2507 Stainless Steel Welded Pipe
2507 stainless steel welded pipe manufacturers have ample inventory, with outer diameters ranging from 16-219mm, wall thicknesses from 0.8-6mm, and standard lengths of 6 meters. Custom sizes and lengths are available upon request. Polishing and brushing treatments are supported. These pipes are widely used in flue gas desulfurization, seawater engineering, and pipelines for heavily corrosive chemicals.
The price of 2507 is higher than 2205, primarily due to its higher alloy composition, significantly increased chromium, nickel, and molybdenum content, leading to higher raw material procurement costs. Its smelting and forming process has stringent standards, resulting in greater production difficulty, lower yield, and limited production capacity with tight supply. Furthermore, its superior corrosion resistance and pressure resistance make it suitable for high-end, heavily corrosive environments, requiring higher quality control of materials. These multiple cost factors contribute to the higher selling price.
Comparison Table of 2205 and 2507 Stainless Steel Welded Pipes
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Comparison Items |
2205 |
2507 (Super Duplex Stainless Steel) |
|
National Standard Grade |
S32205 |
S32750 |
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Alloy Ratio |
22% Chromium, 5% Nickel, 3% Molybdenum |
25% Chromium, 7% Nickel, 4% Molybdenum, higher alloy content |
|
Corrosion Resistance Grade |
Excellent |
Extremely strong, far exceeding 2205 |
|
Chloride Ion Resistance |
Good |
Top-tier, stronger resistance to pitting and crevice corrosion |
|
Mechanical Strength |
High |
Higher resistance, superior pressure resistance |
|
Applicable Temperature |
-40℃~315℃ |
-40℃~300℃ |
|
Welding Performance |
Easy to weld, simple process |
Higher welding requirements, requires strict process control |
|
Product Price |
High cost performance |
Approximately 20% more expensive than 2205 |
|
Applicable Scenarios |
Seawater equipment, general chemical industry, desulfurization pipelines |
Suitable for high-concentration brine, strong acid corrosion, and harsh deep-sea conditions |
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