409/409L Stainless Steel Hollow Section

Mill plant: QINGSHAN steel

Standards: ASTM A554, A778

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 the stainless steel hollow section in the shape of round, rectangle or square for mechanical and structural steel tubing in various sizes and specifications. The grade 409/409L stainless steel hollow section supplied by WIHO metals in a wide array of diameters and thicknesses and have the ability to customize your order by our stainless tube processing services.

The grade 409/409L Stainless steel Round/Square/Rectangle Tubing are specified in ASTM A554/778 for structural or mechanical 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.


ASTM A554 409/409L Rectangular Hollow Section Chemical Composition

C Ni Si S Mn P Cr Ti
0.03 ≤0.5 ≤1.00 ≤0.02 ≤1.00 ≤0.04 10.5-11.7 6*(%C+%N)-0.5


ASTM A554 409/409L Structural Rectangular Hollow Section Mechanical Properties

Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness

Brinell (HB) max

379 207 20 131


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 A544, A778 structural and mechanical stainless steel tubing, or call us now.

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