There are basically two types of Quenched and Tempered steels stocked: Abrasive Resistant and Constructional Alloy.
This metal is used where high strength, good weldability and improved notch toughness are required. Typical applications include heavy construction equipment and bridges.
Q and T ABRASIVE RESISTANT STEEL
These steels are used where abrasive resistance and good impact values are important. Typical applications include liner plates in hoppers, chutes and trucks for the mining, transportation and pulp and paper industries.
AVAILABILITY
Q & T steel plate is available in thickness from 1⁄4" up to 5⁄2".
NOTCH TOUGHNESS
Q & T steel plate is normally produced and certified to impact values of 20 ft. lbs. at -50°F. Higher values are subject to inquiry.
Q & T steel plate is readily weldable by all major plate welding processes, provided that proper welding procedures are used. Special attention should be given to electrode selection. Preheat may be required for heavy thickness plates.
FORMABILITY
Because of the generally low carbon and alloy levels,
Q & T steel can be cold-formed satisfactorily. For bend lines perpendicular to rolling direction, a minimum inside radius of 2t should be used when bending plate up to 1" in thickness and a 3t radius should be
used for plate over 1" to 2" thick. Suitable precautions should be taken to control fabrication procedures, since Q & T steel has two to three times the yield strength of common structural grades. Hot forming of Q & T steel may impair the physical properties of the as-received plate.
CUTTING
This steel can be gas cut using good shop and field practices. Shearing is possible if the capacities of the shear and knives are adequate.
CORROSION RESISTANCE
These steels have the same atmospheric corrosion resistance as plain carbon steel. This may be enhanced somewhat by specifying a minimum copper addition.
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Tags: Q&T STEEL, Q&T STEEL IS A SPECIAL STEEL MATERIAL, IT IS A KIND OF HEAT-TREATMENT.LIKE A537CL2/CL3, A387GR11/GR12, THEY ARE Q&T STEEL
