40 titanium circles, rods, sheets

International Equivalent

Mark Analogue W. Nr. Aisi Uns En Order
40 1.0540 1040 C40 Delivery from the stock, in stock


Titanium alloy 40 is characterized by high specific strength, it is paramagnetic, wear-resistant. These advantages are especially valuable in mechanical engineering, aviation, where heat resistance, corrosion resistance combined with strength are important. It is also relevant in shipbuilding, rocket and railway transport. Some specific structural properties of alloy 40 are of great interest for the food and chemical industries.

Possible designations in the reference literature SP-40.

Alloy grade: Classification: Industrial Use:
40 Titanium wrought alloy Production of sections, ingots and semi-finished products; production of special equipment parts, instrumentation and aircraft parts.

Sheets and strips - B53 according to TU 1-5-357-75 and GOST 23 755-79;

Non-ferrous metals, including rare metals, and their alloys - B51 according to TU 1-5-453-78 and OST 1 92 077-91

Percentage composition of titanium alloy 40 according to GOST 19 807- - 91

Mo Ti N Si C Fe Zr Al V O Impurities
1.8 - 3.5 87.29 - 93.9 ≤0.04 ≤0.12 ≤0.1 ≤0.25 ≤0.3 3.5 - 5.6 0.5 - 2.5 ≤0.15 Others 0.3

Note: Titanium is the base material and has a material content of about 87.29 to 93.9%.

Physical Characteristics of Alloy 40.

Grad kg/m3 Ohm-m W/(m-grad) 1/Grad MPa J/(kg-grad)
T r R 10 9 18.85 E 10- 5 C
20 4505 8.2 1.12
100 l a 10 6 540

Mechanical characteristics of alloy 40 (temperature 20°C).

- MPa - kJ/m2 mm - % % MPa
Range sT Heat treatment. KCU Size E.g. d5 y s in
GOST 27 265-87 16-20 490-635

Physical property labeling:

Description Designation
- Alloy data acquisition temperature [degrees] - T
- Modulus of elasticity of the 1st kind, [MPa] - E
- Coefficient of thermal linear expansion (at 20°C), [1/Grad] -a
- Specific electrical resistance [Ohm-m] -R -R
- Specific gravity [g/cm3] -r -r
- Heat transfer coefficient [W/(m-grad)] -l -l
- Specific heat capacity (at 20°C), [J/(kg-grad) -C

Marking of mechanical properties:

Description Designation
- Limit of proportionality (yield strength for permanent deformation) [MPa] sT
- Tensile strength [MPa] sT
- Ratio constriction [ % ] y
- Tensile elongation [ % ] d5
- Brinell hardness, in [MPa] HB
- Impact toughness [ kJ/m2 ] KCU


Designation Description
limited weldable - Must be preheated to 100-120°C with subsequent heat treatment
no restrictions - No need for preheating and final heat treatment
Difficult to weld - need for preliminary heating to 200-300°C with final heat treatment


High-strength titanium alloys are alloyed with vanadium and aluminum, while heat resistance is achieved with molybdenum and aluminum additives. Most titanium alloys in use contain molybdenum, aluminum, and vanadium at the same time. Such alloys are distinguished by particularly high strength and corrosion resistance. Aluminum is the main alloying element, and is as important to titanium alloys as carbon is to iron. The second most important component is molybdenum.

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Evek GmbH has an unlimited range of titanium mill products of the highest quality. We offer titanium alloy 40 at an optimal price. If you are interested in our offer, please contact your nearest office. Qualified specialists will provide all necessary information regarding products, price range, sales conditions. The cost of goods depends on the parameters of products and additional terms of delivery.