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409 Stainless Steel

409 Stainless Steel

Grade: 400 Series Stainless Steel
Type: Stainless Steel Plate, Stainless Steel Pipe/Tube, Stainless Steel Coil
Standard: ASTM A240
Specification: Thickness:0.3mm-100mm||||||Width:200-3000mm
Application:409 Stainless Steels are especially useful for applications where oxidation or corrosion protection beyond the capacity of carbon steel and some coated steels is needed.

409 Stainless steel Introduction

409 Stainless Steel , 409steel plate, SS 409, stainless 409

SS 409 contain a certain number of surface inclusions which are the normal result of titanium stabilization additions to improve the steel. Occasionally, rusting may occur
at these inclusion sites and lead to problems with cosmetic appearance. As a result, these steels are not suggested for applications where surface appearance is a factor. In cases where surface appearance is important, 400 stainless steels should be considered.
409 Stainless steel Usage
Current applications include automotive and truck exhaust systems, including tubular manifolds; agricultural spreaders, gas turbine exhaust silencers, and heat exchangers.409 Stainless Steels are also useful for “difficult-to-form” hardware such as fuel filters.
SS 409 Surface Finish:
2B,8K,hairline,NO.4,NO.1,mirror finish 
409 Stainless Steel , 409steel plate, SS 409, stainless 409
409 Stainless steel Typical Chemical Requirements (%)
Type  C Mn P S Si Cr Ni Mo N
409 ≤ 0.030 ≤ 1.00  ≤ 0.040 ≤ 0.020  ≤ 1.00 10.5--11.7  0.50  -- 0.30
410 0.08--0.15 ≤ 1.00 ≤ 0.040 ≤ 0.030 ≤ 1.00 11.5--13.5 0.75 -- --

409 Stainless steel Mechanical Test Requirements

Type   Tensile Strength, min   Yield Strength, min    Elongation in 2 in. or 50mm, min, %   Hardness, max   Cold Bend
ksi MPa ksi Mpa HB HRB
409 55 380 25 170 20 179 88 180
410 65 450 30 205 20 217 96 180
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