JIS G3461 Carbon Steel Tubes, JIS G3461 Carbon steel tubes, JIS G3461 Sunny Steeel

Chemical Compositions(%) of JIS G3461

Grade	C	Si	Mn	P	S	Cr	Mo
STB 340	≤0.18	≤0.35	0.30-0.60	≤0.035	≤0.035	/	/
STB 410	≤0.32	≤0.35	0.30-0.80	≤0.035	≤0.035	/	/
STB 510	≤0.25	≤0.35	1.00-1.50	≤0.035	≤0.035	/	/
STBA22	≤0.15	≤0.50	0.30-0.60	≤0.035	≤0.035	0.80-1.25	0.45-0.65
STBA23	≤0.15	0.50-1.00	0.30-0.60	≤0.030	≤0.030	1.00-1.50	0.45-0.65

Application:

JIS G3461 carbon steel tubes are mainly used for exchanging heat on the inside and outside of the tube, such as water tubes, smoke tubes, superherater tubes, air preheater tubes, etc. of boilers, and heat exchanger industries. it is not applicable to the steel tubes for heating furnace and those for heat exchangers for low temperature service.

Mechanical properties

Grade	Yield Strength (Mpa)	Tensile Strength (Mpa)	Elongation (%)
STB 340	≥175	≥340	≥35
STB 410	≥255	≥410	≥25
STB 510	≥295	≥510	≥25
STBA22	≥206	≥412	≥30
STBA23	≥206	≥412	≥30

The tubes shall be manufactured by seamless process, electric resistance welding process, or butt welding process, and those of other grades shall be manufactured by seamless process or electric resistance welding process. The tube shall be as manufactured or as cold-finished condition, or they shall be subjected to appropriate heat treatment.

Equivalent steel grade of JIS G3461

JIS G3461	ASTM	ASME	BS	DIN	ABS	NK	LRS	DNV
STB 340	A178	SA178 A	3059-P1 320	17175 st 35.8	ABS D	KSTB 33	Sec 6 320	Sec 4-E-TS360
STB 410	A178 C	SA178 C	3059-P2 440	17175 st 45.8	ABS F	KSTB 42	Sec 6 410	Sec 4-E-TS410-1
STB 510				17175 19Mn 5				Sec 4-E-TS510

The tubes shall be practically straight. and the two ends shall be at right angles to the axis of the tube. The tubes shall be free from defects detrimental to practical use.

Manufacture method of JIS G3461

Symbol of class	Heat treatment
Symbol of class	Hot finished seamless steel tube	Cold finished seamless steel tube	Electric resistance welded steel tube other than hot finished or cold finished steel tube	Finished electric resistance welded steel tube	Fold finished electric resistance welded steel tube
STB340	As manufactured, as required, low temperature annealing or normalizing may be performed.	Low temperature annealing, normalizing or full annealing.	Normalizing	As manufactured. However, as required, low temperature annealing or normalizing may be performed.	Normalizing
STB 410	As manufactured. However, as required, low temperature annealing or normalizing may be performed.	Low temperature annealing, normalizing or full annealing.	Normalizing	Low temperature annealing	Normalizing
STB 510	Normalizing

We also offer steel fabrication service where steel plates can go through processings like cutting, welding, bending, machining, pre-coating, pre-lined, beveling, or as you require. Our steel mills have fabricating employees that have 5-10 years of working experience. If you are interested in buying JIS G3461 steel tube products, contact us now for the latest price or check the following table for equivalent steel grade of JIS G3461.

JIS G3461 Carbon Steel Pipes Dimensions Tolerance

Tolerances of Wall Thickness

Tolerances	Division of wall thickness (mm)	Division of method of manufacture	Hot finished seamless steel tube		Cold finished seamless steel tube		Electric resistance welded steel tube
Tolerances	Division of wall thickness (mm)	Division of outside diameter (mm)	Under 100	100 or over	Under 40	40 or over	Under 40	40 or over
Tolerances on wall thickness %	Under 2		---	---	+0.4mm	+22 0	+0.3	+18 0
	Under 2		---	---	0		0
	2 or over to and excl. 2.4		+40	---	+20 0		+18 0
	2 or over to and excl. 2.4		0	---
	2.4 or over to or excl. 3.8		+35	+35
	2.4 or over to or excl. 3.8		0	0
	3.8 or over to or excl. 4.6		+33	+33
	3.8 or over to or excl. 4.6		0	0
	4.6 or over		+28	+28
	4.6 or over		0	0
Tolerances on thickness disparity%	---		Within 22.8 of wall thickness		---		---

Tolerances of Outside Diameter

Division of outside diameter	Tolerances on outside diamete
Division of outside diameter	Hot finished seamless steel tube	Cold finished seamless steel tube	Electric resistance welded steel tube other than cold finished	Cold finished electric resistance welded steel tube
Under 25	+0.4 -0.8	【0.10	【1.5	【0.10
25 or over to and excl. 40		【0.15	【0.20	【0.15
40or over to and excl. 50		【0.20	【0.25	【0.20
50 or over to and excl 60		【0.25	【0.30	【0.25
60 or over to and excl. 80		【0.30	【0.40	【0.30
80 or over to and excl. 100		【0.40	+0.40	【0.40
80 or over to and excl. 100		【0.40	-0.60	【0.40
100 or over to and excl.12	+0.4 -1.2	+0.40 -0.60	+0.40 -0.80	+0.40
100 or over to and excl.12		+0.40 -0.60	+0.40 -0.80	-0.60
120 or over to and excl.160		+0.40 -0.80	+0.40 -1.00	+0.40
120 or over to and excl.160		+0.40 -0.80	+0.40 -1.00	-0.80
160 or over to and excl.200	+0.4	+0.40	+0.40	+0.40
160 or over to and excl.200	-1.8	-1.20	-1.20	-1.20
200 or over	+0.4	+0.40	+0.40	+0.40
200 or over	-2.4	-1.60	-1.60	-1.60

Tolerances of Length

Division		Tolerance on length
50 mm or under in outside diameter	7 m or under in length	+0.7 mm
	7 m or under in length	0
	Over 7 m in length	Add 3 mm to the plus side permissible deviation given above for each increase of 3m or its fraction in length. However, the maximum value shall be 15 mm.
Over 50 mm in outside diameter	7 m or under in length	+10mm
	7 m or under in length	0
	Over 7 m in length	Add 3 mm to the plus side permissible deviation given above for each increase of 3m or its fraction in length. However, the maximum value shall be 15mm.

Japanese Industrial Standards for steel

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.

Japanese Industrial Standards 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.

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

Standard	Tolerance on outside diameter (mm)
JIS G3441 JIS G3444 JIS G3445	=50	±0.5
JIS G3441 JIS G3444 JIS G3445	>50	±1%
JIS G3441 JIS G3444 JIS G3445	<50	±0.25
JIS G3441 JIS G3444 JIS G3445	>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

Standard	Tolerance on wall thickness (mm)
JIS G3441 JIS G3444 JIS G3445	<=4	-0.5,+0.6
JIS G3441 JIS G3444 JIS G3445	>4	-12.5%, +15%
JIS G3441 JIS G3444 JIS G3445	<=3	±0 .3
JIS G3441 JIS G3444 JIS G3445	>3	±10%
JIS G3441 JIS G3445	<=2	±0.15
JIS G3441 JIS G3445	>2	±8%

Table 3: 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%	<=4mm	+0.6mm -0.5%
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%		>3mm	±10%

Table 4: 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%	<=4mm	±0.5mm
	>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%		>2mm	±10%

Table 5: Tolerance on Outside Diameter in JIS G3461, G3462, G3464

O.D.	Tolerance on outside diameter
O.D.	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	+0.4 -1.2	-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

Table 6: 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

Table 7: Tolerance on the Length in JIS G3461, G3462, G3464

Item		Tolerance an length
OD<50mm	<7m	-0, +7mm
OD<50mm	>=7m	Every 3m increase in length, the plus tolerance be increased by 3mm with a maximum of 15mm
OD>=50mm	<7m	-0, +10mm
OD>=50mm	>=7m	Every 3m increase in length, the plus tolerance be increased by 3mm with a maximum of 15mm
OD: Outside Diameter

Table 8: Tolerance on Outside Diameter in JIS G3465

Process	Tolerance on outside diameter (mm)
Hot Rolled	<=50	±0.5
Hot Rolled	>50	±1%
Cold Drawn	<=40	±0.2
Cold Drawn	>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	Index Number
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

In the Meiji era, private enterprises were responsible for making standards. However, the Japanese government did have standards and specification documents for procurement purposes for certain articles, such as munitions. These were summarized to form an official standard old JES in 1921. During World War II, simplified standards were established to increase matÃ©riel output. The Industrial Standardization Law was enacted in 1949, which forms the legal foundations for the present Japanese Industrial Standards.

Measurement size & Testing

JIS seamless pipe testing covers many specifications, including alloy, size, toughness and composition.
Those using steel products purchase the product that fulfills the requirements they need for what they are building.
How To Measure Hardness Of Steel Pipe

Packing

Packed in wooden crates, wrapped in plastic, and suitably protected for sea-worthly delivery or as requested.
Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested.

Delivery

Pipes are supplied in hexagonal bundles or round bundles tied with steel strip.
Weight of bundle – up to 5000 kg upon request of customer.
Each bundle is furnished with three tags.

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 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

Application

Alloy steel pipes are ideally suitable for chemical, petrochemicals, and other energy-related applications.

The alloy steel pipe adopts high quality carbon steel, alloy structural steel and stainless & heat resisting steel as raw material through hot rolling or cold drawn to be made.

Alloy steel can be used in process area where carbon steel has limitation such as

High-temperature services such as heater tubes
Low-temperature services such as cryogenic application
Very high presser service such as steam header

As an important element of steel products, alloy steel pipe can be divided into seamless steel pipe and welded steel pipe according to the manufacturing technique and tube billet shape.

Here you can see the common alloy steel grade that you will come across.

For Pipes: ASTM A335 Gr P1, P5, P11, P9
For Wrought Fittings: ASTM A234 Gr.WP5, WP9, WP11
For Forged Fittings: ASTM A182 F5, F9, F11 etc.

Why the application of alloy steel pipe is wider than others

There are many kinds of materials used for transport in industrial production. Specifically we will have more choices and it is not limited to the use of alloy steel pipe. But even in the face of more choices, many people tend to choose alloy steel pipe. People make their own choices will have their own reasons. This means the alloy steel pipe application has its own advantages. Compared with transmission lines made of other materials, after it meets the basic application requirements, its quantity is lighter. Then in the practical application of alloy steel pipe, it will have more advantages because of this. Besides its physical characteristic advantage, it also has economic advantages. The wide application of alloy steel pipe is with kinds of reasons. So in practical usage, we can exploit the advantages to the full, in this way can we get more profits in these applications of alloy steel pipe.

What requirements should alloy steel pipe application meet

The transportation of kinds of gases or liquids in production needs to rely on alloy steel pipe. This shows that the actual role of alloy steel pipe application is important. High temperature resistant and low temperature resistant is the tolerance of temperature. In the practical application of alloy steel pipe, there will be many materials need to be transported. However their temperatures are not the same. So this can be the basic requirement to alloy steel pipe. It needs more corrosion resistance. Corrosion resistant material is the best material during transporting, because it is corrosion resistant. So it can be used in more occasions. And it is definitely very convenient for users.

The biggest advantages of alloy steel pipe

Can be 100% recycled, environmentally friendly, energy-saving, resource conservation, national strategy, national policy to encourage the expansion of the field of application of high-pressure alloy pipe. Of alloy steel pipe total consumption accounted steel in the proportion is only half of the developed countries, to expand the field of use of the alloy steel pipe to provide a wider space for the development of the industry. The future needs of the average annual growth of China’s high-pressure alloy steel pipe long products up to 10-12%.

Specification, standard and identification of alloy steel pipes

Alloy Steel pipe contains substantial quantities of elements other than carbon such as nickel, chromium, silicon, manganese, tungsten, molybdenum, vanadium and limited amounts of other commonly accepted elements such as manganese, sulfur, silicon, and phosphorous.

Industries We Serve

Our team of experienced sales specialists proudly partners with gas and chemical processors, power generation plants, oil refineries, and related industries to offer piping components and value-added services.

The biggest advantages of alloy steel pipe can be 100% recycled, environmentally friendly, energy-saving, resource conservation, national strategy, national policy to encourage the expansion of the field of application of high-pressure alloy pipe. Of alloy tube total consumption accounted steel in the proportion is only half of the developed countries, to expand the field of use of the alloy tube to provide a wider space for the development of the industry. According to the Chinese Special Steel Association alloy pipe Branch Expert Group, the future needs of the average annual growth of China’s high-pressure alloy pipe long products up to 10-12%.

Delivery

Steel pipe delivery status(condition)

Steel pipe delivery status(condition): cold / hard (BK), cold / soft (BKW), after cold stress relief annealing (BKS), annealing (GBK), normalized (NBK).

Condition on delivery of steel pipe

Term	Symbol	Explanation
Cold-finished/hard (cold-finished as-drawn)	BK	No heat treatment after the last cold-forming process. The tubes therefore have only low deformability.
Cold-finished/soft (lightly cold-worked)	BKW	After the last heat treatment there is a light finishing pass (cold drawing) With proper subsequent processing, the tube can be cold-formed (e.g. bent, expanded) within certain limits.
Annealed	GBK	After the final cold-forming process the tubes are annealed in a controlled atmosphere or under vacuum.
Normalized	NBK	The tubes are annealed above the upper transformation point in a controlled atmosphere or under vacuum.

The general cold strip mills, volume should go through continuous annealing (CAPL unit) to eliminate cold hardening and rolling stress, or batch annealing reach the mechanical properties of the corresponding standard specifies. Cold rolled steel surface quality, appearance, dimensional accuracy better than hot-rolled plate, and right-rolled thin product thickness is about 0.18mm, so the majority of users favor.

Cold rolled steel coil substrate products deep processing of high value-added products. Such as electro-galvanized, hot dip galvanized, electro-galvanized fingerprint resistant, painted steel roll damping composite steel, PVC laminating steel plates, etc., so that the excellent quality of these products has a beautiful, high resistance to corrosion, has been widely used.

Cold rolled steel coil finishing after annealing, cut the head, tail, trimming, flattening, smooth, heavy volume, or longitudinal clipboard. Cold-rolled products are widely used in automobile manufacturing, household electrical appliances, instruments, switches, buildings, office furniture and other industries. Steel plate strapping package weight of 3 to 5 tons. Flat sub-volume typically 3 to 10 tons / volume. Coil diameter 6m.