## Spring Tensile Strength

An oil-tempered wire with a diameter of 10 mm will be used as a spring material in an assembly. Calculate the minimum tensile strength of the wire.

##
__
__**Hint**

**Hint**

For spring materials, the minimum tensile strength for common spring steels can be determined from:

$$$S_{ut}=\frac{A}{d^{m}}$$$

where
$$S_{ut}$$
is the tensile strength in MPa, and
$$d$$
is the wire diameter in millimeters.

##
__
__**Hint 2**

**Hint 2**

$$A$$
and
$$m$$
can be found in the below table:

For spring materials, the minimum tensile strength for common spring steels can be determined from:

$$$S_{ut}=\frac{A}{d^{m}}$$$

where
$$S_{ut}$$
is the tensile strength in MPa,
$$d$$
is the wire diameter in millimeters, and
$$A$$
and
$$m$$
can be found in the below table:

Since the problem is asking for the minimum tensile strength of an oil-tempered wire:

$$$S_{ut}=\frac{1610}{(10mm)^{0.193}}=\frac{1610}{1.5596}=1,032\: MPa$$$

1,032 MPa