Allegheny Ludlum - Leading producer of stainless steel and other specialty materials
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Automotive, Truck, and Railcar - Multi-Layer Steel (MLS) Gaskets

MLS gaskets are fabricated from Precision Rolled Strip® stainless steel in the temper-rolled condition. Austenitic stainless steels with high work hardening rates are employed because of their extremely high strength and corresponding fatigue and spring properties.
Product Line Description Alloys
Stainless Steel Type 301 is the most commonly specified stainless steel for MLS gaskets. It is available in five tempers (specified as annealed through full-hard) with corresponding strength levels ranging from 40-185 ksi. Type 201 can often be substituted for higher-nickel alloys in MLS applications. It behaves similarly to Type 301, and can be temper rolled to strengths of 200 ksi or more. Other grades, such as 304, 316, 321, 409, and 430 are used for special-purpose gaskets. AL 201HP™
301
304 / 304L
316 / 316L
321
409/AL 409 HP™
430



 

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