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JIS G3463 Stainless Steel Boiler Tubes are high-performance seamless and welded tubes engineered for critical high-temperature and high-pressure applications. Manufactured to the rigorous Japanese Industrial Standard, these stainless steel boiler tubes offer superior creep strength and exceptional resistance to oxidation and corrosion, making them the ideal choice for heat exchangers, superheaters, and economizers in power generation and petrochemical plants. Explore our range of grades, including SUS 304H TB, SUS 321H TB, SUS 316L TB, and SUS 347H TB.
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Products Description
JIS G3463 Boiler and Heat exhcanger Tubes Grades:
SUS304TB, SUS304HTB, SUS304LTB, SUS309TB, SUS309STB, SUS310TB, SUS310STB, SUS312LTB, SUS316TB, SUS316HTB, SUS316LTB, SUS316TiTB, SUS317TB, SUS317LTB, SUS321TB, SUS321HTB, SUS347TB, SUS347HTB...
JIS G3463 boiler tube Size (mm):
OD: 15.9 mm- 139.8mm
WT: 2.0mm – 14 mm
Length: max 19000mm
JIS G3463 Boiler Tube Chemical composition:
|
Grade |
Chemical composition by mass % |
|||||||
|
C max. |
Si max. |
Mn max. |
P max. |
S max. |
Ni |
Cr |
Mo |
|
|
SUS304TB |
0.08 |
1.00 |
2.00 |
0.040 |
0.030 |
8.00~11.00 |
18.00~20.00 |
- |
|
SUS 304LTB |
0.030 |
1.00 |
2.00 |
0.040 |
0.030 |
9.00~13.00 |
18.00~20.00 |
- |
|
SUS309STB |
0.15 |
1.00 |
2.00 |
0.040 |
0.030 |
12.00~15.00 |
22.00~24.00 |
- |
|
SUS310TB |
0.08 |
1.00 |
2.00 |
0.040 |
0.030 |
12.00~15.00 |
22.00~24.00 |
- |
|
SUS310STB |
0.15 |
1.50 |
2.00 |
0.040 |
0.030 |
19.00~22.00 |
24.00~26.00 |
- |
|
SUS316TB |
0.08 |
1.50 |
2.00 |
0.040 |
0.030 |
19.00~22.00 |
24.00~26.00 |
- |
|
SUS316HTB |
0.08 |
1.00 |
2.00 |
0.040 |
0.030 |
10.00~14.00 |
16.00~18.00 |
2.00~3.00 |
|
SUS316LTB |
0.04~0.10 |
0.75 |
2.00 |
0.040 |
0.030 |
11.00~14.00 |
16.00~18.00 |
2.00~3.00 |
|
SUS316TiTB |
0.030 |
1.00 |
2.00 |
0.040 |
0.030 |
12.00~16.00 |
16.00~18.00 |
2.00~3.00 |
JIS G3463 Heat Exchanger Tube Mechanical properties:
| Grade |
Tensile strength MPa Min. |
Yield Strength MPa Min. |
Elongation % |
||
|
OD≥20 mm |
10mm≤OD＜20mm |
OD＜10mm |
|||
|
SUS304TB |
520 |
206 |
35 min. |
30 min. |
27 min. |
|
SUS304HTB |
520 |
206 |
35 min. |
30 min. |
27 min. |
|
SUS304LTB |
481 |
177 |
35 min. |
30 min. |
27 min. |
|
SUS309TB |
520 |
206 |
35 min. |
30 min. |
27 min. |
|
SUS309STB |
520 |
206 |
35 min. |
30 min. |
27 min. |
|
SUS310TB |
520 |
206 |
35 min. |
30 min. |
27 min. |
|
SUS310STB |
520 |
206 |
35 min. |
30 min. |
27 min. |
|
SUS316TB |
520 |
206 |
35 min. |
30 min. |
27 min. |
|
SUS316HTB |
520 |
206 |
35 min. |
30 min. |
27 min. |
|
SUS316LTB |
481 |
177 |
35 min. |
30 min. |
27 min. |
|
SUS316TiTB |
520 |
206 |
35 min. |
30 min. |
27 min. |
Comparison with Other Standards
JIS G 3463 is the Japanese equivalent of other international standards for boiler tubes:
ASTM A213 / ASME SA213: The most common American standard for seamless ferritic and austenitic alloy-steel boiler tubes. The grades are very similar (e.g., TP304H, TP321H, TP316H).
DIN 17175 / EN 10216-5: European standards for steel tubes for pressure purposes.
GB 5310: The Chinese standard for high-pressure boiler tubes.
Manufacturing and Testing Requirements
Tubes conforming to JIS G 3463 are subject to stringent quality control tests, which typically include:
Hydrostatic Test (or Nondestructive Electric Test): Each tube is tested to ensure it is leak-proof. A hydrostatic test subjects the tube to high internal water pressure, while nondestructive tests like eddy current testing can be used as an alternative.
Tensile Test: To verify mechanical properties.
Flattening Test (for welded tubes) / Flaring Test (for seamless tubes): To check the ductility and soundness of the weld or the base metal.
Hardness Test: In some cases, to ensure the material meets specified hardness values.
Dimensional Inspection: Checking outside diameter, wall thickness, and length to within strict tolerances.
Visual Inspection: Ensuring the surface is free from injurious defects.
Chemical Analysis: Verification of the material composition.
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