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Hi Steve: My knowledge on metallurgy and metals can't even compare with your's in different applications, would like to toss out a Quote from Ryerson's Stock list book, under the plate section, which may not even apply in a trailer app?. Need to practice typing anyway. *grin* "GUIDE TO SECTION
CONSTRUCTION ALLOYS [1] CONSTRUCTION ALLOYS are quenched and tempered high strength alloy steels produced to minimum mechanical properties with a yield strength nearly 3 times that of A36 structural steel. This material offers high strength plus good workability and weldability with minimum pre-heating. Plus exceptional toughness at low atmospheric temperatures {to -50 degrees F]. Used extensively for component parts and as liners for construction equipment, mining machinery, truck bodies, chutes, and wear plates. T-1 TYPE A {ASTM A514 GRADE B] -- Stocked in thicknesses through 1 1/4". Has a lower alloy content than the original T-1 but the same strength. Lowest priced of the T-1 allloys. Idenitification color: green-pink-orange. T-1 TYPE A 321 MIN. BIN--Same as Type A except with greater hardness for improved abrasion resistance. Identification color: green-pink-silver. T-1 TYPE B [ASTM A-514 GRADE H] -- Stocked 1 1/2" through 2" with an alloy content between Type A and the original T-1 while maintaining the same strength. Identification color: green-blue-orange. T-1 STRUCTURAL QUALITY [ASTM A-514 GRADE F] -- Stocked 2 1/4" through 2 1/2". This is the orignal T-1 grade. Identification color: green-yellow. T-1 TYPE C [ASTM A514 GRADE Q] -- Stocked in thicknesses over 2 1/2", Type C is richer in alloy content than the original T-1 with slightly lower strengthlevels. Identification color: green-brown. [1] NOTE...Postweld heat treatment of T-1 steel isn't recommended because cracking may develop in the heat affected zone." - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- This may be just an example of some of the wealth of info that may be found in the stock list books and filler metal guides, and most of the time there free for the asking.
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