Metinox Overseas is a renowned Manufacturers, Suppliers, Stockists, and Exporters of ASTM A312 TP304L Stainless Steel Welded Pipes. Our Stainless Steel 304L Welded Pipes are crafted from high-quality 304L and rigorously tested raw materials. Grade 304L, a lower carbon variant of the 304L grade, ensures weldability without any carbon precipitation issues, making it indispensable for use in harshly oxidizing environments. The welded annealing process is only necessary in applications subjected to extreme stress loads.

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Our Stainless Steel 304L Welded Pipes boast distinctive and enhanced mechanical properties, corrosion resistance, and stainless characteristics due to the chromium addition. These non-magnetic pipes offer excellent corrosion resistance and are utilized in heavy gauge components to improve weldability. They serve to prevent potential sensitization corrosion in welded parts.

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Designed with a combination of ferrite and austenitic phases, these pipes deliver the key advantage of 300 series stainless steel, offering superior strength compared to conventional austenitic steels. They provide a fine balance of high-quality steel, oxidation resistance, and ductility. With no added filler metals, the 304L stainless steel ensures excellent weldability and machinability. Alloying elements like copper, nitrogen, carbon, titanium, molybdenum, and nickel enhance the strength, formality, and other properties of stainless steel.

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Metinox Overseas' SS 304L Welded Pipes offer numerous benefits including weld annealing only required in high-stress applications, suitability for severely corrosive environments, elimination of carbon precipitation during welding due to low carbon content, recyclability, and long service life. Moreover, they provide an attractive, modern appearance at an affordable price point.

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Stainless steel alloys offer greater ductility, lower maintenance costs, a more appealing appearance, increased strength and hardness, a higher work hardening rate, and greater cryogenic toughness compared to regular steel.

These Stainless Steel 304L Welded Pipes find applications across various industries including dairy, power plants, construction, pharmaceuticals, textile, chemical, food processing, oil and gas, shipbuilding, energy, water treatment, and pulp and paper industries. They are available in different types tailored to suit specific industrial requirements. Before delivery, our quality controllers subject these Stainless Steel 304L Welded Pipes to rigorous testing including flaring, flattening, positive material, third-party inspection, chemical, intergranular, Rockwell hardness, and mechanical tests to ensure top-notch quality.

Metinox Overseas takes pride in offering a wide range of widths, thicknesses, and tempers in our ASTM A312 Stainless Steel 304L Welded Pipes to meet diverse customer needs. Our pipes are a versatile grade often supplied in a hardened yet machinable condition for applications requiring high strength, moderate heat, and corrosion resistance.

Stainless Steel 304L Pipes Standard Specifications

Specifications ASTM A312 / ASME SA312
Outside Diameter 6.00 mm OD up to 914.4 mm OD, Sizes up to 24″ NB available Ex-stock, OD Size available Ex-stock
Thickness 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Size 1/2″ NB – 24″ NB
Type Welded
Form Round Pipes, Square Pipes, Rectangular Pipes
Length Single Random, Double Random & Required Length
End Plain End, Beveled End, Treaded

Equivalent Grades of Stainless Steel 304L Pipes

Grade UNS   No Old British Euronorm Swedish   SS Japanese   JIS
BS En No Name
304L S30403 304S11 1.4306 X2CrNi19-11 2352 SUS 304L

Chemical Composition of Stainless Steel 304L Pipes

Grade C Mn Si P S Cr Mo Ni N
304 0.08 2.0 0.75 0.045 0.030 18.0-20.0 8.0-10.5 0.10

Stainless Steel 304L Pipes Mechanical Properties

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
304 515 205 40 92 201

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