JIS G3468 304 Stainless Steel Tubes Large Diameter Welded Stainless Steel Pipes For Low Temperature
JIS G3468 SUS304TPY SUS304LTPY SUS309STPY SUS310STPY SUS315J1TPY Stainless Steel Tubes
Large Diameter Welded Stainless Steel Pipes for Low Temperature
Material
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.
Specification
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.
Key Features
- Corrosion Resistance: Excellent resistance to oxidation and corrosion.
- Low-Temperature Performance: Designed for applications in cryogenic environments.
- Weldability: Suitable for welding, ensuring strong joints and durability.
- High Strength: Maintains strength at low temperatures.
Chemical Composition
| 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 |
Mechanical Properties
| 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 |
Steel Grade
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.
Application
These stainless steel tubes are widely used in industries such as:
- Cryogenic applications
- Oil and gas pipelines
- Chemical processing
- Power generation
- Food and beverage processing
Possible Alternative Grades
While the specified grades are optimal for low-temperature applications, alternative grades may include:
- SUS316: Offers better corrosion resistance.
- SUS321: Provides improved high-temperature stability.
- SUS310S: A lower carbon version of SUS310, suitable for high-temperature applications.
Q: Are you trading company or manufacturer ?
A: manufacturer,also can do trading.
Q: How long is your delivery time?
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.
Q: Do you provide samples? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact with me.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.