JIS G3452

Standards/code

Available specifications (nominal diameter)

Manufacturing
method (raw pipe)

JIS G 3452
SGP

15A～100A
15A～500A

Forge welded
ERW (including hot finishing)

Main features and applications

1) Used for the transportation of water (not water supplies), air, steam, oil, gas, and other fluids at relatively low pressures.

2) Two different kinds: black pipe and white pipe. Operating temperature range: -15 to 350°C.

3) MZN grade groove corrosion-resistant ERW steel pipe is also sold, for protection against the groove corrosion that may occur along the welds of ERW steel pipe.

Dimensions weights and Dimensional Tolerances

Nominal Diameter

OD(mm)

OD Tolerances

WT mm

WT Tolerances

Unit  mass excluding socket kg/m

A

B

Pipes to be cut in taper thread

Other pipes

6

1/8

10.5

±0.5mm

±0.5mm

2.0

+Not specified

-12.5%

0.419

8

1/4

13.8

±0.5mm

±0.5mm

2.3

0.652

10

3/8

17.3

±0.5mm

±0.5mm

2.3

0.851

15

1/2

21.7

±0.5mm

±0.5mm

2.8

1.31

20

3/4

27.2

±0.5mm

±0.5mm

2.8

1.68

25

1

34.0

±0.5mm

±0.5mm

3.2

2.43

32

1 1/4

42.7

±0.5mm

±0.5mm

3.5

3.38

40

1 1/2

48.6

±0.5mm

±0.5mm

3.5

3.89

50

2

60.5

±0.5mm

±1%

3.8

5.31

65

2 1/2

76.3

±0.7mm

±1%

4.2

7.47

80

3

89.1

±0.8mm

±1%

4.2

8.79

90

3 1/2

101.6

±0.8mm

±1%

4.2

10.1

100

4

114.3

±0.8mm

±1%

4.5

12.2

125

5

139.8

±0.8mm

±1%

4.5

15.0

150

6

165.2

±0.8mm

±1.6mm

5.0

19.8

175

7

190.7

±0.9mm

±1.6mm

5.3

24.2

200

8

216.3

±1.0mm

±0.8%

5.8

30.1

225

9

241.8

±1.2mm

±0.8%

6.2

36.0

250

10

267.4

±1.3mm

±0.8%

6.6

42.4

300

12

318.5

±1.5mm

±0.8%

6.9

53.0

350

14

355.6

-

±0.8%

7.9

67.7

400

16

406.4

-

±0.8%

7.9

77.6

450

18

457.2

-

±0.8%

7.9

87.5

500

20

508.0

-

±0.8%

7.9

97.4

KS

ASTM

JIS

API

DIN

BS

Grade Number

GRADE

Grade Number

GRADE

Grade Number

GRADE

Grade Number

GRADE

Grade Number

GRADE

Grade Number

GRADE

D3507

SPP

ASTM A53

Type F

G3452

SGP

5L

A25-1
A25-2
CI グ
CI ケ

2440
2441

St33-2
St33-2

1387
3601

BW320

CHEMICAL COMPOSITION unit (%)

Steel grade

P

S

SGP

0.040max

0.040max

MECHANICAL PROPERTIES

Steel grade

Tensile strength Mpa

Elongation min

SGP

290

30