Grade library

Stainless Steel Grades

Compare 67 stainless steel grade references by metallurgical family. Open any grade page for chemistry, properties, fabrication guidance and supply considerations.

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Use the search field for a grade designation, or narrow the library by metallurgical family.

Showing all 67 published grade references.

Image positions

Visual context for grade selection

Reserve these three positions for alloy families, product surfaces and traceability evidence.

Austenitic stainless steel materials — Austenitic materials Reserved for austenitic product or surface photography

Ferritic and martensitic stainless steel materials — Ferritic & martensitic materials Reserved for comparative material photography

Stainless steel material traceability and inspection records — Traceability evidence Reserved for markings, certificates or inspection records

Chromium-nickel grades · 29 grades

Austenitic stainless steel

General-purpose, low-carbon, stabilized and elevated-temperature austenitic grades.

Austenitic201Open grade reference →Austenitic202Open grade reference →Austenitic301Open grade reference →Austenitic301LOpen grade reference →Austenitic302Open grade reference →Austenitic303Open grade reference →Austenitic304Open grade reference →Austenitic304HOpen grade reference →Austenitic304LOpen grade reference →Austenitic304NOpen grade reference →Austenitic305Open grade reference →Austenitic308Open grade reference →Austenitic309Open grade reference →Austenitic309SOpen grade reference →Austenitic310Open grade reference →Austenitic310SOpen grade reference →Austenitic314Open grade reference →Austenitic316Open grade reference →Austenitic316HOpen grade reference →Austenitic316LOpen grade reference →Austenitic316LNOpen grade reference →Austenitic316TiOpen grade reference →Austenitic317Open grade reference →Austenitic317LOpen grade reference →Austenitic321Open grade reference →Austenitic321HOpen grade reference →Austenitic347Open grade reference →Austenitic347HOpen grade reference →Austenitic348Open grade reference →

No matching grades in this family.

Chromium grades · 10 grades

Ferritic stainless steel

Magnetic ferritic grades for forming, oxidation resistance, automotive and appliance applications.

Ferritic409Open grade reference →Ferritic409LOpen grade reference →Ferritic430Open grade reference →Ferritic430FOpen grade reference →Ferritic434Open grade reference →Ferritic436Open grade reference →Ferritic439Open grade reference →Ferritic441Open grade reference →Ferritic444Open grade reference →Ferritic446Open grade reference →

No matching grades in this family.

Hardenable grades · 11 grades

Martensitic stainless steel

Heat-treatable grades selected for strength, hardness, wear resistance and cutting performance.

Martensitic403Open grade reference →Martensitic410Open grade reference →Martensitic410SOpen grade reference →Martensitic414Open grade reference →Martensitic416Open grade reference →Martensitic420Open grade reference →Martensitic422Open grade reference →Martensitic431Open grade reference →Martensitic440AOpen grade reference →Martensitic440BOpen grade reference →Martensitic440COpen grade reference →

No matching grades in this family.

Balanced two-phase grades · 5 grades

Duplex stainless steel

Lean, standard and super duplex grades for higher strength and chloride resistance.

Lean Duplex2101Open grade reference →Duplex2205Open grade reference →Lean Duplex2304Open grade reference →Super Duplex2507Open grade reference →Super DuplexS32760Open grade reference →

No matching grades in this family.

High-strength grades · 6 grades

Precipitation-hardening stainless steel

Age-hardenable grades used where high strength, dimensional control and corrosion resistance must be balanced.

Precipitation Hardening13-8 MoOpen grade reference →Precipitation Hardening15-5 PHOpen grade reference →Precipitation Hardening17-4 PHOpen grade reference →Precipitation Hardening17-7 PHOpen grade reference →Precipitation HardeningCustom 455Open grade reference →Precipitation HardeningCustom 465Open grade reference →

No matching grades in this family.

Higher-alloy selections · 6 grades

Specialty austenitic grades

Super austenitic, nitrogen-strengthened, wear-resistant and heat-resistant grades for demanding service.

Heat Resistant253 MAOpen grade reference →Super Austenitic254 SMOOpen grade reference →Super Austenitic904LOpen grade reference →Super AusteniticAL-6XNOpen grade reference →High Strength AusteniticNitronic 50Open grade reference →Wear Resistant AusteniticNitronic 60Open grade reference →

No matching grades in this family.