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JIS G3456 G3454 G3461 Carbon Steel Pipe

JIS G3456 seamless steel pipe is used for high temperature service, JIS G3454 seamless steel pipe for Pressure Service, JIS G3461 Carbon Steel Tubes for Boiler and Heat Exchanger.

Description

JIS G3456 G3454 G3461 carbon steel pipe

Chemical composition

Standard

grade

Chemical Composition %

C

Si

Mn

P

S

JIS G3456

STPT 370

0.25max.

0.10~0.35

0.30~0.90

0.035 max.

0.035 max.

STPT 410

0.30max.

0.10~0.35

0.30~1.00

0.035 max.

0.035 max.

STPT 480

0.33max.

0.10~0.35

0.30~1.00

0.035 max.

0.035 max.

JIS G3454

STPG 370

0.25 max.

0.35 max.

0.30 to 0.90

0.040 max.

0.040 max.

STPG 410

0.30 max.

0.35 max.

0.30 to 1.00

0.040 max.

0.040 max.

JIS G3461

STB35

0.18Max

0.35Max

0.30~0.60

0.035Max

0.035Max

STB42

0.32Max

0.35Max

0.30~0.60

0.035Max

0.035Max

STB52

0.25Max

0.35Max

1.00~1.50

0.035Max

0.035Max


Mechanical Properties

Standard

grade

Tensile strength

Yield point

kgf/mm2 (N/mm2)

kgf/mm2 (N/mm2)

JIS G3456

STPT 370

38 (373)min.

22(216) min.

STPT 410

42(412)min.

25(245) min.

STPT 480

49(481)min.

28(275) min.

JIS G3454

STPG 370

38 (373)min

22(216) min

STPG 410

42(412)min

25(245) min

JIS G3461

STB 340

340(35)min.

175(18) min.

STB 410

410(42) min.

255(26) min.

STB 510

510(52) min.

295(30) min.

Hydrostatic Test

Hydrostatic Test Pressure Unit : kgf/cm3

(bar)

Schedule(Sch)

10

20

30

40

60

80

Hydrostatic Test Pressure

20 (20)

35 (34)

50 (49)

60 (59)

90 (88)

120 (118)

Remark: 1 bar=105Pa

Mark on pipes
Each JIS G3456 G3454 G3461 carbon steel pipe having passed the inspection shall be marked with the following items. However, the smaller pipes or other pipes specified by the purchaser may be bundled together and marked for each bundle by a suitable mean. In both cases, the order of arranging the marked items is not specified.
When approved by the purchaser, a part of the items may be omitted.

1.Standard and grade.

2.manufacturing technique.

3.Size (diameter, thickness, length).

4.Weight.

5.Manufacturer’s name or its identifying brand.

6.Heat number.

7.Other symbol can be made by purchaser’s request

Packing
For JIS G3456 G3454 G3461 carbon steel pipe
Surface protect: varnish painting(common protect), hot dipped galvanized, 3LPE (anti-corrosion coating)
Ends type: PE(plain ends), BE (bevel ends)
Pipe ends protect: plastic ends cap, pipe ends protector

Delivery
Encasement is done by our experienced forklift and crane driver in our factory.


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