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JIS G3454 Carbon ERW Steel Pipe pressure service

Pipe ordered under this specification is for pressure service at an approximate maximum temperature of 350℃.

PRODUCT DESCRIPTION

Standard: JIS G 3454

Application of JIS G 3454 Carbon ERW Steel Pipe:

Pipe ordered under this specification is for pressure service at an approximate maximum temperature of 350℃.

Manufacturing Process of JIS G 3454 Carbon ERW Steel Pipe:

Electric resistance welded

Details of JIS G 3454 Carbon ERW Steel Pipe We can supply:

Manufacture:Electric resistance welded pipe

Size: O.D.: 15.0~660mm W.T.: 2~20mm

Grade:STPG370, STPG410

Length: 6M or specified length as required.

Ends: Plain End, Beveled End.

Chemical Composition and mechanical properties JIS G 3454 Black ERW Steel Pipe

Grade and Chemical Composition (%)

GradeC≤Si≤MnP≤S≤
STPG3700.250.350.30~0.900.0400.040
STPG4100.300.350.30~1.000.0400.040







Mechanical Properties
GradeTensile strengthYield strengthElongation %
N/ m㎡N/ m㎡ No.11 or No.12 test piecesNo. 5 test piecesNo. 4 test piece


LongitudinalTransverseLongitudinalTransverse
STPG370370 min215 min30 min25 min28 min23 min
STPG410410 min245 min25 min20 min24 min19 min


Tolerance of outside diameter and wall thickness:

Tolerance of OD and W.T

DivisionTolerance on O.DTolerance on W.T
Cold finished ERW Steel Pipe 24A or under+/-0.3mmUnder 3mm 3mm or over+/-0.3mm +/-10%
32A or over+/-0.8%

For pipes of nominal size 350A or over,the tolerance on O.D maybe determined by the circumferential length. In this case,the tolerance shall be +/-0.5%


Ordering information:

a. Quantity ( feet, meters, or number of lengths)

b. Name of material(seamless carbon or welded)

c. Grade

d. Condition(hot finished or cold finished)

e. Size (outside diameter and wall thickness)

f. Length (specific and random)

g. Hydrostatic test or nondestructive electric test

Appearance for JIS G3454 Carbon ERW Steel Pipes:

Practicality is straight, the end is cut perpendicularly, and there are no harmful defects on the inner and outer surfaces. Defects can be removed, but the minimum wall thickness must be ensured.

Packing for JIS G3454 Carbon ERW Steel Pipes:

a. Bare pipe, black coating or hot dip zinc-coated( customized);

b. In bundles with two cotton slings;

c. Both ends with end protectors;

d. Plain end, bevel end(When required by the purchaser and S≤22mm, the pipe end of should be bevelled, degree: 30° (+5°~0°), and the wall thickness of the root is not reduced by <2.4mm.)

e. Marking.