Is the AS stainless steel welded connection compatible with standard DIN 2353 24° fittings and both L (light) and S (heavy) series?

Yes. The AS stainless steel welded connection (DIN 2353, 24°) is compatible with standard DIN 2353 24° fittings and is offered in both L (light) and S (heavy) series. Manufactured from AISI 316 stainless steel with an external metric thread and welding connection, it conforms to the DIN 2353 standard, ensuring proper fit and secure integration with other system components across light and heavy duty applications.

Can the AS stainless steel welded connection withstand prolonged exposure to saltwater and aggressive chemicals in marine and chemical-processing environments?

Yes. The AS stainless steel welded connection, manufactured from premium AISI 316 stainless steel and built to the DIN 2353 AS specification, is well suited to prolonged exposure in marine and many chemical-processing environments. AISI 316 offers superior corrosion resistance versus standard stainless steels due to its molybdenum content, which improves performance against chloride-induced pitting and crevice corrosion common in saltwater. The robust welded design and heavy-series (S) option further enhance mechanical integrity and long-term sealing under cyclic loads and pressure. Caveats: while AISI 316 resists most seawater and many aggressive chemicals, extremely corrosive media (strong chlorides at high temperature, halogenated acids, molten salts, or certain reducing acids) can attack it over time. For such conditions, duplex stainless steels, nickel alloys (e.g., Hastelloy, Inconel), or specialized coatings may be required. Also ensure proper welding procedures and post-weld treatments are applied to maintain corrosion resistance at joints. Bottom line: For typical marine and many chemical-processing applications, the AS stainless steel welded connection provides durable, corrosion-resistant performance; evaluate the specific fluid chemistry, temperature, and exposure duration to confirm suitability or consider higher-alloy alternatives when needed.

AS stainless steel welded connection

Additional information

Material	SS – stainless steel

The DIN 2353 welding socket, type AS, is a high‑precision 24° fitting designed with an external metric thread and a reliable welding connection, ensuring secure and durable integration into hydraulic and pneumatic systems. Available in both L (light series) and S (heavy series), it offers flexibility to meet diverse pressure and performance requirements across a wide range of industrial applications. Manufactured from premium AISI 316 stainless steel, the socket provides outstanding resistance to corrosion, making it ideal for use in demanding environments such as marine, chemical, and food processing industries. Its robust construction guarantees long service life, while the standardized DIN 2353 design ensures compatibility and easy installation with other system components. This combination of strength, versatility, and durability makes the AS welding socket a trusted solution for engineers and technicians seeking reliable connections that maintain system integrity even under challenging operating conditions.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]
HD-AS-06L-SS	DIN 2353 fitting AS 6L, AISI 316	-	500
HD-AS-06S-SS	DIN 2353 fitting AS 6S, AISI 316	-	800
HD-AS-08L-SS	DIN 2353 fitting AS 8L, AISI 316	-	500
HD-AS-08S-SS	DIN 2353 fitting AS 8S, AISI 316	-	800
HD-AS-10L-SS	DIN 2353 fitting AS 10L, AISI 316	-	500
HD-AS-10S-SS	DIN 2353 fitting AS 10S, AISI 316	-	800
HD-AS-12L-SS	DIN 2353 fitting AS 12L, AISI 316	-	400
HD-AS-12S-SS	DIN 2353 fitting AS 12S, AISI 316	-	630
HD-AS-14S-SS	DIN 2353 fitting AS 14S, AISI 316	-	630
HD-AS-15L-SS	DIN 2353 fitting AS 15L, AISI 316	-	400
HD-AS-16S-SS	DIN 2353 fitting AS 16S, AISI 316	-	630
HD-AS-18L-SS	DIN 2353 fitting AS 18L, AISI 316	-	400
HD-AS-20S-SS	DIN 2353 fitting AS 20S, AISI 316	-	420
HD-AS-22L-SS	DIN 2353 fitting AS 22L, AISI 316	-	250
HD-AS-25S-SS	DIN 2353 fitting AS 25S, AISI 316	-	420
HD-AS-28L-SS	DIN 2353 fitting AS 28L, AISI 316	-	250
HD-AS-30S-SS	DIN 2353 fitting AS 30S, AISI 316	-	420
HD-AS-35L-SS	DIN 2353 fitting AS 35L, AISI 316	-	250
HD-AS-38S-SS	DIN 2353 fitting AS 38S, AISI 316	-	420
HD-AS-42L-SS	DIN 2353 fitting AS 42L, AISI 316	-	250

The DIN 2353 welding socket, type AS, is a high‑precision 24° fitting designed with an external metric thread and a reliable welding connection, ensuring secure and durable integration into hydraulic and pneumatic systems. Available in both L (light series) and S (heavy series), it offers flexibility to meet diverse pressure and performance requirements across a wide range of industrial applications. Manufactured from premium AISI 316 stainless steel, the socket provides outstanding resistance to corrosion, making it ideal for use in demanding environments such as marine, chemical, and food processing industries. Its robust construction guarantees long service life, while the standardized DIN 2353 design ensures compatibility and easy installation with other system components. This combination of strength, versatility, and durability makes the AS welding socket a trusted solution for engineers and technicians seeking reliable connections that maintain system integrity even under challenging operating conditions.