Seamless Steel Pipe

JIS Standard Steel Pipe

JIS standard steel pipe refers to steel pipe that adhere to the standards set by the japanese industrial standards (JIS).


JIS pipes are steel pipe that have been created by JIS and meets certain performance requirements. JIS standard pipe covers various types of seamless pipes, including alloy steel, stainless steel, and carbon steel. These standards specify the technical requirements, dimensions, materials, and testing methods for seamless pipes. Some commonly referenced JIS standards for seamless pipes include JIS g3455, JIS g3452, JIS g3429, JIS g3441, JIS g3444, JIS g3445, and JIS g3454.

Specification

Standard Scope:

Standard

Grade

Uses

Sizes

JIS G3429

STH38, STH55, STH67

Seamless Steel Tubes in High Pressure Gas Cylinder

/

JIS G3439

STO-G, STO-H, STO-J, STO-N, STO-C, STO-D, STO-E

Seamless Steel Oil Well, Casing, Tubing and Drill Pipe

/

JIS G3441

SCr 420TK, SCM415TK, SCM418TK, SCM420TK,

SCM430TK, SCM435TK, SCM440TK

Alloy Steel Tubes for General Structural Purpose

21.7-1016.0mm

JIS G3444

STK 30, STK 41, STK 50, STK 51, STK 55

Carbon Steel Pipe for General Structural Purpose

/

JIS G3445

STKM11A,STKM12A, STKM12B, STKM12C, STKM13A,

STKM13B, STKM13C, STKMI4A, STKM14B, STKM14C, STKM15A,

STKM18C, STKM16A, STKM18C, STKM17A, STKM17C, STKM18A,

STKM18B, STKM18C

Carbon Steel Tubes for Machine Structural Purposes

10.5-660.4 mm

JIS G3454

STPG 38, STPG 42

Carbon Steel Pipes for Pressure Service

10.5-660.4 mm

JIS G3455

STS 38, STS 42, STS 49

Carbon Steel Pipes for High Pressure Service

10.5-660.4 mm

JIS G3456

STPT 38, STPT 42, STPT 49

Carbon Steel Pipes for High Temperature Service

10.5-660.4 mm

JIS G3458

STPA 12, STPA 20, STPA 22,

STPA 23, STPA 24, STPA 25, STPA 26

Alloy Steel Pipes for Service

10.5-660.4 mm

JIS G3460

STPL 39, STPL 46, STPL 70

Steel Pipes for Low Temperature Service

15.9-139.8 mm

JIS G3461

STB 35, STB 42, STB 52

Carbon Steel Boiler and Heat Exchanger Tubes

15.9-139.8 mm

JIS G3462

STBAl2, STBAM, STBA20, STBA22,

STBA23, STBA24, STBA25, STEA26

Alloy Steel Boiler and Heat Exchanger Tubes

15.9-139.8 mm

JIS G3464

STBL 39, STBL46, STBL 70

Steel Heat Exchanger Tubes for Low Temperature Service

15.9-139.8 mm

JIS G3465

STM-055, STM-C65, STM-R60, STM-1170, STM-1180, STM-R85

Seamless Steel Tubes for Drilling

Casing: 43-142mm / Hollow Pipes: 34-180mm /

Drilling:33.5-50mm

JIS G3467

STF 42, STFAl2, STFA22, STFA23, 5TFA24, STFA23, STFA26

Steel Tubes for Fired Heater

60.5-267.4mm


Tolerance of JIS seamless pipe:

Tolerance on Outside Diameter in JIS G3441, G3444, G3445

Standard

Tolerance on outside diameter (mm)

JIS G3441
JIS G3444
JIS G3445

=50

±0.5

>50

±1%

JIS G3441
JIS G3444
JIS G3445

<50

±0.25

>50

±0.5%

JIS G3441
JIS G3445

<25

±0.12

>25-40

±0.15

>40-50

±0.18

>5:.60

±0.20

>60-70

±0.23

>70-80

±0.25

>80-90

±0.30

>90-100

±0.40

>100

±0.5%

JIS G3441

<13

±0.25

>13-25

±0.40

>25-40

±0.60

>40-65

±0.80

>65-90

±1.00

>90-140

±1.20

>140

By agreement


Tolerance on Wall Thickness in JIS G3441, G3444, G3445

Standard

Tolerance on wall thickness (mm)

JIS G3441
JIS G3444
JIS G3445

<=4

-0.5,+0.6

>4

-12.5%, +15%

JIS G3441
JIS G3444
JIS G3445

<=3

±0 .3

>3

±10%

JIS G3441
JIS G3445

<=2

±0.15

>2

±8%


Tolerance on Outside Diameter and Wall Thickness in JIS G3454

Process

Tolerance on outside diameter

Tolerance on wall thickness


<40A

±0.5mm

<=4mm

+0.6mm
-0.5%

>50A, <125A

±1%

Hot Rolled
Seamless Pipes

150A

±1.6mm

>4mm

+15%
-12.5%

>200A

±0.8%

More than 350mm,the
Tolerance is ±0.5%

Cold Drawn
Seamless Pipes
and Electric
Resistant
Welded Pipes

<25A

±0.3mm

<=3mm

±0.3mm

>32A

±0.8%

>3mm

±10%

But more than 350mm, the
Tolerance is ±0.5%


Tolerance on Outside Diameter and Wall Thickness in JIS G3455, G3456, G3458, G3460

Process

Tolerance on outside diameter

Tolerance on wall thickness

Hot Rolled
Seamless Pipes

<=50mm

±0.5mm

<=4mm

±0.5mm

>50-160mm

±1%

>160-200mm

±1.6mm

>4mm

±12.5%

>200mm

±0.8%

More that 350mm, the
Tolerance is ±0.5%

Cold Drawn
Seamless Pipes
and Electric Resistant
Welded Pipes

<=40mm

±0.3mm

<=2mm

±0.2mm

>40mm

±0.8%

>2mm

±10%

More than 350 mm the
Tolerance is ±0.5%


Tolerance on Outside Diameter in JIS G3461, G3462, G3464

O.D.

Tolerance on outside diameter

Hot rolled seamless pipes

Seamless pipes through quench and normalized

Cold drawn seamless pipes throng, the hot treatment except quench and normalized

Electric welded pipes except cold drawn

Cold drawn electric welded pipes

mm

<=25

+0.4
-0.8

±0.25

±0.10

±0.15

±0.10

>25.40

±0.25

±0.15

±0.20

±0.15

>40-50

±0.25

±0.20

±0.25

±0.20

>50.60

±0.25

±0.25

±0.30

±0.25

>60-80

±0.30

±0.30

±0.40

±0.30

>80.100

±0.40

±0.40

-0.60,+0.40

±0.40

>100-120

+0.4
-1.2

-0.60,+0.40

-0.60,+0.40

-0.80,+0.40

-0.60,+0.40

>120-160

-0.80,+0.40

-0.80,+0.40

-1.00,+0.40

-0.80,+0.40

>160-200

-1.8,+0.4

-1.20,+0.40

-1.20,+0.40

-1.20,+0.40

-1.20,+0.40

>200

-2.4,+0.4

-1.60,+0.40

-1.60,+0.40

-1.60,+0.40

-1.60,+0.40


Tolerance on Wall Thickness in JIS G3461, G3462, G3464

Wall
thickness
(mm)

Hot rolled seamless pipe

Cold drawn seamless pipe

Electric welded pipe

O.D(mm)

O.D(mm)

O.D(mm)

<=100

>100

<=40

>40

<=40

>40

(%)

<=2

-0,+0.4mm

+22
-0

-0,+0.3mm

+18
0

>2-2.4

-0,+40

+20
-,0

+18
-0

>2.4-3.8

-0,+35

-0,+35

>3.8-4.6

-0,+23

-0,+33

>4.6

-0,+28

-0,+28


Tolerance on the Length in JIS G3461, G3462, G3464

Item

Tolerance an length

OD<50mm

<7m

-0, +7mm

>=7m

Every 3m increase in length, the plus tolerance be increased by 3mm with a maximum of 15mm

OD>=50mm

<7m

-0, +10mm

>=7m

Every 3m increase in length, the plus tolerance be increased by 3mm with a maximum of 15mm

OD: Outside Diameter


Tolerance on Outside Diameter in JIS G3465

Process

Tolerance on outside diameter (mm)

Hot Rolled

<=50

±0.5

>50

±1%

Cold Drawn

<=40

±0.2

>40

±0.5%


JIS Number and Corrensponding Foreign Standards

JIS

ASTM

BS

DIN

NF

ISO

Index Number

Standard Number

Grade

Tupe

Standard Number

Grade

Tupe

Standard Number

Grade

Tupe

Standard Number

Grade

Tupe

Standard Number

Grade

Tupe

Standard Number

Grade

Tupe

G3456

STPT370
(STPT38)

C

A106

GrA

C

3602

HFS360

C

17175

St35.8

C

A49-211

TU37b

C

2604/2

TS5

C

C004






"

CFS360

C

17177

St37.8

C

A49-213

TU37c

C

2604/3

TW9H

C







"

ERW360

C




A49-243

TU37c

C










"

CEW360

C












STPT410
(STPT42)

C

A106

GrB

C

3602

HFS410

C

17175

St45.8

C

A49-211

TU42b

C

2604/2

TS9H

C







"

CFS410

C

17177

St42.8

C

A49-213

TU42c

C










"

ERW410

C




A49-243

TU42c

C










"

CEEW410

C












STPT480
(STPT42)

C

A106

GrC

C

3602

HFS460

C




A49-211

TU48b

C

2604/2

TS14

C







"

CFS460

C




A49-213

TU48c

C










"

ERW460

C
















"

CEEW460

C













Other Range of JIS standards for steel pipes:

JIS seamless pipe according to alloy, stainless steel or carbon. It tests steel’s properties, hardness, resistance to corrosion, pitting, heat treating processes and others. The results are listed in a main JIS steel grade for steel pipe as below.


JIS G3439

Seamless Steel Oil Well, Casing, Tubing and Drill Pipe
Steel grade: STO-G, STO-H, STO-J, STO-N, STO-C, STO-D, STO-E
Application: Seamless Steel Oil Well, Casing, Tubing and Drill Pipe


JIS G3441

Steel grade:SCr 420TK, SCM415TK, SCM418TK, SCM420TK, SCM430TK, SCM435TK, SCM440TK
Application:Alloy Steel Tubes for General Structural Purpose


JIS G3444

Steel grade: STK 30, STK 41, STK 50, STK 51, STK 55
Application: Carbon Steel Tubes for General Structural Purpose

Dimension Range: 21.7-1016.0 mm

Application: Carbon Steel Tubes for Machine Structural Purposes


JIS G3455

Steel grade: STS 38, STS 42, STS 49
Application: Carbon Steel Pipes for High Pressure Service
Dimension Range: 10.5-660.4 mm


JIS G3456

Steel grade: STPT 38, STPT 42, STPT 49
Application: Carbon Steel Pipes for High Temperature Service
Dimension Range:10.5-660.4 mm


JIS G3460

Steel grade:STPL 39, STPL 46, STPL 70
Application: Steel Pipes for Low Temperature Service
Dimension Range:10.5-660.4 mm


JIS G3464

Steel grade: STBL 39, STBL46, STBL 70
Application: Steel Heat Exchanger Tubes for Low Temperature Service
Dimension Range: 15.9-139.8 mm


JIS G3465

Steel grade: STM-055, STM-C65, STM-R60, STM-1170, STM-1180, STM-R85
Application: Seamless Steel Tubes for Drilling
Dimension Range: Casing: 43-142mm / Hollow Pipes: 34-180mm / Drilling:33.5-50mm


JIS G3467

Steel grade: STF 42, STFAl2, STFA22, STFA23, 5TFA24, STFA23, STFA26
Application:Steel Tubes for Fired Heater
Dimension Range:60.5-267.4mm


JIS G3101 SS400

JIS G 3101 SS400 is one of the most commonly used hot rolled general structural steel.
SS400 is a Japanese brand of ordinary steel products

Process

a) Pipes shall be manufactured by a combination of the pipe-making method and finishing method shown in Tables.

b) Pipes are normally as manufactured. Cold-finished tubes shall be annealed after manufacture.

c) Both ends of pipes with a nominal diameter of 300A or smaller shall have threaded or plain ends, and pipes with a nominal diameter of 350A or larger shall have plain ends. However, if the orderer specifies the bevel end, the shape shall be according to the agreement between the parties to delivery.

d) When pipes are manufactured by electric resistance welding, external and internal weld beads shall be removed so as to smoothly follow the shape of the pipe unless otherwise specified. However, if it is difficult to remove the internal weld bead, it may be left as it is.

e) In the case of a threaded pipe, both ends shall be tapered according to JIS B 0203, and one joint according to JIS B 2301 or JIS B 2302 (hereinafter referred to as a socket) shall be screwed into one end. The unscrewed end of the socket shall be protected by a thread protection ring or other suitable means. However, if specified by the purchaser, the socket may be omitted. Inspection of tapered threads shall be in accordance with JIS B 0253.

f) If zinc plating is used, it shall be done before threads are machined into pipes and sockets. In this case, the black tubes and sockets that have passed the inspection are thoroughly cleaned by blasting, pickling, etc., and then galvanized by the hot-dip galvanizing method.

g) The zinc used for galvanizing shall be JIS H 2107 distilled zinc bare metal class 1 or zinc with equivalent or higher quality.

h) Other general matters for zinc plating shall be in accordance with JIS H 8641.

Packing

  • OD 219mm and above (Loose) : Loose + pipe cap + two nylon slings

    OD 219mm and above (Loose) : Loose + pipe cap + two nylon slings

  • OD below 219mm (Bundled) :Hexagonal packing + steel belts bundled (3 steel belts at both ends & 2 steel belts in the middle) woven bag under the st

    OD below 219mm (Bundled) :Hexagonal packing + steel belts bundled (3 steel belts at both ends & 2 steel belts in the middle) woven bag under the st

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