United Kingdom · B.S.

TA 49

BS TA 49:1973 — Specification for bar and section for machining of titanium-aluminium-molybdenum-tin-silicon alloy (tensile strength 1000-1200 N/mm2) (limiting ruling section over 100 mm up to and including 150 mm)

Chemical composition

Element	min	max	Similar	Remarks
Al	3	5
Fe		0.2
H		0.0125
Mo	3	5
N		0.03
O		0.25
Si	0.3	0.7
Sn	1.5	2.5
Ti			Bal	Bal

Mechanical properties

Heat treatment / condition	Yield strength	Tensile strength	Elongation	Reduction of area	Impact energy	Hardness
bars, sections, Heat treated, ?????????????????????????????????????????????????	≤870	≤1000	≤9

Physical properties

Temperature

20.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
116.00					4.60

100.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
	8.80

200.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
	9.00

300.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
	9.20

400.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
	9.30

500.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
	9.70

Typical physical values

Density	Elastic modulus	Poisson's ratio	Remarks
4.30–5.10	80.00–130.00		典型性能值: 钛及钛合金。该数值并非来自发行标准，它仅是指标性的，不能用于设计用途。

Similar grades

Grade	Region	System
TA 46	United Kingdom	B.S.
TA 45	United Kingdom	B.S.