250

25.62

17.22

6”

168.3

STD-40

7.11

0.280

28.55

19.19

6”

168.3

 

7.92

0.312

31.64

21.26

6”

168.3

 

8.74

0.344

34.74

23.35

6”

168.3

 

9.53

0.375

37.69

25.33

6”

168.3

XS-80

10.97

0.432

42.99

28.89

6”

168.3

 

12.70

0.500

49.23

33.08

6”

168.3

120

14.27

0.562

54.75

36.79

6”

168.3

 

15.88

0.625

60.30

40.52

6”

168.3

160

18.26

0.719

68.25

45.86

6”

168.3

 

19.05

0.750

70.85

47.61

6”

168.3

XXS

21.95

0.864

80.02

53.77

6”

168.3

 

22.23

0.875

80.87

54.34

8”

219.1

 

4.78

0.188

25.52

17.15

8”

219.1

 

5.16

0.203

27.50

18.48

8”

219.1

 

5.56

0.219

29.58

19.88

8”

219.1

20

6.35

0.250

33.65

22.61

8”

219.1

30

7.04

0.277

37.19

24.99

8”

219.1

 

7.92

0.312

41.66

28.00

8”

219.1

STD-40

8.18

0.322

42.98

28.88

8”

219.1

 

8.74

0.344

45.80

30.78

8”

219.1

 

9.53

0.375

49.75

33.43

8”

219.1

60

10.31

0.406

53.62

36.03

8”

219.1

 

11.13

0.438

57.66

38.75

8”

219.1

XS-80

12.70

0.500

65.30

43.88

8”

219.1

 

14.27

0.562

72.81

48.93

8”

219.1

100

15.09

0.594

76.69

51.53

8”

219.1

 

15.88

0.625

80.31

54.02

8”

219.1

120

18.26

0.719

91.36

61.39

8”

219.1

 

19.05

0.750

94.93

63.79

8”

219.1

140

20.62

0.812

101.95

68.51

8”

219.1

XXS

22.23

0.875

108.96

73.22

8”

219.1

160

23.01

0.906

112.40

75.59

8”

219.1

 

25.40

1.000

122.56

82.36

10”

273.0

 

4.78

0.188

31.94

21.46

10”

273.0

 

5.16

0.203

34.43

23.14

10”

273.0

 

5.56

0.219

37.04

24.89

10”

273.0

20

6.35

0.250

42.18

28.34

10”

273.0

 

7.09

0.279

46.97

31.56

10”

273.0

30

7.80

0.307

51.53

34.63

10”

273.0

 

8.74

0.344

57.34

38.66

10”

273.0

STD-40

9.27

0.365

60.90

40.92

10”

273.0

 

11.13

0.438

72.61

48.79

10”

273.0

XS-60

12.70

0.500

82.35

55.34

10”

273.0

 

14.27

0.562

91.92

61.80

10”

273.0

80

15.09

0.594

96.95

65.15

10”

273.0

 

15.88

0.625

101.71

68.35

10”

273.0

100

18.26

0.719

115.87

77.86

10”

273.0

 

20.62

0.812

129.64

87.11

10”

273.0

120

21.44

0.844

134.35

90.28

10”

273.0

 

22.23

0.875

138.87

93.32

10”

273.0

 

23.83

0.938

147.91

99.39

10”

273.0

XXS-140

25.40

1.000

156.66

105.22

10”

273.0

160

28.58

1.125

174.01

116.93

10”

273.0

 

31.75

1.250

190.81

128.22

12”

323.8

20

6.35

0.250

50.22

33.75

12”

323.8

 

7.14

0.281

56.32

37.85

12”

323.8

 

7.92

0.312

62.32

41.88

12”

323.8

30

8.38

0.330

65.85

44.23

12”

323.8

 

8.74

0.344

68.60

46.10

12”

323.8

STD

9.53

0.375

74.61

50.13

12”

323.8

40

10.31

0.406

80.51

54.10

12”

323.8

 

11.13

0.438

86.69

58.25

12”

323.8

XS

12.70

0.500

98.42

66.14

12”

323.8

60

14.27

0.562

110.03

73.94

12”

323.8

 

15.88

0.625

121.81

81.85

12”

323.8

80

17.48

0.688

133.38

89.63

12”

323.8

 

19.05

0.750

14.62

97.18

12”

323.8

 

20.62

0.812

155.73

104.65

12”

323.8

100

21.44

0.844

161.48

108.51

12”

323.8

 

23.83

0.938

178.07

119.65

12”

323.8

XXS-120

25.40

1.000

188.80

126.87

12”

323.8

 

26.97

1.062

199.42

134.00

12”

323.8

140

28.58

1.125

210.18

141.23

12”

323.8

 

31.75

1.250

230.98

155.21

12”

323.8

160

33.32

1.312

241.10

162.01

14”

355.6

10

6.35

0.250

55.25

37.13

14”

355.6

20

7.92

0.312

68.60

46.1

14”

355.6

 

8.74

0.344

75.52

50.75

14”

355.6

STD-30

9.53

0.375

82.16

55.21

14”

355.6

 

10.31

0.406

88.68

59.59

14”

355.6

40

11.13

0.438

95.51

64.18

14”

355.6

XS

12.70

0.500

108.48

72.90

14”

355.6

 

14.27

0.562

121.33

81.53

14”

355.6

60

15.09

0.594

128.00

86.01

14”

355.6

80

19.05

0.750

159.71

107.32

14”

355.6

100

23.83

0.938

196.94

132.34

14”

355.6

 

25.40

1.000

208.92

140.39

14”

355.6

 

26.97

1.062

220.78

148.36

14”

355.6

120

27.79

1.094

226.93

152.49

14”

355.6

140

31.75

1.250

256.13

172.11

14”

355.6

160

35.71

1.406

284.56

191.21

16”

406.4

10

6.35

0.250

63.28

42.52

16”

406.4

 

7.14

0.281

71.01

47.72

16”

406.4

20

7.92

0.312

78.62

52.83

16”

406.4

 

8.74

0.344

86.58

58.18

16”

406.4

STD-30

9.53

0.357

94.21

63.31

16”

406.4

 

10.31

0.406

101.72

68.36

16”

406.4

 

11.13

0.438

109.59

73.64

16”

406.4

XS-40

12.70

0.500

124.55

83.69

16”

406.4

 

14.27

0.562

139.39

93.67

16”

406.4

 

15.88

0.625

154.48

103.80

16”

406.4

60

16.66

0.656

161.74

108.69

16”

406.4

 

17.48

0.688

169.35

113.80

16”

406.4

 

19.05

0.750

183.81

123.52

16”

406.4

 

20.62

0.812

198.15

133.15

16”

406.4

80

21.44

0.844

205.60

138.15

16”

406.4

 

25.40

1.000

241.06

161.98

16”

406.4

100

26.19

1.031

248.05

166.68

16”

406.4

120

30.96

1.219

289.54

194.56

16”

406.4

 

31.75

1.250

296.31

199.11

16”

406.4

140

36.53

1.438

336.57

226.16

16”

406.4

160

40.49

1.594

369.06

247.99

18”

457.2

20

7.92

0.312

88.60

59.54

18”

457.2

 

8.74

0.344

97.59

65.58

18”

457.2

STD

9.53

0.375

106.23

71.38

18”

457.2

 

10.31

0.406

114.72

77.09

18”

457.2

30

11.13

0.438

123.62

83.07

18”

457.2

XS

12.70

0.500

140.56

94.45

18”

457.2

40

14.27

0.562

157.38

105.75

18”

457.2

 

15.88

0.625

174.50

117.25

18”

457.2

 

17.48

0.688

191.38

128.60

18”

457.2

60

19.05

0.750

207.82

139.65

18”

457.2

80

23.83

0.938

257.13

172.78

18”

457.2

 

25.40

1.000

273.08

183.50

18”

457.2

 

26.97

1.062

288.91

194.14

18”

457.2

 

28.58

1.125

305.01

204.96

18”

457.2

100

29.36

1.156

312.76

210.16

18”

457.2

 

30.18

1.188

320.88

215.62

18”

457.2

 

31.75

1.250

336.33

226.00

18”

457.2

120

34.93

1.375

367.25

246.78

18”

457.2

140

39.67

1.562

412.40

277.12

18”

457.2

160

45.24

1.781

464.03

311.81

20”

508

 

8.74

0.344

108.70

73.04

20”

508

STD-20

9.53

0.375

118.33

79.51

20”

508

 

10.31

0.406

127.82

85.89

20”

508

 

11.13

0.438

137.76

92.57

20”

508

XS-30

12.70

0.500

156.70

105.3

20”

508

 

14.27

0.562

175.51

117.94

20”

508

40

15.09

0.594

185.28

124.50

20”

508

 

15.88

0.625

194.67

130.81

20”

508

 

17.48

0.688

213.59

143.53

20”

508

 

19.05

0.750

232.03

155.92

20”

508

60

20.62

0.812

250.34

168.22

20”

508

 

25.40

1.000

305.35

205.18

20”

508

80

26.19

1.031

314.33

211.22

20”

508

 

30.18

1.188

359.22

241.38

20”

508

 

31.75

1.250

376.66

253.10

20”

508

100

32.54

1.281

385.40

258.97

20”

508

120

38.10

1.500

445.97

299.67

20”

508