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The JIS G3463 standard specifies the requirements for stainless steel tubes used in boilers and heat exchangers. The materials covered under this standard include various grades of stainless steel, each offering unique properties suitable for high-temperature and high-pressure applications.
The specification outlines the dimensions, tolerances, and mechanical properties required for stainless steel tubes. These tubes are primarily used in the construction of heat exchangers, boilers, and other pressure vessels.
The following table presents the chemical composition of the various stainless steel grades covered under JIS G3463:
| Grade | C (%) | Si (%) | Mn (%) | P (%) | S (%) | Cr (%) | Ni (%) | Mo (%) |
|---|---|---|---|---|---|---|---|---|
| SUS304TB | 0.08 | 1.00 | 2.00 | 0.045 | 0.030 | 18.00 | 8.00 | - |
| SUS309TB | 0.20 | 1.00 | 2.00 | 0.045 | 0.030 | 22.00 | 12.00 | - |
| SUS310TB | 0.25 | 1.00 | 2.00 | 0.045 | 0.030 | 25.00 | 20.00 | - |
| SUS312LTB | 0.03 | 1.00 | 2.00 | 0.045 | 0.030 | 18.00 | 8.00 | 2.00 |
| SUS316LTB | 0.03 | 1.00 | 2.00 | 0.045 | 0.030 | 16.00 | 10.00 | 2.00 |
The mechanical properties of the stainless steel tubes are crucial for their performance in high-pressure and high-temperature applications. The following table summarizes the key mechanical properties of the grades:
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Hardness (HRB) |
|---|---|---|---|---|
| SUS304TB | 205 | 515 | 40 | 90 |
| SUS309TB | 210 | 520 | 35 | 95 |
| SUS310TB | 210 | 520 | 30 | 95 |
| SUS312LTB | 220 | 530 | 40 | 90 |
| SUS316LTB | 220 | 530 | 40 | 90 |
The steel grades specified in JIS G3463 are designed to meet the requirements of various applications in the boiler and heat exchanger industries. Each grade has been formulated to provide specific properties that enhance performance and durability.
These stainless steel tubes are widely used in:
While the JIS G3463 grades are widely used, there are alternative grades that may be considered based on specific application requirements:
A: manufacturer,also can do trading.
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
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