Contact News Careers Investors Surcharges HOME COMPANY PRODUCTS GRADES SERVICES MARKETS APPROVALS CERTIFICATIONS GRADES Universal Stainless produces semi-finished and finished specialty steel long products and plate, including nickel alloy, stainless steel, tool steel and aircraft quality low alloy steels, in a wide variety of grades and product forms. You can find more detail about the specific grades we produce below. Grade Description Product Forms Melt Types 13-8 Stainless Steel A precipitation hardened martensitic stainless steel alloy that offers good corrosion resistance and excellent strength. Ingot RCS Billet Round Bar Flat Bar VIM+VAR 15-5 Stainless Steel A precipitation hardened martensitic stainless steel alloy that is melted in AOD+VAR, AOD+ESR, or VIM+VAR melt type. Round Bar Plate RCS Billet Flat Bar Ingot AOD+ESR AOD+VAR VIM+VAR 17-4 Stainless Steel A precipitation hardened martensitic stainless steel alloy that offers good corrosion resistance and excellent strength. PH17-4 is one of the most common PH stainless steels and is used in a wide variety of markets. RCS Billet Round Bar Flat Bar Ingots AOD AOD+ESR AOD+VAR 17-7 Stainless Steel A precipitation hardened stainless steel alloy that offers high strength, good corrosion resistance, and excellent fatigue strength and excellent strength. RCS Billet Round Bar Flat Bar Ingots AOD 300M Low Alloy Steel 300M is a modified 4340 high strength low alloy steel that is melted as AOD + VAR with higher strength and toughness than 4340. Round Bar RCS Billet Flat Bar Ingots AOD+VAR 303SE Stainless Steel An austenitic stainless steel melted as AOD melt type with a selenium addition for excellent machinability. Round Bar AOD 304L Stainless Steel A fully austenitic stainless steel melted as AOD, AOD + VAR, or VIM + VAR melt type. Ingot RCS Billet Round Bar Flat Bar AOD AOD+VAR VIM+VAR 310S Stainless Steel A fully austenitic stainless steel melted as AOD melt type that has excellent resistance to oxidation at high temperatures Ingot RCS Billet Round Bar Flat Bar AOD 316L Stainless Steel A fully austenitic stainless steel melted as AOD, AOD + VAR, or VIM + VAR melt type with added Mo for pitting resistance Ingot RCS Billet Round Bar Flat Bar AOD AOD+VAR VIM+VAR 321 Stainless Steel A fully austenitic stainless steel melted as AOD melt type and stabilized by titanium to prevent intergranular corrosion Ingot RCS Billet Round Bar Flat Bar AOD 330 Stainless Steel A fully austenitic nickel-iron-chromium alloy melted as AOD melt type and has very high resistance to oxidation and carburization at high temperatures Ingot RCS Billet Round Bar AOD 347 Stainless Steel A fully austenitic stainless steel melted as AOD melt type and stabilized by niobium to prevent intergranular corrosion Ingot RCS Billet Round Bar Flat Bar AOD 410 Stainless Steel A martensitic stainless steel alloy that is melted as AOD, AOD + VAR, or AOD + ESR melt type and used where good corrosion resistance, strength, and ductility are required. RCS Billet Round Bar Plate Flat Bar Ingot AOD AOD+ESR AOD+VAR 410CB Stainless Steel A martensitic stainless steel alloy that is melted as AOD + ESR melt type and has increased properties from 410 by an addition of columbium. RCS Billet Round Bar Flat Bar Ingot AOD+ESR 416 Stainless Steel A martensitic stainless steel that is AOD melted and has a sulfur addition to improve machinability as compared to 410 RCS Billet Round Bar Flat Bar Ingot AOD 420 Stainless Steel A martensitic high carbon stainless steel that is AOD or AOD + ESR melted and possesses high hardness in the heat treated condition. Plate RCS Billet Round Bar Flat Bar Ingot AOD AOD+ESR 420F Stainless Steel A free machining version of 420 martensitic high carbon stainless steel that is AOD melted. RCS Billet Round Bar Flat Bar Ingot AOD 422 Stainless Steel A hardenable martensitic stainless steel melted as AOD + ESR and has better strength at higher temperatures than a traditional 410 stainless RCS Billet Round Bar Flat Bar Ingot AOD+ESR 430 Stainless Steel A fully ferritic, non-hardenable, straight chromium alloy melted as AOD with good corrosion resistance and formability Plate RCS Billet Round Bar Flat Bar Ingot AOD 430F Stainless Steel A fully ferritic, non-hardenable, straight chromium alloy melted as AOD free machining version of 430 stainless RCS Billet Round Bar Flat Bar Ingot AOD 431 Stainless Steel A martensitic stainless steel that is AOD melted with excellent corrosion resistance and heat treatable to high strengths. RCS Billet Round Bar Flat Bar Ingot AOD 4330M Low Alloy Steel A low alloy high strength steel melted as AOD + VAR with added vanadium for excellent impact properties Round Bar RCS Billet Flat Bar Ingots AOD+VAR 4340 Low Alloy Steel A low alloy steel with ultra high strength melted as AOD + VAR or VIM + VAR product with excellent transverse properties Round Bar RCS Billet Flat Bar Ingots AOD+VAR VIM+VAR 4343 Low Alloy Steel A low alloy steel with ultra high strength melted as VIM + VAR product with excellent transverse properties and slightly higher carbon than 4340 Round Bar VIM+VAR 440A Stainless Steel A high carbon martensitic stainless steel that is AOD melted and can be heat treated to extremely high hardnesses Round Bar Flat Bar Ingot AOD 440C Stainless Steel A high carbon martensitic stainless steel that is AOD or AOD + ESR melted and can be heat treated to the highest hardness of any martensitic stainless alloy Plate Billet Round Bar Flat Bar Ingot AOD AOD+ESR AOD+VAR 440FSE Stainless Steel A free machining high carbon martensitic stainless steel that is AOD melted and heat treatable to elevated hardnesses Round Bar AOD 446 Stainless Steel A fully ferritic, non-hardenable, alloy melted as AOD with good resistance to oxidation and corrosion at high temperatures Round Bar Flat Bar Ingot AOD 4620 Low Alloy Steel A nickel, molybdenum, manganese low alloy steel that is melted as AOD + VAR melt type Round Bar RCS Billet Ingots AOD+VAR 52100 Low Alloy Steel A high carbon low alloy steel with ultra high strength melted as AOD + VAR or VIM + VAR product with excellent wear resistance Round Bar Ingots AOD+VAR VIM+VAR 6150 Low Alloy Steel Carbon chromium low alloy steel melted as AOD + VAR with highly abrasive resistance properties Round Bar Ingots AOD+VAR 9310 Low Alloy Steel A nickel-chrome-molybdenum low alloy steel melted as AOD + VAR or VIM + VAR with good strength and toughness properties Round Bar RCS Billet Flat Bar Ingots AOD+VAR VIM+VAR A2 Tool Steel An AOD melted air-hardened tool steel with good toughness and excellent dimensional control after heat treatment. Plate AOD A286 Stainless Steel An austenitic age-hardenable iron based superalloy melted as AOD+ESR. RCS Billet Round Bar Flat Bar Ingot AOD+ESR A6 Tool Steel An AOD air hardened tool steel that has the ability of a low temperature heat treatment. Plate AOD A675 Stainless Steel A675 is a stainless steel melted as VIM + VAR melt type and is often used in bearings and gearings. Round Bar VIM+VAR Alloy 450 Stainless Steel A precipitation hardened martensitic stainless steel alloy with improved transverse propeties that is melted in AOD+ESR melt type. Round Bar RCS Billet Flat Bar AOD+ESR Alloy 455 Stainless Steel A precipitation hardened martensitic stainless steel alloy with improved transverse properties that is melted in VIM + VAR melt type. Round Bar VIM+VAR Chipper Knife Tool Steel An AOD melted air hardened tool steel with above average wear resistance and toughness. Plate AOD CMV Steel CMV is a Chromium-Molybdenum-Vanadium steel melted as AOD + VAR melt type Round Bar AOD+VAR CrV Low Alloy Steel A low alloy steel melted as VIM + VAR melt type and comprised of primarily Chromium and Vanadium. Round Bar VIM+VAR D2 Tool Steel An AOD melted cold work, high carbon, high chromium tool steel with excellent hardenability. Plate AOD D6AC Low Alloy Steel A medium carbon low alloy steel melted as AOD + VAR with ultra high strength properties Round Bar RCS Billet Ingots AOD+VAR FV535 Stainless Steel A hardenable martensitic stainless steel melted as AOD + ESR and has better strength at higher temperatures than a traditional 410 stainless Round Bar AOD+ESR Greek Ascoloy Stainless Steel A hardenable martensitic stainless steel melted as AOD + ESR and has better strength at higher temperatures than a traditional 410 stainless RCS Billet Round Bar Flat Bar Ingot AOD+ESR H11 Tool Steel An AOD + VAR melted hot work tool steel with low carbon and good toughness. Round Bar RCS Billet Flat Bar AOD+VAR H13 Tool Steel An AOD or AOD ESR melted hot work, chromium tool steel that has good resistance to softening at higher temperatures. Plate Ingot AOD H46 (403CB+) Stainless Steel A hardenable martensitic stainless steel melted as AOD + ESR and has better strength at higher temperatures than a traditional 410 stainless RCS Billet Round Bar Flat Bar AOD+ESR HP9430 Low Alloy Steel A low alloy steel melted as AOD + VAR with nickel and cobalt additions to increase toughness Round Bar RCS Billet Ingots AOD+VAR Hytuf Low Alloy Steel A high strength low alloy melted as AOD + VAR with good ductility and fracture toughness Round Bar RCS Billet Ingots AOD+VAR Jethete Stainless Steel A hardenable martensitic stainless steel melted as AOD + ESR or AOD + VAR and has better strength at higher temperatures than a traditional 410 stainless RCS Billet Round Bar Ingot AOD+ESR AOD+VAR L6 Tool Steel An AOD melted high oil hardened tool steel with good toughness. Plate AOD M2 Tool Steel An AOD melted high speed tool steel with increased properties due to molybdenum additions. Plate AOD M50 Bearing Steel A bearing steel that is AOD + ESR, AOD + VAR, or VIM + VAR melted and has extremely high wear resistance. Billet Round Bar Flat Bar AOD+ESR AOD+VAR VIM+VAR M50NIL Bearing Steel A bearing steel that is VIM + VAR melted and has extremely high wear resistance and good toughness Round Bar VIM+VAR Maraging 250 Steel An age hardenable iron-nickel steel alloy melted as VIM + VAR with ultra high strength and toughness. Round Bar VIM+VAR Maraging 300 Steel An age hardenable iron-nickel steel alloy melted as VIM + VAR with ultra high strength and toughness. Round Bar VIM+VAR N135M Low Alloy Steel A low alloy steel melted as AOD + VAR and capable of nitriding to a high case hardness Round Bar Ingots AOD+VAR N32 Stainless Steel An austenitic stainless steel melted as AOD melt type with special alloying to have roughly twice the strength of 304 stainless. Round Bar RCS Billet Ingot AOD N33 Stainless Steel N33 is an austenitic nitrogen strengthened stainless steel melted as AOD + ESR melt type Round Bar AOD+ESR N40 Stainless Steel A high manganese, high nitrogen, austenitic stainless steel melted as AOD or AOD + ESR melt type. Ingot RCS Billet Round Bar Flat Bar AOD AOD+ESR N50 Stainless Steel A high nitrogen austenitic stainless steel melted as AOD melt type with higher strength and corrosion levels than 316L Ingot RCS Billet Round Bar Flat Bar AOD N60 Stainless Steel A high nitrogen austenitic stainless steel melted as AOD melt type with better pitting resistance than 316L Ingot RCS Billet Round Bar Flat Bar AOD Nitriding N Low Alloy Steel a low alloy age hardenable nitriding steel that is melted as AOD + VAR melt type. Round Bar AOD+VAR O1 Tool Steel An AOD melted oil hardened tool steel that can reach up to 65 rockwell C in hardness Plate AOD O6 Tool Steel An AOD melted oil hardened tool steel used for applications requiring cold work Plate AOD S7 Tool Steel An AOD melted shock resisting tool steel with excellent hardenability and impact properties. Plate AOD X53 Low Alloy Steel A low alloy carburizing steel melted as VIM + VAR with good temper resistance and impact strength Round Bar VIM+VAR GRADES FILTER GRADE FAMILIES: Austenitic Ferritic Low Alloy Steels Martensitic Precipitation Hardenable Specialty Steels Stainless Steel Tool Steels MELT TYPES: AOD AOD+ESR AOD+VAR VIM+VAR MARKETS: Aerospace Heavy Equipment Oil & Gas Other Industrial Markets Power Generation APPLY » DISCLAIMER: The information provided on this Web site, technical or otherwise, is merely for informational purposes, and is not intended to serve as a guide, manual, instructions, or any kind reference for proper safety procedures or material purchasing. Universal Stainless makes no warranty, express or implied, based on the statements on this Web site and, as such, will not be liable for any damages, either direct or indirect, including but not limited to consequential damages, such as damages for loss of profits, that may arise based on reliance on the information provided on this Web site. Some information has been referenced from reliable industry sources. BRIDGEVILLE, PA 600 Mayer Street Bridgeville, PA 15017 412-257-7600 412-257-7640 fax 412-220-7678 - HR - Now Hiring Call Today NORTH JACKSON, OH 2058 S Bailey Road North Jackson, OH 44451 412-257-7600 sales 412-257-7640 sales fax 330-538-9621 330-538-9098 fax TITUSVILLE, PA 121 Caldwell Street Titusville, PA 16354 814-827-9723 814-827-2766 fax DUNKIRK, NY 830 Brigham Road Dunkirk, NY 14048 716-366-1000 716-366-0478 fax 716-366-1000 ext 44203 - HR - Now Hiring Call Today © COPYRIGHT 2021. UNIVERSAL STAINLESS. ALL RIGHTS RESERVED.