Properties of Grade 11 Titanium Sheet
Compared with steel, Grade 11 titanium sheet combines high strength with a low weight-to-strength ratio, resulting in superior performance. It is a titanium-palladium alloy: essentially Grade 1 titanium with 0.12 to 0.25 percent palladium, which gives it excellent ductility and cold formability while improving resistance to crevice corrosion and reducing environments. The grade designation UNS R56320 corresponds to ASTM B265 and ASME SB265. Grade 11 rolled sheets are widely used in the aerospace industry, and the material is now gradually penetrating markets including power plants and the watchmaking industry, where its scratch resistance, strength, impact toughness and weldability are valued.
Specification and Sizes
Grade 11 titanium plate is supplied to ASTM B265 and ASME SB265, with additional AMS, MSRR and BS specifications where required. The thickness range covers 0.1 mm to 100 mm, the width up to 2500 mm, and the standard sizes include 1000 x 2000 mm, 1220 x 2440 mm, 1500 x 3000 mm, 2000 x 4000 mm and imperial equivalents, with cut-to-size service available. The material is supplied in the annealed condition, in tempers from soft to spring hard, and in finishes including hot rolled, cold rolled, 2B, 2D, BA and polished. The distinction between sheet, plate and strip follows the standard definitions: sheet under 5 mm and at least 600 mm wide, plate at 5 mm and above, and strip under 5 mm and under 600 mm wide.
Product Forms
Grade 11 titanium is available as plates, sheets, coils, foils, rolls, shim sheet, strips, flats, clad plate, circles and blanks, in hot rolled, cold rolled, annealed, descaled, sheared and tread plate forms. Titanium clad plate is a composite plate made by bonding Grade 11 titanium to a steel backing, used where the corrosion resistance of titanium is needed on one side with the structural economy of steel behind it. Profiling services include plasma cutting, laser cutting and oxy-propane flame cutting to produce finished shapes.
Quality Documentation
Each supply should carry the raw material certificate in accordance with EN 10204 3.1B, and where required, a 100 percent radiography test report and third-party inspection report. The material is verified for special strength, high melting point, excellent corrosion resistance and good thermal resistance, and the supplier should maintain strict control from raw material to finished Grade 11 plate. For critical applications, the buyer should specify the required documentation when ordering.
How Plate Pricing Is Determined
The price of Grade 11 titanium plate is determined by several factors that buyers should understand before comparing quotations. The base is the cost of titanium sponge and the palladium addition, which is a significant premium over unalloyed grades. The size and thickness matter: non-standard thicknesses require special rolling, and larger plates increase the yield and handling cost. The surface finish and temper add processing cost, with polished and special-temper material costing more than mill finish. The origin and the batch size influence the price through logistics and quantity effects, and regional market conditions add further variation. For a comparable quotation, specify the grade, thickness, size, finish and quantity precisely.
Frequently Asked Questions
What is Grade 11 titanium? Titanium-palladium alloy, essentially Grade 1 with 0.12 to 0.25 percent palladium for enhanced corrosion resistance.
What is the UNS number of Grade 11 titanium? UNS R56320, supplied to ASTM B265 and ASME SB265.
What thickness range is available? From 0.1 mm to 100 mm, with widths up to 2500 mm and cut-to-size service.
What is titanium clad plate? composite plate bonding Grade 11 titanium to steel, combining corrosion resistance with structural economy.
Why does the palladium grade cost more? The palladium addition is a significant raw material premium over unalloyed titanium grades.
