STAINLESS STEEL BUTT WELD FITTINGS A403 WP347-WX EQUAL TEE B16.9
347 stainless steel tees are mainly used in situations with strict requirements for high-temperature resistance and resistance to intergranular corrosion. They are particularly suitable for pipeline systems that need to operate for a long time in high-temperature environments ranging from 510°C to 815°C and do not require post-weld heat treatment.
Specifically, its core application scenarios fall into the following categories:
Chemical and Petroleum Processing Fields
This is the most classic application scenario for 347 tees. They are widely used in pipelines for conveying various organic acids (such as acetic acid), nitric acid, and other corrosive media. In high-temperature, high-pressure pipelines of refineries and chemical plants, such as those in hydrotreating, catalytic reforming, and other process pipelines where splitting or merging flows is required, they are frequently used.
Power and Energy Industry
In large power stations and nuclear power plants, 347 tees are often used in core areas with high safety and durability requirements, such as:
Boiler Systems: High-temperature steam pipelines, connecting pipe fittings for superheaters and reheaters.
Nuclear Facilities: Primary or secondary circuit pipeline systems that need to withstand high temperatures, high pressure, and radiation environments.
High-Temperature Flue Gas and Exhaust Systems
Benefiting from 347's oxidation resistance at high temperatures, it is also used in aircraft engine exhaust manifolds and branch pipes, as well as in high-temperature flue gas pipelines of various industrial furnaces and gas turbines, to change or distribute the direction of high-temperature airflow.
Other High-Standard Industrial Fields
Additionally, in industries such as shipbuilding, pharmaceutical equipment, food and beverage processing, and papermaking, if the pipeline medium is highly corrosive, or if the process requires high temperatures, sterility, and high demands for material stability, 347 tees are also chosen to ensure the long-term reliable operation of the pipeline system.
Simply put, when selecting pipeline tees, you can decide as follows:
If the medium is weakly corrosive at room temperature, 304 or 316L stainless steel is usually sufficient.
However, if the operating condition involves "high temperature (above 500°C)", "strong corrosion (especially organic acids)", and post-weld heat treatment cannot be performed to eliminate the risk of intergranular corrosion, then choosing a 347 stainless steel tee is key to ensuring the long-term safe and stable operation of the pipeline system.
WP347 BUTT WELD FITTING CHEMICAL COMPONENT
| Element |
347 |
| Carbon |
0.08 |
| Manganese |
2.00 |
| Phosphorus |
0.045 |
| Sulfur |
0.03 |
| Silicon |
1.00 |
| Chromium |
17.00-19.00 |
| Nickel |
9.00-12.00 |
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STAINLESS STEEL BUTT WELD FITTINGS A403 WP347-WX EQUAL TEE B16.9 Images
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