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AMS 4640

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Description

AMS 4640 is a Nickel Aluminum Bronze. It contains 5% nickel and is heat treatable. It's properties include corrosion resistance, extremely high strength and excellent bearing properties at considerable loads. It is available in rod and forged form.

Related Standards

Equivalent Materials

Properties

General

Density ρ

7.58 g/cm³ at 20 °C

Mechanical

Hardness, Rockwell B HRB

180 - 240 [-] at 20 °C

Thermal

Melting point Tm

1049 - 1071 °C

Chemical properties

Element

Weight %

Comment

Cu

-

Balance

Al

10 %

Ni

4.8 %

Fe

3.7 %

Mn

0.3 %

This material data has been provided by Righton Blackburns.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.