JIS seamless pipes

Japanese Industrial Standards (JIS) developed by the organization apply to a wide variety of industrial services and technologies such as automobiles, metallurgy, ships and medical equipment.

The method for making cold-drawn seamless pipes involves taking a round “billet” or bar of steel and boring it in the center, turning it, cutting it, heating it to make it more pliable, then “drawing” it (extruding or pulling it) to make it a longer and thinner tube.

JIS- Japanese Industrial Standards

(JIS) specifies the standards used for industrial activities in Japan.

G – Ferrous Materials and Metallurgy
H – Nonferrous Materials and Metallurgy

Product name	Executive standard	Dimension (mm)	Steel code/ Steel grade
High pressure and high temperature service	JIS G3454/5/6	19.05-114.3 x 2.0-14	JIS G3454(STPG370, STPG410), JIS G3455(STS370, STS410, STS480), JIS G3456(STPT370, STPT410, STPT480)
Tubes used for machinery, automobiles, bicycles, furniture, appliances and other machine parts.	JIS G3445	19.05-114.3 x 2.0-14	STKM11A, STKM12(A,B,C), STKM13(A,B,C), STKM14(A,B,C).
Carbon steel/Alloy steel boiler and heat exchanger tubes	JIS G3461,2	19.05-114.3 x 2.0-14	G3461(STB340, STB410, STB510)
Seamless steel tubes for high pressure gas cylinder	JIS G3429	19.05-114.3 x 2.0-14 Length: max 16000mm	G3462(STBA22, STBA23)STH11, STH12, STH21, STH22

The Industrial Standardization Law was revised in 2004 and the JIS mark product certification system was changed. Standards are named like “JIS X 0208:1997″, where X denotes area division, followed by four digits (or five digits for some of the standards corresponding ISO standards) and the revision release year.

• G – Ferrous Materials and Metallurgy
• H – Nonferrous Materials and Metallurgy

MTC IN EN 10204.3

EN 10204:2004 is for metallic products-and this norm tell us things about Types of inspection documents. There are no material standards.

Mostly material is defined with its chemical composition and mechanical properties in a public standars like ISO, EN, JIS, ASTM etc.

What is JIS?

Japanese Industrial Standards (JIS) specifies the standards used for industrial activities in Japan. The standardization process is coordinated by Japanese Industrial Standards Committee and published through Japanese Standards Association.

Tolerance of JIS seamless pipe

Table 1: Tolerance on Outside Diameter in JIS G3441, G3444, G3445

APPLICATION	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

Table 2: Tolerance on Wall Thickness in JIS G3441, G3444, G3445

APPLICATION	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%

APPLICATION	TOLERANCE ON OUTSIDE DIAMETER		TOLERANCE ON WALL THICKNESS
	<40A	±0.5mm	<=4mm	+0.6mm
	>50A, <125A	±1%		-0.005
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%

Table 4: Tolerance on Outside Diameter and Wall Thickness in JIS G3455, G3456, G3458, G3460

APPLICATION	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%

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 G 3101 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,