304/ 304L Stainless Steel Hollow Section

Mill plant: QINGSHAN steel

Standards: ASTM A511, 554, A778

Grades: 304/304L

Round Tube Size:OD: 4-323mm, Wall Thickness: 0.2-6.0mm

Rectangle Tube Size: 10*20-130*170mm, Wall Thickness: 0.2-6.0mm

Square Tube Size: 4*4mm-150*150mm, Wall Thickness:  0.2-6.0mm

Type: 180 Polish, Mill Finish, Welded-Ornamental

Surface treatment: Polishing, wire drawing

Wiho metals is a leading stainless steel tubing supplier, manufacturer and processing center of the broadest stainless tubing and hollow section in China. We produce and stock round, rectangle or square welded mechanical and structural steel tubing in various sizes and shapes. The 304/304L stainless steel hollow sections we supplying with a wide array of diameters and thicknesses and have the ability to customize your order with our stainless tube processing services.

The 304 and 304L Stainless steel Round/Square/Rectangle hollow section in ASTM A511, A554, A778  for structural and ornamental applications where mechanical properties, appearance, or corrosion resistance is needed. The tubes are available as mill finish or polished in a variety of exterior dimensions and wall thicknesses. It also offers both strength and weldability for other applications.


304/ 304L Chemical Composition

Grades C Mn Si P S Cr,min Ni,min N
304 ≤0.07 ≤2.0 ≤0.75 ≤0.045 ≤0.03 18.0-20.0 8.0- 10.5 /
304L ≤0.03 ≤2.0 ≤0.75 ≤0.045 ≤0.03 18.0-20.0 8.0- 12.0 0.10


304/ 304L Mechanical Property

Grade Tensile Strength ksi (min) Yield Strength 0.2% ksi (min) Elongation % Hardness (Brinell) MAX
304 75 30 40 201
304L 70 25 40 201


We offer a variety of value-added secondary services for stainless round/square/rectangle tubing that meets your special requirements, We can provide high-grade appearance, precision laser cutting, saw cutting, bending, finishing 8K, mirror polishing, profiled pipe welding, laser and plasma cutting and other processing. Contact us for more information regarding specific requirements of ASTM A511, 544, A778 structural and mechanical stainless steel tubing, or call us now.

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