304/304L stainless steel pipes and tubes are widely used due to their excellent corrosion resistance, durability, and versatility.

304L stainless steel pipe is composed of a reduced carbon form of the most widely used 18-8 austenitic stainless steel. Excessive welding is possible without localized corrosion because of the reduced carbon concentration. This is because there is less carbide precipitation and less intergranular corrosion when welding stainless steel 304L pipe. Both welded and seamless pipe types are available. Strips of the same grade are welded either spirally or end to end to create the welded pipes.

One billet of material is used to make the stainless steel 304L seamless pipe. As a result, the drawn seamless pipes are considerably smoother. The minimum yield strength and minimum tensile strength of the material are 205 MPa and 515 MPa, respectively. This makes it easier for the pipes to withstand high pressure and severe applications. However, the material has a low resistance to corrosion. Because of its high operating temperatures, the stainless steel 304L welded pipe can be used in elevated temperature applications. Up to 870 degrees Celsius is the operational temperature.

The ASTM A312 TP304L ERW Pipe is a specification for austenitic stainless steel tubular pipes in grade 304. Boilers, heat exchangers, condensers, and other devices are examples of high-pressure and high-temperature uses. According to ANSI B16.5, stainless steel DIN 1.4307 pipe, seamless and welded pipes can be anywhere from ½ to 24 inches in length, whereas electric fusion welded pipes can reach up to 100 inches. For more details about the SS UNS S30403 Pipe and the price chart, don’t hesitate to get in touch with us.
Composition:
304: Contains 18% chromium and 8% nickel, offering excellent corrosion resistance.
304L: A low-carbon version (max 0.03%) that enhances weldability.

Key Properties:
Corrosion Resistance: Resistant to oxidation, rust, and mild chemicals, making it ideal for corrosive environments.
Strength and Heat Resistance: Strong mechanical properties and heat resistance up to 870°C (intermittent) and 925°C (continuous).
Weldability: 304L is preferred for welding as it reduces carbide precipitation, ensuring strong weld joints.
Hygienic Surface: Smooth surface prevents bacterial growth, suitable for food, beverage, and pharmaceutical applications.

Applications:
Food and Beverage: Processing pipes and equipment.
Chemical and Petrochemical: Fluid and gas transport systems.
Construction: Handrails, supports, and structural frameworks.
Oil and Gas: Transport of mildly corrosive materials.
Pharmaceutical: Hygienic piping systems.

Difference Between 304 and 304L:
304 has slightly higher strength but is prone to carbide precipitation during welding. 304L, with lower carbon content, ensures improved weldability without compromising corrosion resistance.

Advantages:
304/304L pipes and tubes are cost-effective, durable, low-maintenance, and easy to fabricate, making them ideal for various industrial applications. Their availability and reliability make them a preferred choice for critical operations.