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Alloys

Stainless Steel Chemical Composition

United Industries offers a wide variety of stainless and corrosion resistant alloys for superior strength, bend ability, temperature requirements and longevity.

Austentic

ELEMENTS T201 T301 T304L T309S T316L T321
(C) Carbon, max 0.15 0.15 0.035 0.08 0.035 0.08
(Mn)Manganese, max 5.50-7.5 2.00 2.00 2.00 2.00 2.00
(P) Phosphorus, max 0.06 0.045 0.045 0.045 0.045 0.045
(S)Sulphur, max 0.030 0.030 0.030 0.030 0.030 0.030
(Si)Silicon, max 1.00 1.00 1.00 0.75 1.00 1.00
(Cr)Chromium 16.0-18.0 16.0-18.0 18.0-20.0 22.0-24.0 16.0-18.0 17.0-19.0
(Ni) Nickle 3.5-5.5 6.0-8.0 8.0-12.0 12.0-15.0 10.0-15.0 9.0-12.0

Ferritic

ELEMENTS T409 T439 T44HP T444 18CRCB
(C) Carbon, max 0.03 0.03 0.009 0.025 0.03
(Mn)Manganese, max 1.00 1.00 0.35 1.00 1.00
(P) Phosphorus, max 0.04 0.04 0.023 0.04 0.04
(S)Sulphur, max 0.02 0.03 0.002 0.03 0.03
(Si)Silicon, max 1.00 1.00 0.34 1.00 1.00
(Cr)Chromium 10.50-11.70 17.0-19.0 18.00 17.50-19.50 17.50-19.50
(Ni) Nickle, max 0.05 0.05 0.30 1.00 1.00

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