CHROME-NICKEL, NON-HARDENING, AUSTENTIC (NON-MAGNETIC)
203 EZ (S20300) –Superior machining austenitic stainless designed specifically for high speedautomatic machine operations. Faster speeds, better finish, longer too lifewhen compared to 303. Same corrosion resistance.
303 (S30300) –Free machining variation of T-302/304 for use in automatic machiningoperations. Corrosion resistant to atmospheric exposures, sterilizingsolutions, most organic and many inorganic chemicals; most dyes, nitric acidand foods.
304 (S30400) –The most widely used of the stainless and heat resisting steels. Offers goodcorrosion resistance to many chemical corrodents as well as industrialatmospheres. Has very good formability and can be readily welded by all commonmethods. 304 Prodec offers improved machinability.
304 L (S30403) –Extra low carbon variation of T-304 avoids harmful carbide precipitation due towelding. Same corrosion resistance as 3-304. Slightly lower mechanicalproperties than T-304. 304 L Prodec offers improved machinability.
309/309S (S31000,S31008) – Used in high temperature applications. High scale resistance.Corrosion resistance superior to 304. Excellent in resisting sulfite liquors,nitric acid, nitric-sulfuric mixtures, acetic, citric and lactic acids. 309S(.08 max carbon) offers improved corrosion resistance in welded parts.
310/310S (S31000,S31008) – Higher alloy content improves the characteristics of 309. Corrosionresistance better than 304.Excellent oxidation resistance. 310S (.08 max.carbon) offers improved corrosion resistance in welded components.
316 (S31600) –Extra low carbon variation of T-316 to avoid carbide precipitation due towelding. Same excellent corrosion resistance of T-316. 316 L Prodec offersimproved machinability.
317 L (S31703) –Moly bearing austenitic steel with alloy content somewhat higher than 316. Thischemistry gives 317 L superior corrosion resistance in difficult environments,as well as higher creep, stress-to-rupture and tensile strengths at elevatedtemperatures. Applications include FGD scrubbers, chemical and petrochemicalprocessing equipment and pulp and paper equipment.
321 (S32100) –Stabilized with titanium for weldments subject to severe corrosion. No carbideprecipitation. Excellent resistance to a variety of corrosive media. Immune tomost organic chemicals, dyestuffs and many inorganic chemicals.
Nitronic 30 – Anitrogen-strengthened stainless developed for applications requiring a goodlevel of aqueous corrosion resistance combined with good resistance to abrasiveand metal-to-metal wear. Applications include conveyors, hoppers, chutes,mixing equipment, screens, wear plates – anywhere there is wet slidingabrasion.
Nitronic 50 (S20910)(Formerly 22-13-5) –A nitrogen strengthened austenitic stainless that providesa combination of corrosion resistance and strength. Corrosion resistancegreater than that of T-316 and T-316L plus approximately twice the yieldstrength. Very good mechanical properties at both elevated and subzerotemperatures.
Nitronic 60 (S21800)– Excellent galling resistance, corrosion resistance comparable to T-304 plusapproximately twice the yield-strength. Metal to metal abrasive wear resistanceis also good.
CHROME, HARDENABLE MARTENSITIC (MAGNETIC)
410 (S41000) –Heat-treatable stainless used widely where corrosion is not severe – air, freshwater, some chemicals and food acids. Typical uses include valve & pumpparts, fasteners, cutlery, turbine parts, bushings.
410 DOUBLE TEMPERED (S41000)– Quenched and double tempered variation of T-410 conforming to NACE MR-01-75(rev. 1980) API 6A Type III. For partsused in hydrogen sulfide (H2S) service.
416 (S41600) –Free-machining variation of T- with useful corrosion resistance to natural foodacids, basic salts, water and most atmospheres.
422 (S42200) – Amartensitic stainless steel designed for service temperatures up to 1200degrees F with good combination of high strength and toughness. It is used insteam turbines as blading and bolting material.
440 C (S44004) –A high carbon (.95/1.20%C) chromium steel that can attain the highest hardness(Rockwell C60) of any standard stainless grade. In the hardened and stressrelieved condition, 440 C has maximum hardness together with high strength andcorrosion resistance. Also has good abrasion resistance. 440 A is a lowercarbon variety (.60/.75%C) which results in lower hardness but greatertoughness in the hardened condition.
CHROME-NON HARDENABLE-FERRITIC (MAGNETIC)
409 (S44004) –Low cost stainless – used extensively in automotive exhaust systems. Because ofits combination of economy and good resistancde3 to oxidation and corrosion, itcreates opportunities to economically improve the performance of a wide rangeof parts where surface appearance is not important.
430 (S43000) – Isthe most popular of the non-hardenable chromium stainless steels. It combinesgood corrosion and heat resistance with good mechanical properties. Oxidationresistance to 1500 degrees F widely used in both industrial and consumerproducts.
PRECIPITATION HARDENING, MARTENSITIC (MAGNETIC)
17-4 (S17400) – Aprecipitation hardening grade combining high strength and hardness withcorrosion resistance similar to T-304 in most media. Simple low temperatureheat treatment at 900/1150 degrees F eliminates scaling and prevents excessivewarpage.
17-4 DOUBLE AGEDH1150 (S17400) – Solution annealed then double age hardened to procedure #1in NACE MR 01-75. Used in many pressure control applications in the energymarket.
15-5 (S15500) – Avacuum arc remelted grade which offers high strength and hardness. Excellentcorrosion resistance plus excellent transverse toughness.