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Rod, bar made of titanium gost OT-4, OT4-0, OT4-1

General characteristics

A wire, a bar, a rod are much-required types of titanium semi-fabricates. Alloys of OT grades relate to pseudo α-alloys of small heat-resistance but a high plasticity. Their heat-resisting properties strongly depend on cooling speed. An intermediate speed cooling between a cooling in water or in furnace gives the products the lowest level of creep.

Alloy t° at the end of recrystallizing t° at the beginning of recrystallizing Bars, forgings. t° of annealing
OT4−0 800° 680° 690 — 740°C
Titanium gost OT-4 860° 760° 740 — 760°C
Titanium gost OT4−1 840° 720° 740 — 790°C

In order to decrease a retained stress, there is used a partial annealing at a temperature that is lower than a temperature of recrystallizing. An endurance of annealing constitutes 0,5 — 2 h. with a further cooling in the air.

Technical characteristics

Semi-fabricate Thickness, mm Plasticity δ% Strength (MPa) KCU J/cm³  
Titanium gost OT4−0 bar 10 — 60 more than 45% 490 — 637 more than 70  
Titanium gost OT4−0 bar 101 — 150 more than 17% 441 — 637 more than 50  
Titanium gost OT4−0 bar 140 — 250 more than 17% 441 — 637 more than 60  
Titanium gost OT4−0 bar 65 — 100 more than 45%   more than 70  
Titanium gost OT4−0 bar 140 — 250 more than 17%   more than 70  
Titanium gost OT4−0 bar 10 — 60 more than 15% 588 — 735 more than 45  
Titanium gost OT4−0 bar 65 — 100 more than 15% 588 — 735 more than 45  
Titanium gost OT4−0 bar 100 — 150 more than 12% 539 — 735 more than 40  
Titanium gost OT4−1 bar 140 — 150 more than 12% 539 — 735 more than 40  
Titanium gost OT4−1 bar 151 — 250 more than 12% 539 — 735 more than 45  
Titanium gost OT4−1 bar Ø10 mm 20 655 70  
Titanium gost OT4−1 wire Ø 1.0 — 1.4 more than 7.5% up to 785 ---  
Titanium gost OT4−1 wire Ø 1.5 — 3.0 more than 9%   ---  
Titanium gost OT4−1 wire Ø 3.5 — 7.0 more than 12%   ---  
Titanium gost OT4 bar 10 — 60 more than 11% 686 — 883 more than 30  
Titanium gost OT4 bar 65 — 100 more than 10%   more than 30  
Titanium gost OT4 bar 101 — 150 more than 8.5% 637 — 883 more than 35  
Titanium gost OT4 bar 140 — 250 more than 8.5% 637 — 883 more than 35  
Titanium gost OT4 bar 140 — 250 more than 10% 657 — 883 more than 40  
Titanium gost OT4 bar Ø18 mm 26 835 54  
Titanium gost OT4 calibrated bars Annealing 804 13.5    
Titanium gost OT4 calibrated bars Annealing 1100°С+750°С — 1 h in the air 745 15 13.5
Titanium gost OT4 calibrated bars 1100°С+1020°С, water +900°С 1 h. with a furnace up to 650°С 1100°С+750°С — 1 h in the air 745 15 16
Titanium gost OT4 calibrated bars Annealing 800 °C 1 h. 1100°С+1020°С, water +900°С 1 h. with a furnace up to 650°С 806 30 16

Deformable semi-products have more or less pronounced anisotropy of properties. Coefficient of alloy hardening takes into account an effect of alloying. This effect strengthens a relationship between units. This coefficient is increased from 1.18 in pure titanium up to 1.32 in hard-alloyed grades with an increased number of components. Coefficient equals to 1,23 for titanium alloy gost OT4−0. Semi-fabricates of grade OT are easy to weld with any types of welding.

Demerits

In comparison with other grades of titanium, it possesses relatively low heat resistance and strength, propensity to hydrogen frailty. Manufacture technology refers to expensive and time consuming due to a relatively high resistance to cold deformation. Hot titanium simply interacts with atmospheric gasses. However, it poorly conducts heat by creating large temperature gradients at treatment. Therefore, a cost of finished products is much higher than a price of feedstock.

Application

Structural efficiency, erosion, corrosion resistance, ballistic resistance and other advantages of OT grade semi-products make their use feasible in engineering. Details that can be manufactured: parts of connecting rods, valves, crank and cam shafts, transmission components, bolts, springs, crutch parts. For example, manufacture of titanium connecting rods enables to reduce a load on connecting rod bearings for 30%. At the same time, it greatly increases their durability and reliability.

Buy titanium gost OT-4 rod, bar at a bargain price

You have to take into account a range of factors when choosing titanium mill-products. A wide selection of titanium mill-products for order in advance is presented in «Auremo» titanium gost OT-4 rod, bar supplier. Today you can buy products on the most favourable terms. Titanium gost OT-4 rod, bar price is conditioned by technological features of manufacture without including additional expenses. Our specialists are always ready to help with selecting required products, which determine capability and reliability of future equipment. High quality products, which comply with GOST and International Standards, and timely delivery define a face of our company. You can find all information about goods on company’s web-site. We offer beneficial titanium gost OT-4 rod, bar price for regular customers from titanium gost OT-4 rod, bar supplier. Buy titanium gost OT-4 rod, bar in a moment!