JIS G3461 Carbon Steel Tubes

High-strength Tubes For Efficient Heat Transfer

Jis g3461 carbon steel tubes offer superior strength and corrosion resistance for boiler and heat exchanger systems, ensuring efficient heat transfer up to 350°c.

JIS G3461 STB340 JIS G3461 STB410 JIS G3461 STB510 JIS G3461 Carbon Steel Tubes +5 More

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JIS G3461 Carbon Steel Tubes

High-strength Tubes For Efficient Heat Transfer

Jis g3461 carbon steel tubes offer superior strength and corrosion resistance for boiler and heat exchanger systems, ensuring efficient heat transfer up to 350°c.

JIS G3461 STB340 JIS G3461 STB410 JIS G3461 STB510 JIS G3461 Carbon Steel Tubes +5 More

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JIS G3461 Carbon Steel Tubes are seamless or electric resistance welded tubes designed for boiler pipeline protection and heat exchanger applications, offering exceptional corrosion resistance and durability. Compliant with the JIS G3461 standard, these carbon steel boiler tubes are engineered with grades STB 340, STB 410, and STB 510, making them ideal for high-temperature systems in power plants, chemical industries, and petrochemical facilities.

Manufactured through hot-rolling, cold-drawing, or electric resistance welding, JIS G3461 Carbon Steel Tubes undergo heat treatments like normalizing or annealing to achieve optimal mechanical properties. The tubes’ composition, with controlled carbon (≤0.32%) and manganese (0.30–1.00%), ensures high strength and ductility, while optional coatings like 3LPE or FBE enhance corrosion resistance for harsh environments. Available in sizes from 15.9 mm to 139.8 mm OD, with wall thicknesses from 1.2 mm to 12.7 mm, and lengths up to 12 meters, these tubes meet diverse project needs.

JIS G3461 Carbon Steel Tubes are rigorously tested for tensile strength, flattening, flaring, and hydrostatic performance to ensure compliance with JIS standards. With a minimum tensile strength of 340 MPa (STB 340) to 510 MPa (STB 510), they offer reliable performance in heat exchanger tubes and boiler systems operating up to 350°C. Their corrosion resistance makes them suitable for handling steam, water, and corrosive fluids in applications like superheaters, air preheaters, and condenser tubes.

Compared to other standards like ASTM A192, JIS G3461 Carbon Steel Tubes are optimized for boiler and heat exchanger applications, offering a balance of cost-effectiveness and performance. Their seamless or welded construction supports bending and flanging, with recommended preheating (100–150°C) and post-weld heat treatment (600–650°C) to ensure weld integrity. These tubes are also used in catalyzer tubes for chemical processing, providing durability in corrosive environments.

JIS G3461 Carbon Steel Tubes address critical challenges like pipeline wear, thermal stress, and corrosion in high-temperature industrial systems. Their robust design and corrosion resistance make them a preferred choice for engineers seeking reliable boiler tubes and heat exchanger tubes for demanding applications, ensuring safety, efficiency, and longevity.

Key Benefits

Corrosion Resistance

Optional coatings protect against corrosion in harsh boiler environments.

Heat Transfer Efficiency

Optimized for efficient heat exchange in boilers and condensers.

Versatile Applications

Ideal for superheaters, air preheaters, and catalyzer tubes.

Weldability

Supports welding and flanging for flexible installation.

Cost-Effective

Durable design reduces maintenance and replacement costs.

High Strength

STB 410 and STB 510 grades ensure robust performance.

Comparison of JIS G3461 STB 410 with Other Pipe Grades
Feature	JIS G3461 STB 410	ASTM A192	DIN 17175 St 45.8
Material Type	Carbon Steel	Carbon Steel	Carbon Steel
Temperature Range	Up to 350°C	Up to 538°C	Up to 450°C
Corrosion Resistance	Good (With coatings)	Moderate	Moderate
Applications	Boilers, Heat Exchangers	High-Pressure Boilers	Boilers, Heat Exchangers
Tensile Strength (MPa)	410 (min)	325 (min)	410–530
Yield Strength (MPa)	245 (min)	180 (min)	255 (min)
Key Advantage	Cost-effective heat transfer	High-pressure performance	Balanced strength and durability

Technical Specifications

Chemical Composition of JIS G3461 Carbon Steel Tubes
Element	STB 340 (%)	STB 410 (%)	STB 510 (%)
Carbon (C)	≤0.18	≤0.32	≤0.30
Manganese (Mn)	0.30–0.60	0.30–0.80	0.30–1.00
Phosphorus (P)	≤0.035	≤0.035	≤0.035
Sulfur (S)	≤0.035	≤0.035	≤0.035
Silicon (Si)	≤0.35	≤0.35	0.10–0.35

Mechanical Properties of JIS G3461 Carbon Steel Tubes
Property	STB 340	STB 410	STB 510
Tensile Strength, min (MPa)	340	410	510
Yield Strength, min (MPa)	175	245	295
Elongation, min (%)	35 (Longitudinal)	30 (Longitudinal)	25 (Longitudinal)
Hardness, max (HBW)	143	163	183

Comparison of JIS G3461 Tubes with Other Standards
JIS G3461	ASTM	ASME	BS	DIN	ISO	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.

Heat Treatment Requirements for Different Steel Tube Classes
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/cold finished)	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.

Steel Tube Wall Thickness Tolerances by Manufacturing Method
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 0	+22 0	+0.3 0	+18 0
	Under 2		---	---
	2 or over to and excl. 2.4		+40 0	---	+20 0		+18 0
	2 or over to and excl. 2.4			---
	2.4 or over to or excl. 3.8		+35 0	+35 0
	2.4 or over to or excl. 3.8
	3.8 or over to or excl. 4.6		+33 0	+33 0
	3.8 or over to or excl. 4.6
	4.6 or over		+28 0	+28 0
	4.6 or over
Tolerances on thickness disparity%	---		Within 22.8 of wall thickness		---		---

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Standards and Specifications

• JIS G3461 carbon steel tubes specifications
• JIS G3461 STB 410 seamless boiler tubes
• JIS G3461 STB 340 heat exchanger standards
• JIS G3461 boiler tubes technical requirements
• JIS G3461 seamless tubes certification

Applications

• JIS G3461 seamless tubes for boiler systems
• JIS G3461 carbon steel tubes for superheaters
• JIS G3461 STB 410 air preheater tubes
• JIS G3461 heat exchanger condenser tubes
• JIS G3461 tubes for chemical processing

Material and Grades

• JIS G3461 STB 340 carbon steel tube grades
• JIS G3461 STB 410 boiler tube material
• JIS G3461 STB 510 seamless tube properties
• JIS G3461 carbon steel tubes composition

Manufacturing and Testing

• JIS G3461 seamless boiler tubes manufacturing
• JIS G3461 carbon steel tubes quality testing
• JIS G3461 tubes heat treatment process
• JIS G3461 corrosion-resistant seamless tubes

Procurement and Suppliers

• JIS G3461 carbon steel boiler tubes supplier
• JIS G3461 STB 410 seamless tubes distributors
• JIS G3461 heat exchanger tubes price
• JIS G3461 boiler tubes global suppliers

Dimensions and Customization

• JIS G3461 carbon steel tubes dimensions guide
• JIS G3461 seamless boiler tubes tolerances
• JIS G3461 STB 410 tubes custom sizes
• JIS G3461 heat exchanger tubes length options

Note: JIS G3461 covers seamless and welded carbon steel tubes for boiler and heat exchanger applications up to 350°C. For detailed specifications, refer to the JIS G3461 standard or contact a certified supplier.

JIS G3461 specifies seamless and electric resistance welded carbon steel tubes for boilers and heat exchangers, suitable for high-temperature applications up to 350°C in power plants and chemical industries.

JIS G3461 includes carbon steel grades STB 340, STB 410, and STB 510, designed for varying strength and heat transfer requirements in boiler and heat exchanger systems.

- STB 340: C ≤0.18%, Si ≤0.35%, Mn 0.30–0.60%, P ≤0.035%, S ≤0.035%
- STB 410: C ≤0.32%, Si ≤0.35%, Mn 0.30–0.80%, P ≤0.035%, S ≤0.035%
- STB 510: C ≤0.30%, Si 0.10–0.35%, Mn 0.30–1.00%, P ≤0.035%, S ≤0.035%

- STB 340: Tensile 340 MPa min, Yield 175 MPa min, Elongation 35% min
- STB 410: Tensile 410 MPa min, Yield 245 MPa min, Elongation 30% min
- STB 510: Tensile 510 MPa min, Yield 295 MPa min, Elongation 25% min

OD ranges from 15.9–139.8 mm; WT 1.2–12.7 mm; lengths typically 5–12 m, customizable up to 18 m. Tolerances: OD ±0.5–1%, WT ±10–12.5%.

Produced via hot-rolling, cold-drawing, or electric resistance welding; heat-treated by normalizing or annealing to ensure optimal strength and ductility.

Includes tensile, flattening, flaring, hydrostatic, and non-destructive tests (e.g., ultrasonic, eddy current) to ensure quality and compliance.

Used in boilers (water, smoke, superheater, air preheater tubes) and heat exchangers (condenser, catalyzer tubes) in power plants and chemical industries.

Marked with standard, grade, OD×WT, heat number, and manufacturer ID. Orders specify standard, grade, dimensions, length, and test certificates.

Common equivalents include:
- STB 340 ≈ ASTM A179
- STB 410 ≈ ASTM A192
- STB 510 ≈ DIN 17175 St 45.8

Industrial Applications

JIS G3461 Carbon Steel Tubes are widely used in industries requiring excellent heat transfer and corrosion-resistant performance in boiler and heat exchanger systems.

High-Pressure Boilers

Handles temperatures up to 350°C for efficient steam production.

Superheaters

Supports high-temperature steam for enhanced boiler efficiency.

Air Preheaters

Improves combustion efficiency in boiler systems.

Condenser Tubes

Enables efficient cooling in heat exchanger systems.

Catalyzer Tubes

Resists corrosion for safe chemical processing.

Power Generation Systems

Reliable for heat exchangers and turbines.

JIS G3461 Carbon Steel Tubes

JIS G3461 Carbon Steel Tubes