Stainless Steel 409Stainless Steel 409 SupplierStainless Shapes is an experienced 409 Stainless Steel supplier. 409 SS is a general purpose ferritic stainless steel. It is one of the most common stainless objects in Automobiles because of it’s low cost and high resistance to average strain and heat. There is also a higher grade version of stainless steel 409 known as SS 439.Characteristics of 409Chemical Composition – The chemical composition is a pretty standard buildout. It’s a predominate balance of FE and the rest is Fe, <0.08% C, 10.5-11.75% Cr, <0.5% Ni, <1.0% Mn, <1.0% Si, <0.045% P, <0.03% S, 6x%C-0.75% TiCorrosion Resistance – With a low count of Chromium and Nickel, this is not a great metal for corrosion resistance, though it is good for mild heat resistance.Machinability – For the most part, 409 has to be pre-heated before welding. But it only needs to reach in between 150 and 260 Celsius. Most of the rods need to have that preheating for molding, but too much will damage the metal completely.Common Applications – You will constantly see 409 acting as non-visual pieces of the automobile industry. These will be anything from brakes and rotors to pipes and engine parts. However, more often than not, SS 439 will be used for catalytic converter because it is a higher grade and is better at retaining pollutants.What is SS 439?Stainless Steel 439 is a modified version of 409. It has a higher steel grade which makes it better at heat transference and absorbing pollutants. This makes it ideal for more visually or more challenging pieces of the vehicle.Not Sure What you’re looking for?At Stainless Shapes, we believe in making ourselves available at all times so that you feel comfortable with your purchase. If you are unsure of what you are looking for, be sure to contact us or give us a call at (800) 748-9811!METAL WEIGHTID & WALLMETAL WEIGHT CALCULATORSelect Your Metal:15-5 PH Stainless Steel17-4 PH Stainless SteelStainless 300 SeriesStainless 400 SeriesNickel 200Nickel 201Nickel 400Nickel 600Nickel 625Nickel 718Nickel X750Nickel 800Nickel 800HNickel 825Nickel 904LTitaniumMonelNitronic Select a Shape:Round BarSquare BarFlat BarSheetPlateCircleRingHexagon BarRound TubingSquare TubingRectangular Tubing Number of Pieces:Enter size information:inft inft inft inft Calculated WeightsApprox. weight in lbs* *These weights should be used for estimation purposes only. Plate weight does not allow for kerf.Calculator to get ID from OD and Wall of stainless steel tubeOD:Wall:ID CalculatedCalculator to get Wall from OD and ID of stainless steel tubeOD:ID:Wall Calculated *These results should be used for estimation purposes only.Contact Us For More Information Please leave this field empty.