EN

EN

Pipe

Precision-Engineered Pipes 

for Secure Fluid Delivery

Transmission / Line Pipe

Our Transmission and Line Pipes are available in X80 and lower grades,
manufactured to API 5L, GOST, GB/T 9711, and low-pressure fluid transmission standards.

Customized production is also available based on client-specified standards and requirements.

Application

Oil & Gas Transmission, Low-Pressure Fluid Transmission, Water Transmission, Carbon Capture & Hydrogen/Geothermal Pipelines

Standard

API Spec 5L, GOST, GB/T 9711.1-1997, GB/T 9711.2-1999, and low-pressure fluid transmission specifications

Steel Grade

Up to X80

Welding Method

HFW (High-Frequency Welding), SSAW (Spiral-seam Submerged Arc Welded)

Pipe Length

8 -12.5m

| Production Range

Nominal Mass Per Meter - HFW* | kg/m

Nominal Mass Per Meter - HFW* | kg/m

Nominal Mass Per Meter - SSAW* | kg/m

Nominal Mass Per Meter - SSAW* | kg/m

Outside Diameter

in (mm)

OD (in)

Outside Diameter
in (mm)

Wall Thickness | in (mm)

Wall Thickness | in (mm)

0.19
(4.8)

0.19

0.19
(4.8)

0.2
(5.2)

0.2

0.2
(5.2)

0.22
(5.6)

0.22

0.22
(5.6)

0.25
(6.4)

0.25

0.25
(6.4)

0.28
(7.1)

0.28

0.28
(7.1)

0.34
(8.7)

0.34

0.34
(8.7)

0.37
(9.5)

0.37

0.37
(9.5)

0.41
(10.3)

0.41

0.41
(10.3)

0.44
(11.1)

0.44

0.44
(11.1)

0.47
(11.9)

0.47

0.47
(11.9)

0.5
(12.7)

0.5

0.5
(12.7)

0.56
(14.3)

0.56

0.56
(14.3)

0.63
(15.9)

0.63

0.63
(15.9)

0.69
(17.5)

0.69

0.69
(17.5)

0.71
(18)

0.71

0.71
(18)

0.75
(19.1)

0.75

0.75
(19.1)

0.81
(20.6)

0.81

0.81
(20.6)

0.86
(22)

0.86

0.86
(22)

8.63 (219.1)

8.63

8.63 (219.1)

25.4

25.4

25.4

27.5

27.5

27.5

29.5

29.5

29.5

33.7

33.7

33.7

37.1

37.1

37.1

43.4

43.4

43.4

47.6

47.6

47.6

51.8

51.8

51.8

56

56

56

60.2

60.2

60.2

64.4

64.4

64.4

10.75 (273)

10.75

10.75 (273)

31.7

31.7

31.7

34.3

34.3

34.3

36.9

36.9

36.9

42.1

42.1

42.1

49.5

49.5

49.5

56.9

56.9

56.9

65.1

65.1

65.1

68.8

68.8

68.8

72.5

72.5

72.5

77.7

77.7

77.7

82.9

82.9

82.9

12.75 (324)

12.75

12.75 (324)

-

-

44

44

44

50

50

50

55.5

55.5

55.5

67.6

67.6

67.6

73.7

73.7

73.7

79.6

79.6

79.6

93

93

93

99

99

99

105

105

105

14 (355.6)

14

14 (355.6)

-

-

29.12

55.2

55.2

55.2

61

61

61

74.6

74.6

74.6

81.1

81.1

81.1

87.6

87.6

87.6

94.3

94.3

94.3

100.9

100.9

100.9

107.7

107.7

107.7

121

121

121

16 (406.4)

16

16 (406.4)

-

29.12

63.1

63.1

63.1

69.9

69.9

69.9

85.3

85.3

85.3

93

93

93

100.7

100.7

100.7

103.3

103.3

103.3

115.7

115.7

115.7

123.3

123.3

123.3

138.7

138.7

138.7

154.1

154.1

154.1

18 (457)

18

18 (457)

-

-

29.12

71.1

71.1

71.1

78.8

78.8

78.8

96.2

96.2

96.2

104.8

104.8

104.8

113.5

113.5

113.5

122

122

122

130.6

130.6

130.6

139.1

139.1

139.1

156.5

156.5

156.5

174

174

174

20 (508)

20

20 (508)

-

-

29.12

79.2

79.2

79.2

86.7

86.7

86.7

107

107

107

116.7

116.7

116.7

126.4

126.4

126.4

136

136

136

145.6

145.6

145.6

155.1

155.1

155.1

174.5

174.5

174.5

193.8

193.8

193.8

22 (559)

22

22 (559)

-

-

29.12

87.2

87.2

87.2

96.6

96.6

96.6

118.1

118.1

118.1

128.7

128.7

128.7

139.4

139.4

139.4

150

150

150

160.7

160.7

160.7

171.1

171.1

171.1

24 (610)

24

24 (610)

24.89

-

24.89

-

29.12

-

95.2

95.2

95.2

105.6

105.6

105.6

129.1

129.1

129.1

140.8

140.8

140.8

152.4

152.4

152.4

163.8

163.8

163.8

175.5

175.5

175.5

187.1

187.1

187.1

210.3

210.3

210.3

26 (660)

26

26 (660)

24.89

-

24.89

-

29.12

103

103

103

114.3

114.3

114.3

140

140

140

153.1

153.1

153.1

164.7

164.7

164.7

177.7

177.7

177.7

190.4

190.4

190.4

202.5

202.5

202.5

227.8

227.8

227.8

28 (711)

28

28 (711)

24.89

-

24.89

-

29.12

111.2

111.2

111.2

123.3

123.3

123.3

150.7

150.7

150.7

164.3

164.3

164.3

178

178

178

191.6

191.6

191.6

205.4

205.4

205.4

218.7

218.7

218.7

245.7

245.7

245.7

273

273

273

30 (762)

30

30 (762)

24.89

-

24.89

-

29.12

119.2

119.2

119.2

132.2

132.2

132.2

161.7

161.7

161.7

176.4

176.4

176.4

190.9

190.9

190.9

205.5

205.5

205.5

220.2

220.2

220.2

234.7

234.7

234.7

263.7

263.7

263.7

292.9

292.9

292.9

32 (813)

32

32 (813)

24.89

-

24.89

-

29.12

127.2

127.2

127.2

141.1

141.1

141.1

172.6

172.6

172.6

188.3

188.3

188.3

203.8

203.8

203.8

219.5

219.5

219.5

235.2

235.2

235.2

250.7

250.7

250.7

281.6

281.6

281.6

312.8

312.8

312.8

34 (864)

34

34 (864)

24.89

-

24.89

-

29.12

135.3

135.3

135.3

150

150

150

183.5

183.5

183.5

200.2

200.2

200.2

216.9

216.9

216.9

233.5

233.5

233.5

250.2

250.2

250.2

266.9

266.9

266.9

299.7

299.7

299.7

332.5

332.5

332.5

36 (914)

36

36 (914)

24.89

-

24.89

-

29.12

143.4

143.4

143.4

158.9

158.9

158.9

194.3

194.3

194.3

212

212

212

229.7

229.7

229.7

247.2

247.2

247.2

264.9

264.9

264.9

282.3

282.3

282.3

317.3

317.3

317.3

352.1

352.1

352.1

387.3

387.3

387.3

38 (965)

38

38 (965)

24.89

-

24.89

-

29.12

-

151.5

151.5

151.5

167.8

167.8

167.8

205.2

205.2

205.2

224

224

224

242.8

242.8

242.8

261.1

261.1

261.1

279.8

279.8

279.8

297.3

297.3

297.3

335.2

335.2

335.2

372.1

372.1

372.1

409.4

409.4

409.4

40 (1016)

40

40 (1016)

24.89

-

24.89

-

29.12

33.7

-

176.8

176.8

176.8

216.2

216.2

216.2

235.9

235.9

235.9

255.6

255.6

255.6

275

275

275

294.7

294.7

294.7

312.3

312.3

312.3

353.2

353.2

353.2

392.2

392.2

392.2

431.4

431.4

431.4

42 (1067)

42

42 (1067)

24.89

-

24.89

-

29.12

33.7

-

183.3

183.3

183.3

227.1

227.1

227.1

247.7

247.7

247.7

268.4

268.4

268.4

289

289

289

309.7

309.7

309.7

330.3

330.3

330.3

371.3

371.3

371.3

412.1

412.1

412.1

452.9

452.9

452.9

44 (1118)

44

44 (1118)

24.89

-

24.89

-

29.12

33.7

-

194.7

194.7

194.7

238

238

238

259.6

259.6

259.6

281.3

281.3

281.3

303

303

303

324.6

324.6

324.6

346.2

346.2

346.2

389.2

389.2

389.2

432.1

432.1

432.1

475

475

475

46 (1168)

46

46 (1168)

24.89

-

24.89

-

29.12

33.7

-

203.6

203.6

203.6

248.8

248.8

248.8

271.4

271.4

271.4

294

294

294

316.7

316.7

316.7

339.3

339.3

339.3

361.8

361.8

361.8

406.9

406.9

406.9

451.8

451.8

451.8

496.5

496.5

496.5

48 (1219)

48

48 (1219)

24.89

24.89

29.12

33.7

212.4

212.4

212.4

259.6

259.6

259.6

283.6

283.6

283.6

307

307

307

330.7

330.7

330.7

354.1

354.1

354.1

377.8

377.8

377.8

424.9

424.9

424.9

471.7

471.7

471.7

518.5

518.5

518.5

52 (1321)

52

52 (1321)

24.89

24.89

29.12

33.7

230.4

230.4

230.4

281.8

281.8

281.8

307.4

307.4

307.4

332.8

332.8

332.8

358.5

358.5

358.5

383.8

383.8

383.8

409.6

409.6

409.6

460.7

460.7

460.7

511.6

511.6

511.6

562.4

562.4

562.4

56 (1422)

56

56 (1422)

24.89

24.89

29.12

33.7

248.2

248.2

248.2

303.4

303.4

303.4

331

331

331

358.5

358.5

358.5

386.2

386.2

386.2

413.8

413.8

413.8

441.4

441.4

441.4

496.4

496.4

496.4

551.4

551.4

551.4

606.2

606.2

606.2

622.5

622.5

622.5

660.4

660.4

660.4

712.2

712.2

712.2

29.12

60 (1524)

60

60 (1524)

24.89

24.89

29.12

33.7

266

266

266

325.3

325.3

325.3

354.9

354.9

354.9

384.5

384.5

384.5

414.1

414.1

414.1

443.7

443.7

443.7

473.4

473.4

473.4

532.4

532.4

532.4

591.3

591.3

591.3

650.2

650.2

650.2

668

668

668

708.4

708.4

708.4

764

764

764

24.89

63.78(1620)

63.78

63.78(1620)

24.89

24.89

29.12

33.7

345.8

345.8

345.8

377.3

377.3

377.3

408.8

408.8

408.8

440.4

440.4

440.4

471.9

471.9

471.9

503.4

503.4

503.4

566.2

566.2

566.2

629

629

629

691.6

691.6

691.6

710.3

710.3

710.3

753.6

753.6

753.6

812.8

812.8

812.8

867.9

867.9

867.9

64 (1626)

64

64 (1626)

24.89

24.89

29.12

33.7

347

347

347

378.7

378.7

378.7

410.4

410.4

410.4

442.1

442.1

442.1

473.7

473.7

473.7

505.3

505.3

505.3

568.4

568.4

568.4

631.3

631.3

631.3

694.2

694.2

694.2

712.9

712.9

712.9

756.5

756.5

756.5

815.8

815.8

815.8

871.3

871.3

871.3

About Our Welding Method:

HFW

(High-Frequency Welding)

(High-Frequency Welding)

Nominal Outside Diameter: φ177.8 – φ508mm
Nominal Wall Thickness: 3.4 – 15.9mm

SSAW

(Spiral-seam Submerged Arc Welded)

(Spiral-seam Submerged Arc Welded)

Nominal Outside Diameter: φ177.8 – φ508mm
Nominal Wall Thickness: 3.4 – 15.9mm

| Advanced Equipments & Manufacturing Capacity

HFW

SSAW

Advanced FFX rolling mill (Japan)

Reliable on-line and off-line UT inspection equipments (Canada)

High-speed medium-frequency heat treatment machine (America)

Skelp Accumulator

High-speed cut-off flying saw

Hydraulic pressure testing unit

High-speed medium-frequency heat treatment machine (America)

HFW

SSAW

Professional Forming Machine

Advanced Welding Machine

Edge Milling Machine

Inter & extern weld tracking device from Meta (England)

X-ray Inspection Equipment

Hydraulic pressure testing unit with 3000 tons’ stress

Ultrasonic Inspection Machine

Pipe End Beveling Machine

| Manufacturing Process

| Inspection Instrument and Equipment

Spectro direct-read spectrometer
(26 kinds of chemical element can be inspected)

Spectro direct-read spectrometer (26 kinds of chemical element can be inspected)

Digital displayed hydraulic pressure universal machine

Impact testing machine

Drop weight tear tester

Metallographic microscope

Hardness tester & Flattening tester

Carbon & Sulfur analysis instrument

Bending Testing Machine

100% basse metal automatic ultrasonic testing

100% X-ray inspection

computer recording system

100% ultrasonic detect after hydro-test

100% pipe end manual ultrasonic detect

100% steel pipe visual inspection

100% internal weld industrial television

Magnetic particle test

Talk to our Specialist.

Our team will get in touch with you shortly. We are ready to discuss your needs and any questions you might have in detail.

Talk to our Specialist.

Our team will get in touch with you shortly. We are ready to discuss your needs and any questions you might have in detail.

Talk to our Specialist.

Our team will get in touch with you shortly.
We are ready to discuss your needs and any questions
you might have in detail.

Talk to our Specialist.

Our team will get in touch with you shortly. We are ready to discuss your needs and any questions you might have in detail.