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Views: 1 Author: Wang Publish Time: 2025-04-16 Origin: Site
Grade 317L is considered to be an improvement or a modified version of marine grade stainless steel. Marine-grade steel is alloy 316, which contains molybdenum content below 3%. The improvisation in the alloy of 317L stainless steel Pipe Fittings is mainly a higher content of molybdenum along with an increase in molybdenum as well. The modification in its chemistry yields an alloy with tougher and stronger properties. 317L covers the standard for wrought austenitic stainless steel fittings for pressure piping applications. The material for fittings shall consist of forgings, bars, plates, or seamless or welded tubular products. Forging or shaping operations shall be performed by hammering, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding, machining, or by a combination of two or more of these operations. All fittings shall undergo heat-treatment.
Besides being a regular austenitic in nature fittings, our Stainless Steel 317L Pipe Fittings consist of a small quantity of Molybdenum which makes them versatile and usable under several chemical surroundings. We are a manufacturer, trader, stockist, supplier and exporter of SS 317L Welded Pipe Fittings that have a massive tensile strength of 515 Mpa and have resistive powers against chemical attacks initiated by sulfur, acetic, formic, and other forms of acids. Our UNS S31703 SS 317L Pipe Nipples are available in a variety of end connections, are low in Carbon thus abating intergranular corrosion due to chromium carbide precipitation and are cold work for increased hardenability. We offer DIN 1.4438 Pipe Caps that are vital to the pulp and paper and food and beverage industry. We are manufacturing Stainless steel 317L forged fittings in both socket weld and threaded form and Stainless steel 317L pipe bends in both standard and non standard sizes, with bending radius of 1D to 10D. We offer ex-stock delivery of various standard size and type Stainless steel 317L pipe fittings, Stainless steel 317L flanges and Stainless steel 317L pipe bends.
Stainless Steel ASTM A403 WP317L Fittings Specifications | ASTM A403/ ASME SA403 |
ASTM A403 WP317L SS Pipe Fittings size | ASTM A403 WP317L Seamless Butt Weld Fittings: 1/2" - 10" |
SS WP317L Pipe Fittings Dimensions | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS4504, BS1560, BS10 |
SS WP317LL Fittings Thickness | SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, XXS available with NACE MR 01-75 |
ASTM A403 WP317L Pipe fittings Types | · ASTM A403 Gr WP317L Buttweld Fitting · ASTM A403 Grade WP317L SS Seamless Fittings · Stainless Steel ASTM A403 Gr WP317L ERW Fittings · ASTM 403 WP 317 SS Welded Fittings · SS WP317L Fabricated Pipe Fittings · ASTM A403 Gr WP317L Bevel Ends Pipe Fittings |
Stainless Steel 317 FittingsType | DN15-DN1200 |
SA 403 WP317L Buttweld Fitting Connection | Welding |
Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom ASTM A403 Grade WP317L Pipe Fitting |
Size Range | ½" NB to 24" NB in Sch 10s, 40s, 80s, 160s, XXS. (DN6~DN100) ASTM A403 317 Buttweld Fitting |
ASTM A403 WP317L Elbows | Angle : 22.5 deg, 30deg, 45 deg, 90 deg, 180 deg, 1.0D, 1.5D, 2.0D, 2.5D, 3D, 4D, 5D, 6D, 7D-40D . |
ASTM A403 WP317L Fittings Manufacturing process | Push, Press, Forge, Cast, etc. |
Stainless Steel 317 Buttweld Pipe Fittings Test Certificates | EN 10204/3.1B |
Specialized manufacturer of | 317 Stainless Steel 90º Elbows, ASTM A403 Gr WP317L 45º Elbows, ASTM A403 Grade WP317L Tees, ASTM A403 WP 317 Crosses, ASTM A403 Grade WP317L Reducers, ASTM A403 WP317L Pipe Cap, ASTM A403 Grade WP317L Stub End, ASTM A403 WP 317 SS Pipe Bend |
317L stainless steel is highly regarded for its exceptional corrosion resistance, making it a popular choice in industries facing harsh environments. Its high chromium content, along with molybdenum and nickel, enhances its ability to resist corrosion from aggressive chemicals.
The alloy is particularly effective against a range of acids, including:
Sulfuric Acid: 317L Pipe Fittings can handle sulfuric acid concentrations up to 5% at temperatures around 120°F (49°C), and it can with stand higher concentrations at lower temperatures.
Phosphoric Acid: This stainless steel grade shows good resistance to phosphoric acid, making it suitable for applications in the food and pharmaceutical industries.
Chloride Environments: The molybdenum content improves resistance to pitting and crevice corrosion, particularly in environments with chlorides, which are known to cause localized corrosion in stainless steels.
The higher molybdenum levels in 317L Pipe Fittings contribute to its superior resistance to pitting and crevice corrosion, especially in chloride-laden environments. This capability is quantified by its Pitting Resistance Equivalent Number (PREN), which is significantly higher than that of 304 and 316 stainless steels. The PREN value indicates the alloy’s ability to withstand localized corrosion, ensuring longevity in corrosive applications.
The low carbon content in 317L Pipe Fittings reduces the risk of intergranular corrosion, which can occur when carbon levels are high, especially during welding. This feature is particularly beneficial during welding, as it reduces the susceptibility of the material to sensitization—a process that can lead to corrosion along the grain boundaries. These properties make 317L an ideal choice for demanding applications in chemical processing, marine environments, and power generation systems. Its ability to maintain structural integrity while resisting corrosion ensures reliable performance in aggressive conditions.
In both the chemical processing and power generation industries, 317L stainless steel Pipe Fittings is highly valued for its resistance to corrosive chemicals and environments. It is used to construct reactors, storage tanks, and piping systems that handle sulfuric acid, phosphoric acid, and chloride-rich environments. Similarly, in flue gas desulfurization (FGD) systems in power plants, 317L’s resilience against acidic and chloride conditions ensures the longevity and efficiency of the equipment.
The food processing industry benefits greatly from 317L stainless steel Pipe Fitting ’s excellent corrosion resistance and low carbon content. These properties prevent contamination by ensuring the equipment remains free from corrosion, which is crucial for maintaining hygiene. Consequently, 317L is used in food processing machinery, storage tanks, and conveyor systems, where cleanliness is paramount.
Marine environments are highly corrosive due to the presence of saltwater. 317L stainless steel Pipe Fittings is ideal for these conditions as it resists pitting and crevice corrosion, which occur when small pits or crevices form and lead to material degradation. This makes 317L Pipe Fittings a preferred choice for shipbuilding components, offshore oil rigs, and coastal structures, where durability against seawater exposure is essential.
In the medical field, the biocompatibility of 317L stainless steel Pipe Fittings is crucial. It can withstand frequent sterilization and exposure to bodily fluids without degrading, making it safe for use in surgical instruments, implants, and hospital equipment. Its resistance to corrosion ensures that it does not react adversely with human tissues, making it a reliable material for medical applications.
The oil and gas industry demands materials that can endure high pressures and temperatures, as well as exposure to corrosive substances. 317L stainless steel Pipe Fittings is employed in components such as pipelines, valves, and heat exchangers due to its robustness. Its ability to maintain structural integrity under extreme conditions is vital for the safety and efficiency of oil and gas operations.
The pulp and paper industry involves processes that expose materials to harsh chemicals and high temperatures. 317L stainless steel Pipe Fittings resistance to corrosive environments, such as those containing sulfur compounds, makes it ideal for equipment used in pulp digesters, bleaching plants, and recovery boilers. Its durability ensures consistent performance and reduces the need for frequent maintenance and replacements.
The textile industry often uses dyes and chemicals that can be highly corrosive. For example, acid dyes can cause significant wear on equipment. 317L stainless steel Pipe Fittings’s excellent resistance to these chemicals makes it suitable for textile processing equipment, including dyeing machines and rollers, ensuring the longevity and reliability of the machinery.
In pharmaceutical manufacturing, maintaining a contamination-free environment is critical. 317L stainless steel Pipe Fittings’s corrosion resistance and ease of cleaning ensure that reactors, mixing vessels, and storage tanks remain free from contaminants. Its ability to withstand repeated sterilization processes without degrading ensures the purity and safety of pharmaceutical products.
Conclusion
The versatility and superior properties of 317L stainless steel Pipe Fittings make it an indispensable material across a wide range of industries. Its exceptional corrosion resistance, high strength, and ability to withstand extreme conditions ensure reliable performance and longevity, making it a preferred choice for demanding applications.
