Sheet, wire OT-4

Round, bar
Sheet, wire

International Equivalent

Mark Analogue W. Nr. Aisi Uns En Order
OT4 Delivery from the stock, in stock
OT4-0 Delivery from the stock, in stock
OT4-1 Delivery from the stock, in stock

General characteristics

Titanium alloys of OT series (produced according to GOST 19 807-91) are alloyed with manganese and aluminum. They are characterized by high manufacturability, can be stamped, bent, drilled, welded by any methods. The following semi-finished products are produced: strips, plates, sheets, bands, circles, forging profiles, tubes. Tape is produced in accordance with GOST 90 027. OT grade parts are working at t° up to +350 °С.

Semifinished product Thickness (mm) Heat treatment Strength (MPa) Plasticity δ% KCU J/cm³
Sheet OT4-0 0,3 - 0,4 Delivery condition 490 - 637 Over 25% ---
Sheet OT4-0 0,5 - 1,8 Delivery condition 490 - 637 Over 30% ---
Sheet OT4-0 2,0 - 6,0 Delivery condition 490 - 637 Over 25% ---
Sheet OT4-0 6,5 - 10,0 Delivery condition 490 - 637 Over 20% ---
Sheet OT4-0 0,3 - 10,5 Annealing Over 470 20 - 30% ---
Sheet OT4-0 2 Annealing 539 36% ---
Sheet OT4-0 2 670° annealing 20 min 529 43% ---
Plate OT4-0 11 - 20 Annealing 490 - 635 Over 12% ---
Plate OT4-0 20 - 60 Annealed 490 - 635 More than 11% ---
Plate OT4-0 60 - 150 Annealing 490 - 635 Over 10%. ---
Sheet OT4-1 0,3 - 0,4 Delivery condition 588 - 735 Over 25% ---
Sheet OT4-1 0,5 - 1,8 Delivery condition 588 - 735 Over 30% ---
Sheet OT4-1 2,0 - 6,0 Delivery condition 588 - 735 Over 25% ---
Sheet OT4-1 6,5 - 10,0 Delivery condition 588 - 735 Over 20% ---
Sheet OT4-1 П Thermal rolling 763 12,1 ---
Sheet OT4-1 Д Heat rolling 721 14,7 ---
Sheet OT4-1 П Annealed750° 630 40 ---
Sheet OT4-1 Д Annealed750° 650 33 ---
Plate OT4-1 11 - 20 Annealing 590 - 735 Over 10%. ---
Plate OT4-1 20 - 60 Annealing 590 - 735 Over 9% ---
Plate OT4-1 60 - 150 Annealing 590 - 735 Over 8% ---
OT4 sheet 0,3 - 10,5 Annealing Over 685 10 - 20 ---
OT4 sheet 1 - 2 Annealing 685 - 784 18 - 26 ---
OT4 sheet 1 mm Annealed at 500° C for 30 min 696 24 ---
OT4 sheet 1 mm 550° annealing 30 min 706 24 ---
OT4 sheet 1 mm 650° annealing 30 min 696 25 ---
OT4 sheet 1 mm 750° annealing 30 min. 661 25 ---
OT4 P sheet 3 mm Annealed at 750° 20 min. 867 21,5 ---
Sheet OT4 D 3 mm Annealed at 750° 20 min. 872 20 ---
OT4 P sheet 3 mm 750° vacuum annealing 1 hour. 813 19,9 ---
Sheet OT4 D 3 mm 750° vacuum annealing 1 hour. 823 22,9 ---
Plate OT4 11 - 20 Annealing 685 - 885 Over 8% ---
Plate OT4 20 - 60 Annealing 685 - 885 Over 7% ---
Plate OT4 60 - 150 Annealing 685 - 885 Over 6% ---

E - longitudinal direction of rod cutting; P - transverse; T - height.

Deformable semi-finished products have more or less pronounced anisotropy of properties. Usually the tables indicate the properties of samples cut in the longitudinal direction.

Alloy t° of beginning of recrystallization T° of end recrystallization t° annealing. Sheets and articles thereof
OT4-0 680° 800° 590 - 640°
OT4-1 720° 840° 640 - 690°
OT-4 760° 860° 660 - 680°

Disadvantages

Titanium production refers to labor-intensive and expensive branch of metallurgy. OT grade alloys have: 1) susceptibility to hydrogen embrittlement; 2) relatively low strength and heat resistance.

Use of

In shipbuilding titanium sheet is used for the shell plating of ships and submarines, shipboard machinery, propellers, etc. Titanium is indispensable in aircraft construction. Titanium sheet and plate are used for parts of modern powerful engines. Without them today it is impossible to imagine the gas production industry, petrochemicals, and refineries, and oil drilling platforms. OT titanium is effective heat exchangers, food, chemical and medical equipment. Thanks to its biological tolerance, titanium is in demand for the production of medical instruments and prostheses. It serves for interior and exterior of modern buildings in high-tech style. Despite the price, its use is economically justified by the durability, strength and ease of products.

Buy at a bargain price

Evek GmbH stocks titanium rolled products at the best prices. We sell sheet, plate, strip, foil of OT grade titanium alloys in standard and non-standard sizes. Quality is guaranteed by strict observance of production technology. Products pass ultrasonic control for absence of defects. Experienced managers provide comprehensive advice on all issues. Delivery - in the shortest possible time. In case of bulk orders there is a system of discounts.