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The JIS G3468 standard specifies the requirements for large diameter welded stainless steel pipes, particularly for low-temperature applications. The materials covered under this standard include various grades of stainless steel, each with unique properties suited for specific environments.
The specification outlines the dimensions, tolerances, and mechanical properties required for the stainless steel tubes. These tubes are designed to withstand low temperatures while maintaining structural integrity.
| Grade | C (%) | Si (%) | Mn (%) | P (%) | S (%) | Cr (%) | Ni (%) | Mo (%) |
|---|---|---|---|---|---|---|---|---|
| SUS304TPY | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 18.0-20.0 | 8.0-10.5 | - |
| SUS304LTPY | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 18.0-20.0 | 8.0-10.5 | - |
| SUS309STPY | ≤0.20 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 22.0-24.0 | 12.0-15.0 | - |
| SUS310STPY | ≤0.25 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 24.0-26.0 | 19.0-22.0 | - |
| SUS315J1TPY | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 16.0-18.0 | 10.0-12.0 | 2.0-3.0 |
| Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| SUS304TPY | ≥205 | ≥520 | ≥40 | ≤187 |
| SUS304LTPY | ≥205 | ≥520 | ≥40 | ≤187 |
| SUS309STPY | ≥240 | ≥600 | ≥30 | ≤200 |
| SUS310STPY | ≥250 | ≥700 | ≥25 | ≤210 |
| SUS315J1TPY | ≥220 | ≥550 | ≥35 | ≤190 |
The steel grades specified in JIS G3468 are designed to meet the requirements for various applications, particularly in low-temperature environments. Each grade offers distinct advantages based on its chemical composition and mechanical properties.
These stainless steel tubes are widely used in industries such as:
While the specified grades are optimal for low-temperature applications, alternative grades may include:
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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